Datasheet BTS737S3
Smart High-Side Power Switch
Four Channels: 4 x 35mΩ
Advanced Current Sense
Product Summary
Operating Voltage
V
bb(on)
Active channels one
On-state Resistance
R
ON
35mΩ
Nominal load current
I
L(NOM)
5.4A
Current limitation
I
L(SCr)
40A
5.0 ...40V
four parallel
9mΩ
11.1A
40A
Package
P-DSO-28
General Description
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N channel vertical power MOSFET with charge pump, ground referenced CMOS compatible input and
diagnostic feedback, monolithically integrated in Smart SIPMOS
technology.
Providing embedded protective functions
Applications
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µC compatible high-side power switch with diagnostic feedback for 12V and 24V grounded loads
All types of resistive and capacitve loads
Most suitable for loads with high inrush currents, so as lamps
Replaces electromechanical relays, fuses and discrete circuits
Basic Functions
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Very low standby current
Improved electromagnetic compatibility (EMC)
CMOS compatible input
Stable behaviour at undervoltage
Wide operating voltage range
Protection Functions
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Short circuit protection
Overload protection
Current limitation
Thermal shutdown
Reverse battery protection with external resistor
Overvoltage protection with external resistor (incl. load
dump)
Loss of ground protection
Electrostatic discharge protection (ESD)
Block Diagram
Vbb
IN1
IS1
IS2
IN2
Load 2
IN3
IS3
IS4
IN4
Logic
Channel 3
Channel 4
Logic
Channel 1
Channel 2
Load 1
Diagnostic Function
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Proportional load current sense (with defined fault signal
during thermal shutdown and current limit)
Load 3
GND
Load 4
Infineon technologies
1 of 15
2004-Feb-19
INFINEON [ INFINEON TECHNOLOGIES AG ]
