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PDF VN5E050AJ-E Data sheet ( Hoja de datos )
| Número de pieza | VN5E050AJ-E | |
| Descripción | Single channel high side driver | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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VN5E050AJ-E
Single channel high side driver with analog current sense
for automotive applications
Features
Max supply voltage
Operating voltage range
Max On-State resistance
VCC
VCC
RON
41 V
4.5 to 28V
50 mΩ
Current limitation (typ)
Off state supply current
ILIMH
IS
27 A
2 µA(1)
1. Typical value with all loads connected.
■ General
– Inrush current active management by
power limitation
– Very low stand-by 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
– Over-temperature shutdown with
autorestart (thermal shutdown)
PowerSSO-12
– Reverse battery protected ( see Figure 32.)
– Electrostatic discharge protection
Application
■ All types of resistive, inductive and capacitive
loads
■ Suitable as LED driver
Description
The VN5E050AJ-E is a single channel high-side
driver manufactured in the ST proprietary
VIPower M0-5 technology and housed in the tiny
PowerSSO-12 package. The VN5E050AJ-E is
designed to drive 12V automotive grounded loads
delivering protection, diagnostics and easy 3V
and 5V 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, over-temperature 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
Ehnanced diagnostic functions including fast
detection of overload and short-circuit to ground
through power limitation indication, over-
temperature indication, short-circuit to Vcc
diagnosis and ON & 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.
March 2008
Rev 1
1/37
www.st.com
37
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Block diagram and pin description
1 Block diagram and pin description
Figure 1. Block diagram
S ignal C lamp
U nde rvolta ge
IN
CS_
D IS
CS
L O G IC
C ontrol & D iagnos tic
P ower
C lamp
D R IV E R
O ver
te mp.
C urrent
L imita tion
VON
L imita tion
O F F S ta te
O pen load
V SENSEH
C urrent
S ense
O V E R L O A D P R O T E C T IO N
(A C T IV E P O W E R L IM IT A T IO N)
VCC
GND
OUT
Table 1. Pin function
Name
Function
VCC
OUTPUT
Battery connection.
Power output.
GND
INPUT
CURRENT
SENSE
CS_DIS
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.
5/37
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Electrical specifications
Table 9. Current sense (8V<VCC<18V)
Symbol
Parameter
Test conditions
Min. Typ. Max. Unit
K0
K1
dK1/K1(1)
K2
dK2/K2(1)
K3
dK3/K3(1)
ISENSE0
IOL
VSENSE
IOUT/ISENSE
IOUT/ISENSE
Current sense
ratio drift
IOUT/ISENSE
Current sense
ratio drift
IOUT/ISENSE
Current sense
ratio drift
Analog sense
leakage current
Open load ON
state current
detection
threshold
IOUT=0.05A; VSENSE=0.5V;VCSD=0V;
Tj= -40°C...150°C
1170 2000 3090
IOUT= 1A; VSENSE=4 V; VCSD=0V
Tj= -40°C...150°C
Tj=25°C...150°C
1575 2000 2750
1575 2000 2465
IOUT= 1A; VSENSE= 4 V; VCSD=0V;
TJ= -40 °C to 150 °C
-10
10
IOUT = 2A; VSENSE= 4V; VCSD=0V;
Tj= -40°C...150°C
Tj=25°C...150°C
1765 2000 2315
1765 2000 2155
IOUT= 2A; VSENSE= 4V; VCSD=0V;
TJ=-40 °C to 150 °C
-7
7
IOUT= 4A; VSENSE=4V; VCSD=0V;
Tj= -40°C...150°C
Tj= 25°C...150°C
1840 2000 2135
1840 2000 2080
IOUT= 4A; VSENSE= 4 V; VCSD=0V;
TJ= -40 °C to 150 °C
-4
4
IOUT=0A; VSENSE=0V;
VCSD=5V; VIN=0V; Tj=-40°C to 150°C
VCSD=0V; VIN=5V; Tj=-40°C to 150°C
0
0
1
2
%
%
%
µA
µA
IOUT=2A; VSENSE=0V;
VCSD=5V; VIN=5V; Tj=-40°C to 150°C
0
1 µA
VIN = 5V, 8V<VCC<18V
ISENSE= 5 µA
4 20 mA
Max analog sense
output voltage
IOUT=4A; VCSD=0V
5V
VSENSEH
ISENSEH
tDSENSE1H
tDSENSE1L
Analog sense
output voltage in
fault condition(2)
Analog sense
output current in
fault condition(2)
Delay response
time from falling
edge of CS_DIS
pin
Delay response
time from rising
edge of CS_DIS
pin
VCC= 13V; RSENSE= 3.9 KΩ
VCC= 13V; VSENSE= 5V
VSENSE<4V, 0.5A<Iout<4A
ISENSE= 90% of ISENSE max
(see Figure 4.)
VSENSE < 4V, 0.5A<Iout<4A
ISENSE= 10% of ISENSE max
(see Figure 4.)
8V
9 mA
50 100 µs
5 20 µs
11/37
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| PDF Descargar | [ Datasheet VN5E050AJ-E.PDF ] | |
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