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VNH3SP30 Datasheet(PDF) 7 Page - STMicroelectronics |
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VNH3SP30 Datasheet(HTML) 7 Page - STMicroelectronics |
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7 / 26 page  7/26 VNH3SP30 WAVEFORMS AND TRUTH TABLE TRUTH TABLE IN NORMAL OPERATING CONDITIONS In normal operating conditions the DIAGX/ENX pin is considered as an input pin by the device. This pin must be externally pulled high. PWM pin usage: In all cases, a “0” on the PWM pin will turn-off both LSA and LSB switches. When PWM rises back to “1”, LSA or LSB turn on again depending on the input pin state. NB: in no cases external pins (except for GNDB and GNDA) are allowed to be connected with ground. TYPICAL APPLICATION CIRCUIT FOR DC TO 10KHz PWM OPERATION INA INB DIAGA/ENA DIAGB/ENB OUTA OUTB Comment 1 1 1 1 H H Brake to VCC 1 0 1 1 H L Clockwise 0 1 1 1 L H Counter cw 0 0 1 1 L L Brake to GND M CW CCW OUTA OUTB DIAGA/ENA +5V VCC PWM INA 1K 1K 1K DIAGB/ENB +5V INB 1K 1K GNDB GNDA HSA LSA HSB LSB 3.3K 3.3K µC Reg 5V 10K (*) Open load detection in off mode (*) D S G b) N MOSFET VCC |
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