MC33991 Datasheet, PDF (1/36 Pages) Motorola, Inc – Gauge Driver Integrated Circuit

Freescale Semiconductor, Inc.
MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Document order number: MC33991/D
Rev. 0, 10/2002
Preliminary Information
33991
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
Y 6405.
This device is ideal for use in automotive instrumentation systems requiring
distributed and flexible stepper motor gauge driving. The device also eases
R ^{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:
A _{• MMT-licensed two-phase stepper motor compatible}
• Minimal processor overhead required
IN • Fully integrated pointer movement and position state machine with air
core movement emulation
• 4096 possible steady state pointer positions
• 340° maximum pointer sweep
• Linear 4500° ²
IM ^{• Max pointer velocity of 400°}
• Analog micro stepping (12 steps/degree of pointer movement)
• Pointer calibration and return to zero
• SPI controlled 16-bit word
L _{• Calibratable Internal Clock}
• Low Sleep mode current
GAUGE DRIVER
INTEGRATED CIRCUIT
DW SUFFIX
PLASTIC PACKAGE
CASE 751E-04
SOICW
ORDERING INFORMATION
Device
Temperature
Range (T_A)
Package
PC33991DH/R2 -40 to 125°C
SOICW
E _{33991 Simplified Application Schematic}
R _0.1
P ^SIN0+
BATTERY
5V
REG
VDD
0.1
MC³³3⁹3⁹9¹91
SIN0-
MOTOR 0
GGDIC
COS0+
RTZ
COS0-
MCU
MCU
RSTB
CSB
SIN1+
SIN1-
SCLK
SI
SO
COS1+
MOTOR 1
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.
© Motorola, Inc. 2002
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