MC DC Servo Motor Controller/Driver

Transcription

1 MC333 DC Servo Motor Controller/Driver The MC333 is a monolithic DC servo motor controller providing all active functions necessary for a complete closed loop system. This device consists of an onchip op amp and window comparator with wide input commonmode range, drive and brake logic with direction memory, Power HSwitch driver capable of. A, independently programmable overcurrent monitor and shutdown delay, and overvoltage monitor. This part is ideally suited for almost any servo positioning application that requires sensing of temperature, pressure, light, magnetic flux, or any other means that can be converted to a voltage. Although this device is primarily intended for servo applications, it can be used as a switchmode motor controller. PDIP P SUFFIX CASE 4C MAKING DIAGAMS MC333P AWLYYWWG Features OnChip for Feedback Monitoring Window Detector with Deadband and Self Centering eference Input Drive/Brake Logic with Direction Memory. A Power HSwitch Programmable Detector Programmable Shutdown Delay Overvoltage Shutdown PbFree Packages are Available* SOW DW SUFFIX CASE 5G A = Assembly Location WL = Wafer Lot YY = Year WW = Work Week G = PbFree Package MC333DW AWLYYWWG PIN CONNECTIONS eference Input eference Input Filter Output Filter/Feedback Input GND Output Inverting Input Non Inverting Input Delay 2 5 eference Driver Output A GND 5 2 (Top View) Pins 4, 5, 2 and 3 are electrical ground and heat sink pins for IC. Driver Output B Input Filter *For additional information on our PbFree strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques eference Manual, SOLDEM/D. ODEING INFOMATION See detailed ordering and shipping information in the package dimensions section on page 2 of this data sheet. Semiconductor Components Industries, LLC, 2 June, 2 ev. Publication Order Number: MC333/D

2 MC333 Motor Feedback Position Over Voltage Monitor Power HSwitch 4 3 eference Position Window Detector Drive/ Brake Logic Direction Memory Programmable Over Current Detector & Latch 2 4, 5, 2, 3 5 C DLY OC This device contains active transistors. epresentative Block Diagram ODEING INFOMATION Device Package Shipping MC333DW SOIC 4 Units / ail MC333DWG SOIC (PbFree) MC333DW2 SOIC / Tape & eel MC333DW2G SOIC (PbFree) MC333P PDIP 25 Units / ail MC333PG PDIP (PbFree) For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and eel Packaging Specifications Brochure, BD/D. 2

3 MC333 MAXIMUM ATINGS ating Symbol Value Unit Power Supply Voltage 3 V Input Voltage ange Op Amp, Comparator, Current Limit (Pins, 2, 3,,,,, 5) Input Differential Voltage ange Op Amp, Comparator (Pins, 2, 3,,,, ) V I.3 to V V ID.3 to V Delay Pin Sink Current (Pin ) I DLY(sink) 2 ma Output Source Current (Op Amp) I source ma Drive Output Voltage ange (Note ) V DV.3 to ( V F ) V Drive Output Source Current (Note 2) I DV(source). A Drive Output Sink Current (Note 2) I DV(sink). A Brake Diode Forward Current (Note 2) I F. A Power Dissipation and Thermal Characteristics P Suffix, Dual In Line Case 4C Thermal esistance, JunctiontoAir Thermal esistance, JunctiontoCase (Pins 4, 5, 2, 3) DW Suffix, Dual In Line Case 5G Thermal esistance, JunctiontoAir Thermal esistance, JunctiontoCase (Pins 4, 5, 2, 3) JA JC JA JC 5 4 C/W Operating Junction Temperature T J 5 C Operating Ambient Temperature ange T A 4 to 5 C Storage Temperature ange T stg 5 to 5 C Electrostatic Discharge Sensitivity (ESD) Human Body Model (HBM) Machine Model (MM) Stresses exceeding Maximum atings may damage the device. Maximum atings are stress ratings only. Functional operation above the ecommended Operating Conditions is not implied. Extended exposure to stresses above the ecommended Operating Conditions may affect device reliability.. The upper voltage level is clamped by the forward drop, V F, of the brake diode. 2. These values are for continuous DC current. Maximum package power dissipation limits must be observed. ELECTICAL CHAACTEISTICS ( = 4 V, T A = 25 C, unless otherwise noted.) Characteristic Symbol Min Typ Max Unit EO AMP Input Offset Voltage ( 4 C T A 5 C), V Pin =. V, L = k V IO.5 mv Input Offset Current (V Pin =. V, L = k) I IO. na Input Bias Current (V Pin =. V, L = k) I IB. na Input CommonMode Voltage ange V IO = 2 mv, L = k ESD 2 2 V IC to (.2) V Slew ate, Open Loop (V ID =.5 V, C L = 5 pf) S.4 V/ s UnityGain Crossover Frequency f c 55 khz UnityGain Phase Margin φm 3 deg CommonMode ejection atio (V Pin =. V, L = k) CM 5 2 db Power Supply ejection atio =. to V, V Pin =. V, L = k PS db Output Source Current (V Pin = 2 V) I O. ma Output Sink Current (V Pin =. V) I O 25 A V Output Voltage Swing ( L = k to Ground) V OH 2.5 V OL 3..2 V V 3

