Datasheet > FD1257AH-G1

FD1257AH-G1

更新时间： 2024-11-22 01:20:43

品牌	Logo	应用领域
远翔科技 - FEELING		/
页数	文件大小	规格书
12页	272K
描述
Smart motor driver with embedded Hall sensor

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FD1257AH-G1 数据手册

FEELING

TECHNOLOGY

FD1257AH

Smart motor driver with embedded Hall sensor

Features

ꢀ

Motor driver with high sensitivity Hall-effect sensor

H-Bridge MOS driver

Halogen Free

Lock-shutdown protection & auto-restart function

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

Thermal shutdown protection(TSD)

Available in SIP-4L package

For 5V and 12V DC motor / FAN systems

General Description

FD1257AH is a single-phase full wave motor driver with embedded Hall-effect sensor IC. It integrates a H-bridge

MOS driver, a high sensitivity hall-effect sensor, an event timer for rotor locked in SIP-4L package, which make the

motors’ PCBs(printed circuit boards) design easy and fabricate the high efficiency DC motors or FANs as simply as

possible.

For safety, Lock-shutdown function would turn the IC’s internal drivers off avoiding over-heat when the rotor is

locked, and IC will try to re-start the rotor’s torque after the time of these drivers’ shutdown.

Thermal-shutdown protection (TSD) ensures the internal drivers of IC are operating under a safe operating

temperature range.

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

system and avoid any possible damages and guarantee under a correct and safe operation.

Block Diagram

Bias Generator

Chopper Amplifier

Hall Plate

Oscillator

H-Bridge

MOS Driver

Digital Control Logic

(Event Timer)

Power On

Reset

Figure.1

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.

Rev1.2 Aug. 25, 2009

P.1

12 3 4 5 6 7...12

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