FAH4840

FAN4840 — Haptic Driver for Linear Resonant Actuators (LRAs) October 2013 FAH4840 Haptic Driver for Linear Resonant Actuators (LRAs) Features             Direct Drive of LRA (Linear Resonant Actuator) External PWM Input (10 kHz to 250 kHz) with Divider Internal Motor Enable / Disable Input Auto Resonant Tracking LDO Provides Stable Haptic Effect with Battery Depletion Low Shutdown Current: < 5 nA Fast Wake-Up Time Nearly Rail-to-Rail Output Swing Thermal Shutdown, Over-Current Shutdown Register-Based Control by I C Immersion TouchSense® 3000 Certified Package: 8- Lead MicroPak™ MLP 2 Description The FAH4840 is a high-performance amplifier for mobile phones and other hand-held devices. The haptic driver takes a single-ended PWM input signal to control a Linear Resonant Actuator (LRA). The device utilizes an external 10 kHz to 250 kHz PWM signal capable of meeting the wide range of resonant frequencies needed for an LRA haptics applications. The FAH4840 register map is accessible through an 2 I C serial communication port. Applications    Mobile Phones Handheld Devices Any Key pad interface All trademarks are the property of their respective owners. Ordering Information Part Number Top Mark Operating Temperature Range FAH4840L8X YB -40°C to +85°C Package MicroPak™ MLP Packing Method Quantity Reel 5000 © 2013 Fairchild Semiconductor Corporation FAH4840 Rev. 1.0.0 www.fairchildsemi.com Free Datasheet http://www.datasheet4u.com/ FAH4840 — Haptic Driver...