4 MC333 ELECTICAL CHAACTEISTICS (continued) ( = 4 V, T A = 25 C, unless otherwise noted.) Characteristic Symbol Min Typ Max Unit WINDOW DETECTO Input Hysteresis Voltage (V V 4, V 2 V 3, Figure ) V H mv Input Dead Zone ange (V 2 V 4, Figure ) V IDZ mv Input Offset Voltage ( [V 2 V Pin 2 ] [V Pin 2 V 4 ] Figure ) V IO 25 mv Input Functional CommonMode ange (Note 3) Upper Threshold Lower Threshold eference Input Self Centering Voltage Pins and 2 Open V IH V IL (.5).24 V SC (/2 ) V V Window Detector Propagation Delay Comparator Input, Pin 3, to Drive Outputs V ID =.5 V, L(DV) = 3 t p(in/dv) 2. s OVECUENT MONITO eference esistor Voltage (Pin 5) OC V Delay Pin Source Current V DLY = V, OC = 2 k, I DV = ma Delay Pin Sink Current ( OC = 2 k, I DV = ma) V DLY = 5. V V DLY =.3 V V DLY = 4 V I DLY(source) 5.5. A I DLY(sink) Delay Pin Voltage, Low State (I DLY = ma) V OL(DLY).3.4 V Shutdown Threshold = 4 V =. V Shutdown Propagation Delay Delay Capacitor Input, Pin, to Drive Outputs, V ID =.5 V POWE HSWITCH DriveOutput Saturation ( 4 C T A 5 C, Note 4) HighState (I source = ma) LowState (I sink = ma) DriveOutput Voltage Switching Time (C L = 5 pf) ise Time Fall Time V th(oc) t p(dly/dv). s V OH(DV) ( 2) V OL(DV) (.5).2 Brake Diode Forward Voltage Drop (I F = 2 ma, Note 4) V F V TOTAL DEVICE Standby Supply Current I CC 4 25 ma Overvoltage Shutdown Threshold ( 4 C T A 5 C) V th(ov) V Overvoltage Shutdown Hysteresis (Device off to on ) V H(OV).3.. V Operating Voltage Lower Threshold ( 4 C T A 5 C).5. V 3. The upper or lower hysteresis will be lost when operating the Input, Pin 3, close to the respective rail. efer to Figure Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient temperature as possible. t r tf 2 2. ma V V ns 4

5 MC333 V IC, INPUT COMMONMODE ANGE (mv) V IO = 2 mv L = k 25 Vsat, OUTPUT SATUATION VOLTAGE (V) Sink Saturation L to T A = 25 C. GND GND k 3. k T A, AMBIENT TEMPEATUE ( C) Figure. Input CommonMode Voltage ange versus Temperature Source Saturation L to GND T A = 25 C I L, LOAD CUENT (± A) Figure 2. Output Saturation versus Load Current A VOL, OPENLOOP VOLTAGE GAIN (db) V FB, FEEDBACKINPUT VOLTAGE (V) 4 Phase 2 = 4 Phase V out =. V Margin L = k = 3 C L = 4 pf 35 T A = 25 C.. k k k. M f, FEQUENCY (Hz) Gain Figure 3. Open Loop Voltage Gain and Phase versus Frequency Upper Hysteresis Lower Hysteresis = 4 V Pin 2 =. V V 2 V 3 V V 4 T A, AMBIENT TEMPEATUE ( C) 45 φ, EXCESS PHASE (DEGEES) V sat, OUTPUT SATUATION VOLTAGE (V) V IC, INPUT COMMONMODE ANGE (V) Max. Pin 2 V IC so that Pin 3 can change state of drive outputs. GND T A, AMBIENT TEMPEATUE ( C) Figure 4. Window Detector eferenceinput CommonMode Voltage ange versus Temperature I L, LOAD CUENT (± ma) Source Saturation L to GND T A = 25 C 25. Sink Saturation L = T A = 25 C GND 2 4 Figure 5. Window Detector FeedbackInput Thresholds versus Temperature Figure. Output Driver Saturation versus Load Current 5

