33977 Datasheet | Freescale Semiconductor

Features - - - - - - - - - - - - - - MMT-Licensed Two-Phase Stepper Motor patible Switec MS-X15.xxx Stepper Motor patible 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 Maximum Acceleration of 4500°/s2 Maximum Pointer Velocity of 400°/s Analog Microstepping (12 Steps/Degrees of Pointer Movement) Pointer Calibration and Return to Zero (RTZ) Controlled via 16-Bit SPI Messages Internal Clock Capable of Calibration Low Sleep Mode Current Pb-Free Packaging Designated by suffix code EG SINGLE GAUGE DRIVER DW SUFFIX EG SUFFIX (Pb-FREE) 98ASB42344B 24-PIN SOICW ORDERING INFORMATION Device MC33977DW/R2 - 40°C to 125°C MCZ33977EG/R2 24 SOICW Temperature Range (TA) Package V PWR 33977 5.0 V Regulator V DD VPWR VDD SIN+ SIN- Motor RTZ RST CS SCLK SI SO COS+ COS- Figure 1. 33977 Simplified Application Diagram Freescale Semiconductor, Inc. reserves the right to change the detail specifications, as may be required, to permit improvements in the design of its products. © Freescale Semiconductor, Inc., 2007. All rights reserved. INTERNAL BLOCK DIAGRAM INTERNAL BLOCK DIAGRAM VPWR INTERNAL REGULATOR CS SCLK SO SI COS SPI COS+ COS- LOGIC STATE MACHINE UNDERAND OVERVOLTAGE DETECT ILIM H-BRIDGE AND CONTROL SIN+ SIN- OVERTEMPERATURE DETECT VDD SIGMA-DELTA ADC OSCILLATOR AGND RTZ MULTIPLEXER GND (8) Figure 2. 33977 Simplified Internal Block...