Current Limit Versus Energy Limit Based PSE
|
|
- Damon Miles
- 8 years ago
- Views:
Transcription
1 Current Limit Versus Energy Limit Based PSE Thong Huynh Maxim Integrated Products Thong Huynh - IEEE 802.3at Interim Seoul - Sept 07 1
2 Review of PoE+ System Consideration PoE+ System Requirements: System Inter-Operability Allow Safe Maximum Possible Power Delivered from PSE to PD Adhere to the Maximum Current Allowed *: In the Cable In the Connector In the Patch Panel In the LAN Magnetics Backward Compatible w/ 802.3af Legacy Devices Support 180uF capacitor on PD Simplify Compliant Testing *Note: Maximum current value for cable, connector, and patch panel are determined by heating effect which causes by DC/RMS current. Low level transient current that lasted less than a few seconds does not cause significant heating and could be neglected Thong Huynh - IEEE 802.3at Interim Seoul - Sept 07 2
3 Review of PoE+ System Consideration PSE Requirements: PD Detection, L1 Classification, Optional L2 Classification Handle Input Power Supply Voltage Transient Protect Port Short Circuit Condition Provide as Much Power as Possible to the PD, Limited only by the Cable Capability PD Requirements: Provide Detection and Classification Signatures Manage Input Ripple Current Handle Load Step Transient Utilize as Much Power as Possible from the PSE When the Application Requires Thong Huynh - IEEE 802.3at Interim Seoul - Sept 07 3
4 MOSFET Power Dissipation During Inrush Period for Both PoE and PoE PSEs 57V V DS Vport 0V Ilim (400mA) 26ms t = C dv/i = 180uF x 57V / 400mA = 26 ms peak = 57V x 400mA = 22.8W = 1/2 x peak x t = 1/2 x 22.8W x 26ms = 296.4mJ Energy Dissipated in the MOSFET During Inrush - PoE & PoE+ Thong Huynh - IEEE 802.3at Interim Seoul - Sept 07 4
5 Current Limit Based - Input Voltage Transient: PoE PoE+ 57V 57V Vps Vport 50V 7V 44V Ilim min (400mA) 13V 46.8ms Ilim min (820mA) Ilim min (770mA) 12.6ms 25.6ms Icut min (350mA) 50mA Icut min (720mA) 100mA 50mA In PoE+ system, there is plenty of head room to handle input transient and PD load step at the same time Thong Huynh - IEEE 802.3at Interim Seoul - Sept 07 5
6 Current Limit Based - MOSFET Power Dissipation During Input Transient for PoE+ PSE V DS 57V Vport 50V Ilim (820mA) 7V 25.2ms t = C dv/i = 180uF x 7V / 50mA = 25.2 ms peak = 7V x 820mA = 5.74W Current Limit Based PSE Limits the Peak Current to 820mA = 1/2 x peak x t = 1/2 x 5.74W x 25.2ms = 72.3mJ Energy Dissipated in the MOSFET During Input Transient and PD Load Step, Allowing 50mA Load Step above PD maximum average current for 50ms - PoE+ Thong Huynh - IEEE 802.3at Interim Seoul - Sept 07 6
7 Current Limit Based Output Short Circuit Current Limit Based PSE Limits the Peak Current to 820mA Thong Huynh - IEEE 802.3at Interim Seoul - Sept 07 7
8 MOSFET Power Dissipation Calculation 57V V 57V DS V DS Vport Vport 0V Ilim (400mA) 26ms t = C dv/i = 180uF x 57V / 400mA = 26 ms 50V Ilim (820mA) 7V 25.2ms t = C dv/i = 180uF x 7V / 50mA = 25.2 ms peak = 57V x 400mA = 22.8W peak = 7V x 820mA = 5.74W = 1/2 x peak x t = 1/2 x 22.8W x 26ms = 296.4mJ = 1/2 x peak x t = 1/2 x 5.74W x 25.2ms = 72.3mJ Energy Dissipated in the MOSFET During Inrush - PoE & PoE+ Energy Dissipated in the MOSFET During Input Transient and PD Load Step, Allowing 50mA Load Step above PD maximum average current for 50ms - PoE+ MOSFET Power Dissipation Dominates During Inrush Period Thong Huynh - IEEE 802.3at Interim Seoul - Sept 07 8
9 Truth or Myth? Current Limit Based Causes Higher Power Dissipation in the Power MOSFET in PoE+ System? Myth The Truth is: Power Dissipation in the MOSFET is Largest During the Inrush Period. This Power Dissipation is the same for PoE and PoE+ Systems, Whether Current Limit or Energy Limit Based is used. This Large Power Dissipation During Inrush is What Has Been Impeding the Integration of the Power MOSFET in the PSE Controller. Thong Huynh - IEEE 802.3at Interim Seoul - Sept 07 9
10 Energy Limit Based - Input Voltage Transient Short Cable: Rcable = 1.0Ω (estimated: includes all PSE power path impedances) Input Voltage Transient from 50V to 57V dv/dt maximum = 3.5V/us PD capacitance = 180uF Peak Current Due to dv/dt = 180uF x 3.5V/us = 630A! Peak Current is Limited Only by Rcable = (57V 50V)/1.0Ω = 7A Energy Limit Based PSE Does Not Limit the Peak Current! Thong Huynh - IEEE 802.3at Interim Seoul - Sept 07 10
11 Energy Limit Based - Output Short Circuit Short Cable: Rcable = 1.0Ω (estimated: includes all PSE power path impedances) Input Voltage = 57V Maximum Peak Current is Limited Only by Rcable = 57V/1.0Ω = 57A Energy Limit Based PSE Does Not Limit the Peak Current! Thong Huynh - IEEE 802.3at Interim Seoul - Sept 07 11
12 Energy Based PSE - Testability Energy Based PSE Dictates Complex Model for Testing Graph is from the Vport Ad-Hoc presentation Thong Huynh - IEEE 802.3at Interim Seoul - Sept 07 12
