VND5050AJ-E_08 Datasheet, PDF (1/38 Pages) STMicroelectronics – Double channel high side driver with analog current sense for automotive applications

VND5050AJ-E
VND5050AK-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 50 mΩ
I_LIMH
I_S
18 A
2 µA⁽¹⁾
1. Typical value with all loads connected
■ Main
– 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
■ Protections
– 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)
– Electrostatic discharge protection
PowerSSO-12 PowerSSO-24
Application
■ All types of resistive, inductive and capacitive
loads
■ Suitable as LED driver
Description
The VND5050AJ-E, VND5050AK-E is a
monolithic device made using STMicroelectronics
VIPower M0-5 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.
February 2008
Rev 7
1/38
www.st.com
38