FD115MH

FD115MA

Smart motor driver with embedded Hall sensor

This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice.

No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product.

Rev1.3 Feb. 9, 2009

P.1

FEELING

TECHNOLOGY

Features

Motor driver with integrated Hall sensor

Lock-shutdown protection & auto-restart function

Precise magnetic switching thresholds

“Soft-switch” phase-switching technique to reduce vibration and acoustic noise

Thermal shutdown protection

Built-in RD((Rotation Detect)) signal output

Available in SIP-5L, SOT89-5L packages

For 12V systems

General Description

FD115MH/FD115MA is a two coil motor driver with embedded Hall sensor. It integrates the motor driver with the Hall

sensor, which simplifies the PCB(printed circuit board) design and make the fabrication of small-size motors

possible.

Lock-shutdown and auto-restart function keeps the motor from being over-heated and restarts the motor after being

locked.

“Soft-switch” phase-switching technique is used to reduce the vibration and acoustic noise.

Thermal-shutdown protection ensures the motor driver to operate under specified temperature ranges.

All the protection mechanisms mentioned above combine to provide a complete protecting scenario for the motor

system, keep the motor system from possible damages and guarantee correct operations.

Block Diagram

Figure.1

Halogen

Free

Power On

Reset

Chopper amplifier

Bias Generator

Hall Plate

Coil Driver

Digital control logics

Oscillator