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3511 - PC Power Supply Supervisors

Description

The UTC 3511 is designed to provide the voltage, and current supervisor function, power good output (PGO), fault protection latch (FPL_N), and protection detector function (PDON_N) control for switching power systems.

Features

  • S.
  • Over Voltage Detector (OVD) for 3.3V, 5V, 12V.
  • Under Voltage Detector (UVD) for 3.3V, 5V.
  • Open Drain Output for PGO and FPL_N.
  • 300 ms power good delay.
  • 75 ms delay for 3.3V and 5V turn on.
  • 38 ms PDON_N control De-bounce.
  • 2.4 ms PDON_N control to FPL_N turn-off delay.
  • De-bounce time 73 μs for UVD/OVD.
  • Wide supply voltage range from 4V ~ 15V.

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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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UNISONIC TECHNOLOGIES CO., LTD 3511 PC POWER SUPPLY SUPERVISORS  DESCRIPTION The UTC 3511 is designed to provide the voltage, and current supervisor function, power good output (PGO), fault protection latch (FPL_N), and protection detector function (PDON_N) control for switching power systems. For supervisor function, it provides the over voltage detector (OVD) monitoring for 3.3V, 5V, 12V; the under voltage detector (UVD) monitoring for 3.3V, 5V. When 3.3V or 5V voltage is decreasing to 2.69V, 4.3V respectively, the under voltage detector (UVD) function will be enabled to reset the PGO signal from high to low,and the FPL_N is latched HIGH. When 3.3V, 5V or 12V voltage is increasing to 3.9V, 6.1V or 13.
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