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STMicroelectronics Electronic Components Datasheet

VNQ5050AK-E Datasheet

Quad channel high side driver

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VNQ5050AK-E
Quad channel high side driver with analog current sense
for automotive applications
Features
Max supply voltage
VCC 41V
Operating voltage range
VCC 4.5 to 36V
Max on-state resistance (per ch.) RON 50 m
Current limitation (typ)
Off state supply current
ILIMH
IS
19 A
2 µA(1)
1. Typical value with all loads connected.
General features:
– Inrush current active management by
power limitation
– Very low stand-by current
– 3.0V CMOS compatible input
– Optimized electromagnetic emission
– Very low electromagnetic susceptibility
– In compliance with the 2002/95/EC
European directive
Diagnostic functions:
– Proportional load current sense
– High current sense precision for wide
current range
– Current sense disable
www.DataSheet4UT.choemrmal shutdown indication
– Very low current sense leakage
Protection:
– Undervoltage shut-down
– Overvoltage clamp
– Load current limitation
– Self limiting of fast thermal transients
– Protection against loss of ground and loss of VCC
– Thermal shut down
– Reverse battery protection (see Figure 25)
– Electrostatic discharge protection
PowerSSO-24
Application
All types of resistive, inductive and capacitive
loads.
Suitable as LED driver.
Description
The VNQ5050AK-E is a monolithic device made
using STMicroelectronics VIPower M0-5
technology. It is intended for driving resistive or
inductive loads with one side connected to
ground. Active VCC pin voltage clamp protects the
device against low energy spikes (see ISO7637
transient compatibility table).
This device integrates an analog current sense
which delivers a current proportional to the load
current (according to a known ratio) when
CS_DIS is driven low or left open. When CS_DIS
is driven high, the CURRENT SENSE pin is in a
high impedance condition.
Output current limitation protects the device in
overload condition. In case of long overload
duration, the device limits the dissipated power to
a safe level up to thermal shut-down intervention.
Thermal shut-down with automatic restart allows
the device to recover normal operation as soon as
the fault condition disappears.
Table 1. Device summary
Package
Tube
Order codes
Tape and Reel
PowerSSO-24
VNQ5050AK-E
VNQ5050AKTR-E
December 2007
Rev 6
1/31
www.st.com
31


STMicroelectronics Electronic Components Datasheet

VNQ5050AK-E Datasheet

Quad channel high side driver

No Preview Available !

Contents
Contents
VNQ5050AK-E
1 Block diagram and pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.2 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.4 Electrical characteristics curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3 Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.1 GND protection network against reverse battery . . . . . . . . . . . . . . . . . . . 20
3.1.1 Solution 1: resistor in the ground line (RGND only) . . . . . . . . . . . . . . . . 20
3.1.2 Solution 2: a diode (DGND) in the ground line. . . . . . . . . . . . . . . . . . . . 21
3.2 Load dump protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.3 MCU I/Os protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.4 Maximum demagnetization energy (VCC = 13.5V) . . . . . . . . . . . . . . . . . 23
4 Package and PC board thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.1 PowerSSO-24 thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5 Package and packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
5.1
www.DataSheet4U.com
5.2
ECOPACK® packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
PowerSSO-24™ mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
5.3 Packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
6 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
2/31


Part Number VNQ5050AK-E
Description Quad channel high side driver
Maker STMicroelectronics
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