Product Brief
BTS 5231-2GS
Smart High-Side Power Switch
Two Channels 140 mΩ
T H E B T S 5 2 3 1 - 2 G S is a dual channel high-side power switch (two Diagnostic Features
times 140 mΩ) in PG-DSO-14 package providing embedded protective functions. ■ Enhanced IntelliSense signal for each
channel
The enhanced IntelliSense pins IS1 and IS2 provide a sophisticated diagnostic ■ Enable function for diagnosis pins
feedback signal including current sense function and open load in OFF-state. (IS1 and IS2)
The diagnosis signals can be switched ON and OFF by the sense enable pin SEN. ■ Proportional load current sense signal
by current source
An integrated ground resistor as well as integrated resistors at each input pin ■ High accuracy of current sense signal at
(IN1, IN2, SEN) reduce external components to a minimum. wide load current range
■ Open load detection in ON-state by
The power transistor is built by a N-channel vertical power MOSFET with charge load current sense
pump. The inputs are ground referenced CMOS compatible. ■ Over load (current limitation) diagnosis
The device is monolithically integrated in Smart SIPMOS technology. in ON-state by voltage source signal
■ Latched over temperature diagnosis in
Applications ON-state by voltage source signal
■ 12 V grounded high-side loads, µC compatible with diagnostic feedback ■ Open load detection in OFF-state by
■ Suitable for automotive and industrial applications voltage source signal
■ All types of resistive, inductive and capacitive loads
■ Suitable for loads with high inrush currents, such as lamps Integrated Protection Features
■ Suitable for loads with low currents such as LEDs ■ Reverse battery
■ Replaces electromechanical relays, fuses and discrete circuits ■ Over voltage
■ Short circuit
Basic Features ■ Over load
■ Very low standby current ■ Loss of ground
■ 3.3 V and 5 V compatible logic pins ■ Electrostatic discharge (ESD)
■ Improved electromagnetic compatibility (EMC) ■ Multi step current limitation
■ Stable behavior at under voltage ■ Thermal shutdown with restart at
■ Logic ground independent from load ground reduced current limitation
■ Load turn-off while logic ground is disconnected
■ Optimized inverse current capability
■ Green Product (RoHS compliant)
■ AEC qualified
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Automotive Power
Product Brief
Block Diagram
Channel 1 Vbb
Load Current Clamp for
Sense Inductive Load
Internal Gate Control &
Power Charge Pump
Supply Multi Step
Logic Open Load Load Current OUT1
Detection Limitation
IN1
ESD Temperature Sensor
IS1 Protection
SEN Over Load Detection
Channel 2
IN2 Control and Protection Circuit
IS2 Equivalent to Channel 1
RGND OUT2
GND
Product Summary
Type Description Package
BTS 5231-2GS 2 x 140 mΩ PG-DSO-14
Parameter Value Unit
Operating voltage Vbb(on) 4.5 ... 28 V
Over voltage protection Vbb(AZ) 41 V
ON-state resistance RDS(0N) 140 mΩ
Nominal load current (one channel active) IL(nom) 1.8 A
Current limitation IL(LIM) 8A
Current limitation repetitive IL(SCr) 3A
Standby current for whole device with load Ibb(OFF) 2.5 µA
Application Example
10 W Bulb Vbb GND
(e.g. Puddle Lamp) LED Cluster
(e.g. Side Marker)
OUT1 BTS 5231-2GS OUT2
IN1 IS1 SEN IS2 IN2
µC
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Ordering No. B112-H9067-X-X-7600
Published by Infineon Technologies AG NB07-1169