13 Current Limit vs Energy Limit for PoE+ PSE Current Limit Energy Limit Advantages/Problem MOSFET Power Dissipation During Inrush 246.4mJ 246.4mJ Same Peak Current During Input Transient short cable 820mA (920mA Maximum) 7A Current is guaranteed to be limited High current peak can saturate and possibly damage the LAN Magnetics Peak Current During Output Short Circuit 820mA (920mA Maximum) 57A Current is guaranteed to be limited High current peak can saturate the LAN Magnetics, possibly damage it and other such as connector and patch panel Testability Simple and same as 802.3af Complex Curve Energy Limit Based PSE Added testing complexity and cost Thong Huynh - IEEE 802.3at Interim Seoul - Sept 07 13
14 Conclusion: Energy Limit Based For PoE+ System Energy Limit Based PSE Does Not Limit Peak Current During Input Transient Possible LAN Magnetics Core Saturation and Data Corruption? Energy Limit Based PSE Does Not Limit Peak Current During Output Short Circuit Possible Damage to Connector, Patch Panel, LAN Magnetics? Energy Limit Based PSE Creates Challenges For Compliant Testing Thong Huynh - IEEE 802.3at Interim Seoul - Sept 07 14
15 Conclusion: Current Limit Based For PoE+ System Current Limit Based PSE Can Easily Handle Simultaneous Input Voltage Transient and PD s Load Step Current Limit Based Assures PSE Port Current < 926mA Maximum for < 75ms During Input Transient Current Limit Based PSE Assures Port Current < 926mA Maximum for < 75ms During Output Short Circuit Current Limit Based PSE Eases Compliant Testing Current Limit Based is the Recommended Technique to Limit the PSE Port Current in PoE+ System Thong Huynh - IEEE 802.3at Interim Seoul - Sept 07 15
Silvertel. Ag5200. 1 Features. 2 Description. Power-over-Ethernet Plus Module. IEEE802.3at and IEEE802.3af compliant. Maximum 30W output power
Silvertel V1.1 November 2012 Datasheet Pb 1 Features IEEE802.3at and IEEE802.3af compliant Maximum 30W output power Dual In-Line (DIL) package size 50.6mm (L) x 30mm (W) Overload, short-circuit and thermal
More informationPower over Ethernet (PoE) Power Requirements FAQ
Power over Ethernet (PoE) Power Requirements FAQ Document ID: 97869 Questions Introduction What is Power over Ethernet? What is the difference between inline power and PoE? What is the difference between
More informationNCP1090GEVB, NCP1094GEVB. Power-over-Ethernet PD Interface Evaluation Board User's Manual EVAL BOARD USER S MANUAL. http://onsemi.
NCP1090GEVB, NCP1094GEVB Power-over-Ethernet PD Interface Evaluation Board User's Manual Introduction The NCP1090GEVB and NCP1094GEVB evaluation boards are designed to showcase the features of the NCP109x
More informationPower over Ethernet (PoE)
Power over Ethernet (PoE) Power over Ethernet (PoE) sends direct current (DC) voltage and computer data over the same Ethernet cable, enabling a device to receive DC power and computer data simultaneously.
More informationSilvertel. Ag9800M. 1. Features. 2. Description. Miniature PoE Module. Small SMT package. IEEE802.3af compliant. Low cost
Silvertel V1.2 December 2014 Datasheet Ag9800M Miniature PoE Module Pb 1. Features Small SMT package IEEE802.3af compliant Low cost Input voltage range 36V to 57V Minimal external components required Short-circuit
More informationA New PoE Application: Power Backup For Desktop Computers. Steve Robbins
A New PoE Application: Power Backup For Desktop Computers Steve Robbins Introduction A potentially huge application for PoE that has not yet been explored is desktop computers. PoE can provide enough power
More informationPower over Ethernet. IEEE 802.3af
Power over Ethernet IEEE 802.3af Introduction The networking of industrial plants is an important topic in the world of automation and is constantly increasing. Based on the role model of the office networks,
More informationPD Power Bandwidth- Worst Case Analysis July 2008
IEEE P802.3at Task Force Power Via MDI Enhancements PD Power Bandwidth- Worst Case Analysis July 2008 Yair Darshan / Microsemi Corporation PD Power Bandwidth- Worst Case Analysis, Yair Darshan, May, 2008
More informationWINGLIKE ELECTRONICS CO.,LTD
WINGLIKE ELECTRONICS CO.,LTD SPECIFICATION FOR APPROVAL AC/DC ADAPTOR CUSTOMER: CUSTOMER SPECS INPUT: 100-240V AC 50-60HZ, 5V/2A ADAPTOR OUR MODEL NO.: GM-050200 (UL) E321192 SPECIFICATION NO.: WL1105102
More informationAN 17.18. SMSC Design Guide for Power Over Ethernet Applications. 1 Introduction. 1.1 Power Over Ethernet
AN 17.18 SMSC Design Guide for Power Over Ethernet Applications 1 Introduction 1.1 Power Over Ethernet Power over Ethernet (POE) has emerged as a practical method of providing power to Ethernet devices
More informationEAGLE Power over Ethernet Products for IP Powering Applications. Flexibility, Simplicity and Value LAN POWER SYSTEMS. Trend Datacom USA, Inc.
