FAH4820

FAH4820 — Driver for DC Motors (ERMs) June 2013 FAH4820 Direct Driver for DC Motors (ERMs) Features           Single-Pin Direct-Drive of ERM for Simple Vibration Control External Motor Enable/Disable, Vibration Control Register-Based I2C Control (Optional; Device Operates in Default Condition) Over-Driving Motor Control, Drive ERM Voltage to VDD Rail Programmable Motor Drive Voltage Low Standby Current: <1 µA Fast Wake-up Time Nearly Rail-to-Rail Output Swing Protections: Under-Voltage, Over-Current, Over-Temperature Package: 10-Lead MLP Description The FAH4820 is a high-performance enhanced ERM driver for mobile phone and other hand-held devices. This device does not require a PWM signal to generate vibration of the ERM; it is controlled by the drive level on the HEN input. The ERM spins for the length of time that the HEN pin is held HIGH, then stop when the HEN pin is pulled LOW. The FAH4820’s register maps are accessible via I2C serial communication, which is useful for higher or lower drive voltage across the ERM or if disabling the device is desired. Related Resources  AN-5067 — PCB Land Pattern Design and SurfaceMount Guidelines for MLP Packages Applications    Mobile Phones Handheld Devices Keypad Interfaces Ordering Information Part Number FAH4820MPX Operating Temperature Range -40°C to +85°C Package 10-Lead, Dual, JEDEC MO-229, 3 mm Square, Molded Leadless Package (MLP) Packing Method 3000 Units on Tape & Reel © 2013 Fairchild Semiconductor C...