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SA8803 - LIGHT EMITTING DIODE DRIVER

Description

The block Diagram of the SA8803 is shown in Fig.

1.

A control word is clocked into the device via the DATA pin with a local clock provided to pin CLK.

Features

  • n Drives 24 LED's under control of Serial n 11 Bit Information word controls up to 192 LED's (using eight SA8803s) Interface n Light Emitting Diode intensity n Readback of LED status programmable using a single resistor n Requires a local clock of 8 times the data rate n Automatic lamp test facility on reset (MRST) n Constant current from power supply option n Minimal external components n LED intensity constant, regardless of number of LED's illuminated PIN.

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Datasheet Details

Part number SA8803
Manufacturer Sames
File Size 84.54 KB
Description LIGHT EMITTING DIODE DRIVER
Datasheet download datasheet SA8803 Datasheet

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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sames SA8803 LIGHT EMITTING DIODE DRIVER FEATURES n Drives 24 LED's under control of Serial n 11 Bit Information word controls up to 192 LED's (using eight SA8803s) Interface n Light Emitting Diode intensity n Readback of LED status programmable using a single resistor n Requires a local clock of 8 times the data rate n Automatic lamp test facility on reset (MRST) n Constant current from power supply option n Minimal external components n LED intensity constant, regardless of number of LED's illuminated PIN CONNECTIONS DESCRIPTION The block Diagram of the SA8803 is shown in Fig. 1. A control word is clocked into the device via the DATA pin with a local clock provided to pin CLK. The control word comprises a 3-bit chip address, a 5-bit LED address and a Status (on/off) bit.
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