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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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33991 데이터시트(PDF) 1 Page - Freescale Semiconductor, Inc |
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33991 데이터시트(HTML) 1 Page - Freescale Semiconductor, Inc |
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1 / 36 page  Freescale Semiconductor, Inc. reserves the right to change the detail specifications, as may be required, to permit improvements in the design of its products. Document Number: MC33991 Rev. 2.0, 11/2006 Freescale Semiconductor Technical Data © Freescale Semiconductor, Inc., 2006. All rights reserved. Gauge Driver Integrated Circuit This 33991 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 two-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: Features • 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 • Maximum Pointer Velocity of 400° • Analog Microstepping (12 Steps/Degree of Pointer Movement) • Pointer Calibration and Return to Zero • SPI Controlled 16-Bit Word • Calibratable Internal Clock • Low Sleep Mode Current • Pb-Free Packaging Designated by Suffix Code EG Figure 1. 33991 Simplified Application Diagram GAUGE DRIVER INTEGRATED CIRCUIT DW SUFFIX EG SUFFIX (PB-FREE) 98ASB42344B 24-PIN SOICW 33991 ORDERING INFORMATION Device Temperature Range (TA) Package MC33991DW/R2 -40 to 125°C SOICW MCZ33991EG/R2 5.0 V Regulator MCU Motor 1 Motor 2 VPWR 33991 VPWR VDD RT RS CS SCLK SI SO SIN1+ SIN1- COS1+ COS1- SIN2+ SIN2- COS2+ COS2- GND |
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