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OB3340 - High CC Buck Topology LED driver

Download the OB3340 datasheet PDF. This datasheet also covers the OB3340-On variant, as both devices belong to the same high cc buck topology led driver family and are provided as variant models within a single manufacturer datasheet.

General Description

The OB3340 is a high power factor and high constant current precision LED driver for LED lighting applications.

Key Features

  • including system VCC under voltage lockout (UVLO), Output shortopen protection, Cycle by cycle current limiting, and gate drive output clamping for external power MOSFET protection.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (OB3340-On-Bright.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number OB3340
Manufacturer On-Bright
File Size 240.28 KB
Description High CC Buck Topology LED driver
Datasheet download datasheet OB3340 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
OB3340 High PF, High CC Buck Topology LED driver Product Specification GENERAL DESCRIPTION The OB3340 is a high power factor and high constant current precision LED driver for LED lighting applications. An analog multiplier for power factor correction (PFC), zero current detector (ZCD) to ensure TM operation and a feedback circuit to achieve constant LED current, a current sensing comparator with built-in leadingedge blanking ensures safe operation during short-circuit at the output, and a totem pole output ideally suited for driving a power MOSFET. OB3340 provides comprehensive protection features including system VCC under voltage lockout (UVLO), Output shortopen protection, Cycle by cycle current limiting, and gate drive output clamping for external power MOSFET protection.