EAGLE Power over Ethernet Products for IP Powering Applications Flexibility, Simplicity and Value LAN POWER SYSTEMS Trend Datacom USA, Inc. Presentation Agenda IEEE802.3af PoE Technology Definitions and
More informationCOBRA Power over Ethernet Products for IP Surveillance Applications LAN POWER SYSTEMS. Trend Datacom USA, Inc.
COBRA Power over Ethernet Products for IP Surveillance Applications LAN POWER SYSTEMS Trend Datacom USA, Inc. Presentation Agenda IEEE802.3af PoE Technology Definitions and Implementations IP Surveillance
More information2.996/6.971 Biomedical Devices Design Laboratory Lecture 4: Power Supplies
2.996/6.971 Biomedical Devices Design Laboratory Lecture 4: Power Supplies Instructor: Dr. Hong Ma Sept. 19, 2007 Key Problem Ideal voltage sources do not exist! Voltage regulators use feedback to reduce
More informationAll You Need To Know About Power over Ethernet (PoE) and the IEEE 802.3af Standard
White Paper All You Need To Know About Power over Ethernet (PoE) and the IEEE 802.3af Standard Galit Mendelson Senior Product Manager June 2004 PowerDsine Proprietary Information All You Need To Know About
More informationPower over Ethernet (PoE) Explained
Power over Ethernet (PoE) Explained What is Power over Ethernet? Power over Ethernet (POE) is a technology that lets network cables carry electrical power. For example, a digital security camera normally
More informationIEEE802.3 4P Task Force Channel Pair To Pair Resistance Imbalance. (End to End System Imbalance) Ad Hoc
IEEE802.3 4P Task Force Channel Pair To Pair Resistance Imbalance (End to End System Imbalance) Ad Hoc Meeting #1: Rev_000 Monday February 17, 2014 March 2014 Beijing China Yair Darshan Microsemi ydarshan@microsemi.com
More informationAND8247/D. Application Note for a 5.0 to 6.5 W POE DC to DC Converter APPLICATION NOTE
Application Note for a 5.0 to.5 W POE DC to DC Converter Prepared by: Frank Cathell ON Semiconductor APPLICATION NOTE INTRODUCTION A solution to one aspect of Power Over Ethernet (POE) is presented here
More informationLM78XX Series Voltage Regulators
LM78XX Series Voltage Regulators General Description Connection Diagrams The LM78XX series of three terminal regulators is available with several fixed output voltages making them useful in a wide range
More informationWhite Paper. Power over Ethernet Plus Update and Cabling Considerations
White Paper Power over Ethernet Plus Update and Cabling Considerations Power over Ethernet Plus Update and Cabling Considerations TABLE OF CONTENTS 1. Introduction...3 2. Application Objectives...5 3.
More informationThe ABCs of Power Over Ethernet
The ABCs of Power Over Ethernet Industrial Ethernet as a Fieldbus Industrial Ethernet, as a fieldbus replacement technology, lacks two attributes found in fieldbuses. The first is bus topology. The second
More informationPhotolink- Fiber Optic Receiver PLR135/T1
Features High PD sensitivity optimized for red light Data : NRZ signal Low power consumption for extended battery life Built-in threshold control for improved noise Margin The product itself will remain
More informationLaying the groundwork for a new level of Power over Ethernet
White Paper Laying the groundwork for a new level of Power over Ethernet June, 2014 Contents Laying the groundwork for a new level of Power over Ethernet 3 PoE basics 4 PoE standards development 5 Four-pair
More informationNotes about Small Signal Model. for EE 40 Intro to Microelectronic Circuits
Notes about Small Signal Model for EE 40 Intro to Microelectronic Circuits 1. Model the MOSFET Transistor For a MOSFET transistor, there are NMOS and PMOS. The examples shown here would be for NMOS. Figure
More informationPower MOSFET FEATURES. IRF610PbF SiHF610-E3 IRF610 SiHF610. PARAMETER SYMBOL LIMIT UNIT Drain-Source Voltage V DS 200 V Gate-Source Voltage V GS ± 20
Power MOSFET PRODUCT SUMMARY (V) 00 R DS(on) ( ) = 1.5 Q g (Max.) (nc) 8. Q gs (nc) 1.8 Q gd (nc) 4.5 Configuration Single FEATURES Dynamic dv/dt Rating Repetitive Avalanche Rated Fast Switching Ease of
More informationPower MOSFET FEATURES. IRF740PbF SiHF740-E3 IRF740 SiHF740. PARAMETER SYMBOL LIMIT UNIT Drain-Source Voltage V DS 400 V Gate-Source Voltage V GS ± 20
Power MOSFET PRODUCT SUMMARY (V) 400 R DS(on) (Ω) = 0.55 Q g (Max.) (nc) 63 Q gs (nc) 9.0 Q gd (nc) 3 Configuration Single FEATURES Dynamic dv/dt Rating Repetitive Avalanche Rated Fast Switching Ease of
More informationUMEC International Corporation
UP1301A SERIES 130 Watt Open Frame Switchers Small Size 3*5*1.2(inches) Universal Input to 264 VAC Low Power Consumption Overvoltage Protection Continuous Short Circuit Protection Over Temperature Protection
More informationIRLR8729PbF IRLU8729PbF
Applications l High Frequency Synchronous Buck Converters for Computer Processor Power l High Frequency Isolated DC-DC Converters with Synchronous Rectification for Telecom and Industrial Use Benefits
More informationDesign Guidelines for PoE Based Security Systems. Carlos Carle, P.E. SignaMax Systems, Inc.
