Dimensions in mm Max Max. 4.5 Max. 5.5 Max. 7.5 Max. 4 VCC. S/C Detect Off Time Adjustor. Detect. Circuit. VG Monitor 5 VO.

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1 M7AL- Powerex, Inc., Hillis Street, Youngwood, Pennsylvania 97- (7) 9-77 Gate Driver Outline Drawing 9. Max. Block Diagram Signal Input 3 Opto-Coupler 7. Max.. 3 = 33. Interface Latch Timer & Reset Circuit Gate Shutdown Circuit. Max.. Max.. Max. Detect Circuit Dimensions in mm VCC VO S/C Detect Off Time Adjustor VG Monitor Fault Output VEE. Max. 7. Max. Hybrid Integrated Circuit For Driving IGBT Modules Description: M7AL- is a hybrid integrated circuit designed for driving Powerex V and V F-Series IGBT Modules. This device operates as an isolation amplifier for these modules and provides the required electrical isolation between the input and output with an optocoupler. Short circuit protection is provided by a built-in gate voltage detector that monitors the F-Series IGBT s internal circuit. A fault signal is provided if the short circuit protection is activitated. Features: Built-in Short Circuit Protection with Timer and Reset Functions Adjustable Blanking Time Low Voltage of V EE (-3V) Electrical Isolation Between Input and Output with Optocouplers (V iso = V RMS for min.) Application: To drive IGBT modules for inverter, AC Servo systems, etc. Recommended Modules: Powerex V and V F-Series IGBT Modules

2 Powerex, Inc., Hillis Street, Youngwood, Pennsylvania 97- (7) 9-77 M7AL- Absolute Maximum Ratings, T a = C unless otherwise specified Item Symbol Test Conditions Limit Units Supply Voltage V CC DC Volts V EE DC - Volts Input Voltage V I Applied between: 3 - ~ 7 Volts Output Voltage V O Applied at the Output Voltage H V CC Volts Output Current I OHP Pulse Width µs, f khz - Amperes I OLP Pulse Width µs, f khz Amperes Isolation Voltage V RMS Sinewave Voltage Hz, min. Volts Case Temperature T c C Operating Temperature T opg No Condensation Permitted - ~ C Storage Temperature t stg * - ~ C Fault Output Current I FO Applied pin ma Input Voltage V R Applied pin V CC Volts * Differs from H/C conditions Electrical Characteristics, T a = C,, V EE = -V, = Ω unless otherwise specified Characteristics Symbol Test Conditions Min. Typ. Max. Units Supply Voltage V CC Volts V EE Recommended Range Volts Pull-up Voltage on Input Side V IN.7.. Volts H Input Current I IH Recommended Range. 9 ma Switching Frequency f Recommended Range** khz Gate Resistor Recommended Range. Ω H Input Current I IH V IN = V ma H Output Voltage V OH 3 Volts L Output Voltage V OL Volts L-H Propagation Time t PLH.. µs L-H Rise Time t r I IH = ma.. µs H-L Propagation Time t PHL..3 µs H-L Fall Time t f.. µs Timer t timer Between Start and Cancel.. ms (Under Input Sign L ) Fault Output Current I FO Applied pin, R = 3.9kΩ. ma Controlled Time Detect Short Circuit t trip Pin :.V, Pin : Open. µs Controlled Time Detect Short Circuit *** t trip Pin :.V,. µs Pin : pf (Connective Capacitance) Over-current Detect Voltage V SC Difference Between 3. Volts V CC and Gate Voltage of IGBT **Please refer to the Maximum Limit of Switching Frequency curves ***Length of wiring of capacitor controlled time detect short circuit is within cm from and pin coming and going.

