WS2801DI データシートの表示（PDF） - Unspecified

部品番号

コンポーネント説明

メーカー

WS2801DI

3-Channel Constant Current LED Driver With Programmable PWM Outputs

Unspecified 

　 Pin Description

Pin Port

1

2

3

Pin Name

CKI

SDI

POL

4

RFB

5

GFB

6

BFB

7

GND

8

BOUT

9

GOUT

10

ROUT

11

NC

12

SDO

13

CKO

14

VCC

Application Information

Preliminary WS2801

3-Channel Constant Current

LED Driver With Programmable

PWM Outputs

Pin Description

Data clock input

Serial gray scale data input

Output polarity control. When this pin is pull to GND, the driver output will be

reversed; when floating or pulled high, the output polarity will not be reversed.

The feed back of the R channel, a resistor connected to this pin can set the

output constant current of the R channel

The feed back of the G channel, a resistor connected to this pin can set the

output constant current of the G channel

The feed back of the B channel, a resistor connected to this pin can set the

output constant current of the B channel

Ground

The output of the B channel

The output of the G channel

The output of the R channel

None connection

The output of the serial gray scale data.

The output of the buffered clock

Power supply input, a capacitor can be connected from this pin to GND to

enhance the noise immunity.

WS-Preliminary-V0.3

Fig4, The typical application circuit of WS2801

5 /15

http://www.world-semi.com

Share Link: