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LM3430 - Boost Controller

Description

The LM3430 is a high voltage low-side N-channel MOSFET controller.

Ideal for use in a boost regulator, the LM3430 can power the LED backlight in LCD panels, such as in notebook PCs.

Features

  • 1.
  • 2 Internal 40V Startup Regulator.
  • 1A Peak MOSFET Gate Driver.
  • VIN Range 6V to 40V.
  • Duty Cycle Limit in Excess of 90%.
  • Programmable UVLO with Hysteresis.
  • Cycle-by-Cycle Current Limit.
  • External Synchronizable (AC-coupled).
  • Single Resistor Oscillator Frequency Set.
  • Slope Compensation.
  • Adjustable Soft-start.
  • WSON-12 (3mm x 3mm).

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Full PDF Text Transcription

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LM3430 www.ti.com SNVS472B – JANUARY 2007 – REVISED MAY 2013 Boost Controller for LED Backlighting Check for Samples: LM3430 FEATURES 1 •2 Internal 40V Startup Regulator • 1A Peak MOSFET Gate Driver • VIN Range 6V to 40V • Duty Cycle Limit in Excess of 90% • Programmable UVLO with Hysteresis • Cycle-by-Cycle Current Limit • External Synchronizable (AC-coupled) • Single Resistor Oscillator Frequency Set • Slope Compensation • Adjustable Soft-start • WSON-12 (3mm x 3mm) APPLICATIONS • LED Backlight Driver (companion to LM3432) • Boost Converter • SEPIC Converter DESCRIPTION The LM3430 is a high voltage low-side N-channel MOSFET controller. Ideal for use in a boost regulator, the LM3430 can power the LED backlight in LCD panels, such as in notebook PCs.
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