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AS1111 - Low-Dropout LED Drivers

General Description

The AS1111A/AS1111B/AS1111C are LED drivers designed to match current source bias for any color LED, including white and blue.

The devices can drive up to 4 high-current LEDs, and the LED current is programmable using an external resistor (RSET).

Key Features

  • The benefits and features of AS1111, Low.
  • Dropout LED Drivers are listed below: High efficient Benefits Supports a variety of end.

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Datasheet Details

Part number AS1111
Manufacturer ams OSRAM
File Size 653.46 KB
Description Low-Dropout LED Drivers
Datasheet download datasheet AS1111 Datasheet

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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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AS1111 Low–Dropout LED Drivers General Description The AS1111A/AS1111B/AS1111C are LED drivers designed to match current source bias for any color LED, including white and blue. The devices can drive up to 4 high-current LEDs, and the LED current is programmable using an external resistor (RSET). The AS1111A LED currents are 460 x ISET (per LED, typ) at an LED cathode voltage (VSAT) of 150mV and 650 x ISET (typ) at a VSAT of 1V, where ISET is the current through RSET connected to pin CTRL. The AS1111B & AS1111C LED currents are 230 x ISET (per LED, typ) at a VSAT of 150mV and 325 x ISET (typ) at a VSAT of 1V. All AS1111 versions incorporate a chip-enable feature via pin EN. When the devices are disabled, the supply current drops down to less than 1μA.