VNH5019A-E datasheet(7/37 Pages) STMICROELECTRONICS

Nome de Peças	VNH5019A-E

Descrição Electrónicos	Automotive fully integrated H-bridge motor driver

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Fabricante Electrônico	STMICROELECTRONICS [STMicroelectronics]

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VNH5019A-E

Block diagram and pin description

Doc ID 15701 Rev 8

7/37

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6CS_DIS

Active high CMOS compatible pin to disable the current sense

4INA

Clockwise input. CMOS compatible

7

PWM

PWM input. CMOS compatible.

8CS

Output of current sense. This output delivers a current

proportional to the motor current, if CS_DIS is low or left open.

The information can be read back as an analog voltage across

an external resistor.

9ENB/DIAGB

Status of high-side and low-side switches B; Open drain output.

This pin must be connected to an external pull up resistor. When

externally pulled low, it disables half-bridge B. In case of fault

detection (thermal shutdown of a high-side FET or excessive

ON-state voltage drop across a low-side FET), this pin is pulled

low by the device (see

Table 13: Truth table in fault conditions

(detected on OUTA).

10

INB

Counter clockwise input. CMOS compatible

11

CP

Connection to the gate of the external MOS used for the reverse

battery protection

15, 16, 21

OUTB,

Heat Slug3

Source of high-side switch B / drain of low-side switch B, power

connection to the motor

26, 27, 28

GNDA

Source of low-side switch A and power ground(1)

18, 19, 20

GNDB

Source of low-side switch B and power ground(1)

1.

GNDA and GNDB must be externally connected together

Table 3.

Block descriptions(1)

Name

Description

Logic control

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

low-side switches according to the

Table 12.

Overvoltage + undervoltage

Shut down the device outside the range [4.5 V to 24 V] for the

battery voltage.

High-side, low-side and clamp

voltage

Protect the high-side and the low-side switches from the

high-voltage on the battery line in all configuration for the motor.

High-side and low-side driver

Drive the gate of the concerned switch to allow a proper RDS(on)

for the leg of the bridge.

Linear current limiter

Limits the motor current, by reducing the high-side switch

gate-source voltage when short-circuit to ground occurs.

High-side and low-side

overtemperature protection

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

temperature, it shuts down the concerned driver to prevent its

degradation and to protect the die.

Low-side overload detector

Detects when low-side current exceeds shutdown current and

latches off the concerned low-side.

Table 2.

Pin definitions and functions (continued)

Symbol

Function

Nº de peça semelhante - VNH5019A-E

Fabricante Electrônico	Nome de Peças	Folha de dados	Descrição Electrónicos
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VNH5019A-E Folha de dados(PDF) 7 Page - STMicroelectronics

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