3 Powerex, Inc., Hillis Street, Youngwood, Pennsylvania 97- (7) 9-77 M7AL- PROPAGATION DELAY TIME, L-H, t PLH, (µs) PROPAGATION DELAY TIME, H-L, t PHL, (µs) t PLH, t PHL VS. T a CHARACTERISTICS V EE = -V =. Ω V IN = V Load: CMDU-F t PHL t PLH PROPAGATION DELAY TIME, L-H, t PLH, (µs) PROPAGATION DELAY TIME, H-L, t PHL, (µs) t PLH, t PHL VS. V I CHARACTERISTICS V EE = -V =. Ω T a = C Load: CMDU-F t PHL t PLH OVERCURRENT DETECTION CONTROLLED TIME, t trip, (µs) t trip VS. C trip CHARACTERISTICS V EE = -V T a = C Pin :.V POWER DISSIPATION, P D, (W) MAXIMUM LIMIT SWITCHING FREQUENCY, f, (khz). - AMBIENT TEMPERATURE, T a, ( C) POWER DISSIPATION VS. AMBIENT TEMPERATURE (MAXIMUM RATING) 3 AMBIENT TEMPERATURE, T a, ( C) MAXIMUM LIMIT OF SWITCHING FREQUENCY V EE = -V C C CM7TU-F CMTU-F CMTU-F CMTU-F CM3DU-F CMDU-F CMHU-F CMTU-F CM7TU-F CMTU-F CMDU-F CMDU-F CM3DU-F CMDU-F CMHU-F DISSIPATION CURRENT, (ma) INPUT SIGNAL VOLTAGE, V I, (V) DISSIPATION CURRENT VS. SUPPLY VOLTAGE (APPLIED BETWEEN: ) INPUT SIGNAL L T a = C 3 SUPPLY VOLTAGE, V CC, (V) (APPLIED BETWEEN ) MAXIMUM LIMIT OF SWITCHING FREQUENCY, f, (khz) 3 CONNECTIVE CAPACITANCE, C trip, (pf) (Pin: ) V EE = -V C C MAXIMUM LIMIT OF SWITCHING FREQUENCY CM7TU-F CMTU-F CMTU-F CMTU-F CM3DU-F CMDU-F CMHU-F CMTU-F CM7TU-F CMTU-F CMDU-F CMDU-F CM3DU-F CMDU-F CMHU-F 3

4 Powerex, Inc., Hillis Street, Youngwood, Pennsylvania 97- (7) 9-77 M7AL- Operation of Protection Circuit. During a short circuit, high current causes the F-Series IGBT module s built in to activate and pull the gate voltage down. This reduction of gate voltage is detected by pin of the M7AL-. If the gate voltage remains more than 3 volts below V CC for more than t trip, then a soft shutdown and fault output signal are initiated by the M7AL-.. When a short circuit is detected the M7AL- output will remain latched in the low (off) state for t timer, which is typically.ms. After t timer has expired an off state input command of at least µs will unlatch the output and normal operation will resume. 3. The t trip time can be extended by connecting external capacitance between pin and pin. Application Circuit Example V IN M7AL- 3 TTL, etc. f = khz D.F. = % V IN = V 3.9 k C trip µf µf V EE = V =.Ω C trip = ~ 7pF CIRCUIT V CC V EE Operation Flow on Detecting Short Circuit START DETECT THE SHORT CIRCUIT Precaution. The 3, 7, and pins are for production test purposes only. Do not use these pins for any connections.. The µf capacitors for power supply decoupling must be located as close as possible to the M7AL-. GATE SIGNAL SHUT DOWN TIMER START FAULT SIGNAL OUTPUT TIMER END YES INPUT SIGNAL IS "L" NO NO ~ msec 3. If C trip is used it must be connected as close as possible to pins and.. To avoid possible misoperation, the input signal should be maintained in the off state during power up/down.. If it is necessary or desirable to disable the short circuit protection function this can be accomplished by leaving pin not connected. YES RESET Note: When the protection circuit is activated the output voltage becomes VEE Volts.

5 Powerex, Inc., Hillis Street, Youngwood, Pennsylvania 97- (7) 9-77 M7AL- Definition of Characteristics Application Example for Single Power Supply. Switching Operation V IN 3.9k t r tf V OUT 9% % % t PLH t PHL V IN 3 M7AL- V CC = V R = 3.3kΩ µf V Z (D Z ) =.V C rev = 7 F min. D Z R Note: Input signals must be delayed until C rev is fully charged. C rev CIRCUIT V CC. The Timing When the Over Current or Short Circuit Protection Operates Application Example for High Power Module 3.9k V I V V O V PIN OUTPUT -3V t trip, V t timer V V M7AL- 3 C trip V CC V EE C C Q Q V EE = V C trip = ~ 7pF C C F (low impedance type) Manufacturer Q (NPN) Q (PNP) Motorola DVH DVH Shindengen Zetex SC ZTX SA ZTX9

6 Powerex, Inc., Hillis Street, Youngwood, Pennsylvania 97- (7) 9-77 M7AL- Adjustment of Soft Shutdown Application Example for Softer Shutdown If it is necessary to make the soft shutdown slower in order to control transient voltages, an external capacitor (C s ) and resistor can be connected between pin and pin k C trip INPUT SIGNAL 9% t t V M7AL- 3 9 V CC C V EE C C S Q Q % OUTPUT VOLTAGE (PIN to PIN ) % % V EE = V C trip = pf C C F (low impedance) t, t VS. C S CHARACTERISTICS Manufacturer Q (NPN) Motorola DVH Shindengen SC Zetex ZTX Q (PNP) DVH SA ZTX9 FALL TIME ON ACTIVITY CIRCUIT PROTECTION, t, t ( S) t t 7 CONNECTIVE CAPACITANCE, C S, (nf) (PIN 9 R ( ) CS PIN )