6 MC333 I F, FOWAD CUENT (ma) T A = 25 C I source, OUTPUT SOUCE CUENT (ma) = 4 V T A = 25 C V F, FOWAD VOLTAGE (V) Figure. Brake Diode Forward Current versus Forward Voltage OC, OVECUENT EFEENCE ESISTANCE (k ) Figure. Output Source CurrentLimit versus eference esistance I source, OUTPUT SOUCE CUENT (ma) OC = 5 k OC = 2 k OC = k T A, AMBIENT TEMPEATUE ( C) = 4 V 25 I DLY, DELAY PIN SOUCE CUENT (NOMALIZED) = 4 V T A, AMBIENT TEMPEATUE ( C) Figure. Output Source CurrentLimit versus Temperature Figure. Normalized Delay Pin Source Current versus Temperature V th(oc), OVECUENT DELAY THESHOLD VOLTAGE (NOMALIZED) VCC = 4 V T A, AMBIENT TEMPEATUE ( C) 25 I CC, SUPPLY CUENT (ma) Pins to Pins 2 to T A = 25 C. Minimum Operating 4. Voltage ange. Over Voltage Shutdown ange 24, SUPPLY VOLTAGE (V) 32 4 Figure. Normalized Delay Threshold Voltage versus Temperature Figure 2. Supply Current versus Supply Voltage

7 MC333 V th(ov), OVEVOLTAGE SHUTDOWN THESHOLD (NOMALIZED).2... Figure 3. Normalized Overvoltage Shutdown Threshold versus Temperature V th(ov), OVEVOLTAGE SHUTDOWN THESHOLD (NOMALIZED) T A, AMBIENT TEMPEATUE ( C) T A, AMBIENT TEMPEATUE ( C) Figure 4. Normalized Overvoltage Shutdown Hysteresis versus Temperature JA, THEMAL ESISTANCE JUNCTIONTOAI ( C/W) Printed circuit board heatsink example ÎÎÎ 2. oz L ÎÎ Copper ÎÎÎÎÎ JA L 3. mm Graphs represent symmetrical layout P D(max) for T A = C L, LENGTH OF COPPE (mm) P D, MAXIMUM POWE DISSIPATION (W) Figure 5. P Suffix (DIP) Thermal esistance and Maximum Power Dissipation versus P.C.B. Copper Length JA, THEMAL ESISTANCE JUNCTIONTOAI ( C/W) 2. P D(max) for T A = 5 C JA Graph represents symmetrical layout ÎÎÎÎ 2. oz. ÎÎÎ L ÎÎÎÎ Copper ÎÎÎ ÎÎÎÎ L ÎÎÎ 3. mm P D, MAXIMUM POWE DISSIPATION (W) L, LENGTH OF COPPE (mm) Figure. DW Suffix (SOPL) Thermal esistance and Maximum Power Dissipation versus P.C.B. Copper Length

