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MC33976DW 数据表(PDF) 1 Page - Freescale Semiconductor, Inc

部件名 MC33976DW
功能描述  Dual Gauge Driver with Configurable esponse Time
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制造商  FREESCALE [Freescale Semiconductor, Inc]
网页  http://www.freescale.com
标志 FREESCALE - Freescale Semiconductor, Inc

MC33976DW 数据表(HTML) 1 Page - Freescale Semiconductor, Inc

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Document Number: MC33976
Rev 4.0, 1/2007
Freescale Semiconductor
Advance Information
* 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.
Dual Gauge Driver with
Configurable Response Time
The 33976 is a single-packaged, Serial Peripheral Interface (SPI)
controlled, dual step motor gauge driver integrated circuit (IC). This
monolithic IC consists of four dual output H-Bridge coil drivers and the
associated control logic. Each pair of H-Bridge drivers is used to
automatically control the speed, direction, and magnitude of current
through the two coils of a two-phase instrumentation step motor,
similar to an MMT-licensed AFIC 6405 or Switec MS-X15.xxx motor.
The 33976 is ideal for use in automotive instrumentation systems
requiring distributed and flexible step motor gauge driving. The
device also eases the transition to step motors from air core motors
by emulating the air core pointer movement with little additional
processor bandwidth utilization.
Features
•MMT-Licensed Two-Phase Step Motor Compatible
•Switec MS-X15.xxx Step Motor Compatible
•Minimal Processor Overhead Required
•Fully Integrated Pointer Movement and Position State Machine
with Channel-Independent Configurable Pointer Movement
•4096 Possible Steady State Pointer Positions
•340° Maximum Pointer Sweep
•Maximum Acceleration of 4500°/s2
•Maximum Pointer Velocity of 400°/s
•Analog Microstepping (12 Steps/Degree of Pointer Movement)
•Pointer Calibration and Return to Zero (RTZ)
•SPI-Controlled 16-Bit Word
•Calibratable Internal Clock
•Low Sleep Mode Current
•Pb-Free Packaging Designated by Suffix Code EG
Figure 1. 33976 Simplified Application Diagram
CONFIGURABLE DUAL GAUGE DRIVER
33976
ORDERING INFORMATION
Device
Temperature
Range (TA)
Package
MC33976DW/R2
-40°C to 125°C
24 SOICW
MCZ33976EG/R2
DW SUFFIX
EG SUFFIX (PB-FREE)
98ASB42344B
24-PIN SOICW
5.0 V
Regulator
MCU
V
PWR
VPWD
33976
V
DD
RTZ
RST
CS
SCLK
SI
SO
GND
Motor 0
SIN0+
SIN0-
COS0+
COS0-
Motor 1
SIN1+
SIN1-
COS1+
COS1-
VDD


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