PDF 33991 Data sheet ( Hoja de datos )

Número de pieza	33991
Descripción	Gauge Driver Integrated Circuit
Fabricantes	Motorola Inc
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No Preview Available ! Freescale Semiconductor Technical Data 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 Document Number: MC33991 Rev. 2.0, 11/2006 33991 GAUGE DRIVER INTEGRATED CIRCUIT DW SUFFIX EG SUFFIX (PB-FREE) 98ASB42344B 24-PIN SOICW ORDERING INFORMATION Device Temperature Range (TA) Package MC33991DW/R2 MCZ33991EG/R2 -40 to 125°C SOICW VPWR 5.0 V Regulator MCU 33991 VPWR VDD RT RS CS SCLK SI SO SIN1+ SIN1- COS1+ COS1- Motor 1 SIN2+ SIN2- COS2+ COS2- GND Motor 2 Figure 1. 33991 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., 2006. All rights reserved. 1 page ELECTRICAL CHARACTERISTICS MAXIMUM RATINGS ELECTRICAL CHARACTERISTICS MAXIMUM RATINGS Table 2. 33991 Maximum Ratings (All voltages are with respect to ground unless otherwise noted) Rating Symbol Value Limit Power Supply Voltage Steady State Input Pin Voltage (1) SIN+/- COS +/- Continuous Per Output Current (2) Storage Temperature Operating Junction Temperature Thermal Resistance (C/W) ESD Voltage (3) Human Body Model Machine Model Ambient Junction to Lead Peak Package Reflow Temperature During Reflow (4), (5) VPWR(SUS) VIN IOUTMAX TSTG TJUNC θJA θJL VESD1 VESD2 TPPRT -0.3 to 41 -0.3 to 7.0 40 -55 to 150 -40 to 150 60 20 ±2000 ±200 Note 5 V V mA °C °C °C/W °C/W V V °C Notes 1. Exceeding voltage limits on Input pins may cause permanent damage to the device. 2. Output continuous output rating so long as maximum junction temperature is not exceeded. Operation at 125°C ambient temperature will require maximum output current computation using package thermal resistances 3. VESD1 testing is performed in accordance with the Human Body Model (Czap = 100pF, Rzap = 1500 Ω), All pins are capable of Human Body Model RSP voltages of ±2000 V with one exception. The SO pin is capable of ± 1900 V, VESD2 testing is performed in accordance with the Machine Model (Czap = 200pF, Rzap = 0 Ω) 4. Pin soldering temperature limit is for 10 seconds maximum duration. Not designed for immersion soldering. Exceeding these limits may cause malfunction or permanent damage to the device. 5. Freescale’s Package Reflow capability meets Pb-free requirements for JEDEC standard J-STD-020C. For Peak Package Reflow Temperature and Moisture Sensitivity Levels (MSL), Go to www.freescale.com, search by part number [e.g. remove prefixes/suffixes and enter the core ID to view all orderable parts. (i.e. MC33xxxD enter 33xxx), and review parametrics. Analog Integrated Circuit Device Data Freescale Semiconductor 33991 5 5 Page TIMING DIAGRAMS ELECTRICAL CHARACTERISTICS TIMING DIAGRAMS RRSSTBT CSCBS SCLK SCLK SI SI 0.2 VDD TwRSTB TENBL 0.7VDD Tlead TwSCLKh TrSI 0.7VDD 0.2VDD TSIsu TwSCLKl TSI(hold) Don’t Care 0.7 VDD 0.2VDD Valid Don’t Care 0.7VDD TCSB Tlag TfSI Valid Don’t Care SCLK Figure 3. Input Timing Switching Characteristics TrSI 3.5V TfSI 50% 1.0V VOH VOL VIH VIL VIH VIL VIH VIL VIH VIL TdlyLH SO 0.2 VDD Low-to-High SO Tvalid High-to-Low 0.7 VDD TdlyHL 0.7 VDD TrSO TfSO 0.2VDD VOH VOL VOH VOL Figure 4. Valid Data Delay Time and Valid Time Waveforms Analog Integrated Circuit Device Data Freescale Semiconductor 33991 11 11 Page

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