Analog, Mixed-Signal and Power Management MC17XSF500 Penta 17 mΩ High-Side Switch Target Applications Overview • Low-voltage exterior lighting The MC17XSF500 is the latest achievement in DC motor and lighting drivers. It belongs • Low-voltage industrial lighting to an expanding family to control and diagnose various types of loads, such as • Low-voltage automation systems incandescent lamps or light-emitting diodes (LEDs) with enhanced precision. It combines • Halogen lamps flexibility through daisy chainable SPI 5 MHz, extended digital and analog feedbacks, • Incandescent bulbs safety and robustness. • Light-emitting diodes (LEDs) • HID xenon ballasts • DC motors Output edge-shaping helps to improve electromagnetic performance. To avoid shutting off the device upon inrush current, while still being able to closely track the load current, a dynamic overcurrent threshold profile is utilized. Current of each channel can be sensed with a programmable sensing ratio. Whenever communication with the external microcontroller is lost, the device enters a fail operation mode—but remains operational, controllable and protected. This new generation of high-side switch products facilitates ECU design with its compatible MCU software and PCB footprint for each device variant. This product is packaged in a Pb-free, power-enhanced SOIC package with exposed pad. Simplified Application Drawing Freescale: A Leader in Analog Solutions Expanding on more than 30 years of innovation, Freescale is a leading provider Product Features and Benefits Features Scalable family of high-performance products that use SMARTMOS technology combining digital, power and standard analog functions. SPI interface Freescale supplies analog and power management ICs that are advancing the automotive, consumer, industrial and networking markets. Analog solutions Analog diagnostics interface with real-world signals to control Function Benefits • Compatible devices in terms of footprint and software • Flexible load management from high current (HID, 65 W lamps) to LEDs while keeping a 100% diagnostic coverage • Allows last-minute device choice in platforms for which the output load is not known or has to be flexible. Single hardware for multiple applications at a single engineering-development cost. • 5 V 16-bit 5 MHz SPI communication • Daisy chainable SPI control • Programming, output control and diagnostic reporting • Enables daisy chaining without resistor between MCU and device for MCU I/O and number of discrete reduction. BOM cost saving. • Accurate temperature (±5.0 °C), supply voltage sensing • Synchronous asynchronous current sensing with Advanced Current Mode • Software simplification in case of extensive load management • High-precision current sensing (down to 25 mA) with calibration procedure allowing diagnostic of both high-current loads or LEDs • Penta 7.0 mΩ high-side switch • Programmable dynamic threshold overcurrent protection and overtemperature protection • 30% module-size reduction and module-quality longevity. Allows a low power dissipation module design and very robust solution against repetitive overcurrent stress. • Protected output in fail-safe mode • Direct input control with unlimited autorestart feature •Safe, secure system • Individually programmable internal/external PWM clock signals with prescaler per channel • Selectable slew rate per output and multiphasing • 8-bit flexibility for duty cycle settings • Software design simplicity for ppm reduction and software development-time optimization. Optimized electromagnetic emission vs. switching power losses selection possible. and drive for complete embedded systems. Self-protected high-side switch Limp mode PWM capability EK SUFFIX (Pb-FREE) 32 SOICW-EP 98ASA00368D Development Part Number Description KIT17XS6500EVB Evaluation board, featuring the MC17XS6500 Performance Performance Typical values Outputs 5 RDS(on) at 25 ºC 17 mΩ Operating voltage 7–18 V Output overcurrent high protection 54.4 A PWM input control 400 kHz (Max) ESD ±2000 V Documentation Freescale Document Number Title Description MC17XSF500 Penta 17 mΩ High-Side Switch Data sheet SG1002 Automotive, Mixed-Signal and Power Management Selector guide SG200 Analog and Power Management Industrial Selector Guide Selector guide For more information, please visit freescale.com/analog Freescale and the Freescale logo are trademarks of Freescale Semiconductor, Inc., Reg. U.S. Pat. & Tm. Off. SMARTMOS is a trademark of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © 2013 Freescale Semiconductor, Inc. Document Number: MC17XSF500FS REV 1