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VNQ7050AJ Datasheet PDF - STMicroelectronics

Part Number VNQ7050AJ
Description Quad channel high-side driver
Manufacturers STMicroelectronics 
Logo STMicroelectronics Logo 

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VNQ7050AJ datasheet, circuit
VNQ7050AJ
Quad channel high-side driver with CurrentSense analog
feedback for automotive applications
Datasheet - production data
Features
Max transient supply voltage
Operating voltage range
Typ. on-state resistance (per Ch)
Current limitation (typ)
Stand-by current (max)
VCC 40 V
VCC 4 to 28 V
RON 50
ILIMH 27 A
ISTBY 0.5 µA
Automotive qualified
General
Quad channel smart high-side driver
with CS analog feedback
Very low standby current
Compatible with 3 V and 5 V CMOS
outputs
CurrentSense diagnostic functions
Analog feedback of load current with
high precision proportional current
mirror
Overload and short to ground (power
limitation) indication
Thermal shutdown indication
OFF-state open-load detection
Output short to VCC detection
Sense enable/disable
Protections
Undervoltage shutdown
Overvoltage clamp
Load current limitation
Self limiting of fast thermal transients
Configurable latch-off on
overtemperature or power limitation
with dedicated fault reset pin
Loss of ground and loss of VCC
Reverse battery with external
components
Electrostatic discharge protection
Applications
All types of Automotive resistive, inductive
and capacitive loads
Specially intended for Automotive Signal
Lamps (up to P27W or SAE1156 or LED
Rear Combinations)
Description
The device is a quad channel high-side driver
manufactured using ST proprietary VIPower®
M0-7 technology and housed in PowerSSO-16
package. The device is designed to drive 12 V
automotive grounded loads through a 3 V and 5
V CMOS-compatible interface, providing
protection and diagnostics.
The device integrates advanced protective
functions such as load current limitation, overload
active management by power limitation and
overtemperature shutdown with configurable
latch-off.
A FaultRST pin unlatches the output in case of
fault or disables the latch-off functionality.
A sense enable pin allows OFF-state diagnosis to
be disabled during the module low-power mode
as well as external sense resistor sharing among
similar devices.
June 2015
DocID027405 Rev 1
This is information on a product in full production.
1/42
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VNQ7050AJ equivalent
VNQ7050AJ
Block diagram and pin description
1 Block diagram and pin description
Figure 1: Block diagram
VCC
FaultRST
INPUT3
INPUT2
INPUT1
INPUT0
SEL1
SEL0
SEn
CS
GND
VCC – GND
Clamp
Internal supply
Undervoltage
shut-down
Channel 3
Channel 2
Channel 1
Control & Diagnostic
Channel 0
0
Fault
VSENSEH
VCC – OUT
Clamp
Gate Driver
Current
Limitation
VON
Limitation
Power Limitation
Overtemperature
Short to VCC
Open-Load in OFF
Current
Sense
CH 1
CH 3
CH 2
CH 0 OUTPUT3
OUTPUT2
T OUTPUT1
OUTPUT0
GAPGCFT00605
Name
Table 1: Pin functions
Function
VCC Battery connection.
OUTPUT0,1,2,3 Power output.
GND
Ground connection. Must be reverse battery protected by an external diode / resistor
network.
INPUT0,1,2,3
Voltage controlled input pin with hysteresis, compatible with 3 V and 5 V CMOS
outputs. They control output switch state.
CS Analog current sense output pin delivers a current proportional to the load current.
SEn
Active high, compatible with 3 V and 5 V CMOS outputs input pin; it enables the CS
diagnostic pin.
SEL0,1
Active high, compatible with 3 V and 5 V CMOS outputs input pin; They address the
CS multiplexer.
FaultRST
Active low, compatible with 3 V and 5 V CMOS outputs input pin; it unlatches the
output in case of fault; If kept low, sets the outputs in auto-restart mode.
DocID027405 Rev 1
5/42

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Information Total 30 Pages
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