VND5025AK-E_08 Datasheet, PDF (1/31 Pages) STMicroelectronics – Double channel high side driver with analog current sense for automotive applications

VND5025AK-E
Double channel high side driver with analog
current sense for automotive applications
Features
Max transient supply voltage
Operating voltage range
Max On-State resistance (per ch.)
Current limitation (typ)
Off state supply current
V_CC
41V
V_CC 4.5 to 36V
R_ON 25 mΩ
I_LIMH
I_S
41 A
2 µA⁽¹⁾
PowerSSO-24™
– Electrostatic discharge protection
Application
1. Typical value with all loads connected.
■ Main
– In-rush 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
– Package: ECOPACK^®
■ 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
– Load current limitation
– Self-limiting of fast thermal transients
– Protection against loss of ground and loss
of V_CC
– Thermal shut down
– Reverse battery protection (see Application
schematic)
■ All types of resistive, inductive and capacitive
loads
■ Suitable as LED driver
Description
The VND5025AK-E is a monolithic device made
using STMicroelectronics VIPower M0-5
technology, intended for driving resistive or
inductive loads with one side connected to
ground, and suitable for driving LEDs. 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.
Table 1. Device summary
Package
Tube
Order codes
Tape and Reel
PowerSSO-24™
VND5025AK-E
VND5025AKTR-E
April 2008
Rev 8
1/31
www.st.com
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