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PDF VNQ7050AJ Data sheet ( Hoja de datos )
| Número de pieza | VNQ7050AJ | |
| Descripción | Quad channel high-side driver | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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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 mΩ
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
www.st.com
1 page  
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
5 Page 
VNQ7050AJ
Electrical specification
Symbol
Parameter
Test conditions
Min.
Typ. Max. Unit
TTSD
TR
TRS
Shutdown temperature
Reset temperature(1)
Thermal reset of fault
diagnostic indication
VFR = 0 V; VSEn = 5 V;
150
TRS + 1
135
175
TRS + 7
200
°C
THYST
Thermal hysteresis (TTSD -
TR)(1)
ΔTJ_SD Dynamic temperature
Tj = -40°C; VCC = 13 V
tLATCH_RST
Fault reset time for output
unlatch(1)
VFR = 5 V to 0 V;
VSEn = 5 V
• E.g. Ch0
VIN0 = 5 V;
VSEL0,1 = 0 V
VDEMAG
IOUT= 2 A; L = 6 mH;
Tj = -40°C
Turn-off output voltage clamp
IOUT= 2 A; L = 6 mH;
Tj = 25°C to 150°C
VON Output voltage drop limitation IOUT = 0.2 A
3
VCC - 38
VCC - 41
7
60 K
10 20 µs
V
VCC - 46 VCC - 52 V
20 mV
Notes:
(1)Parameter guaranteed by design and characterization; not subject to production test.
Table 9: CurrentSense (7 V < VCC < 18 V; -40°C < Tj < 150°C)
Symbol
Parameter
Test conditions
Min. Typ. Max. Unit
VSENSE_CL
Current sense clamp
voltage
VSEn = 0 V; ISENSE = 1 mA
VSEn = 0 V; ISENSE = -1 mA
-17 -12
V
7
Current Sense characteristics
KOL
IOUT/ISENSE
dKcal/Kcal(1)(2)
Current sense ratio drift at
calibration point
KLED
IOUT/ISENSE
dKLED/KLED(1)(2) Current sense ratio drift
K0 IOUT/ISENSE
dK0/K0(1)(2) Current sense ratio drift
K1 IOUT/ISENSE
dK1/K1(1)(2) Current sense ratio drift
K2 IOUT/ISENSE
IOUT = 0.01 A; VSENSE = 0.5 V;
VSEn = 5 V
IOUT = 0.01 A to 0.05 A;
Ical = 30 A; VSENSE = 0.5 V;
VSEn = 5 V
IOUT = 0.05 A; VSENSE = 0.5 V;
VSEn = 5 V
IOUT = 0.05 A; VSENSE = 0.5 V;
VSEn = 5 V
IOUT = 0.2 A; VSENSE = 0.5 V;
VSEn = 5 V
IOUT = 0.2 A; VSENSE = 0.5 V;
VSEn = 5 V
IOUT = 0.4 A; VSENSE = 4 V;
VSEn = 5 V
IOUT = 0.4 A; VSENSE = 4 V;
VSEn = 5 V
IOUT = 1.5 A; VSENSE = 4 V;
VSEn = 5 V
425
-30 30 %
530 1390 2120
-30 30 %
730 1280 1700
-25 25 %
830 1180 1545
-20 20 %
885 1120 1335
DocID027405 Rev 1
11/42
11 Page | ||
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