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.

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ST2221A 8-bit constant current led drivers by SiTI - Datasheet Preview

Datasheet Details

Part number	ST2221A
Manufacturer	SiTI
File Size	192.09 KB
Description	8-Bit CONSTANT CURRENT LED DRIVERS
Download	ST2221A Download (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

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