VNH3ASP30-E データシートの表示（PDF） - STMicroelectronics

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VNH3ASP30-E

Automotive fully integrated H-bridge motor driver

STMicroelectronics 

VNH3ASP30-E

Block diagram and pin description

1

Block diagram and pin description

Figure 1. Block diagram

VCC

OVERTEMPERATURE A

OV + UV

OUTA

CLAMP HSA

HSA

DRIVER

HSA

CURRENT

LIMITATION A

1/K

CLAMP LSA

LSA

DRIVER

LSA

LOGIC

OVERTEMPERATURE B

CLAMP HSB

DRIVER

HSB

HSB

CURRENT

LIMITATION B

1/K

CLAMP LSB

DRIVER

LSB

LSB

OUTB

GNDA

DIAGA/ENA INA CS PWM INB DIAGB/ENB

GNDB

Table 2. Block description

Name

Description

Logic control

Allows the turn-on and the turn-off of the high-side and the low-side switches

according to the truth table

Overvoltage +

undervoltage

Shuts down the device outside the range [5.5V..16V] for the battery voltage

High-side and low- Protect the high-side and the low-side switches from the high voltage on the

side clamp voltage battery line in all configurations for the motor

High-side and low- Drives the gate of the concerned switch to allow a good RDS(on) for the leg of

side driver

the bridge

Linear current limiter

Limits the motor current by reducing the high-side switch gate source voltage

when short-circuit to ground occurs

Overtemperature

protection

In case of short-circuit with the increase of the junction’s temperature, shuts

down the concerned high side to prevent its degradation and to protect the die

Fault detection

Signals an abnormal behavior of the switches in the half-bridge A or B by

pulling low the concerned ENx/DIAGx pin

DocID10833 Rev 7

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