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PDF VNQ7140AJ Datasheet ( Hoja de datos )

Número de pieza VNQ7140AJ
Descripción Quad channel high-side driver
Fabricantes STMicroelectronics 
Logotipo STMicroelectronics Logotipo

Total 30 Páginas
		
VNQ7140AJ Hoja de datos, Descripción, Manual
VNQ7140AJ
Quad channel high-side driver with MultiSense 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 140
ILIMH 12 A
ISTBY 0.5 µA
Automotive qualified
General
Quad channel smart high-side driver
with MultiSense analog feedback
Very low standby current
Compatible with 3 V and 5 V CMOS
outputs
MultiSense diagnostic functions
Multiplexed analog feedback of: load
current with high precision proportional
current mirror, VCC supply voltage and
TCHIP device temperature
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 R10W or LED Rear
Combinations)
Description
The device is a quad channel high-side driver
manufactured using ST proprietary VIPower®
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 dedicated multifunction multiplexed analog
output pin delivers sophisticated diagnostic
functions including high precision proportional
load current sense, supply voltage feedback and
chip temperature sense, in addition to the
detection of overload and short circuit to ground,
short to VCC and OFF-state open-load.
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
May 2015
DocID027404 Rev 1
This is information on a product in full production.
1/46
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VNQ7140AJ pdf
VNQ7140AJ
Block diagram and pin description
1 Block diagram and pin description
Figure 1: Block diagram
VCC
FaultRST
INPUT3
INPUT2
INPUT1
INPUT0
SEL2
SEL1
SEL0
SEn
Multisense
GND
VCC– GND
Clamp
Internal supply
Undervoltage
shut-down
Channel 3
Channel 2
Channel 1
Control & Diagnostic
Channel 0
VCC
T
0
Fault
VSE N SE H
VCC– OUT
Clamp
Gate Driver
Current
Limitation
VON
Limitation
Power Limitation
Overtemperature
Short to VCC
Open-Load in OFF
C u rr en t
S ens e
CH 1
CH 3
CH 2
CH 0
OUTPUT3
OUTPUT2
T OUTPUT1
OUTPUT0
GAPGCFT00378
Name
VCC
OUTPUT0,1,2,3
GND
INPUT0,1,2,3
MultiSense
SEn
SEL0,1,2
FaultRST
Table 1: Pin functions
Function
Battery connection.
Power output.
Ground connection. Must be reverse battery protected by an external
diode / resistor network.
Voltage controlled input pin with hysteresis, compatible with 3 V and 5 V
CMOS outputs. It controls output switch state.
Multiplexed analog sense output pin; it delivers a current proportional to
the selected diagnostic: load current, supply voltage or chip temperature.
Active high compatible with 3 V and 5 V CMOS outputs pin; it enables
the MultiSense diagnostic pin.
Active high compatible with 3 V and 5 V CMOS outputs pin; they address
the MultiSense multiplexer.
Active low compatible with 3 V and 5 V CMOS outputs pin; it unlatches
the output in case of fault; If kept low, sets the outputs in auto-restart
mode.
DocID027404 Rev 1
5/46

5 Page

VNQ7140AJ arduino
VNQ7140AJ
7 V < VCC < 18 V; -40°C < Tj < 150°C
Symbol
Parameter
Test conditions
ILIML
TTSD
TR
TRS
Short circuit current VCC = 13 V;
during thermal cycling TR < Tj < TTSD
Shutdown temperature
Reset temperature(1)
Thermal reset of fault
diagnostic indication
VFR = 0 V; VSEn = 5 V
THYST
Thermal hysteresis
(TTSD - TR)(1)
ΔTJ_SD Dynamic temperature Tj = -40°C; VCC = 13 V
tLATCH_RST(1)
Fault reset time for
output unlatch
VFR = 5 V to 0 V;
VSEn = 5 V
E.g. Ch0
VIN0 = 5 V;
VSEL0,1,2 = 0 V
VDEMAG
Turn-off output voltage
clamp
IOUT= 1 A; L = 6 mH;
Tj = -40°C
IOUT= 1 A; L = 6 mH;
Tj = 25°C to 150°C
VON
Output voltage drop
limitation
IOUT = 0.07 A
Electrical specification
Min. Typ. Max. Unit
4
150 175
TRS + 1 TRS + 7
200
135 °C
7
60 K
3 10 20 µs
VCC - 38
V
VCC - 41 VCC - 46 VCC - 52 V
20 mV
Notes:
(1)Parameter guaranteed by design and characterization; not subject to production test.
Table 9: MultiSense
7 V < VCC < 18 V; -40°C < Tj < 150°C
Symbol
Parameter
Test conditions
VSENSE_CL
MultiSense clamp VSEn = 0 V; ISENSE = 1 mA
voltage
VSEn = 0 V; ISENSE = -1 mA
Current Sense characteristics
KOL
IOUT/ISENSE
IOUT = 0.01 A; VSENSE = 0.5 V;
VSEn = 5 V
dKcal/Kcal(1)(2)
Current sense ratio IOUT = 0.01 A to 0.025 A;
drift at calibration Ical = 17.5 mA; VSENSE = 0.5 V;
point
VSEn = 5 V
KLED
IOUT/ISENSE
IOUT = 0.025 A; VSENSE = 0.5 V;
VSEn = 5 V
dKLED/KLED(1)(2)
Current sense ratio
drift
IOUT = 0.025 A; VSENSE = 0.5 V;
VSEn = 5 V
K0 IOUT/ISENSE
IOUT = 0.070 A; VSENSE = 0.5 V;
VSEn = 5 V
dK0/K0(1)(2)
Current sense ratio IOUT = 0.070 A; VSENSE = 0.5 V;
drift VSEn = 5 V
Min. Typ. Max. Unit
-17 -12
V
7
330
-30 30 %
330 580 830
-25 25 %
375 550 720
-20 20 %
DocID027404 Rev 1
11/46

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