VND5T035AK-E (Rev 0.9)

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Target specification

This is preliminary information on a new product foreseen to be developed. Details are subject to change without notice.

21 May 2010

Doc ID XXXXX Rev 0.9

1/36

VND5T035AK-E VND5T035AS-E

Double channel high side driver with analog current sense

for 24 V automotive applications

Features

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General

–Very low standby current – 3.0V CMOS compatible input

–Optimized electromagnetic emission –Very low electromagnetic susceptibility –In compliance with the 2002/95/EC european directive

–Fault reset standby pin (FR_Stby)

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Diagnostic functions

–Proportional load current sense

–High current sense precision for wide range currents

–Off-state open load detection –Output short to V CC detection

–Overload and short to ground latch off –Thermal shutdown latch-off –Very low current sense leakage

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Protections

–Undervoltage shutdown –Overvoltage clamp –Load current limitation

–Self limiting of fast thermal transients

–Protection against loss of ground and loss of V CC

–Thermal shutdown

–Electrostatic discharge protection

Application

All types of resistive, inductive and capacitive loads

Description

The VND5T035AK-E and VND5T035AS-E are monolithic devices made using

STMicroelectronics? VIPower? technology, intended for driving resistive or inductive loads with one side connected to ground. Active V CC pin voltage clamp protects the devices against low energy spikes (see ISO7637 transient compatibility table).

These devices integrate an analog current sense which deliver a current proportional to the load current.

Fault conditions such as overload,

overtemperature or short to V CC are reported via the current sense pin.

Output current limitation protect the devices in overload condition. The devices latch off in case of overload or thermal shutdown.

The devices are reset by a low level pass on the fault reset standby pin.

A permanent low level on the inputs and fault reset standby pin disables all outputs and sets the devices in standby mode.

Max transient supply voltage V CC 58V Operating voltage range V CC 8 to 36V T yp on-state resistance (per ch.)R ON 35 m ΩCurrent limitation (typ)I LIM 42 A Off-state supply current

I S

2 µA

SO-16L

PowerSSO-24

http://doc.guandang.net

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E 2/36Doc ID XXXXX Rev 0.9Contents

1

Block diagram and pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.1

Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72.2

Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82.3Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

3.1GND protection network against reverse battery . . . . . . . . . . . . . . . . . . . 18

3.1.1

Solution 1: resistor in the ground line (RGND only) . . . . . . . . . . . . . . . . 183.1.2Solution 2: diode (DGND) in the ground line . . . . . . . . . . . . . . . . . . . . . 19

3.2Load dump protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193.3

MCU I/Os protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193.4Maximum demagnetization energy (V CC = 13.5V) . . . . . . . . . . . . . . . . . 20

4Package and PCB thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

4.1

PowerSSO-24 thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

4.2SO-16L thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245Package and packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

5.1ECOP ACK ® . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 275.2

PowerSSO-24 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 275.3

PowerSSO-24 packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 295.4

SO-16L package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 305.5

SO-16L packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 326

Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 337Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

D

R A F T VND5T035AK-E List of tables Doc ID XXXXX Rev 0.93/36List of tables

Table 1.

Pin function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Table 2.

Suggested connections for unused and not connected pins . . . . . . . . . . . . . . . . . . . . . . . . 6Table 3.

Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7Table 4.

Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Table 5.

Power section. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9Table 6.

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