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BL8585 - LINEAR LED DRIVER

Description

The BL8585 is a high-voltage adjustable current source with accurate temperature compensation.

The device is designed to provide a constant current source determined by an external sense resistor Rsense.

Features

  • Wide operation range: from 5V to 90V(VA-B).
  • TO-92 packages available.
  • ILED can be programmed from 10mA to 20mA via changing Rsense.
  • Power dissipation can be adjusted.
  • Easy to use, only 3 pins and very little external components are needed.
  • Can be paralleled for higher current.
  • Temperature compensated.

📥 Download Datasheet

Datasheet Details

Part number BL8585
Manufacturer SHANGHAI BELLING
File Size 147.65 KB
Description LINEAR LED DRIVER
Datasheet download datasheet BL8585 Datasheet

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Full PDF Text Transcription

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DESCRIPTION The BL8585 is a high-voltage adjustable current source with accurate temperature compensation. The device is designed to provide a constant current source determined by an external sense resistor Rsense. The current is adjustable from 10mA to 20mA with less than 10% error while input changes from 5V to 90V. With an external resistor (R1 in Figure 1) between VA and IS pin, the heat in the IC can be significantly reduced while keeping the summation of IC and R1 current to be constant. This is extremely useful in the area that power lines are not very stable. A typical application for the BL8585 is to drive LEDs with a constant current varies from 1020mA. They can also be used in parallel to provide higher current according to the bias. This device is available in TO-92 package.
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