Datasheet4U Logo Datasheet4U.com

ST2221A Datasheet 8-bit Constant Current Led Drivers

Manufacturer: SiTI

Overview: ST2221A Version Issue Date File Name Total Pages : A.036 : 2006/2/9 : SP-ST2221A-A.036 : 17 8-Bit CONSTANT CURRENT LED DRIVERS 新竹市科學園區展業一路 9 號 7 樓之 1 SILICON TOUCH TECHNOLOGY INC. 9-7F-1, Prosperity Road I, Science Based Industrial Park, Hsin-Chu, Taiwan 300, R.O.C. Tel：886-3-5645656 Fax：886-3-5645626 點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC.

Datasheet Details

Part number ST2221A
Manufacturer SiTI
File Size 192.09 KB
Description 8-Bit CONSTANT CURRENT LED DRIVERS
Datasheet ST2221A-SiTI.pdf

General Description

The ST2221A is specifically designed for LED and LED DISPLAY constant current drivers.

The value of constant current can be varied using an external resistor (Iout = 5 ~90mA).

The devices include an 8-bit shift registers, latches, and constant current drivers on a single Silicon CMOS chip.

Key Features

  • z Constant Current Output : Current with one resistor for 5mA to 90mA z Maximum Clock Frequency : 25MHz (Cascade Operation) z 5V CMOS Compatible Input z Package : PDIP16,SOP16,SSOP16 z Constant Current Matching: (Ta = 25°C、VDD = 5.0V) Bit-to-Bit : ± 6%、Chip-to-Chip : ± 10%、 @ IOUT = 5 ~ 40mA Bit-to-Bit : ± 6%、Chip-to-Chip : ± 10%、 @ IOUT = 40 ~ 90mA 8-BIT.

More Datasheets from SiTI

Part Number Description
ST2221C 16-Bit Constant Current LED Drivers
ST2226A PWM-Controlled Constant Current Driver
ST2226B PWM-Controlled Constant Current Driver

ST2221A Distributor