Design Guidelines for PoE Based Security Systems Carlos Carle, P.E. SignaMax Systems, Inc. What is PoE? Power Over Ethernet or PoE Technology describes a system to safely transfer electrical power, along
More informationThe first part of this application note, will look at the requirement of the IEEE specifications and how they relate to IEC 60950.
This application note has been written to explain the requirement of the isolation barrier with PoE (Power over Ethernet) covered by IEEE802.3af and PoE+ covered by IEEE802.3at. The first part of this
More informationPower MOSFET FEATURES. IRF520PbF SiHF520-E3 IRF520 SiHF520. PARAMETER SYMBOL LIMIT UNIT Drain-Source Voltage V DS 100 V Gate-Source Voltage V GS ± 20
Power MOSFET PRODUCT SUMMARY (V) 100 R DS(on) ( ) = 0.7 Q g (Max.) (nc) 16 Q gs (nc) 4.4 Q gd (nc) 7.7 Configuration Single TO0AB G DS ORDERING INFORMATION Package Lead (Pb)free SnPb G D S NChannel MOSFET
More informationC Soldering Temperature, for 10 seconds 300 (1.6mm from case )
l Advanced Process Technology l Ultra Low On-Resistance l Dynamic dv/dt Rating l 75 C Operating Temperature l Fast Switching l Fully Avalanche Rated l Optimized for SMPS Applications Description Advanced
More informationSELECTION GUIDE INPUT CHARACTERISTICS. Voltage set point accuracy. Overall voltage error. Temperature coefficient of output voltage (slope)
OBSOLETE NMPD0 Series SELECTION GUIDE Order Code Nominal Input Voltage Output Voltage Efficiency (Min.) Power (Max.) V V % W NMPD003C 3. 9.50 NMPD005C 5. 9.5 NMPD0C. 0 0.00 NMPD05C 5. 9 0.00 FEATURES RoHS
More informationInfluence of Short Circuit conditions on IGBT Short circuit current in motor drives
Influence of Short Circuit conditions on IGBT Short circuit current in motor drives Vijay Bolloju, IGBT Applications Manager, International Rectifier, El Segundo, CA USA Jun Yang IGBT Applications Engineer,
More informationRoHS Compliant Containing no Lead, no Bromide and no Halogen. IRF9310PbF SO8 Tube/Bulk 95 IRF9310TRPbF SO8 Tape and Reel 4000
PD 97437A IRF93PbF HEXFET Power MOSFET V DS 30 V R DS(on) max (@V GS = V) I D (@T A = 25 C) 4. mω 20 A * SO8 Applications Charge and Discharge Switch for Notebook PC Battery Application Features and Benefits
More informationM7250P. PoE Powered. Gigabit Ethernet Media Converter 1000BASE-TX TO 1000BASE-SX/LX. Installation Guide
M7250P PoE Powered Gigabit Ethernet Media Converter 1000BASE-TX TO 1000BASE-SX/LX Installation Guide September 2009 VERSITRON, Inc. 83 Albe Drive - Suite C Newark, DE 19702 www.versitron.com www.versitron.com
More informationEngineering Advisory 48152 Power Consumption and Management on Polycom Phones
Consumption and Management on Polycom Phones This engineering advisory shows detailed information about the power consumption and management of the Polycom SoundPoint IP desktop phones, Polycom SoundStation
More informationDesign Considerations for an LLC Resonant Converter
Design Considerations for an LLC Resonant Converter Hangseok Choi Power Conversion Team www.fairchildsemi.com 1. Introduction Growing demand for higher power density and low profile in power converter
More informationPower MOSFET. IRF510PbF SiHF510-E3 IRF510 SiHF510. PARAMETER SYMBOL LIMIT UNIT Drain-Source Voltage V DS 100 V Gate-Source Voltage V GS ± 20
Power MOSFET PRODUCT SUMMARY (V) 100 R DS(on) () = 0.54 Q g max. (nc) 8.3 Q gs (nc) 2.3 Q gd (nc) 3.8 Configuration Single D TO220AB G FEATURES Dynamic dv/dt rating Available Repetitive avalanche rated
More informationPower MOSFET FEATURES. IRL540PbF SiHL540-E3 IRL540 SiHL540
Power MOSFET PRODUCT SUMMARY (V) 100 R DS(on) (Ω) = 5.0 V 0.077 Q g (Max.) (nc) 64 Q gs (nc) 9.4 Q gd (nc) 27 Configuration Single TO220AB G DS ORDERING INFORMATION Package Lead (Pb)free SnPb G D S NChannel
More informationPower MOSFET FEATURES. IRFZ44PbF SiHFZ44-E3 IRFZ44 SiHFZ44 T C = 25 C
Power MOSFET PRODUCT SUMMARY (V) 60 R DS(on) (Ω) V GS = 10 V 0.028 Q g (Max.) (nc) 67 Q gs (nc) 18 Q gd (nc) 25 Configuration Single FEATURES Dynamic dv/dt Rating 175 C Operating Temperature Fast Switching
More informationHowever, industrial applications may utilize a relay, which short-circuits the ICL path after the inrush sequence.
