MAX8729 - Constant-Frequency / Half-Bridge CCFL Inverter Controller

Maxim Integrated (now Analog Devices)

General Description

The MAX8729 cold-cathode-fluorescent lamp (CCFL) inverter controller is designed to drive multiple CCFLs using the half-bridge inverter consisting of two external n-channel power MOSFETs.

The half-bridge topology minimizes the component count, while providing near sinusoidal drive waveforms.

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MAX8729 constant-frequency / half-bridge ccfl inverter controller by Maxim Integrated (now Analog Devices) - Datasheet Preview

Datasheet Details

Part number	MAX8729
Manufacturer	Maxim Integrated (now Analog Devices)
File Size	714.05 KB
Description	Constant-Frequency / Half-Bridge CCFL Inverter Controller
Datasheet	MAX8729 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.

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MAX8729 EVALUATION KIT AVAILABLE Constant-Frequency, Half-Bridge CCFL Inverter Controller General Description The MAX8729 cold-cathode-fluorescent lamp (CCFL) inverter controller is designed to drive multiple CCFLs using the half-bridge inverter consisting of two external n-channel power MOSFETs. The half-bridge topology minimizes the component count, while providing near sinusoidal drive waveforms. The MAX8729 operates in resonant mode during striking and switches over to constant-frequency operation after all the lamps are lit. This unique feature ensures reliable striking under all conditions and reduces the transformer stress. The MAX8729 provides accurate lamp-current regulation (±2.5%). The lamp current is adjustable with an external resistor.