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 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. 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 -20°C ≤ TA ≤ 65°C FEATURES QUESTIONS • Low total RDS(ON) 8.0 W (typ), 1.2 W (max) @ 25×C • 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) -20°C to 65°C 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 Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © 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