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MC33813 bảng dữ liệu(PDF) 1 Page - Freescale Semiconductor, Inc

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Giải thích chi tiết về linh kiện  One Cylinder Small Engine Control IC
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Document Number: MC33813
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.
One Cylinder Small Engine
Control IC
The 33813 is an engine control analog power IC intended for one cylinder
motorcycle and other small engine control applications. The IC consists of
five integrated low side drivers, two pre-drivers, a Variable Reluctance
Sensor (VRS) input circuit, a voltage pre-regulator using an external pass
transistor, and two 5.0 volt internal regulators, one for the microcontroller
unit (MCU) VCC supply and the other 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 five low side drivers are intended for driving a fuel
injector, a lamp, two relays or other loads, and a tachometer. The pre-
driver is intended to drive IGBT or MOSFET transistors to control ignition
coils, and/or a HEGO heater. The device is packaged in a 48 pin LQFP-
EP with an exposed pad.
Features:
• Operates over a supply voltage range of 4.5 V
 VPWR  36 V
• Logic stability guaranteed down to 2.5 V
• One fuel injector driver - typical of 1.3 A
• One ignition IGBT or general purpose gate pre-driver
• 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. 33813 Simplified Application Diagram
33813
98ASA00173D
AE SUFFIX (PB-FREE)
48-PIN LQFP
-EP
Applications
Small Engine Control for:
• Lawn Mowers
• Motor Scooters
• Small Motorcycles
• Lawn Trimmers
• Snow Blowers
• Chain Saws
• Gasoline-driven Electrical Generators
• Outboard Motors
ONE CYLINDER SMALL ENGINE
CONTROL IC
VPWR
SPI
VRSOUT
MRX
MC33813
SPI
VBAT
O2HOUT
LAMPOUT
MCU
RESETB
INJOUT1
ROUT1
Relay 1
MIL
O2 Heater
VBAT
VBAT
Injector
RESETB
Crankshaft VRS
VRSP
VRSN
VCC
MTX
INJIN1
O2HIN
GPIO
KEYSW
ROUT2
VPPSENS
GND
+5.0 V
IGNIN1
IGNOUT1
ISO9141
ISO9141
IGNFB1
O2HFB
VPPREF
4
VBAT
Keyswitch
Relay 2
VPROT
5.0 V Sensor Supply
GPIO
GPIO
GPIO
GPIO
GPIO
VBAT
(Power)
(Fuel Pump)
TACHOUT
TACHOMETER
VCC
BATSW
IGNSENSP
IGNSENSN
O2HSENSP
O2HSENSN
GPIO
GPIO
RIN1
RIN2
GPIO


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