MC34063A, MC33063A, NCV33063A. 1.5 A, Step Up/Down/ Inverting Switching Regulators

Transcription

1 MC3403A, MC3303A, NCV3303A. A, StepUp/Down/ Inverting Switching Regulators The MC3403A Series is a monolithic control circuit containing the primary functions required for DCtoDC converters. These devices consist of an internal temperature compensated reference, comparator, controlled duty cycle oscillator with an active current limit circuit, driver and high current output switch. This series was specifically designed to be incorporated in StepDown and StepUp and VoltageInverting applications with a minimum number of external components. Refer to Application Notes AN90A/D and AN94/D for additional design information. Features Operation from 3.0 V to 40 V Input Low Standby Current Current Limiting Output Switch Current to. A Output Voltage Adjustable Frequency Operation to 00 khz Precision % Reference PbFree Packages are Available SOIC D SUFFIX CASE PDIP P, P SUFFIX CASE MARKING DIAGRAMS 3x03 ALYWA 3x03AP AWL YYWWG 3303AVP AWL YYWWG Drive Collector I pk Sense V CC Comparator Inverting Input I pk Oscillator S Q R C T Comparator 00 (Bottom View) Figure. Representative Schematic Diagram Q. V Reference Regulator Q This device contains active transistors. 3 Switch Collector Switch Emitter Timing Capacitor 4 GND x = 3 or 4 A = Assembly Location L, WL = Wafer Lot Y, YY = Year W, WW = Work Week G or = PbFree Package Switch Collector Switch Emitter Timing Capacitor GND PIN CONNECTIONS 3 4 (Top View) Driver Collector I pk Sense V CC Comparator Inverting Input ORDERING INFORMATION See detailed ordering and shipping information in the package dimensions section on page of this data sheet. Semiconductor Components Industries, LLC, 00 December, 00 Rev. Publication Order Number: MC3403A/D

2 MC3403A, MC3303A, NCV3303A MAXIMUM RATINGS Rating Symbol Value Unit Power Supply Voltage V CC 40 Vdc Comparator Input Voltage Range V IR 0.3 to 40 Vdc Switch Collector Voltage V C(switch) 40 Vdc Switch Emitter Voltage (V Pin = 40 V) V E(switch) 40 Vdc Switch Collector to Emitter Voltage V CE(switch) 40 Vdc Driver Collector Voltage V C(driver) 40 Vdc Driver Collector Current (Note ) I C(driver) 00 ma Switch Current I SW. A Power Dissipation and Thermal Characteristics Plastic Package, P, P Suffix T A = C P D. W Thermal Resistance R JA 00 C/W SOIC Package, D Suffix T A = C P D mw Thermal Resistance R JA 0 C/W Operating Junction Temperature T J 0 C Operating Ambient Temperature Range T A C MC3403A 0 to 0 MC3303AV, NCV3303A 40 to MC3303A 40 to Storage Temperature Range T stg to 0 C Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied, damage may occur and reliability may be affected.. Maximum package power dissipation limits must be observed.. This device series contains ESD protection and exceeds the following tests: Human Body Model 4000 V per MILSTD3, Method 30. Machine Model Method 400 V. 3. NCV prefix is for automotive and other applications requiring site and change control.

