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PDF 33811 Data sheet ( Hoja de datos )
| Número de pieza | 33811 | |
| Descripción | Solenoid Monitor Integrated Circuit | |
| Fabricantes | Freescale Semiconductor | |
| Logotipo |  |
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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
• 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
Document Number: MC33811
Rev. 3, 8/2008
33811
SOLENOID MONITOR
EG SUFFIX (PB_FREE)
98ASB42567B
16-PIN SOICW
ORDERING INFORMATION
Device
MCZ33811EG/R2
Temperature
Range (TA)
-40°C to 125°C
Package
16 SOICW
VBAT
MCU
MOSI
SCLK
CS
MISO
P00
PORTS P01
P02
P03
P04
P05
VDD
33811
VPWR
VDD
VSPI
SI
SCLK
CS
SO
RESET
SOLM1
SOLM2
SOLM3
SOLM4
SOLM5
D_GND
A_GND
SOLENOID DRIVER
IN1 OUT1
VBAT
SOLENOIDS
VBAT
IN2 OUT2
VBAT
IN3 OUT3
IN4 OUT4
IN5 OUT5
VBAT
VBAT
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.
1 page  
ELECTRICAL CHARACTERISTICS
MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
MAXIMUM RATINGS
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
Symbol
Value
Unit
ELECTRICAL RATINGS
Supply Voltage (continuous)
VPWR
VDD
VSPI
Supply Voltage (transient) on VPWR
CS, SI, SO, SCLK, RESET
Solenoid Monitor Inputs Maximum Voltage (5ms. maximum duration)
Frequency of SPI Operation (VDD = 5.0V)(1)
ESD Voltage(2)
Human Body Model(3)
Machine Model
VPWR
VDD
VSPI
VPWRMAX
–
VINJMXMAX
–
VESD1
VESD2
-1.5 to 25
-0.3 to 7.0
-0.3 to 7.0
-1.5 to 50
-0.3 to VSPI
64
3.2
±2000
±200
VDC
VDC
VDC
VDC
MHz
V
THERMAL RATINGS
Peak Package Reflow Temperature During Reflow(4), (5)
TPPRT
Note 5
°C
Storage Temperature
TSTG
-55 to 150
°C
Operating Ambient Temperature
TA
-40 to 125
°C
Operating Junction Temperature
TJ
-40 to 150
°C
Notes
1.
2.
3.
4.
5.
This parameter is guaranteed by design but is not production tested.
ESD testing is performed in accordance with the Human Body Model (HBM) (Per AEC-Q100-002, CZAP = 100pF, RZAP = 1500Ω) and
the Machine Model (MM) (Per AEC-Q100-002, CZAP = 200pF, RZAP = 0Ω). ESD data available upon request.
All pins when tested individually.
Pin soldering temperature limit is for 10 seconds maximum duration. Not designed for immersion soldering. Exceeding these limits may
cause malfunction or permanent damage to the device.
Freescale’s Package Reflow capability meets Pb-free requirements for JEDEC standard J-STD-020C. For Peak Package Reflow
Temperature and Moisture Sensitivity Levels (MSL), Go to www.freescale.com, search by part number [e.g. remove prefixes/suffixes
and enter the core ID to view all orderable parts. (i.e. MC33xxxD enter 33xxx), and review parametrics.
Analog Integrated Circuit Device Data
Freescale Semiconductor
33811
5
5 Page 
FUNCTIONAL DESCRIPTION
FUNCTIONAL PIN DESCRIPTION
FUNCTIONAL DESCRIPTION
FUNCTIONAL PIN DESCRIPTION
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 from the VPWR pin through
an internal voltage regulator. The VPWR pin requires
adequate decoupling capacitance to the A_GND pin.
DIGITAL VOLTAGE SUPPLY (VDD)
The VDD pin is Logic Supply input to the 33811 IC. Maximum
input voltage on VDD is 5.25V for full operation. All IC digital
logic current except the SPI SO output pin is provided from
the VDD pin. The VDD pin requires adequate decoupling
capacitance to the D_GND pin.
SPI INTERFACE VOLTAGE (VSPI)
The VSPI input pin is used to determine communication logic
voltage levels between the microprocessor and the 33811
device. Current from VSPI is used to drive SO output and
pull-up current for CS and SI. VSPI must be connected to +5
Volts or +3.3 Volts for normal operation.
ANALOG GROUND (A_GND)
The Analog Ground (A_GND) pin provides a low current
analog ground for the IC. The VPWR supply is referenced to
the A_GND pin. The A_GND pin should be used for
decoupling the VPWR pin.
DIGITAL GROUND (D_GND)
The Digital Ground (D_GND) pin provides a dedicated
ground for the VDD and VSPI supplies and should be
connected to the A_GND pin.
SERIAL CLOCK INPUT (SCLK)
The system clock (SCLK) pin clocks the internal shift
register of the 33811. The SI data is latched into the input
shift register on the rising edge of SCLK signal. The SO pin
shifts status bits out on the falling edge of SCLK. The SO data
is available for the MCU to read on the rising edge of SCLK.
With CS in a logic high state, signals on the SCLK and SI pins
will be ignored and the SO pin is tri-state.
CHIP SELECT (CS)
The system MCU selects the 33811 to receive
communication using the chip select (CS) pin. With the CS in
a logic low state, command words may be sent to the 33811
via the serial input (SI) pin, and status information is received
by the MCU via the serial output (SO) pin. The falling edge of
CS enables the SO output and transfers status information
into the SO buffer.
Rising edge of the CS initiates the following operation:
1. Disables the SO driver (high-impedance)
2. Activates the received command word, allowing the
33811 to activate/deactivate output drivers.
To avoid any spurious data, it is essential the high-to-low
and low-to-high transitions of the CS signal occur only when
SCLK is in a logic low state. Internal to the 33811 device is an
active pull-up to VSPI on CS. In cases where voltage exists on
CS without the application of VSPI, no current will flow from
CS to the VSPI pin.
SERIAL INPUT DATA (SI)
The SI pin is used for serial instruction data input. SI
information is latched into the input register on the rising edge
of SCLK. A logic high state present on SI will program a one
in the command word on the rising edge of the CS signal. To
program a complete word, 16 bits of information must be
entered into the device.
SERIAL OUTPUT DATA (SO)
The SO pin is the output from the shift register. The SO pin
remains tri-stated until the CS pin transitions to a logic low
state. All normal operating drivers are reported as zero, all
faulted drivers are reported as one. The negative transition of
CS enables the SO driver.
The SI/SO shifting of the data follows a first-in-first-out
protocol, with both input and output words transferring the
most significant bit (MSB) first.
RESET INPUT (RESET)
The RESET pin is an active high digital input pin used to
clear the fault outputs and registers in the device. During
normal operation the RESET pin should be held low.
SOLENOID MONITOR INPUT (SOLM1, SOLM2,
SOLM3, SOLM4, SOLM5)
These are the five solenoid monitor inputs that are
connected to the Solenoid solenoid driver output pins.
Analog Integrated Circuit Device Data
Freescale Semiconductor
33811
11
11 Page | ||
| Páginas | Total 18 Páginas | |
| PDF Descargar | [ Datasheet 33811.PDF ] | |
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