8 MC333 OPEATING DESCIPTION The MC333 was designed to drive fractional horsepower DC motors and sense actuator position by voltage feedback. A typical servo application and representative internal block diagram are shown in Figure. The system operates by setting a voltage on the reference input of the Window Detector (Pin ) which appears on (Pin 2). A DC motor then drives a position sensor, usually a potentiometer driven by a gear box, in a corrective fashion so that a voltage proportional to position is present at Pin 3. The servo motor will continue to run until the voltage at Pin 3 falls within the dead zone, which is centered about the reference voltage. The Window Detector is composed of two comparators, A and B, each containing hysteresis. The reference input, common to both comparators, is prebiased at /2 for simple two position servo systems and can easily be overridden by an external voltage divider. The feedback voltage present at Pin 3 is connected to the center of two resistors that are driven by an equal magnitude current source and sink. This generates an offset voltage at the input of each comparator which is centered about Pin 3 that can float virtually from to ground. The sum of the upper and lower offset voltages is defined as the window detector input dead zone range. To increase system flexibility, an onchip is provided. It can be used to buffer and/or gainup the actuator position voltage which has the effect of narrowing the dead zone range. A PNP differential input stage is provided so that the input commonmode voltage range will include ground. The main design goal of the error amp output stage was to be able to drive the window detector input. It typically can source. ma and sink 25 A. Special design considerations must be made if it is to be used for other applications. The Power HSwitch provides a direct means for motor drive and braking with a maximum source, sink, and brake current of. A continuous. Maximum package power dissipation limits must be observed. efer to Figure 5 for thermal information. For greater drive current requirements, a method for buffering that maintains all the system features is shown in Figure 3. The Monitor is designed to distinguish between motor startup or locked rotor conditions that can occur when the actuator has reached its travel limit. A fraction of the Power HSwitch source current is internally fed into one of the two inverting inputs of the current comparator, while the noninverting input is driven by a programmable current reference. This reference level is controlled by the resistance value selected for OC, and must be greater than the required motor runcurrent with its mechanical load over temperature; refer to Figure. During an overcurrent condition, the comparator will turn off and allow the current source to charge the delay capacitor, C DLY. When C DLY charges to a level of.5 V, the set input of the overcurrent latch will go high, disabling the drive and brake functions of the Power HSwitch. The programmable time delay is determined by the capacitance valueselected for C DLY. t DLY V ref C DLY I DLY(source).5 C DLY 5.5 μa.3 C DLY in μf This system allows the Power HSwitch to supply motor startup current for a predetermined amount of time. If the rotor is locked, the system will timeout and shutdown. This feature eliminates the need for servo endoftravel or limit switches. Care must be taken so as not to select too large of a capacitance value for C DLY. An overcurrent condition for an excessively long timeout period can cause the integrated circuit to overheat and eventually fail. Again, the maximum package power dissipation limits must be observed. The overcurrent latch is reset upon powerup or by readjusting V Pin 2 as to cause V Pin 3 to enter or pass through the dead zone. This can be achieved by requesting the motor to reverse direction. An Overvoltage Monitor circuit provides protection for the integrated circuit and motor by disabling the Power HSwitch functions if should exceed V. esumption of normal operation will commence when falls below.4 V. A timing diagram that depicts the operation of the Drive/Brake Logic section is shown in Figure. The waveforms grouped in [] show a reference voltage that was preset, appearing on Pin 2, which corresponds to the desired actuator position. The true actuator position is represented by the voltage on Pin 3. The points V through V 4 represent the input voltage thresholds of comparators A and B that cause a change in their respective output state. They are defined as follows: V = Comparator B turnoff threshold V 2 = Comparator A turnon threshold V 3 = Comparator A turnoff threshold V 4 = Comparator B turnon threshold V V 4 = Comparator B input hysteresis voltage V 2 V 3 = Comparator A input hysteresis voltage V 2 V 4 = Window detector input dead zone range (V 2 V Pin2 ) (V Pin2 V 4 ) = Window detector input voltage

9 MC333 It must be remembered that points V through V 4 always try to follow and center about the reference voltage setting if it is within the input commonmode voltage range of Pin 3; Figures 4 and 5. Initially consider that the feedback input voltage level is somewhere on the dashed line between V 2 and V 4 in []. This is within the dead zone range as defined above and the motor will be off. Now if the reference voltage is raised so that V Pin 3 is less than V 4, comparator B will turnon [3] enabling Q Drive, causing Drive Output A to sink and B to source motor current []. The actuator will move in Direction B until V Pin 3 becomes greater than V. Comparator B will turnoff, activating the brake enable [4] and Q Brake [] causing Drive Output A to go high and B to go into a high impedance state. The inertia of the mechanical system will drive the motor as a generator creating a positive voltage on Pin with respect to Pin 4. The servo system can be stopped quickly, so as not to overshoot through the dead zone range, by braking. This is accomplished by shorting the motor/generator terminals together. Brake current will flow into the diode at Drive Output B, through the internal rail, and out the emitter of the sourcing transistor at Drive Output A. The end of the solid line and beginning of the dashed for V Pin 3 [] indicates the possible resting position of the actuator after braking. Gearbox and Linkage Motor Inverting Input Output Output Filter/ Feedback Input Non Inverting Input 35 A 3. k 3. k 35 A Input Filter 3.3 ma B A V ef. Overvoltage Monitor Drive Brake Logic Direction Latch Q Drive S Q Drive Brake Enable Q Q Q Brake Q Brake Drive Output B Power HSwitch Drive Output A 4 eference Input eference Input Filter 2 k k Window Detector 4, 5,2,3 GND Over Current Latch Q Q S.5 V ef. 5.5 A Delay 5 k C DLY 5 OC eference Monitor Figure. epresentative Block Diagram and Typical Servo Application