Application note for Inrush Current Limiters (ICL) Turning on electrical devices generally cause high inrush currents which can damage electronic components and cause interruption of the line voltage if
More informationFiber s Role in the Video Security & Surveillance Network. Curt Carlson Product Manager Transition Networks
Fiber s Role in the Video Security & Surveillance Network Curt Carlson Product Manager Transition Networks Video technology overview Typical video network architecture Limitations of copper-based cabling
More informationHomework #11 203-1-1721 Physics 2 for Students of Mechanical Engineering
Homework #11 203-1-1721 Physics 2 for Students of Mechanical Engineering 2. A circular coil has a 10.3 cm radius and consists of 34 closely wound turns of wire. An externally produced magnetic field of
More informationAUTOMOTIVE MOSFET. C Soldering Temperature, for 10 seconds 300 (1.6mm from case )
PD 9399A AUTOMOTIVE MOSFET Typical Applications Electric Power Steering (EPS) Antilock Braking System (ABS) Wiper Control Climate Control Power Door Benefits Advanced Process Technology Ultra Low OnResistance
More informationDEVELOPMENTS IN POWER OVER ETHERNET
Venture Development Corporation Power Conversion and Control Practice A Bulletin on: DEVELOPMENTS IN POWER OVER ETHERNET AND POE PLUS Lack of Final Power over Ethernet Plus Standard Is Not Hindering New
More informationAAT4280 Slew Rate Controlled Load Switch
General Description Features SmartSwitch The AAT4280 SmartSwitch is a P-channel MOSFET power switch designed for high-side load switching applications. The P-channel MOSFET device has a typical R DS(ON)
More informationPower MOSFET. IRF9520PbF SiHF9520-E3 IRF9520 SiHF9520. PARAMETER SYMBOL LIMIT UNIT Drain-Source Voltage V DS - 100 V Gate-Source Voltage V GS ± 20
Power MOSFET PRODUCT SUMMARY (V) 100 R DS(on) ( ) = 10 V 0.60 Q g (Max.) (nc) 18 Q gs (nc) 3.0 Q gd (nc) 9.0 Configuration Single TO220AB G DS ORDERING INFORMATION Package Lead (Pb)free SnPb G S D PChannel
More informationEPL225 Series. 225 Watts. www.xppower.com. AC-DC Power Supplies. Models & Ratings. Summary
225 Watts 50 W Convection/ 225 W Forced-cooled Ratings 2 by 4 Footprint Low.26 Profile 2 V Fan Output High Efficiency, up to 95% ITE & Medical pprovals High Power Density Less than 0.5 W No Load Input
More informationHow To Make Power Over Ethernet A Viable Alternative To A Network Cable (Networking)
POWERSense TM : Power over Ethernet BELDENCDT Networking 2004, Belden CDT Inc. All rights reserved. POWERSense TM Presentation Agenda IEEE802.3af PoE Technology Definitions, implementation, components
More informationPower MOSFET FEATURES. IRF740PbF SiHF740-E3 IRF740 SiHF740. PARAMETER SYMBOL LIMIT UNIT Drain-Source Voltage V DS 400 V Gate-Source Voltage V GS ± 20
Power MOSFET PRODUCT SUMMARY (V) 400 R DS(on) (Ω) = 0.55 Q g (Max.) (nc) 63 Q gs (nc) 9.0 Q gd (nc) 3 Configuration Single FEATURES Dynamic dv/dt Rating Repetitive Avalanche Rated Fast Switching Ease of
More informationPreliminary Datasheet
Features Macroblock Preliminary Datasheet 1.2A Constant Output Current 93% Efficiency @ input voltage 13V, 350mA, 9~36V Input Voltage Range Hysteretic PFM Improves Efficiency at Light Loads Settable Output
More informationMM74C150 MM82C19 16-Line to 1-Line Multiplexer 3-STATE 16-Line to 1-Line Multiplexer
MM74C150 MM82C19 16-Line to 1-Line Multiplexer 3-STATE 16-Line to 1-Line Multiplexer General Description The MM74C150 and MM82C19 multiplex 16 digital lines to 1 output. A 4-bit address code determines
More informationAn Ethernet Cable Discharge Event (CDE) Test and Measurement System
An Ethernet Cable Discharge Event (CDE) Test and Measurement System Wei Huang, Jerry Tichenor ESDEMC Technology LLC Rolla, MO, USA whuang@esdemc.com Abstract A Cable Discharge Event (CDE) is an electrostatic
More informationHow To Write A Gmii Electrical Specifier
GMII Electrical Specification IEEE Interim Meeting, San Diego, January 1997 Dave Fifield 1-408-721-7937 fifield@lan.nsc.com N GMII Electrical Specification - Goals Compatibility with ANSI TR/X3.18-199x
More informationPower MOSFET FEATURES. IRF540PbF SiHF540-E3 IRF540 SiHF540. PARAMETER SYMBOL LIMIT UNIT Drain-Source Voltage V DS 100 V Gate-Source Voltage V GS ± 20
