herunterladen
This is information on a product in full production.
October 2014 DocID022518 Rev 8 1/52
VN7140AS-E
VN7140AJ-E
High-side driver with MultiSense analog feedback for automotive
application
Datasheet
-
production data
Features
• General
– Single channel smart high-side driver with
MultiSense analog feedback
– Very low standby current
– Compatible with 3 V and 5 V CMOS output
• MultiSense diagnostic functions
– Multiplexed analog feedback of: load
current with high precision proportional
current mirror, V
CC
supply voltage and
T
CHIP
device temperature
– Overload and short to ground (power
limitation) indication
– Thermal shutdown indication
– OFF-state open-load detection
– Output short to V
CC
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 V
CC
– 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 VN7140AS-E and VN7140AJ-E are single
channel high-side driver manufactured using ST
proprietary VIPower
®
technology and housed in
PowerSSO-16 and SO-8 packages. The devices
are designed to drive 12 V automotive grounded
loads through a 3 V and 5 V CMOS-compatible
interface, and to provide protection and
diagnostics.
The devices integrate 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
(VN7140AJ-E only) and chip temperature sense
(VN7140AJ-E only), in addition to the detection of
overload and short circuit to ground, short to V
CC
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.
Max transient supply voltage V
CC
40 V
Operating voltage range V
CC
4 to 28 V
Typ. on-state resistance (per Ch) R
ON
140 mΩ
Current limitation (typ) I
LIMH
12 A
Stand-by current (max) I
STBY
0.5 µA
62
("1($'5
www.st.com
Verzeichnis
- ・ Konfiguration des Pinbelegungsdiagramms on Seite 7
- ・ Abmessungen des Paketumrisses on Seite 45 Seite 46 Seite 47 Seite 48
- ・ Blockdiagramm on Seite 7 Seite 8
- ・ Technische Daten on Seite 9 Seite 10
- ・ Anwendungsbereich on Seite 1
- ・ Elektrische Spezifikation on Seite 9 Seite 10 Seite 11 Seite 12 Seite 13
