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AF1860 - Step-Down LED Driver

Download the AF1860 datasheet PDF. This datasheet also covers the AF1860-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

AF1860 is the monolithic IC designed for a step-down DC/DC converter capable of driving 1.5A load without an additional transistor.

The input voltage range is up to 60V.

Its feedback voltage, VFB, is 200mV.

Key Features

  • include a cycle-by-cycle current limit and a thermal protection. The AF1860 is available in standard SOP-8EP package. Features.
  • VIN Max = 60V.
  • VFB = 200mV.
  • Frequency 52kHz.
  • ILED Max 1.5A ( SOP-8EP ).
  • On/Off input may be used for the Analog Dimming.
  • Thermal protection.
  • Cycle-by-cycle current limit.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (AF1860-Alfa-MOS.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number AF1860
Manufacturer Alfa-MOS
File Size 208.93 KB
Description Step-Down LED Driver
Datasheet download datasheet AF1860 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 AF1860 60V 1.5A 52KHZ PWM Step Down DC-DC LED Driver General Description AF1860 is the monolithic IC designed for a step-down DC/DC converter capable of driving 1.5A load without an additional transistor. The input voltage range is up to 60V. Its feedback voltage, VFB, is 200mV. The AF1860 operates at a switching frequency of 52kHz. The external shutdown function is controlled by a logic level on the ON/OFF pin and then the circuit comes into the standby mode with ISTBY ~ 50μA (typ.). The ON/OFF pin may be used for the analog dimming. As the voltage on the ON/OFF pin is increased from 0.07V to 0.67V, the voltage on the FB pin falls from 200mV to 0V. The self-protection features include a cycle-by-cycle current limit and a thermal protection.