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17531A Datasheet(PDF) 1 Page - Freescale Semiconductor, Inc |
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17531A Datasheet(HTML) 1 Page - Freescale Semiconductor, Inc |
1 / 20 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: MPC17531A Rev. 3.0, 2/2008 Freescale Semiconductor Technical Data © Freescale Semiconductor, Inc., 2005. All rights reserved. 700 mA Dual H-Bridge Motor Driver with 3.0 V Compatible Logic I/O The 17531A is a monolithic dual H-Bridge power IC ideal for portable electronic applications containing bipolar step motors and/or brush DC-motors (e.g., cameras and disk drive head positioners). The 17531A operates from 2.0 V to 8.6 V using the internal charge pump, with independent control of each H-Bridge via parallel MCU interface. The device features built-in shoot-through current protection and an undervoltage shutdown function. The 17531A has four operating modes: Forward, Reverse, Brake, and Tri-Stated (High Impedance). The 17531A has a low total RDS(ON) of 1.2 Ω (max @ 25°C). The 17531A efficiently drives many types of micromotors with low power dissipation owing to its low output resistance and high output slew rates. The H-Bridge outputs can be independently pulse width modulated (PWM’ed) at up to 200 kHz for speed/torque and current control. Features • Low Total RDS(ON) 0.8 W (Typ), 1.2 Ω (Max) @ 25°C • Output Current 0.7 A (DC) • Shoot-Through Current Protection Circuit • PWM Control Input Frequency up to 200 kHz • Built-In Charge Pump Circuit • Low Power Consumption • Undervoltage Detection and Shutdown Circuit • Power Save Mode with Current Draw ≤ 2.0 µA • Pb-Free Packaging Designated by Suffix Codes EV and EP Figure 1. 17531A Simplified Application Diagram DUAL H-BRIDGE VMFP SUFFIX EV SUFFIX (PB-FREE) 98ASA10616D 20-TERMINAL VMFP 17531A ORDERING INFORMATION Device Temperature Range (TA) Package MPC17531AEV/EL -20°C to 65°C 20 VMFP MPC17531AEP/R2 24 QFN QFN SUFFIX EP SUFFIX (PB-FREE) 98ARL10577D 24-TERMINAL QFN CRES C1L C1H C2L C2H IN2B PSAVE IN2A IN1A OUT2B OUT2A OUT1B OUT1A VM GND MCU IN1B 3.0 V 5.0 V 17531A Bipolar Step Motor N S VDD |
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