Analog, Mixed Signal and Power Management Fact Sheet MC33810 Eight Channel Ignition and Injector Driver Applications MC33810 Simplified Application Drawing Engine control applications for: • • • • • • Automobiles Motorcycles Industrial engines Generators Marine systems Recreational vehicles VDD Every new car that is produced requires an ignition and injector control module. Freescale’s eight channel ignition and injector driver integrated circuit (IC) is one of the major components for this module. The MC33810 is one of the first combinational ICs to offer both injection and ignition spark control in one tiny package. This solution significantly reduces the number of parts in a modern engine control unit, thus reducing the size, inventory costs and the complexity of the engine controller. The end result is a decrease in manufacturing costs, while helping to protect against common failure conditions for reliability. The MC33810 is a four channel low side driver and a four channel Insulated Gate Bipolar Transistor/Metal Oxide Semiconductor Field Effect Transistor (IGBT/MOSFET) pre-driver. The low side drivers are designed to drive fuel injectors directly. The pre-drivers can drive IGBTs to drive individual ignition spark coils or serve as general purpose MOSFET predrivers with PWM capability. The MC33810 provides an interface between the MCU and the ignition and injection functions of a typical four cylinder gasoline engine. It can be used in applications such as automobiles, motorcycles, industrial engines, generators, marine and other recreational vehicles. VPWR VDD Overview MCU VBAT 33810 VBAT MOSI SI SCLK SCLK CS CS MISO SO ETPU DIN0 OUT0 OUT3 FB0 GD0 FB1 GIN0 FB2 GIN3 GD2 ETPU NOMI ETPU MAXI VBAT GD1 ETPU SPKDUR VBAT GND ETPU OUT EN VBAT OUT2 DIN3 GPIO VBAT OUT1 ETPU ETPU VBAT VBAT VBAT FB3 GD3 RSP RSN Performance Typical Values Low side outputs (Injectopr) 4 IGBT/General Purpose FET Driver 4 Low side RDSON max. 0.2 Operating voltage 4.5 to 36 V Control/communication SPI and parallel Features • Four injector low side drivers • Pre-drivers with three different modes: •Ignition •General purpose gate drive •Ten cylinders • Ignition current and spark detection with programmable thresholds • MCU SPI and parallel interface • Power supply/oscillator/band gap reference/POR • Diagnostic and error detection logic • Self protection for: •Shorts to battery •Overcurrent •Overtemperature • Low power (30 μA) “sleep mode” Benefits • Highly integrated solution minimizes need for additional external discrete components • Reduced parts count • Reduced manufacturing and test cost • Reduced current consumption lowers battery drain during key off • Small footprint, reduces printed circuit board area • Simple MCU interface • Helps to protect against common failure conditions Protection Protection Detect Limiting Shutdown VPWR Overvoltage VPWR Undervoltage Coil Overcurrent Output SC Open Load Overtemperature Status Reporting \ Ordering Information Device MCZ33810EK/R2 Temperature range (TA) Package -40 °C TA 125 °C 32 SOICW-EP Development Tools Part Number Description KIT33810EKEVME Evaluation board to demonstrate the key features of MC33810 Documentation Document Number Title Description MC33810 Data Sheet Eight Channel Ignition and Injector Driver SG1002 Selector Guide Analog Product Selector Guide SG187 Selector Guide Automotive Product Selector Guide AN2409 Application Note Small Outline Integrated Circuit - Fine Pitch Package (SOIC) Questions • What number of cylinders need to be controlled? • What is the current/power requirement of the injectors? • What type of driver is to be used with the four predrivers, IGBT or MOSFET? • What is the required input control method for each load, parallel or serial? • What type of fault detection and annunciation is required? • Do any of the loads require Pulse Width Modulation (PWM}? • Is overlapping dwell times a requirement? • Are there any specific overcurrent requirements for each load? • For each load is shutdown a requirement for overvoltage, overcurrent or overtemperature? EK SUFFIX (Pb-FREE) 98ASA10774D 32 PIN SOICW EP 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., 2009-2013. All rights reserved. Document Number: MC33810FS, Rev 3.0