VN5E050AJ-E Datasheet, PDF (1/37 Pages) STMicroelectronics – Single channel high side driver with analog current sense for automotive applications

VN5E050AJ-E
Single channel high side driver with analog current sense
for automotive applications
Features
Max supply voltage
Operating voltage range
Max On-State resistance
V_CC
V_CC
R_ON
41 V
4.5 to 28V
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 stand-by current
– 3.0V CMOS compatible inputs
– Optimized electromagnetic emissions
– Very low electromagnetic susceptibility
– In compliance with the 2002/95/EC
european directive
– 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
– Over-temperature shutdown with
autorestart (thermal shutdown)
PowerSSO-12
– Reverse battery protected ( see Figure 32.)
– Electrostatic discharge protection
Application
■ All types of resistive, inductive and capacitive
loads
■ Suitable as LED driver
Description
The VN5E050AJ-E is a single channel high-side
driver manufactured in the ST proprietary
VIPower M0-5 technology and housed in the tiny
PowerSSO-12 package. The VN5E050AJ-E is
designed to drive 12V automotive grounded loads
delivering protection, diagnostics and easy 3V
and 5V CMOS compatible interface with any
microcontroller.
The device integrates advanced protective
functions such as load current limitation, inrush
and overload active management by power
limitation, over-temperature shut-off with
auto-restart and over-voltage active clamp. A
dedicated analog current sense pin is associated
with every output channel in order to provide
Ehnanced diagnostic functions including fast
detection of overload and short-circuit to ground
through power limitation indication, over-
temperature indication, short-circuit to Vcc
diagnosis and ON & 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 allow sharing of the external
sense resistor with other similar devices.
March 2008
Rev 1
1/37
www.st.com
37