點晶科技股份有限公司

SILICON TOUCH TECHNOLOGY INC.

ST1114E/ST1114K/ST1114P

SP-ST1114EKP-A.011

Version

：A.011

Page

：2

Pin Assignment

Pin NO.

Pin Name

Description

1

VDD

Power supply pin

2

O2

Output sinking pin

3

HIN

Input pin from Hall Latch IC

4

FGR

Output pin of fan tachometer

(open-drained with an pull-up resistor about 100KΩ)

FG

: ST1114E

(The frequency is same with the HIN frequency. )

FG/2 : ST1114K

(The frequency is the half HIN frequency.)

RD

: ST1114P

(Rotation detection output)

5

GND

Ground pin

6

O1

Output sinking pin

Features and Benefits

Optimized for double coil Brushless DC Motor applications

Wide operation range (1.8V ~ 16V )

Lock detection and automatic self-restart

Tachometer output or Rotation Detector Output

FG output for ST1114E, FG/2 output for ST1114K, RD output for ST1114P

Support for 3V/5V/12V supply voltage

High output sinking capability

Thin, small, highly reliable package (SOT-26)

Absolute Maximum Ratings

Parameter

Symbol

Rating

Unit

Supply Voltage

1.8 ~ 16

V

Input Voltage

V

Maximum Output Current

800

*

mA

Power Dissipation

0.35

W

Operating Temperature Range

-40 ~ 125

°C

Storage Temperature Range

-65 ~ 150

°C

* Power dissipation and operating temperature must be concerned for lager current application.

O2

VDD

HIN

GND

O1

FGR