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September 2013 Doc ID 10864 Rev 7 1/31
1
VNQ5050K-E
Quad channel high side driver
for automotive applications
Features
■
General features
– Inrush current active management by
power limitation
– Very low standby current
– 3.0 V CMOS compatible input
– Optimized electromagnetic emission
– Very low electromagnetic susceptibility
– In compliance with the 2002/95/EC
European directive
■
Diagnostic functions
– Open drain status output
– On-state open load detection
– Off-state open load detection
– Thermal shutdown indication
■
Protection
– Undervoltage shutdown
– Overvoltage clamp
– Load current limitation
– Self limiting of fast thermal transients
– Protection against loss of ground and loss
of V
CC
– Thermal shutdown
– Reverse battery protection (see Application
schematic on page 19)
– Electrostatic discharge protection
Applications
■
All types of resistive, inductive and capacitive
loads
Description
The VNQ5050K-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).
The device detects open load condition both in on
and off-state, when STAT_DIS is left open or
driven low. Output shorted to Vcc is detected in
the off-state.
When STAT_DIS is driven high, the STATUS 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
a safe level up to thermal shutdown intervention.
Thermal shutdown with automatic restart allows
the device to recover normal operation as soon as
the fault condition disappears.
Max supply voltage V
CC
41 V
Operating voltage range V
CC
4.5 to 36 V
Max on-state resistance (per ch.) R
ON
50 mΩ
Current limitation (typ) I
LIMH
19 A
Off-state supply current I
S
2µA
(1)
1. Typical value with all loads connected
Table 1. Device summary
Package
Order code
Tube Tape and reel
PowerSSO-24 VNQ5050K-E VNQ5050KTR-E
PowerSSO-24
www.st.com
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