Power MOSFET PRODUCT SUMMARY (V) 100 R DS(on) ( ) = 0.077 Q g (Max.) (nc) 72 Q gs (nc) 11 Q gd (nc) 32 Configuration Single TO220AB G DS ORDERING INFORMATION Package Lead (Pb)free SnPb G D S NChannel MOSFET
More informationSELECTION GUIDE. Nominal Input
www.murata-ps.com NKE Series FEATURES RoHS Compliant Sub-Miniature SIP & DIP Styles 3kVDC Isolation UL Recognised Wide Temperature performance at full 1 Watt load, 40 C to 85 C Increased Power Density
More informationLower Conduction Losses Low Thermal Resistance to PCB ( 0.5 C/W)
PD -97428 IRFH5020PbF HEXFET Power MOSFET V DS 200 V 55 m: R DS(on) max (@V GS = V) Q g (typical) 36 nc R G (typical).9 : I D (@T c(bottom) = 25 C) 43 A PQFN 5X6 mm Applications Secondary Side Synchronous
More informationInrush Current. Although the concepts stated are universal, this application note was written specifically for Interpoint products.
INTERPOINT Although the concepts stated are universal, this application note was written specifically for Interpoint products. In today s applications, high surge currents coming from the dc bus are a
More informationLM1084 5A Low Dropout Positive Regulators
5A Low Dropout Positive Regulators General Description The LM1084 is a series of low dropout voltage positive regulators with a maximum dropout of 1.5 at 5A of load current. It has the same pin-out as
More informationServer Technology, Inc.
Server Technology, Inc. Power Efficiency Gains by Deploying 415 VAC Power Distribution in North American Data Centers White Paper STI-100-008 2009-April-07 Headquarters Server Technology, Inc. 1040 Sandhill
More informationIRF150 [REF:MIL-PRF-19500/543] 100V, N-CHANNEL. Absolute Maximum Ratings
PD - 90337G REPETITIVE AVALANCHE AND dv/dt RATED HEXFET TRANSISTORS THRU-HOLE (TO-204AA/AE) Product Summary Part Number BVDSS RDS(on) ID IRF150 100V 0.055Ω 38A IRF150 JANTX2N6764 JANTXV2N6764 [REF:MIL-PRF-19500/543]
More informationAdvanced Monolithic Systems
Advanced Monolithic Systems FEATURES Three Terminal Adjustable or Fixed oltages* 1.5, 1.8, 2.5, 2.85, 3.3 and 5. Output Current of 1A Operates Down to 1 Dropout Line Regulation:.2% Max. Load Regulation:.4%
More informationHigh Efficiency Battery Charger using Power Components [1]
application note TPB:101 High Efficiency Battery Charger using Power Components [1] Marco Panizza Senior Applications Engineer July 2006 Contents Page Introduction 1 A Unique Converter 1 Control Scheme
More informationN-Channel 60-V (D-S), 175 C MOSFET
N-Channel 6-V (D-S), 75 C MOSFET SUP/SUB7N6-4 V (BR)DSS (V) r DS(on) ( ) (A) 6.4 7 a TO-22AB D TO-263 DRAIN connected to TAB G G D S Top View SUP7N6-4 G D S Top View SUB7N6-4 S N-Channel MOSFET Parameter
More informationMEETING TRANSIENT SPECIFICATIONS FOR ELECTRICAL SYSTEMS IN MILITARY VEHICLES
MEETING TRANSIENT SPECIFICATIONS FOR ELECTRICAL SYSTEMS IN MILITARY VEHICLES By Arthur Jordan Sr. Applications Engineer, Vicor Electrical systems in military vehicles are normally required to meet stringent
More information8-Port PoE Network Switch
Page 1 of 12 8-Port PoE Network Switch User s Guide Document Number 91I00-1 Rev A August, 2009 FCC Warning: Page 2 of 12 This devices has been tested and found to comply with the regulations for Class
More informationR-78xx-0.5 INNOLINE. Features. 0.5 AMP SIP3 Single Output. Derating-Graph (Ambient Temperature) DC/DC-Converter
Features Description Efficiency up to 97%,Non isolated, no need for heatsinks Pin-out compatible with LM78XX Linears Very low profile( L*W*H=11.5*7.5*10.2 ) Wide input range.(4.75v ~ 32V) Short circuit
More informationInput and Output Capacitor Selection
Application Report SLTA055 FEBRUARY 2006 Input and Output Capacitor Selection Jason Arrigo... PMP Plug-In Power ABSTRACT When designing with switching regulators, application requirements determine how
More informationPower over Ethernet technology for industrial Ethernet networks
Power over Ethernet technology for industrial Ethernet networks Introduction Ethernet networking has grown beyond office and home usage to become a very successful protocol suite used in many industrial
More information1.5A Very L.D.O Voltage Regulator LM29150/29151/29152
