Analog, Mixed Signal and Power Management MC35XS3400 Quad 35 mOhm High Side Switch Overview Freescale Semiconductor’s third generation of its award-winning eXtreme Switch portfolio features devices tailored for automotive lighting applications. These high- power switches include the MC35XS3400 which is designed to drive automotive light sources, improve efficiency, reduce wire harness size and provide increased protection for longer bulb life. Featuring four MC35XS3400 Simplified Application Diagram VDD VDD VPWR VPWR VDD 35XS3400 VPWR VDD WAKE I/O SCLK CS MCU HS0 SCLK CS SI SO I/O SO RST I/O I/O IN0 IN1 I/O I/O IN2 IN3 A/D GND FS LOAD HS1 LOAD SI CSNS FSI low RDS(ON) MOSFETs (quad 35 mΩ), the MC35XS3400 can control four separate 28 W bulbs and/or LEDs. Programming, control and diagnostics are accomplished using a 16-bit SPI interface. Its output with selectable slew-rate improves electromagnetic compatibility (EMC) behavior. Additionally, each output has its own parallel input or SPI control for pulsewidth modulation (PWM) control if desired. The MC35XS3400 allows the user to program via the SPI the fault current trip levels and duration of acceptable lamp inrush. The device has fail-safe mode to provide Fail-safe functionality of the outputs in case of damaged MCU. HS2 LOAD HS3 GND MC35XS3400 Applications • Low-voltage automotive lighting LOAD Halogen bulbs Light-emitting diodes (LEDs) High beam Low beam Flashers MC35XS3400 Product Features • Four protected 35 mΩ high side switches (at 25 °C) • Operating voltage range of 6.0 to 20 V with standby current < 5.0 μA, extended mode from 4.0 to 28 V Selector Guide Part Number (for Tape and Reel, add an R2 suffix) MC35XS3400CHFK MC35XS3400DHFK Temp. Ranges Features Package -40 to +125˚C Four—35 mΩ high side switches 24-pin PQFN • 8.0 MHz 16-bit 3.3 V and 5.0 V SPI control and status reporting with daisy chain Development Tools capability Part Number Description KIT35XS3400EVBE Evaluation board Contact Freescale Sales • PWM module using external clock or calibratable internal oscillator with programmable outputs delay management • Smart over-current shutdown, severe short-circuit, over-temperature protections, with time limited autoretry, and Fail-safe mode, in case of MCU damage • Output OFF or ON open-load detection compliant to bulbs or LEDs (< 10 mA) and short to battery detection • Analog current feedback with selectable ratio and board temperature feedback . Documentation Document Number Title Description MC35XS3400 Quad High Side Switch (Quad 35 mΩ) Data Sheet SG1002 Analog, Mixed Signal and Power Management Selector Guide SG187 Automotive Selector Guide AN3740 Evaluation of Power Dissipation for the eXtreme Switch Devices Application Note AN2467 Power Quad Flat No-lead (PQFN) Package Application Note FK SUFFIX (Pb-FREE) 98ARL10596D 24-PIN PQFN Learn More: Freescale and the Freescale logo are trademarks or registered trademarks of Freescale Semiconductor, Inc. in the U.S. and other countries. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc. 2012 Document Number: MC35XS3400FS REV . 2.0 For more information about Freescale products, please visit www.freescale.com.