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MC33991 Scheda tecnica(PDF) 1 Page - Motorola, Inc |
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MC33991 Scheda tecnica(HTML) 1 Page - Motorola, Inc |
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1 / 36 page  MOTOROLA SEMICONDUCTOR TECHNICAL DATA 33991 Simplified Application Schematic This document contains information on a product under development. Motorola reserves the right to change or discontinue this product without notice. © Motorola, Inc. 2002 Document order number: MC33991/D Rev. 0, 10/2002 33991 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. 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: • MMT-licensed two-phase stepper motor compatible • Minimal processor overhead required • 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 • 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 • Calibratable Internal Clock • Low Sleep mode current DW SUFFIX PLASTIC PACKAGE CASE 751E-04 SOICW ORDERING INFORMATION Device Temperature Range (TA) Package PC33991DH/R2 -40 to 125°C SOICW COS1- COS0- COS1+ COS0+ SIN0+ SIN1- SIN1+ SIN0- MC33991 GDIC GND SCLK SI SO CSB RSTB VDD BATTERY 5V REG MCU TYPICAL APPLICATION MOTOR 0 MOTOR 1 RTZ 0.1 0.1 33991 GDIC MCU GAUGE DRIVER INTEGRATED CIRCUIT Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com |
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