FEATURES High Current Capability 1.5A Low Dropout Voltage 350mV Low Ground Current Accurate 1% Guaranteed Initial Tolerance Extremely Fast Transient Response Reverse-Battery and "Load Dump" Protection
More informationTDA2040. 20W Hi-Fi AUDIO POWER AMPLIFIER
20W Hi-Fi AUDIO POWER AMPLIFIER DESCRIPTION The TDA2040 is a monolithic integrated circuit in Pentawatt package, intended for use as an audio class AB amplifier. Typically it provides 22W output power
More informationCOMMON-SOURCE JFET AMPLIFIER
EXPERIMENT 04 Objectives: Theory: 1. To evaluate the common-source amplifier using the small signal equivalent model. 2. To learn what effects the voltage gain. A self-biased n-channel JFET with an AC
More informationHexadecimal and Numeric Indicators. Technical Data 5082-7300 5082-7302 5082-7304 5082-7340
H Hexadecimal and Numeric Indicators Technical Data 5082-7300 5082-7302 5082-7304 5082-7340 Features Numeric 5082-7300/-7302 0-9, Test State, Minus Sign, Blank States Decimal Point 7300 Right Hand D.P.
More informationDES-1005P 5-Port 10/100Mbps with 1-Port PoE Unmanaged Switch
DES-1005P 5-Port 10/100Mbps with 1-Port PoE Unmanaged Switch Manual RECYCLABLE V1.01 TABLE OF CONTENTS About This Guide... 1 Purpose... 1 Introduction... 2 Fast Ethernet Technology... 2 Switching Technology...
More information1 Form A Solid State Relay
Form A Solid State Relay VOAT, VOAABTR FEATURES 9 S S DC S' 3 S' High speed SSR - t on /t off < 8 μs Maximum R ON. Isolation test voltage 3 V RMS Load voltage V Load current A DC configuration DIP- package
More informationNV-EC1701. Ethernet over Coax Transceiver www.nvt.com (+1) 650.462.8100 (+44) (0) 208 977 6614. Model NV-EC1701
EoC Ethernet over Coax Transceiver with PoE+ Data Sheet Application Example: IP Camera Cat5 100m ( 328ft) NV-EC1701 Ethernet over Coax Transceiver www.nvt.com (+1) 650.462.8100 (+44) (0) 208 977 6614 Coax
More informationPower MOSFET FEATURES. IRF9640PbF SiHF9640-E3 IRF9640 SiHF9640
Power MOSFET PRODUCT SUMMARY V DS (V) 200 R DS(on) (Ω) = 10 V 0.50 Q g (Max.) (nc) 44 Q gs (nc) 7.1 Q gd (nc) 27 Configuration Single TO220AB G DS ORDERING INFORMATION Package Lead (Pb)free SnPb G S D
More informationSTF201-22 & STF201-30
Description The STF201 is a combination EMI filter and line termination device with integrated TVS diodes for use on downstream USB ports. It is constructed using a proprietary technology that allows passive
More informationES250: Electrical Science. HW7: Energy Storage Elements
ES250: Electrical Science HW7: Energy Storage Elements Introduction This chapter introduces two more circuit elements, the capacitor and the inductor whose elements laws involve integration or differentiation;
More informationSymbol Parameter Value Unit V i-o Input-output Differential Voltage 40 V I O Output Current Intenrally Limited Top
LM117/217 LM317 1.2V TO 37V VOLTAGE REGULATOR OUTPUT VOLTAGE RANGE : 1.2 TO 37V OUTPUT CURRENT IN EXCESS OF 1.5A 0.1% LINE AND LOAD REGULATION FLOATING OPERATION FOR HIGH VOLTAGES COMPLETE SERIES OF PROTECTIONS
More informationUnderstanding the Terms and Definitions of LDO Voltage Regulators
Application Report SLVA79 - October 1999 Understanding the Terms and Definitions of ltage Regulators Bang S. Lee Mixed Signal Products ABSTRACT This report provides an understanding of the terms and definitions
More informationV DSS R DS(on) max Qg. 30V 3.2mΩ 36nC
PD - 96232 Applications l Optimized for UPS/Inverter Applications l High Frequency Synchronous Buck Converters for Computer Processor Power l High Frequency Isolated DC-DC Converters with Synchronous Rectification
More informationMM74C150 MM82C19 16-Line to 1-Line Multiplexer 3-STATE 16-Line to 1-Line Multiplexer
MM74C150 MM82C19 16-Line to 1-Line Multiplexer 3-STATE 16-Line to 1-Line Multiplexer General Description The MM74C150 and MM82C19 multiplex 16 digital lines to 1 output. A 4-bit address code determines
More informationPower Over Ethernet (PoE) Operation for the Series 2600-PWR Switches
11 Power Over Ethernet (PoE) Operation for the Series 2600-PWR Switches Contents Applicable Switch Models....................................... 11-2 Introduction..................................................
