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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
Additional preview pages of the SA8803 datasheet.

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Full PDF Text Transcription

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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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