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S3526 - 3-CHANNEL SECONDARY SUPERVISOR

General Description

UTC S3526 is used for switching power supply system.

UTC S3526 provides protection functions, over-voltage protection, over-current protection, under-voltage protection and power good signal generating.

Key Features

  • S.
  • Over/Under-voltage protection.
  • Over-current protection.
  • Additional protection input.
  • Fault protection output with open drain output stage.
  • Open drain power good output signal for power good input.
  • 300ms power good delay.
  • 75ms delay for UV/OC protection.
  • 38ms PSON control de-bounce.
  • Wide power supply range (3.8V~16V).
  • Special care for AC power off.

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Full PDF Text Transcription (Reference)

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UNISONIC TECHNOLOGIES CO., LTD S3526 Advance 3-CHANNEL SECONDARY SUPERVISOR CMOS IC  DESCRIPTION UTC S3526 is used for switching power supply system. UTC S3526 provides protection functions, over-voltage protection, over-current protection, under-voltage protection and power good signal generating. OVP/UVP (Over-Voltage/Under-Voltage Protection) monitors triple 12V to protect our power supply and PC, FPO goes to high when one of these supply voltages exceeds their normal operation voltage range. UTC S3526 OCP (Over Current Protection) monitors IS12A, IS12B and IS12C input current sense by using smart comparator circuit to make the point setting through sense resistor is more exact and easy.