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33812_10

更新时间: 2022-05-13 19:01:08
品牌 Logo 应用领域
飞思卡尔 - FREESCALE 驱动
页数 文件大小 规格书
25页 510K
描述
Multifunctional Ignition and Injector Driver

33812_10 数据手册

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Document Number: MC33812  
Rev. 5.0, 7/2010  
Freescale Semiconductor  
Advance Information  
Multifunctional Ignition and  
Injector Driver  
33812  
The 33812 is an engine control analog power IC intended for  
motorcycle and other single/dual cylinder small engine control  
applications. The IC consists of three integrated low side drivers, one  
pre-driver, a +5.0 V, voltage pre-regulator, an MCU watchdog circuit,  
an ISO 9141 K-Line interface, and a parallel interface for MCU  
communication. The three low side drivers are provided for driving a  
fuel injector, a lamp or LED, and a relay or other load. The pre-driver  
is intended to drive either an Insulated Gate Bipolar Transistor (IGBT)  
or a bipolar Darlington transistor to control an ignition coil.  
SMALL ENGINE CONTROL IC  
Features:  
EK Pb-FREE SUFFIX  
98ASA10556D  
32 Pin SOICW EP  
• Designed to operate over the range of ~4.7 V VPWR 36 V  
• Fuel Injector driver - Current Limit - 4.0 A Typical  
• Ignition pre-driver can drive IGBT or Darlington bipolar junction  
transistors  
ORDERING INFORMATION  
Temperature  
• Ignition pre-driver has independent high and low side outputs  
• Relay driver - Current Limit - 4.0 A Typical  
• Lamp driver- Current Limit - 1.5 A Typical  
Device  
Package  
Range (T )  
A
• All external outputs protected against short to battery, over-current  
• Ignition and other drivers protected against over-temperature  
• Interfaces directly to MCU Using 5.0 V parallel interface  
• VCC voltage pre-regulator provides +5.0 V power for the MCU  
• MCU Power On RESET generator  
MCZ33812EK/R2  
-40° to 125°C  
32 SOICW-EP  
*MCZ33812AEK/R2  
*Note: AEC qualified for automotive applications  
• MCU watchdog timer circuit with parallel refresh/time setting line  
• Independent fault annunciation outputs for ignition, injector and relay drivers  
• ISO-9141 K-Line transceiver for communicating diagnostic messages  
• Pb-free packaging designated by suffix code EK  
33812  
VBAT  
VBAT  
VBAT  
+5 V  
MIL  
VPWR  
LAMPOUT  
PNP  
RELAY OR  
OTHER LOAD  
VCCREF  
VCCSENS  
LAMPIN  
RIN  
ROUT  
VCC  
INJECTOR  
VBAT  
VPWR  
VBAT  
GPIO  
GPIO  
INJOUT  
+5 V  
RESET  
RESET  
GPIO  
IGNSUP  
IGNFB  
WDRFSH  
INJIN  
GPIO  
GPIO  
MCU  
IGNOUTH  
IGNOUTL  
INJFLT  
GPIO  
IGNIN  
(IGBT DRIVER SHOWN)  
IGNFLT  
RELFLT  
MRX  
GPIO  
GPIO  
RXD  
TXD  
MTX  
TM_EN, TEST2  
WD_INH  
PGND1,2  
DGND  
ISO9141  
Note: Surge Voltage protection recommended on VPWR  
ISO9141  
Figure 1. 33812 Simplified Application Diagram  
* This document contains certain information on a new product.  
Specifications and information herein are subject to change without notice.  
© Freescale Semiconductor, Inc., 2010. All rights reserved.  

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