3 MC3403A, MC3303A, NCV3303A ELECTRICAL CHARACTERISTICS (V CC =.0 V, T A = T low to T high [Note 4], unless otherwise specified.) Characteristics Symbol Min Typ Max Unit OSCILLATOR Frequency (V Pin = 0 V, C T =.0 nf, T A = C) f osc khz Charge Current (V CC =.0 V to 40 V, T A = C) I chg A Discharge Current (V CC =.0 V to 40 V, T A = C) I dischg A Discharge to Charge Current Ratio (Pin to V CC, T A = C) I dischg /I chg... Current Limit Sense Voltage (I chg = I dischg, T A = C) V ipk(sense) mv OUTPUT SWITCH (Note ) Saturation Voltage, Darlington Connection (I SW =.0 A, Pins, connected) Saturation Voltage (Note ) (I SW =.0 A, R Pin = to V CC, Forced 0) V CE(sat).0.3 V V CE(sat) V DC Current Gain (I SW =.0 A, V CE =.0 V, T A = C) h FE 0 Collector OffState Current (V CE = 40 V) I C(off) A COMPARATOR Threshold Voltage T A = C T A = T low to T high Threshold Voltage Line Regulation (V CC = 3.0 V to 40 V) MC3303A, MC3403A MC3303AV, NCV3303A V th.. Reg line Input Bias Current ( = 0 V) I IB na TOTAL DEVICE Supply Current (V CC =.0 V to 40 V, C T =.0 nf, Pin = V CC, V Pin > V th, Pin = GND, remaining pins open) V mv I CC 4.0 ma 4. T low = 0 C for MC3403A, 40 C for MC3303A, AV, NCV3303A T high = 0 C for MC3403A, C for MC3303A, C for MC3303AV, NCV3303A. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient temperature as possible.. If the output switch is driven into hard saturation (nondarlington configuration) at low switch currents ( 300 ma) and high driver currents ( 30 ma), it may take up to.0 s for it to come out of saturation. This condition will shorten the off time at frequencies 30 khz, and is magnified at high temperatures. This condition does not occur with a Darlington configuration, since the output switch cannot saturate. If a nondarlington configuration is used, the following output drive condition is recommended: IC output Forced of output switch : I C driver.0 ma * 0 * The 00 resistor in the emitter of the driver device requires about.0 ma before the output switch conducts. 3

4 I t MC3403A, MC3303A, NCV3303A, OUTPUT SWITCH ON-OFF TIME ( s) onoff μ V CC =.0 V Pin = V CC Pin = GND T A = C C T, OSCILLATOR TIMING CAPACITOR (nf) t on OSC, OSCILLATOR VOLTAGE (V) V V CC =.0 V Pin = V CC Pin = GND Pins,, = Open C T =.0 nf T A = C 0 s/div 00 mv/div Figure. Output Switch OnOff Time versus Oscillator Timing Capacitor Figure 3. Timing Capacitor Waveform CE(sat), SATURATION VOLTAGE (V) V V CC =.0 V. Pins,, = V CC Pins 3, = GND. T A = C (See Note ) I E, EMITTER CURRENT (A) CE(sat), SATURATION VOLTAGE (V) V V CC =.0 V Pin = V CC Pins, 3, = GND T A = C (See Note ) Darlington Connection Forced = I C, COLLECTOR CURRENT(A) Figure 4. Emitter Follower Configuration Output Saturation Voltage versus Emitter Current Figure. Common Emitter Configuration Output Switch Saturation Voltage versus Collector Current IPK(sense), CURRENT LIMIT SENSE VOLTAGE (V) V V CC =.0 V I chg = I dischg T A, AMBIENT TEMPERATURE ( C) Figure. Current Limit Sense Voltage versus Temperature CC, SUPPLY CURRENT (ma) C T =.0 nf Pin = V CC Pin = GND V CC, SUPPLY VOLTAGE (V) Figure. Standby Supply Current versus Supply Voltage. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient temperature as possible. 4

5 MC3403A, MC3303A, NCV3303A 0 H L 0 S Q Q R Q N9 V V CC I pk OSC Comp. C T. V Ref Reg 3 C T 00 pf 4 R. k R 4 k.0 H V/ ma 330 C O 00 Optional Filter Test Conditions Results Line Regulation =.0 V to V, I O = ma 30 mv = ±0.0% Load Regulation = V, I O = ma to ma 0 mv = ±0.0% Output Ripple = V, I O = ma 400 mvpp Efficiency = V, I O = ma.% Output Ripple With Optional Filter = V, I O = ma 40 mvpp Figure. StepUp Converter

6 MC3403A, MC3303A, NCV3303A R R 0 for constant Figure 9. External Current Boost Connections for I C Peak Greater than. A 9a. External NPN Switch 9b. External NPN Saturated Switch (See Note ). If the output switch is driven into hard saturation (nondarlington configuration) at low switch currents ( 300 ma) and high driver currents ( 30 ma), it may take up to.0 s to come out of saturation. This condition will shorten the off time at frequencies 30 khz, and is magnified at high temperatures. This condition does not occur with a Darlington configuration, since the output switch cannot saturate. If a nondarlington configuration is used, the following output drive condition is recommended.

