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AL5802LP4 - ADJUSTABLE CURRENT SINK LINEAR LED DRIVER

General Description

The AL5802LP4 combines a high-gain NPN transistor with a pre-biased NPN transistor to make a simple small footprint LED driver.

The LED current is set by an external resistor connected from REXT Pin (2) to GND Pin (1).

Key Features

  • Reference Voltage VREXT = 0.65V.
  • -40 to +125.

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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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ADVANACDEVDAINNCFEO IRNMNFAEOTIRWOMPNARTOIDOUNCT AL5802LP4 30V, ADJUSTABLE CURRENT SINK LINEAR LED DRIVER Description The AL5802LP4 combines a high-gain NPN transistor with a pre-biased NPN transistor to make a simple small footprint LED driver. Pin Assignments The LED current is set by an external resistor connected from REXT Pin (2) to GND Pin (1). The internal high-gain transistor develops approximately 0.6V across the external resistor. The AL5802LP4’s open-collector output can operate from 0.8V to 30V making it suitable for industry standard 5V to 24V power supplies without additional components.