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PDF VN5770AK-E Data sheet ( Hoja de datos )
| Número de pieza | VN5770AK-E | |
| Descripción | Quad smart power solid state relay | |
| Fabricantes | ST Microelectronics | |
| Logotipo |  |
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VN5770AK-E
Quad smart power solid state relay
for complete H bridge configurations
Features
Type
VN5770AK-E
RDS(on)
280mΩ(1)
IOUT
8.5A(2)
VCC
36V
1. Total resistance of one side in bridge configuration
2. Typical current limitation value
■ General features
– Inrush current management by active
power limitation on the high side switches
– Very low stand-by current
– Very low electromagnetic susceptibility
– In compliance with the 2002/95/EC
European directive
■ Protection
– High side drivers undervoltage shutdown
– Overvoltage clamp
– Output current limitation
– High and low side overtemperature
shutdown
– Short circuit protection
– ESD protection
■ Diagnostic functions
– Proportional load current sense
– Thermal shutdown indication on both the
high and low side switches
Description
The VN5770AK-E is a device formed by three
monolithic chips housed in a standard SO-28
package: a double high side and two low side
switches. The double high side is made using
STMicroelectronics VIPower™ M0-5 Technology,
while the low side switches are fully protected
SO-28
VIPower™ M0-3 OMNIFET II. This device is
suitable to drive a DC motor in a bridge
configuration as well as to be used as a quad
switch for any low voltage application.
The dual high side switches integrate built-in non-
latching thermal shutdown with thermal
hysteresis. An output current limiter protects the
device in overload condition. In the case of long
overload duration, the device limits the dissipated
power to a safe level up to thermal shut-down
intervention. An analog current sense pin delivers
a current proportional to the load current
(according to a known ratio) and indicates
overtemperature shutdown of the relevant high
side switch through a voltage flag.
The low side switches have built-in non-latching
thermal shutdown with thermal hysteresis, linear
current limitation and overvoltage clamping.
Fault feedback for overtemperature shutdown of
the low side switch is indicated by the relevant
input pin current consumption going up to the fault
sink current flag.
Applications
■ DC motor driving in full or half bridge
configuration
■ All types of resistive, inductive and capacitive
loads
Table 1.
Order codes
Package
SO-28
Tube
VN5770AK-E
Tape and Reel
VN5770AKTR-E
February 2007
Rev 2
1/31
www.st.com
31
1 page  
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VN5770AK-E
Block diagram and pin descriptions
1 Block diagram and pin descriptions
Figure 1. Block diagram
Vcc
GND
INPUT1
Vcc
clamp
Undervoltage
Clamp 1
Driver 1
INPUT2
Logic
Overtemp. 1
Overtemp. 2
Current limiter 1
Vds limiter 1
Power limitation
C.SENSE
INPUT3
K IDS1
IDS2
K
Gate
Control
Clamp 2
Driver 2
Current limiter 2
VDS limiter 2
Power limitation
Overvoltage
Clamp
INPUT4
Over
Temperature
Gate
Control
Linear
Current
Limiter
Overvoltage
Clamp
Over
Temperature
Linear
Current
Limiter
SOURCE1
SOURCE2
DRAIN3
SOURCE3
DRAIN4
SOURCE4
5/31
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VN5770AK-E
Electrical characteristics
Table 10. Current sense (8V<VCC<16V)
Symbol
Parameter
Test Conditions
ISENSE0
Analog sense
current
Max analog sense
VSENSE output voltage
IOUT=0A; VSENSE=0V;
VIN=0V; Tj=-40°C to 150°C
VIN=5V; Tj=-40°C to 150°C
IOUT=5A; RSENSE=3.9KΩ
VSENSEH
Analog sense output
voltage in
overtemperature
condition
VCC=13V; RSENSE=3.9KΩ
ISENSEH
Analog sense output
current in
overtemperature
condition
VCC=13V
Delay Response
tDSENSE2H time from rising
edge of INPUT pin
VSENSE<4V, 0.35A<Iout<5A
ISENSE=90% of ISENSE max (see
Figure 5.)
Delay Response
tDSENSE2L time from falling
edge of INPUT pin
VSENSE<4V, 0.35A<Iout<5A
ISENSE=10% of ISENSE max (see
Figure 5.)
Min. Typ. Max. Unit
0 1 µA
0 2 µA
5V
9V
8 mA
70 300 µs
100 250 µs
Figure 3. Switching time waveforms
VOUTn
80%
90%
dVOUT/dt(on)
VINn
td(on)
10%
td(off)
dVOUT/dt(off)
t
t
11/31
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| PDF Descargar | [ Datasheet VN5770AK-E.PDF ] | |
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