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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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PC33814AE 데이터시트(PDF) 1 Page - Freescale Semiconductor, Inc |
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PC33814AE 데이터시트(HTML) 1 Page - Freescale Semiconductor, Inc |
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1 / 50 page  Document Number: MC33814 Rev. 1.0, 8/2012 Freescale Semiconductor Product Preview © Freescale Semiconductor, Inc., 2012. All rights reserved. *This document contains certain information on a new product. Specifications and information herein are subject to change without notice. Two Cylinder Small Engine Control IC The 33814 is an engine control analog power IC intended for two cylinder motorcycle and other small engine control applications. The IC consists of six integrated low side drivers, three pre-drivers, a Variable Reluctance Sensor (VRS) input circuit, a voltage pre-regulator using an external pass transistor, and two 5 volt internal regulators, one for the microcontroller unit (MCU) VCC supply, and one for use as a protected sensor supply. Also included is an MCU reset control circuit with watchdog, an ISO 9141 K-Line interface for diagnostic communication and a Serial Peripheral Interface (SPI). The six low side drivers are intended for driving two fuel injectors, a lamp, two relays or other loads, and a tachometer. The pre- drivers are intended to drive IGBT or MOSFET transistors to control ignition coils, and a HEGO heater. The device is packaged in a 48 pin LQFP-EP with an exposed pad. Features: • Operates over supply voltage range of 4.5 V VPWR 36 V • Logic stability guaranteed down to 2.5 V • Two fuel injector drivers - typical of 1.3 A each • Two Ignition IGBT or general purpose gate pre-drivers • One O2 sensor (HEGO) heater general purpose gate pre-driver • Relay 1 driver, typically 2.0 A, can be used for fuel pump control • Relay 2 driver, typically 1.0 A, can be used as power relay control • Lamp driver, typically 1.0 A can also be used to drive an LED •VPROT protected sensor supply tracks VCC +5.0 V regulator • MCU reset generator - system integrity monitor (watchdog) •VPP pre-regulator provides power for VCC and VPROT regulators • Independent fault protection with all faults reported via the SPI • ISO 9141 K-line interface for communicating diagnostic messages • Start-up / shut-down control and power sequence logic • Interfaces directly to MCU using a 5.0 V SPI and logic I/O • Differential / single-ended VRS conditioning circuit with auto/manual selected thresholds and filter times with digital and tachometer outputs . Figure 1. 33814 Simplified Application Diagram 98ASA00173D AE SUFFIX (PB-FREE) 48-PIN LQFP-EP TWO CYLINDER SMALL ENGINE CONTROL IC 33814 Applications Small Engine Control for: • Lawn Mowers • Motor Scooters • Small Motorcycles • Lawn Trimmers • Snow Blowers •Chain Saws • Gasoline-driven Electrical Generators • Outboard Motors VPWR SPI VRSOUT MRX MC33814 SPI VBAT O2HOUT LAMPOUT MCU RESETB INJOUT1 ROUT1 Relay 1 MIL O2 Heater VBAT VBAT INJOUT2 Injectors RESETB Crankshaft VRS VRSP VRSN VCC MTX INJIN1 INJIN2 O2HIN GPIO KEYSW ROUT2 VPPSENS GND +5.0 V IGNIN1 IGNIN2 IGNOUT1 IGNOUT2 ISO9141 ISO9141 IGNFB1 O2HFB IGNFB2 VPPREF 4 VBAT Keyswitch Relay 2 VPROT 5.0 V Sensor Supply GPIO GPIO GPIO GPIO GPIO GPIO GPIO VBAT VBAT (Power) (Fuel Pump) TACHOUT TACHOMETER VCC BATSW IGNSENSP IGNSENSN O2HSENSP O2HSENSN GPIO GPIO RIN1 RIN2 GPIO |
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