Product Brief

BTS 5235-2G/L
Smart High-Side Power Switch
Two Channels 60 mΩ




    T H E B T S 5 2 3 5 - 2 G / L is a dual channel high-side power switch          Diagnostic Features
(60 mΩ per channel) in PG-DSO-20 or in PG-DSO-12 power package providing            ■ Enhanced IntelliSense signal for each

embedded protective functions.                                                        channel
                                                                                    ■ Enable function for diagnosis pins

The enhanced IntelliSense pins IS1 and IS2 provide a sophisticated diagnostic         (IS1 and IS2)
feedback signal including current sense function, over load and over temperature    ■ Proportional load current sense signal

alerts in ON-state and open load alert in OFF-state. The diagnosis signals can be     by current source
switched ON and OFF by the sense enable pin SEN.                                    ■ High accuracy of current sense signal at

                                                                                      wide load current range
An integrated ground resistor as well as integrated resistors at each input pin     ■ Open load detection in ON-state by

(IN1, IN2, SEN) reduce external components to a minimum.                              load current sense
                                                                                    ■ Over load (current limitation) diagnosis

The power transistor is built by a N-channel vertical power MOSFET with charge        in ON-state by voltage source signal
pump. The inputs are ground referenced CMOS compatible. The device is               ■ Latched over temperature diagnosis in

monolithically integrated in Smart SIPMOS technology.                                 ON-state by voltage source signal
                                                                                    ■ Open load detection in OFF-state by

Applications                                                                          voltage source signal
■ 12 V grounded high-side loads, µC compatible with diagnostic feedback

■ Suitable for automotive and industrial applications                               Integrated Protection Features
■ All types of resistive, inductive and capacitive loads                            ■ Reverse battery
■ Suitable for loads with high inrush currents, such as lamps                       ■ Over voltage

■ Suitable for loads with low currents such as LEDs                                 ■ Short circuit

■ Replaces electromechanical relays, fuses and discrete circuits                    ■ Over load

                                                                                    ■ Loss of ground

Basic Features                                                                      ■ Electrostatic discharge (ESD)

■ Very low standby current                                                          ■ Multi step current limitation

■ 3.3 V and 5 V compatible logic pins                                               ■ Thermal shutdown with restart at

■ Improved electromagnetic compatibility (EMC)                                        reduced current limitation
■ Stable behavior at under voltage

■ Logic ground independent from load ground

■ 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 5235-2G 2 x 60 mΩ PG-DSO-20 BTS 5235-2L 2 x 60 mΩ PG-DSO-12 Parameter Value Unit Operating voltage Vbb(on) 4.5 ... 28 V Over voltage protection Vbb(AZ) 41 V ON-state resistance RDS(0N) 60 mΩ Nominal load current (one channel active) IL(nom) 3.5 A (3.3 A BTS 5235-2G) Current limitation IL(LIM) 23 A Current limitation repetitive IL(SCr) 6A Standby current for whole device with load Ibb(OFF) 2.5 µA Application Example 27 W Bulb Vbb GND (e.g. Indicator) LED Cluster (e.g. Taillight) OUT1 BTS 5235-2L/G OUT2 IN1 IS1 SEN IS2 IN2 µC How to reach us: Legal Disclaimer Warnings http://www.infineon.com The information given in this Product Brief shall in no event be Due to technical requirements, components may contain regarded as a guarantee of conditions or characteristics. With dangerous substances. For information on the types in question, Published by respect to any examples or hints given herein, any typical values please contact the nearest Infineon Technologies Office. Infineon Technologies AG stated herein and/or any information regarding the application of 81726 Munich, Germany Infineon Technologies components may be used in life-support the device, Infineon Technologies hereby disclaims any and all devices or systems only with the express written approval of © 2007 Infineon Technologies AG warranties and liabilities of any kind, including without limitation, Infineon Technologies, if a failure of such components can All Rights Reserved. warranties of non-infringement of intellectual property rights of reasonably be expected to cause the failure of that life-support any third party. device or system or to affect the safety or effectiveness of that device or system. Life support devices or systems are intended Information to be implanted in the human body or to support and/or main- For further information on technology, delivery terms and tain and sustain and/or protect human life. If they fail, it is conditions and prices, please contact the nearest reasonable to assume that the health of the user or other Infineon Technologies Office (www.infineon.com). persons may be endangered. Ordering No. B112-H9068-X-X-7600 Published by Infineon Technologies AG NB07-1169