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PDF VNQ5E250AJ-E Data sheet ( Hoja de datos )
| Número de pieza | VNQ5E250AJ-E | |
| Descripción | Quad channel high-side driver with analog current sense | |
| Fabricantes | ST Microelectronics | |
| Logotipo |  |
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VNQ5E250AJ-E
Quad channel high-side driver with analog current sense
for automotive applications
Features
Max supply voltage
VCC 41 V
Operating voltage range
VCC 4 to 28 V
Max on-state resistance (per ch.) RON 250 mΩ
Current limitation (typ)
Off-state supply current
ILIMH
IS
5A
2 µA(1)
1. Typical value with all loads connected.
■ General
– Inrush current active management by
power limitation
– Very low standby current
– 3.0V CMOS compatible inputs
– Optimized electromagnetic emissions
– Very low electromagnetic susceptibility
– In compliance with the 2002/95/EC
european directive
– Very low current sense leakage
■ Diagnostic functions
– Proportional load current sense
– High current sense precision for wide
currents range
– Current sense disable
– Off-state open-load detection
– Output short to VCC detection
– Overload and short to ground (power
limitation) indication
– Thermal shutdown indication
■ Protections
– Undervoltage shutdown
– Overvoltage clamp
– Load current limitation
– Self limiting of fast thermal transients
– Protection against loss of ground and loss
of VCC
PowerSSO-16
– Overtemperature shutdown with auto
restart (thermal shutdown)
– Reverse battery protected (see Figure 32)
– Electrostatic discharge protection
Applications
■ All types of resistive, inductive and capacitive
loads
■ Suitable as LED driver
■ Suitable as relays driver
Description
The VNQ5E250AJ-E is a quad channel high-side
driver manufactured in the ST proprietary
VIPower™ M0-5 technology and housed in the
tiny PowerSSO-16 package. The VNQ5E250AJ-E
is designed to drive 12 V automotive grounded
loads delivering protection, diagnostics and easy
3 V and 5 V CMOS compatible interface with any
microcontroller. The device integrates advanced
protective functions such as load current
limitation, inrush and overload active
management by power limitation,
overtemperature shut-off with auto-restart and
over-voltage active clamp. A dedicated analog
current sense pin is associated with every output
channel in order to provide enhanced diagnostic
functions including fast detection of overload and
short-circuit to ground through power limitation
indication, overtemperature indication, short-
circuit to VCC diagnosis and ON and OFF-state
open-load detection. The current sensing and
diagnostic feedback of the whole device can be
disabled by pulling the CS_DIS pin high to allow
sharing of the external sense resistor with other
similar devices.
April 2010
Doc ID 17360 Rev 1
1/37
www.st.com
1
1 page  
VNQ5E250AJ-E
www.DataSheet4U.com
Block diagram and pin configuration
1 Block diagram and pin configuration
Figure 1. Block diagram
Signal Clamp
VCC
Undervoltage
IN1
IN2
IN3
IN4
CS_
DIS
CS1
CS2
CS3
LOGIC
CS4
Control & Diagnostic 1
Power
Clamp
DRIVER
Over
temp.
Current
Limitation
VON
Limitation
OFF State
Open load
VSENSEH
Current
Sense
OVERLOAD PROTECTION
(ACTIVE POWER LIMITATION)
CH 1
GND
CH 4
CH 3
CH 2
OUT4
OUT3
OUT2
OUT1
Table 1. Pin functions
Name
Function
VCC
OUTPUTn
GND
INPUTn
CURRENT
SENSEn
CS_DIS
Battery connection.
Power output.
Ground connection. Must be reverse battery protected by an external
diode/resistor network.
Voltage controlled input pin with hysteresis, CMOS compatible. Controls output
switch state.
Analog current sense pin, delivers a current proportional to the load current.
Active high CMOS compatible pin, to disable the current sense pin.
Doc ID 17360 Rev 1
5/37
5 Page 
VNQ5E250AJ-E
www.DataSheet4U.com
Electrical specifications
Table 9. Current sense (8 V < VCC < 18 V)
Symbol
Parameter
Test conditions
K0
K1
dK1/K1(1)
K2
dK2/K2(1)
K3
dK3/K3(1)
IOUT/ISENSE
IOUT/ISENSE
Current sense ratio drift
IOUT/ISENSE
Current sense ratio drift
IOUT/ISENSE
Current sense ratio drift
IOUT = 0.025 A;VSENSE = 0.5 V
Tj = -40 °C...150 °C
IOUT = 0.25 A;VSENSE = 0.5 V
Tj = -40 °C...150 °C
Tj = 25 °C...150 °C
IOUT = 0.25 A;VSENSE = 4 V
Tj = -40 °C...150 °C
IOUT = 0.5 A;VSENSE = 4 V
Tj = -40 °C...150 °C
Tj = 25 °C...150 °C
IOUT = 0.5 A; VSENSE = 4 V
Tj = -40 °C...150 °C
IOUT = 1 A; VSENSE = 4 V
Tj = -40 °C...150 °C
Tj = 25 °C...150 °C
IOUT = 1 A; VSENSE = 4 V
Tj = -40 °C...150 °C
IOUT = 0 A; VSENSE = 0 V;
VCSD=5V; VIN=0V;
Tj = -40 °C...150 °C
ISENSE0
Analog sense leakage
current
VCSD = 0 V; VIN = 5 V;
Tj = -40 °C...150 °C
IOL
VSENSE
Openload ON-state
current detection
threshold
Max analog sense
output voltage
Analog sense output
VSENSEH voltage in fault
condition(2)
ISENSEH
Analog sense output
current in fault
condition(2)
IOUT = 0.5 A; VSENSE = 0 V;
VCSD = 5 V; VIN = 5 V;
Tj = -40 °C...150 °C
VIN = 5 V, 8 V < VCC < 18 V
ISENSE = 5 µA
IOUT = 0.5 A; VCSD = 0 V
RSENSE = 10 KΩ
VCC = 13 V; RSENSE = 3.9 KΩ
VCC = 5 V; RSENSE = 3.9 KΩ
VCC=13V; VSENSE = 5V
VCC = 5 V; VSENSE = 3.5 V
Min. Typ. Max. Unit
295 500 705
360 470 595
395 470 568
-9 +9 %
425 485 555
445 485 540
-6 +6 %
465 500 535
475 500 525
-4 +4 %
0 1 µA
0 2 µA
0 1 µA
0.5 5 mA
5
8
4.5
9
6
V
V
mA
Doc ID 17360 Rev 1
11/37
11 Page | ||
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