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參數(shù)資料
| 型號(hào)： | PC33991FS |
| 英文描述： | Analog Products PC33991FS Fact Sheet |
| 中文描述： | 模擬產(chǎn)品PC33991FS概況 |
| 文件頁數(shù)： | 1/2頁 |
| 文件大?。?/td> | 667K |
| 代理商： | PC33991FS |
PC33991 GAUGE DRIVER INTEGRATED CIRCUIT
This GDIC is a Serial Peripheral Interface (SPI) controlled, dual stepper motor driver IC. This
monolithic IC consists of four dual output H-Bridge coil drivers and their associated control
and management logic. Each pair of H-Bridge drivers automatically controls the speed, direc-
tion and magnitude of current through the two coils of a 2-phase instrumentation stepper
motor, similar to an MMT-licensed AFIC 6405.
A special patent-pending circuit detects motor stall accurately and allows simple end stop
detection.
The GDIC is ideal for use in instrumentation systems which require distributed and flexible
stepper motor gauge driving. The device simplifies the use of stepper motors by including all
the logic required to manage the
motion of the stepper without
requiring significant processor
overhead. SPI communications are
used to request a motor position
and the IC completely manages the
acceleration, stepping and deceler-
ation of the motor to arrive correct-
ly at the requested position.
Updated requests can be received
at any time and the logic correctly
acts upon the latest position
request. Both motors can be
controlled and driven independently.
VPWR
VDD
RTZ
RSTB
CSB
SCLK
SI
SO
SIN1+
SIN1-
COS1+
COS1-
SIN2+
SIN2-
COS2+
COS2-
GND
5.0 V
Regulator
MCU
Motor 1
Motor 2
VPWR
PC33991
ANALOG
PRODUCTS
PC33991
FACT SHEET
APPLICATIONS
Driving Low Power
2 Phase Bipolar
Stepper Motors
Automotive Gauge
Clusters
Mirror Positioning
Headlight Leveling
Tachograph
Drivers for Multimedia
Applications
Digital Clocks
S
A
CUSTOMER BENEFITS
Simple system design with direct interfacing to a
microprocessor
Low system cost, minimal component count, and
simple circuit hook-up
Full management of movement of two motors
Low V
DD
current consumption
Analog microstepping for low EMI
Fully protected against faulted motors
Performance
Motor Drivers
Drive Current
Operating Voltage
Control/Communication
Operating Temp
Typical Values
2
± 30 mA
9.0 – 26 V nominal
SPI
-40°C ≤ T
A
≤ 125°C
Simplified Application Diagram
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
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