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Freescale Semiconductor
Advance Information
Solenoid Monitor Integrated
Circuit (IC)
The 33811 is a 5 channel Solenoid Monitor IC that is used to verify
proper electrical and mechanical solenoid operation. The IC contains
five solenoid driver voltage monitoring stages and a serial peripheral
interface (SPI) for fault communication and setup. The IC has the
ability to determine the correct movement of solenoid armatures by
analyzing the variation in the voltage profile, across the solenoid
driver MOSFET, which represents the actual solenoid current profile.
These features, along with cost effective packaging, make the
33811 ideal for powertrain solenoid monitoring applications.
Features
Document Number: MC33811
Rev. 3, 8/2008
33811
SOLENOID MONITOR
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Typical operating voltage range, 10.5 < VPWR < 15.5 volts
Interfaces to 3.3 and 5 volt microprocessors via SPI protocol
Reset pin to initialize all 5 fault outputs
Internal voltage regulator
Internal oscillator
EG SUFFIX (PB_FREE)
98ASB42567B
16-PIN SOICW
ORDERING INFORMATION
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Unique solenoid current profile detection circuitry
Pb-free packaging designated by suffix code EG
Device
MCZ33811EG/R2
Temperature
Range (T A )
-40°C to 125°C
Package
16 SOICW
33811
V BAT
VDD
VPWR
MCU
VDD
VSPI
SOLM1
SOLM2
SOLM3
MOSI
SCLK
CS
MISO
SI
SCLK
CS
SO
SOLM4
SOLM5
D_GND
P00
RESET
A_GND
V BAT
SOLENOIDS
SOLENOID DRIVER
PORTS
P01
P02
P03
P04
P05
IN1
IN2
IN3
IN4
IN5
OUT1
OUT2
OUT3
OUT4
OUT5
V BAT
V BAT
V BAT
V BAT
Figure 1. 33811 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., 2007. All rights reserved.
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相关PDF资料
KIT33812ECUEVME KIT DESIGN FOR 33812/S12P
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KIT33879AEKEVBE BOARD EVALUATION FOR MC33879
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KIT33887EKEVBE BOARD EVALUATION FOR MC33887
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