7 MC3403A, MC3303A, NCV3303A S R Q Q Q 0.33 V 00 V CC I pk OSC Comp. C T. V Ref Reg N9 3 C L T 4 40 pf 0 H R. k R 3. k 40 C O.0 V/00 ma.0 H 00 Optional Filter Test Conditions Results Line Regulation = V to V, I O = 00 ma mv = ±0.% Load Regulation = V, I O = 0 ma to 00 ma 3.0 mv = ±0.03% Output Ripple = V, I O = 00 ma 0 mvpp Short Circuit Current = V, R L = 0.. A Efficiency = V, I O = 00 ma 3.% Output Ripple With Optional Filter = V, I O = 00 ma 40 mvpp Figure 0. StepDown Converter V Figure. External Current Boost Connections for I C Peak Greater than. A a. External NPN Switch b. External PNP Saturated Switch

8 MC3403A, MC3303A, NCV3303A S Q Q R Q V to.0 V 00 V CC I pk OSC Comp. C T. V Ref Reg 3 L H 00 pf N9 4 R. k R f C O V/00 ma.0 H 00 Optional Filter Test Conditions Results Line Regulation = 4. V to.0 V, I O = 00 ma 3.0 mv = ±0.0% Load Regulation =.0 V, I O = 0 ma to 00 ma 0.0 V = ±0.09% Output Ripple =.0 V, I O = 00 ma 00 mvpp Short Circuit Current =.0 V, R L = ma Efficiency =.0 V, I O = 00 ma.% Output Ripple With Optional Filter =.0 V, I O = 00 ma 0 mvpp Figure. Voltage Inverting Converter Figure 3. External Current Boost Connections for I C Peak Greater than. A 3a. External NPN Switch 3b. External PNP Saturated Switch

9 MC3403A, MC3303A, NCV3303A.4.00 (Top view, copper foil as seen through the board from the component side) MC3403A MC3403A MC3403A (Top View, Component Side) *Optional Filter. Figure 4. Printed Circuit Board and Component Layout (Circuits of Figures, 0, ) INDUCTOR DATA Converter Inductance ( H) Turns/Wire StepUp 0 3 Turns of # AWG StepDown 0 4 Turns of # AWG VoltageInverting Turns of # AWG All inductors are wound on Magnetics Inc. toroidal core. 9

10 MC3403A, MC3303A, NCV3303A Calculation StepUp StepDown VoltageInverting t on / V V F in(min) V (min) sat V F (min) V sat V F V sat (t on ) f f f t on t on t on t on t on t on t on (t on ) (t on ) (t on ) C T 4.0 x 0 t on 4.0 x 0 t on 4.0 x 0 t on I pk(switch) I out(max) t on I out(max) I out(max) t on 0.3/I pk(switch) 0.3/I pk(switch) 0.3/I pk(switch) L (min) ((min) V sat ) I pk(switch) t on(max) ((min) V sat ) I pk(switch) t on(max) ((min) V sat ) I pk(switch) t on(max) C O 9 I out t on I (t pk(switch) on t ) off 9 V ripple(pp) V ripple(pp) I out t on V ripple(pp) V sat = Saturation voltage of the output switch. V F = Forward voltage drop of the output rectifier. The following power supply characteristics must be chosen: Nominal input voltage. Desired output voltage, I out Desired output current.. R R f min Minimum desired output switching frequency at the selected values of and I O. V ripple(pp) Desired peaktopeak output ripple voltage. In practice, the calculated capacitor value will need to be increased due to its equivalent series resistance and board layout. The ripple voltage should be kept to a low value since it will directly affect the line and load regulation. NOTE: For further information refer to Application Note AN90A/D and AN94/D. Figure. Design Formula Table 0

