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AP1688 - UNIVERSAL MAINS LED DRIVER CONTROLLER

Description

The AP1688 is a high-performance AC/DC PFC and constant-current controller for universal mains LED driver applications.

The device is a buck controller that operates as a boundary conduction mode (BCM) to achieve high efficiency and easy EMI.

Features

  • fast start-up, low start-up current, low operation current, and high efficiency. The device also has rich protection features including overvoltage, short- and open-circuit, overcurrent, and overtemperature protection. The AP1688 is available in SO-8 package. Pin Assignments (Top View) NC 1 VS 2 VA 3 CS 4 8 VCC 7 OUT 6 GND 5 FB (SO-8/ M Package) Features.
  • Optimized for Buck Topology.
  • Boundary Conduction Mode (BCM) Operation to Achieve High Efficiency.
  • High Power Factor > 0.9.

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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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OBSOLETE – PART DISCONTINUED AP1688 PART OBSOLETE - USE AL1665 AP1688 AC/DC, HIGH PF, HIGH EFFICIENCY, UNIVERSAL MAINS LED DRIVER CONTROLLER Description The AP1688 is a high-performance AC/DC PFC and constant-current controller for universal mains LED driver applications. The device is a buck controller that operates as a boundary conduction mode (BCM) to achieve high efficiency and easy EMI. An open loop algorithm is adopted in the AP1688, which makes the system achieve excellent line and load regulations with high PF for universal mains input. The AP1688 features fast start-up, low start-up current, low operation current, and high efficiency. The device also has rich protection features including overvoltage, short- and open-circuit, overcurrent, and overtemperature protection.
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