10 MC333 If V Pin 3 should continue to rise and become greater than V 2, the actuator will have over shot the dead zone range and cause the motor to run in Direction A until V Pin 3 is equal to V 3. The Drive/Brake behavior for Direction A is identical to that of B. Overshooting the dead zone range in both directions can cause the servo system to continuously hunt or oscillate. Notice that the last motor rundirection is stored in the direction latch. This information is needed to determine whether Q or Q Brake is to be enabled when V Pin 3 enters the dead zone range. The dashed lines in [,] indicate the resulting waveforms of an overcurrent condition that has exceeded the programmed time delay. Notice that both Drive Outputs go into a high impedance state until V Pin 2 is readjusted so that V Pin 3 enters or crosses through the dead zone [, 4]. The inputs of the and Window Detector can be susceptible to the noise created by the brushes of the DC motor and cause the servo to hunt. Therefore, each of these inputs are provided with an internal series resistor and are pinned out for an external bypass capacitor. It has been found that placing a capacitor with short leads directly across the brushes will significantly reduce noise problems. Good quality F bypass capacitors in the range of. to. F may be required. Many of the more economical motors will generate significant levels of F energy over a spectrum that extends from DC to beyond 2 MHz. The capacitance value and method of noise filtering must be determined on a system by system basis. Thus far, the operating description has been limited to servo systems in which the motor mechanically drives a potentiometer for position sensing. Figures, 2, 2, and 3 show examples that use light, magnetic flux, temperature, and pressure as a means to drive the feedback element. Figures 2, 22 and 23 are examples of two position, open loop servo systems. In these systems, the motor runs the actuator to each end of its travel limit where the Monitor detects a locked rotor condition and shuts down the drive. Figures 32 and 33 show two possible methods of using the MC333 as a switching motor controller. In each example a fixed reference voltage is applied to Pin 2. This causes V pin 3 to be less than V 4 and Drive Output A, Pin 4, to be in a low state saturating the TIP42 transistor. In Figure 32, the motor drives a tachometer that generates an ac voltage proportional to PM. This voltage is rectified, filtered, divided down by the speed set potentiometer, and applied to Pin. The motor will accelerate until V Pin 3 is equal to V at which time Pin 4 will go to a high state and terminate the motor drive. The motor will now coast until V Pin 3 is less than V 4 where upon drive is then reapplied. The system operation of Figure 3 is identical to that of Figure 32 except the signal at Pin 3 is an amplified average of the motors drive and back EMF voltages. Both systems exhibit excellent control of PM with variations of ; however, Figure 32 has somewhat better torque characteristics at low PM.

11 MC333 Comparator A Non Inverting Input Threshold V 2 V 3 eference Input Voltage (Desired Actuator Position) [] Window Detector Comparator B Inverting Input Threshold Feedback Input (True Actuator Position) V V 4 Comparator A Output [2] Comparator B Output [3] Brake Enable [4] Direction Latch Q Output Direction Latch Q Output [5] Drive/Brake Logic Q Brake [] Q Brake Latch eset Input [] Source Power HSwitch Drive Output A High Z Sink Source [] Drive Output B High Z Sink Monitor C DLY Direction B Feedback Input less than V Dead Zone Feedback Input between V & V 2.5 V Direction A Feedback Input greater than V 2 Dead Zone Feedback Input between V 3 & V 4 [] Direction B Feedback Input less than V 4 Figure. Timing Diagram

12 MC333 5 Offset 2 3 Servo Driven Wheel, 2 Cadium Sulphide Photocell, 2 5M Dark, 3. k light resistance 3 3 k, repositions servo during 3 darkness for next sunrise. Linear Hall Effect Sensor B TL3C 3. k k Gain Zero Flux Centering Centering Adjust k Typical sensitivity with gain set at 3. k is.5 mv/gauss. Servo motor controls magnetic field about sensor. Figure. Solar Tracking Servo System Figure 2. Magnetic Sensing Servo System 4 MD35 Latch Drive A MD35 Latch Drive B 4 3 k k /2 Input Activates Drive A Activates Drive B MPS A2 Monitor (not shown) shuts down servo when end stop is reached. Monitor (not shown) shuts down servo when end stop is reached. Figure 2. Infrared Latched Two Position Servo System Figure 22. Digital Two Position Servo System k k k 3 k V in f o C C 2 2 C C 2 2 =. M C = pf C 2 = pf 22 C f.2 C 2 k Q C C2 2 Figure Hz SquareWave Servo Agitator Figure 24. Second Order LowPass Active Filter 2

