UC3871 - Resonant Fluorescent Lamp Driver

Unitrode

General Description

The UC1871 Family of IC’s is optimized for highly efficient fluorescent lamp control.

An additional PWM controller is integrated on the IC for applications requiring an additional supply, as in LCD displays.

Key Features

1µA ICC when Disabled.
PWM Control for LCD Supply.
Zero Voltage Switched (ZVS) on Push-Pull Drivers.
Open Lamp Detect Circuitry.
4.5V to 20V Operation.
Non-saturating Transformer Topology.

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UC3871 resonant fluorescent lamp driver by Unitrode - Datasheet Preview

Datasheet Details

Part number	UC3871
Manufacturer	Unitrode
File Size	0.98 MB
Description	Resonant Fluorescent Lamp Driver
Datasheet	UC3871 Datasheet

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Other Datasheets by Unitrode

Part Number	Description
UC3872	Resonant Lamp Ballast Controller
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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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Resonant Fluorescent Lamp Driver UC1871 UC2871 UC3871 FEATURES • 1µA ICC when Disabled • PWM Control for LCD Supply • Zero Voltage Switched (ZVS) on Push-Pull Drivers • Open Lamp Detect Circuitry • 4.5V to 20V Operation • Non-saturating Transformer Topology DESCRIPTION The UC1871 Family of IC’s is optimized for highly efficient fluorescent lamp control. An additional PWM controller is integrated on the IC for applications requiring an additional supply, as in LCD displays. When disabled the IC draws only 1µA, providing a true disconnect feature, which is optimum for battery powered systems. The switching frequency of all outputs are synchronized to the resonant frequency of the external passive network, which provides Zero Voltage Switching on the Push-Pull drivers.