VN5012AK-E
Single channel high side driver with analog current sense
for automotive applications
Features
Max supply voltage
Operating voltage range
Max On-State resistance (per ch.)
Current limitation (typ)
Off state supply current (typ)
1.
■
Typical value with all loads connected
V
CC
V
CC
R
ON
I
LIMH
I
S
41V
4.5 to 36V
12 mΩ
65 A
2 µA
(1)
PowerSSO-24
– Electrostatic discharge protection
Application
■
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
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
All types of resistive, inductive and capacitive
loads
Description
The VN5012AK-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.
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Table 1. Device summary
Package
Tube
PowerSSO-24
VN5012AK-E
Order codes
Tape & Reel
VN5012AKTR-E
August 2008
Rev 6
1/31
31
STMICROELECTRONICS [ STMICROELECTRONICS ]
