VNQ5E050AK-E Datasheet, PDF (1/37 Pages) STMicroelectronics – Quad channel high-side driver with analog current sense for automotive applications

VNQ5E050AK-E
Quad channel high-side driver with analog current sense
for automotive applications
Features
Max supply voltage
V_CC
41 V
Operating voltage range
V_CC 4.5 to 28 V
Max on-state resistance (per ch.) R_ON 50 mΩ
Current limitation (typ)
Off-state supply current
I_LIMH
I_S
27 A
2 µA⁽¹⁾
1. Typical value with all loads connected.
■ General
– Inrush current active management by
power limitation
– Very low standby current
– 3.0 V CMOS compatible inputs
– Optimized electromagnetic emissions
– Very low electromagnetic susceptibility
– Compliance with European directive
2002/95/EC
– Very low current sense leakage
■ Diagnostic functions
– Proportional load current sense
– High current sense precision for wide
currents range
– Current sense disable
– Off-state open-load detection
– Output short to V_CC detection
– Overload and short to ground (power
limitation) indication
– Thermal shutdown indication
■ Protections
– Undervoltage shutdown
– Overvoltage clamp
– Load current limitation
– Self limiting of fast thermal transients
– Protection against loss of ground and loss
of V_CC
– Overtemperature shutdown with auto
restart (thermal shutdown)
PowerSSO-24
– Reverse battery protected
– Electrostatic discharge protection
Application
■ All types of resistive, inductive and capacitive
loads
■ Suitable as LED driver
Description
The VNQ5E050AK-E is a quad channel high-side
driver manufactured using ST proprietary
VIPower™ M0-5 technology and housed in
PowerSSO-24 package. The device is designed
to drive 12 V automotive grounded loads, and to
provide protection and diagnostics. It also
implements a 3 V and 5 V CMOS compatible
interface for the use with any microcontroller.
The device integrates advanced protective
functions such as load current limitation, inrush
and overload active management by power
limitation, overtemperature shut-off with
auto-restart and overvoltage active clamp.
A dedicated analog current sense pin is
associated with every output channel providing
enhanced diagnostic functions including fast
detection of overload and short-circuit to ground
through power limitation indication,
overtemperature indication, short-circuit to V_CC
diagnosis and on-state and off-state open-load
detection. The current sensing and diagnostic
feedback of the whole device can be disabled by
pulling the CS_DIS pin high to share external
sense resistor with similar devices.
October 2010
Doc ID 13519 Rev 6
1/37
www.st.com
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