VND5050AJ-E Datasheet, PDF (1/26 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
General
Max supply voltage
Operating voltage range
Max On-State resistance (per ch.)
Current limitation (typ)
Off state supply current
V_CC
V_CC
R_ON
I_LIMH
I_S
41V
4.5 to 36V
50 mΩ
18 A
2 µA^(*)
(*) Typical value with all loads connected
Application
■ All types of resistive, inductive and capacitive loads
■ Suitable as LED driver
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
Order codes
PowerSSO-12 PowerSSO-24
■ Self limiting of fast thermal transients
■ Protection against loss of ground and loss of
V_CC
■ Thermal shut down
■ Reverse battery protection (see Figure 24)
■ Electrostatic discharge protection
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..
Package
PowerSSO-12
PowerSSO-24
Part number (Tube)
VND5050AJ-E
VND5050AK-E
Part number (Tape & Reel)
VND5050AJTR-E
VND5050AKTR-E
April 2006
Rev 2
1/26
www.st.com
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