Datasheet > ST1117B

ST1117B

更新时间： 2022-12-26 09:10:08

品牌	Logo	应用领域
点晶 - SITI		驱动器
页数	文件大小	规格书
7页	220K
描述
Single Coil Brushless DC Motor Drivers ( 1.5 to 8.5 Volts )

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数据手册

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ST1117B 数据手册

點晶科技股份有限公司

SILICON TOUCH TECHNOLOGY INC.

ST1117A / ST1117B /ST1117C

ST1117A / ST1117B / ST1117C

Single Coil Brushless DC Motor Drivers

( 1.5 to 8.5 Volts )

General Specifications

The device is a single coil DC brushless motor driver IC with PWM control, lock

protection, power polarity reverse protection and frequency generator. The driver is

optimal for single coil fan applications with less external components.

Features and Benefits

Support single-phase full wave Brushless DC Motor Driver

Built-in Hall sensor input amplifier

Low voltage startup (VDD=1.5V)

High output sinking and driving capability

Lock detection and automatic self-restart

Without external timing capacitor,

Reduces the numbers of external component required

External PWM control signal input

With FG/2 output, suitable for 8-poles fan motor for ST1117A

With FG output, suitable for 4-poles fan motor for ST1117B

With RD output for ST1117C

Thin, compact, highly reliable package (SOT-28)

Pin Description

NO. NAME

DESCRIPTION

Output driving & sinking pin

VSS

FGR

VSS

Ground pin

VDD

PWM

Frequency generator or rotating detector

ST1117A : FG/2

FGR

ST1117B : FG

ST1117C : RD

Hall sensor in+

Hall sensor in-

PWM Input pin for PWM Control

VDD Power supply pin

Output driving & sinking pin

SP-ST1117ABC-A.007

Version：A.007

Page：1

123 4 5 6 7

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