Analog Products Fact Sheet Power Actuation MPC17531A DUAL H-Bridge Dual H-Bridge Motor Driver DESCRIPTION 17531A SIMPLIFIED APPLICATION DIAGRAM 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. 3.0 V 5.0 V 17531A VDD VM C1L C1H C2L OUT1A C2H CRES OUT1B 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 (max @ 25C). 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. MCU IN1A OUT2A IN1B OUT2B IN2A IN2B PSAVE N S GND APPLICATIONS PERFORMANCE * Portable Electronics Outputs 2 ch * SLR Lens Shutter Control Output Voltage, VDD 0.7 V * Optical Disc Drive (MO, DVD, and CD) Peak Current 1.4 A * DSC, DVC Bipolar Step Motor TYPICAL VALUES Motor Operating Voltage 2.0 V - 8.6 V Logic Operating Voltage 2.7 V - 3.3 V Input PWM max Operating Temperature 200 kHz -20C TA 65C FEATURES QUESTIONS * Low total RDS(ON) 8.0 W (typ), 1.2 W (max) @ 25xC * Are you working on portable electronic powered applications? * Shoot-through current protection circuit * Do you need to control a bipolar stepper or brush DC-motor in a 3.3 V logic system? * Built-in charge pump circuit * Low power consumption * Are you designing a motion control system using motors up to 1.4 A (peak) and 8.6 V DC? * Undervoltage detection and shutdown circuit * Power save mode with current draw 2.0 mA * Pb-free packaging designated by suffix codes EV and EP * Additional devices available for comparison in Analog Product Selector Guide, SG1002 and Automotive Product Selector Guide, SG187. PROTECTION DETECT SHUT DOWN ! ! Undervoltage CUSTOMER BENEFITS * Easy MCU interfacing and control * Undervoltage protection to prevent erratic operation * High PWM rate for enhanced motor control * Low profile package for portable designs * Integral charge pump for simpler system * Low quiescent current * Two H-Bridges integrated in one package * Reduced design time ORDERING INFORMATION Device **17531AEV/EL **17531AEP/R2 Temperature Range (TA) -20C to 65C Data Sheet Order Number MPC17531AFS REV 2.0 20 VMFP 24 QFN MPC17531AF **Prefix Index: PC = Engineering Samples; MC = Production Contact Sales for Evaluation Kit Availability 20 VMFP 0.65 mm Pitch 7.25 mm x 5.35 mm Body FreescaleTM and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. (c) Freescale Semiconductor, Inc. 2005. All rights reserved. Package 24 QFN 0.5 mm Pitch 3.25 mm x 3.25 mm Body 2.75 mm x 2.75 mm Exposed Pad