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AF1502 - Step-Down LED Driver

Download the AF1502 datasheet PDF. This datasheet also covers the AF1502-Alfa variant, as both devices belong to the same step-down led driver family and are provided as variant models within a single manufacturer datasheet.

General Description

AF1502 is a step down LED driver that is designed to meet maximum 2A constant current for high power LED application, and utilizes PWM control scheme that switches with 300Khz fixed frequency.

The input voltage range of AF1502 is from 4.2V to 23V.

Key Features

  • Input voltage: 4.2V to 23V. Low Feedback Voltage 0.2V. Driving up to 15 LEDs (1W 3S-5P) at 12VIN Oscillation frequency: 300KHz typ. Soft-start, Current limit, Enable function Great Output Capability PWM or Analog Dimming Control Thermal Shutdown function Built-in internal P-channel MOS SOP-8P Package.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (AF1502-Alfa-MOS.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number AF1502
Manufacturer Alfa-MOS
File Size 272.68 KB
Description Step-Down LED Driver
Datasheet download datasheet AF1502 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.

View original datasheet text
Alfa-MOS Technology AF1502 300KHz, 2A / 23V Step-Down LED Driver General Description AF1502 is a step down LED driver that is designed to meet maximum 2A constant current for high power LED application, and utilizes PWM control scheme that switches with 300Khz fixed frequency. The input voltage range of AF1502 is from 4.2V to 23V. It is suitable for series-parallel 1W, 3W, or 5W high power LED application due to the high operation voltage and output capability. At 12V input voltage, this device can drive up to 15pcs 1W LED (3S-5P) with constant 350mA LED current. The PWM control circuit is able to very the duty ratio linearly from 0 up to 100%. This device also contains an error amplifier circuit as well as a soft-start circuit that prevents overshoot at startup.