mc33811 Freescale Semiconductor, Inc, mc33811 Datasheet

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mc33811

Manufacturer Part Number
mc33811
Description
Solenoid Monitor Integrated Circuit Ic
Manufacturer
Freescale Semiconductor, Inc
Datasheet
Freescale Semiconductor
Product Preview
*This document contains certain information on a product under development. Free-
scale reserves the right to change or discontinue this product without notice
Solenoid Monitor Integrated
Circuit (IC)
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.
33811 ideal for powertrain solenoid monitoring applications.
Features
• 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
• Unique solenoid current profile detection circuitry
• Pb-free packaging designated by suffix code EG
© Freescale Semiconductor, Inc., 2007. All rights reserved.
The 33811 is a 5 channel Solenoid Monitor IC that is used to verify
These features, along with cost effective packaging, make the
V
BAT
PORTS
MCU
SCLK
MOSI
MISO
P00
P01
P02
P03
P04
P05
CS
Figure 1. 33811 Simplified Application Diagram
VDD
SOLENOID DRIVER
VPWR
VDD
VSPI
SI
SCLK
CS
SO
RESET
IN1
IN2
IN3
IN4
IN5
33811
D_GND
A_GND
SOLM1
SOLM2
SOLM3
SOLM4
SOLM5
OUT1
OUT2
OUT3
OUT4
OUT5
PCZ33811EG/R2
Device
ORDERING INFORMATION
V
EG SUFFIX (PB_FREE)
V
V
V
V
SOLENOID MONITOR
BAT
BAT
BAT
BAT
BAT
98ASB42567B
16-PIN SOICW
-40°C to 125°C
33811
Temperature
Document Number: MC33811
Range (T
SOLENOIDS
A
)
Rev. 2.0, 9/2007
16 SOICW
Package

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mc33811 Summary of contents

Page 1

... SCLK CS SO D_GND A_GND RESET SOLENOID DRIVER IN1 OUT1 IN2 OUT2 IN3 OUT3 IN4 OUT4 IN5 OUT5 Document Number: MC33811 Rev. 2.0, 9/2007 33811 SOLENOID MONITOR EG SUFFIX (PB_FREE) 98ASB42567B 16-PIN SOICW ORDERING INFORMATION Temperature Package Range ( -40°C to 125°C 16 SOICW SOLENOIDS V ...

Page 2

INTERNAL BLOCK DIAGRAM VPWR VDD D_GND VSPI RESET 15µA 15µA CS SCLK SO A_GND Figure 2. 33811 Simplified Internal Block Diagram 33811 2 INTERNAL BLOCK DIAGRAM VPWR, VDD, 5.0 V Oscillator and Clock Generator Waveform Detection Waveform ...

Page 3

Table 1. 33811 Pin Definitions A functional description of each pin can be found in the Functional Pin Description section beginning on Pin Number Pin Name Pin Function 1 VDD Power 2 D_GND Ground 3 SO Output 4 SI Input ...

Page 4

PIN CONNECTIONS Table 1. 33811 Pin Definitions (continued) A functional description of each pin can be found in the Functional Pin Description section beginning on Pin Number Pin Name Pin Function 12 SOLM3 Input 13 SOLM2 Input 14 SOLM1 Input ...

Page 5

Table 2. Maximum Ratings All voltages are with respect to ground unless otherwise noted. Exceeding these ratings may cause a malfunction or permanent damage to the device. Ratings ELECTRICAL RATINGS Supply Voltage (continuous) VPWR VDD VSPI Supply Voltage (transient) on ...

Page 6

ELECTRICAL CHARACTERISTICS STATIC ELECTRICAL CHARACTERISTICS STATIC ELECTRICAL CHARACTERISTICS Table 3. Static Electrical Characteristics Characteristics noted under conditions 7.0V ≤ V values noted reflect the approximate parameter means at T Characteristic POWER INPUT (VPWR, IPWR, IVDD, VDD, IDD) Analog Supply Voltage ...

