VNH7040AY datasheet(25/48 Pages) STMICROELECTRONICS

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VNH7040AY

Electrical specifications

Table 14. Off-state — truth table

Description

Off-state diagnostic

VSENSEH

Case 1: OUTA shorted to VCC if no pull-up is

applied.

Case 2: NO open-load in full bridge configuration

with an external pull-up on OUTB

Case 3: open-load in half bridge configuration with

an external pull-up on OUTA (motor connected

between Out and Ground)

Hi-Z

Case 1: open-load in full Bridge configuration with

an external pull-up on OUTB

Case 2: NO open-load in half Bridge configuration

with external pull-up on OUTA (motor connected

between Out and Ground)

0(1)(2) 0(1)(2)

1VSENSEH

Case 1: OUTB shorted to VCC if no pull-up is

applied

Case 2: NO open-load in full bridge configuration

with external pull-up on OUTA

Case 3: open-load in half bridge configuration with

external pull-up on OUTB (motor connected between

Out and Ground)

Hi-Z

Case1: open-load in full Bridge configuration with

an external pull-up on OUTA

Case 2. NO open-load in half Bridge configuration

with external pull-up on OUTB (motor connected

between Out and Ground)

1. The device enters standby mode after TD_sdby.

2. To power on the device from standby, it is recommended to: toggle INA or INB or SEL0 or SEL1 from 0 to 1 first to come

out from STBY mode; toggle PWM from 0 to 1 with a delay of 20 μs this avoids any overstress on the device in case of

existing short-to-battery.

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