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LP5522 - Programmable LED Driver

Description

The LP5522 is a simple single wire programmable LED controller in six bump micro SMD package.

It provides constant current flow through high side driver.

Output current can be set from 1 mA to 20 mA by using an external resistor on the ISET pin.

Features

  • Programmable blinking sequence.
  • 1 to 3 programmable pulses 1 ms to 255 ms LED on time 10 ms to 2500 ms LED off time Single or continuous run of programmed blinking sequence Constant current high side output driver Adjustable current with external resistor 0.2 uA typical shutdown current Autonomous operation without external clock Micro SMD-6 package with 0.4 mm pitch: 1.215 mm x 0.815 mm x 0.6 mm (LxWxH).

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Datasheet preview – LP5522

Datasheet Details

Part number LP5522
Manufacturer National Semiconductor
File Size 294.23 KB
Description Programmable LED Driver
Datasheet download datasheet LP5522 Datasheet
Additional preview pages of the LP5522 datasheet.

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Full PDF Text Transcription

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LP5522 Programmable LED Driver June 2007 LP5522 Programmable LED Driver General Description The LP5522 is a simple single wire programmable LED controller in six bump micro SMD package. It provides constant current flow through high side driver. Output current can be set from 1 mA to 20 mA by using an external resistor on the ISET pin. If no external resistor is used, output current is set to 5 mA default current. The LP5522 is controlled using only one signal. The signal controls either directly the LED driver www.DataSheet4U.com or it launches previously programmed blinking sequence. The LP5522 works autonomously without a clock signal from the master device. Very low LED driver headroom voltage makes possible to use supply voltages close to LED forward voltage.
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