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PDF VN5012AK-E Data sheet ( Hoja de datos )
| Número de pieza | VN5012AK-E | |
| Descripción | Single channel high side driver | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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VN5012AK-E
Single channel high side driver with analog current sense
for automotive applications
Features
Max supply voltage
Operating voltage range
Max On-State resistance (per ch.)
Current limitation (typ)
VCC
VCC
RON
ILIMH
Off state supply current (typ)
IS
1. Typical value with all loads connected
41V
4.5 to 36V
12 mΩ
65 A
2 µA(1)
■ General features
– Inrush current active management by
power limitation
– Very low stand-by current
– 3.0V CMOS compatible input
– Optimized electromagnetic emission
– Very low electromagnetic susceptibility
– In compliance with the 2002/95/EC
european directive
■ Diagnostic functions
– Proportional load current sense
– High current sense precision for wide range
currents
– Current sense disable
– Thermal shutdown indication
– Very low current sense leakage
■ Protections
– Undervoltage shut-down
– Overvoltage clamp
– Load current limitation
– Self limiting of fast thermal transients
– Protection against loss of ground and loss
of VCC
– Thermal shut down
– Reverse battery protection (see Figure 26)
Table 1. Device summary
PowerSSO-24
– Electrostatic discharge protection
Application
■ All types of resistive, inductive and capacitive
loads
Description
The VN5012AK-E is a monolithic device made
using STMicroelectronics VIPower M0-5
technology. It is intended for driving resistive or
inductive loads with one side connected to
ground. Active VCC pin voltage clamp protects the
device against low energy spikes (see ISO7637
transient compatibility table). This device
integrates an analog current sense which delivers
a current proportional to the load current
(according to a known ratio) when CS_DIS is
driven low or left open. When CS_DIS is driven
high, the CURRENT SENSE pin is in a high
impedance condition. Output current limitation
protects the device in overload condition. In case
of long overload duration, the device limits the
dissipated power to safe level up to thermal shut-
down intervention. Thermal shut-down with
automatic restart allows the device to recover
normal operation as soon as fault condition
disappears.
Package
PowerSSO-24
Tube
VN5012AK-E
Order codes
Tape & Reel
VN5012AKTR-E
August 2008
Rev 6
1/31
www.st.com
31
1 page  
VN5012AK-E
Block diagram anwdwpwi.nDadteasShceriept4tiUo.cnom
1 Block diagram and pin description
Figure 1. Block diagram
VCC
GND
INPUT
CS_DIS
VCC
CLAMP
LOGIC
UNDERVOLTAGE
DRIVER
PwCLAMP
ILIM
PwrLIM
VDSLIM
OVERTEMP.
IOUT
K
OUTPUT
CURRENT
SENSE
Table 2. Pin function
Name
Function
VCC
OUTPUT
Battery connection.
Power output.
GND
INPUT
CURRENT
SENSE1,2
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.
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VN5012AK-E
Electricwawlws.pDeactaifSihceaetti4oUn.csom
Table 10. Current sense (8V<VCC<16V)
Symbol
Parameter
Test conditions
Min. Typ. Max. Unit
K0 IOUT/ISENSE
K1 IOUT/ISENSE
dK1/K1(1)
Current sense ratio
drift
K2 IOUT/ISENSE
dK2/K2(1)
Current sense ratio
drift
K3 IOUT/ISENSE
dK3/K3(1)
Current sense ratio
drift
ISENSE0
Analog sense
leakage current
Openload On state
IOL current detection
threshold
IOUT=0.25A; VSENSE=0.5V;
VCSD=0V;
Tj= -40°C...150°C
IOUT=5A; VSENSE=0.5V;VCSD=0V;
Tj= -40°C...150°C
IOUT=5A; VSENSE=0.5V;VCSD=0V;
Tj= 25°C...150°C
IOUT=5A; VSENSE= 0.5V;
VCSD=0V;
TJ= -40 °C to 150 °C
IOUT=10A; VSENSE=4V;VCSD=0V;
Tj= -40°C...150°C
IOUT=10A; VSENSE=4V;VCSD=0V;
Tj= 25°C...150°C
IOUT=10 A; VSENSE= 4 V;
VCSD=0V;
TJ= -40 °C to 150 °C
IOUT=25A; VSENSE=4V;VCSD=0V;
Tj= -40°C...150°C
IOUT=25A; VSENSE=4V;VCSD=0V;
Tj= 25°C...150°C
IOUT=25 A; VSENSE= 4 V;
VCSD=0V;
TJ= -40 °C to 150 °C
IOUT=0A; VSENSE=0V;
VCSD=5V; VIN=0V; Tj=-40°C...150°C
VCSD=0V; VIN=5V; Tj=-40°C...150°C
3090
3590
3790
-8
4080
4160
-5
4420
4460
-4
0
0
IOUT= 2A; VSENSE= 0V;
VCSD= 5V; VIN=5V; Tj=-40°C...150°C
0
VIN = 5V, ISENSE= 5 µA
10
5080
4480
4480
4510
4510
4600
4600
7070
5370
5170
+8
4980
4860
+5
4780
4740
+4
1
2
1
45
Max analog sense
VSENSE output voltage
IOUT=15A; VCSD=0V
5
Analog sense
VSENSEH
output voltage in
overtemperature
condition
VCC=13V; RSENSE=2.2KΩ
9
%
%
%
µA
µA
µA
mA
V
V
ISENSEH
Analog sense
output current in
overtemperature
condition
VCC= 13V; VSENSE= 5V
8 mA
11/31
11 Page | ||
| Páginas | Total 31 Páginas | |
| PDF Descargar | [ Datasheet VN5012AK-E.PDF ] | |
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