Analog, Mixed Signal and Power Management MC33910 LIN System Basis Chip with High Side Drivers Applications MC33910 Simplified Application Drawing • Window Lift • Sunroof • Steering wheel • Climate Control • Seat Position 33910 VBAT VSENSE HS1 VS1 VS2 Overview Two 50 mA high side switches with optional pulse-width modulated (PWM) are implemented to drive small loads. One high voltage input is available for use in contact monitoring, or as external wake-up input. This input can be used as high voltage Analog Input. The voltage on this pin is divided by a selectable ratio and available via an analog multiplexer. L1 VDD PWMIN ADOUT0 MCU MOSI MISO SCLK CS RXD TXD IRQ RST LIN HVDD LGND PGND AGND The 33910G5 is a Serial Peripheral Interface (SPI) controlled System Basis Chip (SBC), combining many frequently used functions in an MCU based system, plus a Local Interconnect Network (LIN) transceiver. The 33910G5 has a 5.0 V, 50 mA low dropout regulator with full protection and reporting features. The device provides full SPI readable diagnostics and a selectable timing watchdog for detecting errant operation. The LIN Protocol Specification 2.0 and 2.1 compliant LIN transceiver has waveshaping circuitry that can be disabled for higher data rates. The LIN Physical Layer included inside the 33910G5 is also compliant with the SAEJ2602 Rev. 2, protocol specification approved at many car OEMs. HS2 WDCONF LIN INTERFACE Features Parametric Table • Full-duplex SPI interface at frequencies up to 4.0 MHz Part Number • LIN transceiver capable of up to 100 kbps with wave shaping • Two 50 mA high side switches • One high voltage analog/logic Input • Configurable window watchdog • 5.0 V low drop regulator with fault detection and low voltage reset (LVR) circuitry • Switched/protected 5.0 V output (used for Hall sensors) Max Input Voltage MC33910G5AC 40 V MC34910G5AC Output Current Internally Limited (thermal protection) Temperature Range Package -40°C to 125°C 32 LQFP -40°C to 85°C Development Tools Part Number Description KIT33912G5DGEVME Easy to use kit that includes a friendly graphical interface, an MC33912G5EVB, and a USB to SPI adaptor. Documentation Document Number Title Description Questions MC33910 Data Sheet Presents the specifications for the product • Q: What are the 33910G5 key functions? SG1002 Selector Guide Analog and power management device comparison SG187 Selector Guide Automotive device comparison • A: The device integrates a 5.0 V, 50 mA voltage regulator, a SPI interface for diagnostics and low power management, a LIN module, two High Sides, and one Wake-up input. • Q: What are the key features? • A: The 33910G5 offers a configurable window watchdog, a low power mode with cyclic wake-up feature, and a selectable LIN slew rate. The high sides have PWM capability up to 10 kHz, and overtemperature and current limitation protection. The device allows the monitoring of the battery voltage, wake-up pins voltage, and the die temperature. Benefits • Reduced usage of external components due to the high EMI and ESD performance • Very low emissive device • Official release at many car OEMs • Internal 5.0 V regulator to supply microcontroller • Fail Safe protection • Low Power Management to minimize the battery discharge Freescale Semiconductor is a leading provider for over 25 years of highperformance products using SMARTMOS™ technology that combines digital, power and standard analog functions. The company supplies analog and power management ICs for the automotive, consumer, networking and industrial markets. Freescale’s analog and power ICs complement our broad portfolio of micro controllers, microprocessors, ZigBee® technology, digital signal processors, sensors, with development tools and support to provide system solutions to customers. • Q: What is the compliancy of the device? • A: The product is LIN2.1 and SAEJ2602-2 compliant. • Q: What are the EMC performances of the device? • A: The 33910G5 successfully passes the "Common EMC requirements on LIN interfaces" specification defined by Audi, BMW, Daimler, Porsche, and Volkswagen. The LIN module shows a high robustness against ESD-61000-4-2 (±11kV) without a bus capacitor, and a very low level in emission (50 dBμV max at low frequency). Learn More: For current information about Freescale products, please visit www.freescale.com. Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc., 2009 All rights reserved. Document Number: MC33910FS, Rev. 1.0