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MC33991 Datasheet

  • MC33991

  • Gauge Driver Integrated Circuit

  • Motorola   Motorola

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Freescale Semiconductor, Inc.
MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Document order number: MC33991/D
Rev. 0, 10/2002
Preliminary Information
Gauge Driver Integrated Circuit
The 33991device is a single packaged, Serial Peripheral Interface (SPI)
controlled, dual stepper 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 2-phase instrumentation stepper motor, similar to an MMT licensed AFIC
6405.
33991
Freescale Semiconductor, Inc...
This device is ideal for use in automotive instrumentation systems requiring
distributed and flexible stepper motor gauge driving. The device also eases
the transition to stepper motors from air core motors by emulating the air core
pointer movement with little additional processor bandwidth utilization.
The device has many attractive features including:
PR
EL
IM
IN
A
R
鈥?MMT-licensed two-phase stepper motor compatible
鈥?Minimal processor overhead required
鈥?Fully integrated pointer movement and position state machine with air
core movement emulation
鈥?4096 possible steady state pointer positions
鈥?340擄 maximum pointer sweep
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Linear 4500擄
2
Max pointer velocity of 400擄
Analog micro stepping (12 steps/degree of pointer movement)
Pointer calibration and return to zero
SPI controlled 16-bit word
Calibratable Internal Clock
Low Sleep mode current
33991 Simplified Application Schematic
0.1
Y
Device
PC33991DH/R2
MOTOR 0
MOTOR 1
GAUGE DRIVER
INTEGRATED CIRCUIT
DW SUFFIX
PLASTIC PACKAGE
CASE 751E-04
SOICW
ORDERING INFORMATION
Temperature
Range (T
A
)
-40 to 125擄C
Package
SOICW
SIN0+
SIN0-
BATTERY
5V
REG
VDD
0.1
RTZ
33991
MC33991
GDIC
GDIC
COS0+
COS0-
SIN1+
SIN1-
MCU
RSTB
CSB
SCLK
SI
SO
MCU
COS1+
COS1-
GND
TYPICAL APPLICATION
This document contains information on a product under development.
Motorola reserves the right to change or discontinue this product without notice.
漏 Motorola, Inc. 2002
For More Information On This Product,
Go to: www.freescale.com

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