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September 2013 Doc ID 17360 Rev 3 1/37
1
VNQ5E250AJ-E
Quad channel high-side driver with analog current sense
for automotive applications
Features
■
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
– Compliant 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)
– Reverse battery protected
– Electrostatic discharge protection
Applications
■
All types of resistive, inductive and capacitive
loads
■
Suitable as LED driver
■
Suitable as relays driver
Description
The VNQ5E250AJ-E is a quad channel high-side
driver manufactured using ST proprietary
VIPower™ M0-5 technology and housed in
PowerSSO-16 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
the external sense resistor with similar devices.
Max supply voltage V
CC
41 V
Operating voltage range V
CC
4 to 28 V
Max on-state resistance (per ch.) R
ON
250 mΩ
Current limitation (typ) I
LIMH
5A
Off-state supply current I
S
2µA
(1)
1. Typical value with all loads connected.
PowerSSO-16
www.st.com
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