11 MC3403A, MC3303A, NCV3303A ORDERING INFORMATION Device Package Shipping MC3303AD SOIC 9 Units / Rail MC3303ADG SOIC 9 Units / Rail MC3303ADR SOIC 00 Units / Tape & Reel MC3303ADRG SOIC 00 Units / Tape & Reel MC3303AP PDIP 0 Units / Rail MC3303APG PDIP 0 Units / Rail MC3303AVD SOIC 9 Units / Rail MC3303AVDG MC3303AVDR MC3303AVDRG NCV3303AVDR* NCV3303AVDRG* SOIC SOIC SOIC SOIC SOIC 9 Units / Rail 00 Units / Tape & Reel MC3303AVP PDIP 0 Units / Rail MC3303AVPG PDIP 0 Units / Rail MC3403AD SOIC 9 Units / Rail MC3403ADG SOIC 9 Units / Rail MC3403ADR SOIC 00 Units / Tape & Reel MC3403ADRG SOIC 00 Units / Tape & Reel MC3403AP PDIP 0 Units / Rail MC3403APG PDIP 0 Units / Rail For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specification Brochure, BRD0/D. *NCV3303A: T low = 40 C, T high = C. Guaranteed by design. NCV prefix is for automotive and other applications requiring site and change control.

12 MC3403A, MC3303A, NCV3303A PACKAGE DIMENSIONS SOIC NB D SUFFIX CASE 0 ISSUE AG X B Y Z H G A D 4 S C 0. (0.00) M Z Y S X S 0. (0.00) M SEATING PLANE Y 0.0 (0.004) M N X 4 M K J NOTES:. DIMENSIONING AND TOLERANCING PER ANSI Y4.M, 9.. CONTROLLING DIMENSION: MILLIMETER. 3. DIMENSION A AND B DO NOT INCLUDE MOLD PROTRUSION. 4. MAXIMUM MOLD PROTRUSION 0. (0.00) PER SIDE.. DIMENSION D DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0. (0.00) TOTAL IN EXCESS OF THE D DIMENSION AT MAXIMUM MATERIAL CONDITION.. 0 THRU 0 ARE OBSOLETE. NEW STANDARD IS 0. MILLIMETERS INCHES DIM MIN MAX MIN MAX A B C D G. BSC 0.00 BSC H J K M 0 0 N S SOLDERING FOOTPRINT* SCALE : mm inches *For additional information on our PbFree strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D.

13 MC3403A, MC3303A, NCV3303A PACKAGE DIMENSIONS PDIP P, P SUFFIX CASE 0 ISSUE L B NOTES:. DIMENSION L TO CENTER OF LEAD WHEN FORMED PARALLEL.. PACKAGE CONTOUR OPTIONAL (ROUND OR SQUARE CORNERS). 3. DIMENSIONING AND TOLERANCING PER ANSI Y4.M, 9. NOTE T SEATING PLANE H 4 F A C N D K G 0.3 (0.00) M T A M B M L J M MILLIMETERS INCHES DIM MIN MAX MIN MAX A B C D F G.4 BSC 0.00 BSC H J K L. BSC BSC M 0 0 N SENSEFET is a trademark of Semiconductor Components Industries, LLC. ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. Typical parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including Typicals must be validated for each customer application by customer s technical experts. SCILLC does not convey any license under its patent rights nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner. PUBLICATION ORDERING INFORMATION LITERATURE FULFILLMENT: Literature Distribution Center for ON Semiconductor P.O. Box 3, Phoenix, Arizona 03 USA Phone: 4090 or Toll Free USA/Canada Fax: or Toll Free USA/Canada orderlit@onsemi.com N. American Technical Support: 009 Toll Free USA/Canada Japan: ON Semiconductor, Japan Customer Focus Center 9 Kamimeguro, Meguroku, Tokyo, Japan 300 Phone: ON Semiconductor Website: Order Literature: For additional information, please contact your local Sales Representative. MC3403A/D