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PDF VN5E025AJ-E Data sheet ( Hoja de datos )
| Número de pieza | VN5E025AJ-E | |
| Descripción | Single channel high side driver | |
| Fabricantes | ST Microelectronics | |
| Logotipo |  |
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VN5E025AJ-E
Single channel high side driver with analog current sense
for automotive applications
Features
Max supply voltage
VCC
Operating voltage range
VCC
Max On-State resistance
RON
Current limitation (typ)
ILIMH
Off state supply current
IS
1. Typical value with all loads connected.
41 V
4.5 to 28V
25 mΩ
60 A
2 µA(1)
■ General
– Inrush current active management by
power limitation
– Very low stand-by current
– 3.0 V 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 openload 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)
– Reverse battery protected (see Figure 32.)
PowerSSO-12
– Electrostatic discharge protection
Application
■ All types of resistive, inductive and capacitive
loads
■ Suitable as LED driver
Description
The VN5E025AJ-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 VN5E025AJ-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
April 2008
Rev 3
1/37
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Block diagram and pin description
1 Block diagram and pin description
Figure 1. Block diagram
S ignal C lamp
U ndervolta ge
IN
CS_
DIS
CS
LOG IC
C ontrol & Diagnostic
P ower
C lamp
DR IVE R
Over
temp.
C urrent
Limitation
VON
Limitation
OFF S tate
Open load
VSENSEH
C urrent
S ense
OVE R LOAD P R OTE C TION
(AC TIVE P OWE R LIMITATION)
VCC
OUT
GND
Table 1. Pin function
Name
Function
VCC Battery connection.
OUTPUT
Power output.
GND
Ground connection. Must be reverse battery protected by an external diode /
resistor network.
INPUT
Voltage controlled input pin with hysteresis, CMOS compatible. Controls
output switch state.
CURRENT SENSE Analog current sense pin, delivers a current proportional to the load current.
CS_DIS
Active high CMOS compatible pin, to disable the current sense pin.
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Electrical specifications
Table 9. Current sense (8V<VCC<18V)
Symbol
Parameter
Test conditions
Min. Typ. Max. Unit
KLED
K0
K1
dK1/K1(1)
K2
dK2/K2(1)
K3
dK3/K3(1)
ISENSE0
IOL
IOUT/ISENSE
IOUT= 0.05A, VSENSE=0.5V,
VCSD=0V
Tj= -40°C...150°C
1370 3180 4930
IOUT/ISENSE
IOUT= 0.5A; VSENSE=0.5V;
VCSD=0V;
Tj= -40°C...150°C
1990 3050 4120
IOUT/ISENSE
IOUT= 2A; VSENSE=4V; VCSD=0V;
Tj= -40°C...150°C
Tj= 25°C...150°C
2100 2860 3840
2220 2860 3500
Current sense ratio
drift
IOUT=2A; VSENSE= 4V;
VCSD=0V;
TJ= -40 °C to 150 °C
-10 10
IOUT/ISENSE
IOUT= 3A; VSENSE=4V; VCSD=0V;
Tj= -40°C...150°C
Tj=25°C...150°C
2300 2850 3520
2420 2850 3300
Current sense ratio
drift
IOUT=3 A; VSENSE= 4 V;
VCSD=0V;
TJ= -40 °C to 150 °C
-7 7
IOUT/ISENSE
IOUT= 10A; VSENSE=4V; VCSD=0V;
Tj= -40°C...150°C
Tj=25°C...150°C
2690 2830 3060
2700 2830 3020
Current sense ratio
drift
IOUT= 10 A; VSENSE= 4 V;
VCSD=0V;
TJ= -40 °C to 150 °C
-4 4
Analog sense
leakage current
IOUT=0A; VSENSE=0V;
VCSD=5V; VIN=0V; Tj=-40°C...150°C
VCSD=0V; VIN=5V; Tj=-40°C...150°C
0
0
1
2
IOUT=2A; VSENSE=0V;
VCSD=5V; VIN=5V; Tj=-40°C...150°C
0
1
Open load ON state
current detection
VIN = 5V, 8V<VCC<18V
threshold
ISENSE= 5 µA
5 30
%
%
%
µA
µA
µA
mA
Max analog sense
VSENSE output voltage
IOUT= 3A; VCSD= 0V
Analog sense output
VSENSEH(2) voltage in fault
VCC= 13V; RSENSE= 3.9KΩ
condition
5
8
V
Analog sense output
ISENSEH(2) current in fault
VCC= 13V; VSENSE= 5V
condition
9 mA
11/37
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| Páginas | Total 37 Páginas | |
| PDF Descargar | [ Datasheet VN5E025AJ-E.PDF ] | |
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