VN5770AK-E
Quad smart power solid state relay
for complete H-bridge configurations
Features
Type
RDS(on)
IOUT
VCC
VN5770AK-E
280m:(1)
8.5A(2)
36V
2. Typical current limitation value
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General features
– Inrush current management by active
power limitation on the high-side switches
– Very low standby 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
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Diagnostic functions
– Proportional load current sense
– Thermal shutdown indication on both the
high and low-side switches
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Description
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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
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.
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The dual high-side switches integrate built-in nonlatching thermal shutdown with thermal
hysteresis. An output current limiter protects the
device in overload condition. In 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 highside 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.
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DC motor driving in full or half bridge
configuration
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All types of resistive, inductive and capacitive
loads
February 2012
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SO-28
1. Total resistance of one side in bridge configuration
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.
Doc ID 13228 Rev 6
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www.st.com
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Contents
VN5770AK-E
Contents
1
Block diagram and pin descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.1
3
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4
Electrical characteristics for dual high-side switch . . . . . . . . . . . . . . . . . . . 9
3.2
Electrical characteristics curves for dual high-side switch . . . . . . . . . . . . 13
3.3
Electrical characteristics for low-side switches . . . . . . . . . . . . . . . . . . . . . 15
3.4
Electrical characteristics for low-side switches . . . . . . . . . . . . . . . . . . . . . 17
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Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5
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Maximum demagnetization energy (VCC = 13.5V) . . . . . . . . . . . . . . . . . . 23
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Package and thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5.1
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SO-28 thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
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Package and packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
6.1
ECOPACK®
6.2
SO-28 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
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6.3
SO-28 packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
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3.1
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8
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Doc ID 13228 Rev 6
VN5770AK-E
List of tables
List of tables
Table 1.
Table 2.
Table 3.
Table 4.
Table 5.
Table 6.
Table 7.
Table 8.
Table 9.
Table 10.
Table 11.
Table 12.
Table 13.
Table 14.
Table 15.
Table 16.
Table 17.
Table 18.
Table 19.
Table 20.
Table 21.
Table 22.
Table 23.
Table 24.
Pin descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Dual high-side switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Low-side switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Power section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Switching (VCC = 13V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Logic input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Protection and diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Current sense (8V
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