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AOZ1935 - High Efficiency Boost 20- or 30- LED Driver

Download the AOZ1935 datasheet PDF (AOZ1934 included). The manufacturer datasheet provides complete specifications, pinout details, electrical characteristics, and typical applications for high efficiency boost 20- or 30- led driver.

Description

The AOZ1934/5 is an ideal power solution for white LED backlighting for medium to small size LCD panels.

It is a highly integrated step up DC-DC converter with input voltage range from 2.7V to 25V, accommodating 1-, 2-, 3-, or 4-cell lithium ion batteries or 3.3V, 5V, 12V or 20V regulated supplies.

Features

  • are built into the AOZ1934/5, including cycle-by-cycle input current limit protection, output over-voltage protection, LED fault (open or short) protection and thermal shutdown protection. The leakage current in shutdown mode is 0.1µA. The AOZ1934/5 is available in a 16-lead 3 x 3 x 0.75mm thin QFN package. Features z Wide input range: 2.7V to 25V z Drive up to 30 LEDs.
  • AOZ1934 up to 20 LEDs (10s2p).
  • AOZ1935 up to 30 LEDs (10s3p) z Up to 92% efficiency z High frequency step-up.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (AOZ1934-AlphaOmegaSemiconductors.pdf) that lists specifications for multiple related part numbers.

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Full PDF Text Transcription

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AOZ1934/1935 High Efficiency Boost 20-, 30- LED Driver General Description The AOZ1934/5 is an ideal power solution for white LED backlighting for medium to small size LCD panels. It is a highly integrated step up DC-DC converter with input voltage range from 2.7V to 25V, accommodating 1-, 2-, 3-, or 4-cell lithium ion batteries or 3.3V, 5V, 12V or 20V regulated supplies. The AOZ1934/5 integrates a 40V power MOSFET as well as compensation and soft start circuitry, which results in a simpler and smaller solution with much fewer external components. A high switching frequency (800kHz) allows the use of a smaller inductor and capacitor to further reduce the solution size. Each of the regulated current sinks in the AOZ1934/5 provides 20mA factory programmed current.
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