VN5025AJ-E
Single channel high side driver with analog sense
for automotive applications
Features
Max supply voltage
Operating voltage range
Max on-state resistance
Current limitation (typ)
Off state supply current
■
V
CC
V
CC
R
ON
I
LIMH
I
S
41 V
4.5 to 36V
25 mΩ
40 A
2 µA
PowerSSO-12
General features
– Inrush current active management by
power limitation
– Very low stand-by current
– 3.0V CMOS compatible input
– Optimized electromagnetic emission
– Very low electromagnetic susceptibility
– In compliance with the 2002/95/EC
european directive
Diagnostic functions
– proportional load current sense
– high current sense precision for wide range
currents
– current sense disable
– thermal shutdown indication
– very low current sense leakage
Protection
– Undervoltage shut-down
– Overvoltage clamp
– package
– Load current limitation
– Self limiting of fast thermal transients
– Protection against loss of ground and loss
of V
cc
– Thermal shut down
Device summary
– Reverse battery protection (see
)
– Electrostatic discharge protection
Application
■
■
All types of resistive, inductive and capacitive
loads
Suitable as LED driver
Description
The VN5025AJ-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 V
CC
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.
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■
Table 1.
Order codes
Package
Tube
PowerSSO-12
VN5025AJ-E
Tape and Reel
VN5025AJTR-E
February 2008
Rev 5
1/31
31
STMICROELECTRONICS [ STMICROELECTRONICS ]