13 MC333 V in 2C /2 C C f notch 2 C For Hz = 53. k, C =.5 V A V B V Pin V A V B Figure 25. Notch Filter Figure 2. Differential Input Amplifier Cabin Temperature Sensor 2 T 3 4 V ef V B 2 V Pin Set Temperature V A 3 4 V A V B V ef 4 2 3, 2 4, In this application the servo motor drives the heat/air conditioner modulator door in a duct system. V Pin 4 3 (V A V B ) Figure 2. Temperature Sensing Servo System Figure 2. Bridge Amplifier Q O.C. Q S.5 V VF(D ) VF(D 2 ) VBE(ON) E IMOTO IDV(max) E Motor E D D 2 D D 2 C DLY 4. k 5 OC LM3 V in V ef From Drive Outputs A B 4 A direction change signal is required at Pins 2 or 3 to reset the overcurrent latch. This circuit maintains the brake and overcurrent features of the MC333. Set OC to 5 k for I DV(max).5 A. Figure 2. emote Latched Shutdown Figure 3. Power HSwitch Buffer 3

14 MC333 = 2 V Gas Flow Zero Pressure Offset Adjust 2. k.2 k 2 k LM324 Quad Op Amp. k. k. k Pressure Port 5. k 5. k 2 2 S MPXDP Silicon Pressure Sensor. k Gain 2.4 k 4.2 k S Vacuum Port 2. V for Zero Pressure Differential. k. V for kpa (4.5 PSI) Pressure Differential. = 2 V Motor 4 B 3 A Q DI. S Q 2 V Pressure Differential eference Set 5. k 5. k. k. 2 Q O.C. Q S 4, 5,2, k Figure 3. Adjustable Pressure Differential egulator 4

15 MC333 = 2 V TACH Speed Set N4 k TIP42. k MPS A Motor MZ23 3 Q DI. SQ eset 2 V 4. k N53 2 Q O.C. Q S 4, 5,2,3 5 3 k. k Figure 32. Switching Motor Controller With Buffered Output and Tach Feedback = 2 V k Speed Set 2XN4 k. k TIP42. k MPS A Motor 3 Q DI. SQ eset 2 V N53 2 Q O.C. Q S 4, 5, 2, 3. k 5 3 k Figure 33. Switching Motor Controller With Buffered Output and Back EMF Sensing 5

16 MC333 PACKAGE DIMENSIONS PDIP P SUFFIX CASE 4C4 ISSUE D A A F B N B C L M J X B NOTES:. DIMENSIONING AND TOLEANCING PE ASME Y4.5M, CONTOLLING DIMENSION: INCH. 3. DIMENSION L TO CENTE OF LEADS WHEN FOMED PAALLEL. 4. DIMENSION B DOES NOT INCLUDE MOLD FLASH. INCHES MILLIMETES DIM MIN MAX MIN MAX A B C D E.5 BSC.2 BSC F G. BSC 2.54 BSC J K L.3 BSC.2 BSC M N K.5 (.3) M T E G T X D.5 (.3) M T A SEATING PLANE SO WB CASE 5G3 ISSUE C X H.25 M B M D A E h X 45 NOTES:. DIMENSIONS AE IN MILLIMETES. 2. INTEPET DIMENSIONS AND TOLEANCES PE ASME Y4.5M, DIMENSIONS D AND E DO NOT INLCUDE MOLD POTUSION. 4. MAXIMUM MOLD POTUSION.5 PE SIDE. 5. DIMENSION B DOES NOT INCLUDE DAMBA POTUSION. ALLOWABLE DAMBA POTUSION SHALL BE.3 TOTAL IN EXCESS OF THE B DIMENSION AT MAXIMUM MATEIAL CONDITION. X B.25 M T A S B S A B MILLIMETES DIM MIN MAX A A..25 B.35.4 C D.5.45 E.4. e.2 BSC H.5.55 h.25.5 L.5. q 4X e A T SEATING PLANE C L

17 MC333 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 ODEING INFOMATION LITEATUE FULFILLMENT: Literature Distribution Center for ON Semiconductor P.O. Box 53, Denver, Colorado 2 USA Phone: or 3443 Toll Free USA/Canada Fax: 3352 or 3443 Toll Free USA/Canada orderlit@onsemi.com N. American Technical Support: 2255 Toll Free USA/Canada Europe, Middle East and Africa Technical Support: Phone: Japan Customer Focus Center Phone: ON Semiconductor Website: Order Literature: For additional information, please contact your local Sales epresentative MC333/D