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AT1729 - 3-Channel PWM Controller for LCD Bias

General Description

The AT1729 is a PWM DC/DC converter control IC with 3 channel outputs that can directly drive power MOSFET.

This IC ia suitable for very small DC/DC converters because of their small and thin package(1.1 mm max.), and high operation frequency (up to 1.0 MHz).

Key Features

  • Low input voltage: 2.5V to 7V.
  • 3-Channels PWM Control: 2 Boost Controller(CH1,CH2) 1 Inverting Controller (CH3).
  • Adjustable Soft start time and maximum duty cycle.
  • Built-in timer latch for short circuit protection: Delay time=216/(Switching frequency).
  • Built-in under-voltage lockout, thermal shutdown.
  • High operating frequency: 100kHz to 1MHz.

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Datasheet Details

Part number AT1729
Manufacturer Unknown Manufacturer
File Size 248.23 KB
Description 3-Channel PWM Controller for LCD Bias
Datasheet download datasheet AT1729 Datasheet

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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AT1729 Preliminary 3-Channel PWM Controller for LCD Bias General Description The AT1729 is a PWM DC/DC converter control IC with 3 channel outputs that can directly drive power MOSFET. This IC ia suitable for very small DC/DC converters because of their small and thin package(1.1 mm max.), and high operation frequency (up to 1.0 MHz). Features • Low input voltage: 2.5V to 7V • 3-Channels PWM Control: 2 Boost Controller(CH1,CH2) 1 Inverting Controller (CH3) • Adjustable Soft start time and maximum duty cycle • Built-in timer latch for short circuit protection: Delay time=216/(Switching frequency) • Built-in under-voltage lockout, thermal shutdown. • High operating frequency: 100kHz to 1MHz Applications • LCD Displays Bias • Power Supply for general equipment Block Diagram 2F, No.