BTS737S3 Datasheet, PDF (1/15 Pages) Infineon Technologies AG – Smart High-Side Power Switch Four Channels: 4 x 35mΩ Advanced Current Sense

Datasheet BTS737S3
Smart High-Side Power Switch
Four Channels: 4 x 35mΩ
Advanced Current Sense
Product Summary
Package
Operating Voltage
V_bb(on)
Active channels one
On-state Resistance
Nominal load current
R_ON
I_L(NOM)
35mΩ
5.4A
Current limitation
I_L(SCr)
40A
5.0 ...40V
four parallel
9mΩ
11.1A
40A
P-DSO-28
General Description
• 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
• 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
• Very low standby current
• Improved electromagnetic compatibility (EMC)
• CMOS compatible input
• Stable behaviour at undervoltage
• Wide operating voltage range
Protection Functions
• 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)
Diagnostic Function
• Proportional load current sense (with defined fault signal
during thermal shutdown and current limit)
Block Diagram
Vbb
IN1
IS1
IS2
IN2
Logic
Channel 1
Channel 2
IN3
IS3
IS4
IN4
Logic
Channel 3
Channel 4
GND
Load 1
Load 2
Load 3
Load 4
Infineon technologies
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2004-Feb-19