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AP2358 Datasheet(PDF) 10 Page - AIT Components Ltd.

Part No. AP2358
Description  AC-DC PWM CONTROLLER CURRENT MODE PWM POWER SWITCH FREQ SHUFFLING
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Maker  AITCOMPONENTS [AIT Components Ltd.]
Homepage  http://aitcomponents.com
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AP2358 Datasheet(HTML) 10 Page - AIT Components Ltd.

 
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AiT Semiconductor Inc.
www.ait-ic.com
AP2358
AC-DC PWM CONTROLLER
CURRENT MODE PWM POWER SWITCH FREQ SHUFFLING
REV1.0
- JUN 2016 RELEASED -
- 10 -
Protection Controls
Good power supply system reliability is achieved with its rich protection features including Cycle-by-Cycle
current limiting (OCP), Over Load Protection (OLP) and over voltage clamp, Under Voltage Lockout on VDD
(UVLO).
With Proprietary technology, the OCP is line voltage compensated to achieve constant output power limit over
the universal input voltage range.
At overload condition when FB input voltage exceeds power limit threshold value for more than TD_PL,
control circuit reacts to shut down the switcher. Switcher restarts when VDD voltage drop below UVLO limit.
VDD is supplied by transformer auxiliary winding output. It is clamped when VDD is higher than 30V. The output
of AP2358 is shut down when VDD drop below UVLO_ON limit and Switcher enters power on start-up
sequence.


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