VNQ5027AK-E Datasheet, PDF (1/31 Pages) STMicroelectronics – Quad channel high side driver with analog current sense for automotive applications

VNQ5027AK-E
Quad channel high side driver with analog current sense
for automotive applications
Features
Max supply voltage
V_CC
41V
Operating voltage range
V_CC 4.5 to 36 V
Max on-state resistance (per ch.) R_ON 27 mΩ
Current limitation (typ)
Off-state supply current
I_LIMH
I_S
42 A
2 µA⁽¹⁾
1. Typical value with all loads connected.
■ Output current: 42A
■ 3.0 V CMOS compatible input
■ Current sense disable
■ Proportional load current sense
■ Undervoltage shut-down
■ Overvoltage clamp
■ Thermal shutdown
■ Current and power limitation
■ Very low standby current
■ Protection against loss of ground and loss of
VCC
■ Very low electromagnetic susceptibility
■ Optimized electromagnetic emission
■ Reverse battery protection (see Application
schematic on page 20)
■ In compliance with the 2002/95/EC European
directive
■ Package: ECOPACK^®
PowerSSO-24
Applications
■ All types of resistive, inductive and capacitive
loads
■ Suitable as LED driver
Description
The VNQ5027AK-E is a monolithic device made
using STMicroelectronics VIPower 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 safe level up
to thermal shut-down intervention.
Thermal shut-down with automatic restart allows
the device to recover normal operation as soon as
fault condition disappears.
Table 1. Device summary
Package
PowerSSO-24
Tube
VNQ5027AK-E
Order codes
Tape and reel
VNQ5027AKTR-E
July 2009
Doc ID 12730 Rev 6
1/31
www.st.com
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