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Product Overview

CS8903

CS8903 is a 3-channel PWM enabled LED driver IC, which is designed for LED lighting or display applications.

At CS8903 output channel, 3-channel constant current value set is adjustable with 3 corresponding external resistors and the internal PWM control circuitry to match RGB color characteristics.
CS8903 built in a voltage regulator, which provides supply voltage range from 6.0V to 24V, and built in an oscillator for PWM functioning. Data (DAO) and clock (CKO) buffer outputs are designed for cascading another chip.

In addition, CS8903 guarantees to stand maximum 24V at the output channel.

FEATURES

3 constant current channels for RGB each
Maximum output current capability: 60mA each channel
Range of constant current for every channel: 5mA ~ 60mA
Maximum series-in clock frequency: 20MHz
Built-in buffers for cascading control signal data (DAO) and clock (CKO) to next driver IC
Built-in voltage regulator working with supply voltage ranging from 6V to 24V
PWM free-running capability: refresh rate 290Hz with internal oscillator 4.76MHz.

Selectable modes for PWM control:
8-bits luminance data with PWM current outputs (8 bits mode)
8-bits luminance data and 6-bits global brightness data (14 bits mode)
8-bits luminance data and 5-bits individual color correction data (13 bits mode)

Output current accuracy:
Bit-bit skew: <+/-6%
IC-IC skew: <+/-6%

Maximum output drain voltage: 24V
For common anode LED application
CMOS/TTL compatible input

APPLICATION

LED lighting.
LED display applications.

FAQ SUPPORT

What is the lead time of LED Driver ICs?

Within one week.

Do the packages meet RoHS standard specification?

Yes. All the packages are green & Pb free packages to meet RoHS standard specification.

LED Driver IC Package ordering information ?

FILE DOWNLOAD

CS8903
Data Sheet 1.0