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AL1697 - Offline Dimmable LED Driver

General Description

The AL1697 is a high performance, high power factor, high efficiency and high precision buck-boost LED driver for mains dimmable LED lamp applications.

The AL1697 topology provides an accurate output current over wide line and load regulation.

Key Features

  • to enhance system safety and reliability. The AL1697 starts reducing output current when the driver’s temperature is higher than the built-in thermal foldback protection trigger point. Pin Assignments (Top View) VCC 1 RT 2 COMP 3 GND 4 SO-7 7D 6 CS 5 FB The AL1697 applies to a wide range of dimmers including leading edge and trailing edge dimmer. Some can achieve deep dimming down to 1%. The AL1697 dimming curve is compliant with the NEMA SSL6 standard. The AL1697 is available in SO-7 package.

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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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AL1697 HIGH PF, OFFLINE DIMMABLE LED DRIVER WITH INTERNAL HIGH-VOLTAGE MOSFET Description The AL1697 is a high performance, high power factor, high efficiency and high precision buck-boost LED driver for mains dimmable LED lamp applications. The AL1697 topology provides an accurate output current over wide line and load regulation. The wide switching frequency operates at boundary conduction mode (BCM) to ease EMI/EMC design, and testing to meet the latest regulatory standards. The AL1697 with built in MOSFET solution reduces the bill of material (BOM) cost by eliminating the need of auxiliary winding and an external high voltage MOSFET. The AL1697 has extensive protection features to enhance system safety and reliability.