VN5E050ASO-E Datasheet, PDF (1/37 Pages) STMicroelectronics – Single channel high-side driver with analog current sense for automotive applications

VN5E050ASO-E
Single channel high-side driver with analog current sense
for automotive applications
Datasheet − production data
Features
Max supply voltage
V_CC
Operating voltage range
V_CC
Max on-state resistance
R_ON
Current limitation (typ)
I_LIMH
Off-state supply current
I_S
1. Typical value with all loads connected.
41 V
4.5 to 28V
50 mΩ
27 A
2 µA⁽¹⁾
■ 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
– AEC-Q100 qualified
■ 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
SO-16L
("1($'5
– Overtemperature shutdown with auto
restart (thermal shutdown)
– Reverse battery protected
– Electrostatic discharge protection
Application
■ All types of resistive, inductive and capacitive
loads
■ Suitable as LED driver
Description
The VN5E050ASO-E is a single channel high-
side driver manufactured using ST proprietary
VIPower^® M0-5 technology and housed in the
SO-16L 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.
September 2013
This is information on a product in full production.
Doc ID 022449 Rev 5
1/37
www.st.com
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