Page 7

Table 3. Static Electrical Characteristics Characteristics noted under conditions 7.0V ≤ V values noted reflect the approximate parameter means at T Characteristic Normal Mode Input Logic Pull-down Current 0.8V to 5.0V (SI) CS, RESET Pull-up Current (CS, RESET = 0) ...

Page 8

ELECTRICAL CHARACTERISTICS DYNAMIC ELECTRICAL CHARACTERISTICS DYNAMIC ELECTRICAL CHARACTERISTICS Table 4. Dynamic Electrical Characteristics Characteristics noted under conditions 10.5V ≤ V values noted reflect the approximate parameter means at T Characteristic (10) SPI DIGITAL INTERFACE TIMING Required High State Duration on ...

Page 9

Microcontroller Shift Register CS 0 LEAD 0.7 V SCLK DD 0 SI(SU) SI(HOLD) 0 MSB IN 0 SO(EN) 0.7 V MSB OUT ...

Page 10

ELECTRICAL CHARACTERISTICS MICROCONTROLLER PARAMETRICS The 33811 device directly interfaces to a 3.3V or 5.0V micro controller unit (MCU) using 16 bit Serial Peripheral Interface (SPI) protocol. SPI serial clock frequencies up to 3.2MHz may be used when programming and reading ...

Page 11

ANALOG VOLTAGE SUPPLY (VPWR) The VPWR pin is battery input to the 33811 IC. The VPWR pin requires external reverse battery and transient protection. Maximum input voltage on VPWR is 15.5V for full operation. All IC analog current is provided ...

Page 12

FUNCTIONAL DESCRIPTION FUNCTIONAL INTERNAL BLOCK DESCRIPTION FUNCTIONAL INTERNAL BLOCK DESCRIPTION POWER SUPPLY AND OSCILLATOR The 33811 is designed to operate from 10.5V to 15.5V on the VPWR pin. The VPWR pin supplies power to the internal regulator which, in turn, ...

Page 13

FUNCTIONAL DEVICE OPERATION POWER SUPPLY The 33811 is designed to operate from 10.5V to 15.5V on the VPWR pin. The VPWR pin supplies power to the internal regulator which, in turn, supplies the analog circuit blocks. The VDD Supply is ...

Page 14

FUNCTIONAL DEVICE OPERATION OPERATIONAL MODES 3) Step 3 demonstrates an 8 bit SPI transfer. The same exchange is performed, however, only 8 SCLK pulses are issued and only 8 bits of data are exchanged. 4) When the transfer is complete, ...

Page 15

Analog Integrated Circuit Device Data Freescale Semiconductor Figure 8. Valid Solenoid Waveform FUNCTIONAL DEVICE OPERATION OPERATIONAL MODES 33811 15 ...

Page 16

PACKAGING PACKAGE DIMENSIONS For the most current package revision, visit www.freescale.com and perform a keyword search using the “98A” listed below. 33811 16 PACKAGING PACKAGE DIMENSIONS EG SUFFIX 16-PIN PLASTIC PACKAGE 98ASB42567B ISSUE F Analog Integrated Circuit Device Data Freescale ...

Page 17

REVISION DATE DESCRIPTION OF CHANGES • Initial Release 4/2007 1.0 • Removed Peak Package Reflow Temperature During Reflow (solder reflow) parameter from Maximum Ratings on page • Added notes 7/2007 • Updates to form and style. 2.0 Analog Integrated Circuit ...

Page 18

... Freescale Semiconductor Literature Distribution Center P.O. Box 5405 Denver, Colorado 80217 1-800-441-2447 or 303-675-2140 Fax: 303-675-2150 LDCForFreescaleSemiconductor@hibbertgroup.com MC33811 Rev. 2.0 9/2007 Information in this document is provided solely to enable system and software implementers to use Freescale Semiconductor products. There are no express or implied copyright licenses granted hereunder to design or fabricate any integrated circuits or integrated circuits based on the information in this document ...

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