More informationDesign of an Auxiliary Power Distribution Network for an Electric Vehicle
Design of an Auxiliary Power Distribution Network for an Electric Vehicle William Chen, Simon Round and Richard Duke Department of Electrical & Computer Engineering University of Canterbury, Christchurch,
More informationApplication Note AN-1068 reva
Application Note AN-1068 reva Considerations for Designs Using Radiation-Hardened Solid State Relays By Alan Tasker Table of Contents Introduction Page Overview...1 The Contact...1 Actuation...1 The IR
More informationC Soldering Temperature, for 10 seconds 300 (1.6mm from case )
dvanced Process Technology Dynamic dv/dt Rating 75 C Operating Temperature Fast Switching Fully valanche Rated Lead-Free Description Fifth Generation HEXFETs from International Rectifier utilize advanced
More informationLM3940 1A Low Dropout Regulator for 5V to 3.3V Conversion
1A Low Dropout Regulator for 5V to 3.3V Conversion General Description The LM3940 is a 1A low dropout regulator designed to provide 3.3V from a 5V supply. The LM3940 is ideally suited for systems which
More informationIRF5305PbF. HEXFET Power MOSFET V DSS = -55V. R DS(on) = 0.06Ω I D = -31A
dvanced Process Technology Dynamic dv/dt Rating 75 C Operating Temperature Fast Switching PChannel Fully valanche Rated LeadFree Description Fifth Generation HEXFETs from International Rectifier utilize
More informationEthernet over Copper Transmission Extenders
Ethernet over Copper Transmission Extenders Ethernet Transmission over Existing Coaxial or Cat5 Cable CopperLine is an advanced and unique technology that extends Ethernet networks beyond the 100 meter
More information5W LED Lump Module Design with FT831B
5W LED Lump Module Design with FT831B 2009 Fremont Micro Devices ERP831BA1 - Page1 Index 1 INTRODUCTION... 3 2 MODULE SPECIFICATION... 3 2.1 Input Characteristics... 3 2.2 Output Characteristics... 3 2.3
More informationCable Discharge Event
Cable Discharge Event 1.0 Introduction The widespread use of electronic equipment in various environments exposes semiconductor devices to potentially destructive Electro Static Discharge (ESD). Semiconductor
More informationSMPS MOSFET. V DSS R DS (on) max I D
Applications l Switch Mode Power Supply (SMPS) l Uninterruptable Power Supply l High speed power switching SMPS MOSFET PD 93773A IRF820A HEXFET Power MOSFET V DSS R DS (on) max I D 500V 3.0Ω 2.5A Benefits
More information3Com WHITE PAPER. Power over Ethernet Overview
3Com Power over Ethernet Solutions WHITE PAPER CONTENTS What is Power over Ethernet?...1 IEEE 802.3af: The PoE Standard...1 Is Power over Ethernet Right For You?...1 The Benefits of Implementing Power
More informationDATA SHEET. TDA1518BQ 24 W BTL or 2 x 12 watt stereo car radio power amplifier INTEGRATED CIRCUITS
INTEGRATED CIRCUITS DATA SHEET File under Integrated Circuits, IC01 July 1994 GENERAL DESCRIPTION The is an integrated class-b output amplifier in a 13-lead single-in-line (SIL) plastic power package.
More informationGuidance for upgrading to GB4943.1-2011 (IEC 60950-1: 2005, MOD)
Guidance for upgrading to GB4943.1-2011 (IEC 60950-1: 2005, MOD) Note: This guidance document is a translation of official Chinese document which is issued by CQC (China Quality Certification Center) on
More informationPower supplies. EE328 Power Electronics Assoc. Prof. Dr. Mutlu BOZTEPE Ege University, Dept. of E&E
Power supplies EE328 Power Electronics Assoc. Prof. Dr. Mutlu BOZTEPE Ege University, Dept. of E&E EE328 POWER ELECTRONICS Outline of lecture Introduction to power supplies Modelling a power transformer
More informationTS34119 Low Power Audio Amplifier
SOP-8 DIP-8 Pin assignment: 1. CD 8. VO2 2. FC2 7. Gnd 3. FC1 6. Vcc 4. Vin 5. VO1 General Description The TS34119 is a low power audio amplifier, it integrated circuit intended (primarily) for telephone
More informationDiscontinued Product For Reference Only
Data Sheet 29319.12A 2962 DUAL PULSE-WIDTH MODULATED CURRENT CONTROL GROUND IN A SENSE A SINK A SOURCE A THS A V CC SOURCE B SINKB SENSEB IN B THS B 1 2 3 4 5 6 7 8 9 1 11 12 LOGIC LOGIC Dwg. No. D-11
More information7-41 POWER FACTOR CORRECTION
POWER FTOR CORRECTION INTRODUCTION Modern electronic equipment can create noise that will cause problems with other equipment on the same supply system. To reduce system disturbances it is therefore essential
More information