Driver

WS2801SO Datasheet PDF – Constant Current LED Driver

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Part Number: WS2801SO

Function: 3-Channel Constant Current LED Driver With Programmable PWM Outputs

Manufacturer: Unspecified

Pinouts:

WS2801SO datasheet

 

Description

The WS2801SO is a constant current LED driver. It is designed for indoor/ outdoor LED displays and decorative LED lighting system. It is suitable for LED cascading applications. The WS2801ownes 3 output channels, each channel can drive a constant current up to 30mA. WS2081 contains serial shift registers, data latches, output registers, band gap reference voltage generator, internal oscillator, and programmable constant output current drivers.

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components

Features

• Supports both constant voltage and constant current drive mode

• Programmable constant LED drive current

• Wide constant output current range 5~150mA

• Build in PWM dimming scheme for each output channel, supports free-run, especially suitable for low cost controller application

• PWM free-run capability(refresh rate(2.5KHz)

• Build in buffers to cascading data and clock to the next driver
• Output polarity reverse function

• Support hot swap

• Maximum input clock frequency 25MHz

 

WS2801SO Datasheet PDF Download


WS2801SO pdf

Other data sheets are available within the file: WS2801-SO

PT6601 Datasheet PDF – Segment LCD Driver IC – PTC

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Part Number: PT6601

Function: Segment driver, LCD driver IC

Package: QFP 100 Pins type

Manufacturer: Princeton Technology

Pinouts:

PT6601 datasheet

 

Description

The PT6601 is a Segment Driver LCD Driver IC utilizing CMOS Technology used for Large Scale Dot Matrix Liquid Crystal Graphic Displays. 80 bits of display data sent from a controller are latched using a 4-bit parallel transfer technique and LCD drive signals are generated. It can be used with Common LCD Driver, PT6630 to drive Large Screen LCD Panels.

Features

1. CMOS Technology

2. Supports Display Duties from 1/64 to 1/256

3. Operating Supply Voltage:
(1) VDD (Logic Block) : 5V + 10%
(2) VDD -VEE (LCD Block) : 12 to 32 V

4 .Operating Temperature : -20 to +75 oC

5. Supports Power Reduction in Large Scale Panel via a Chip Disable Pin

6. LCD Drive Circuit for 80 bits Display

7. 4 -Bit Parallel Data Input

8. Maximum of 6.0 MHz Data Transfer Clock and Bidirectional Shifting Supported

Applications:

1. Peripheral Device

Other data sheets are available within the file: PT6601-H

PT6601 Datasheet PDF Download

PT6601 pdf

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