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· Televisions, VCRs, facsimiles, and printers
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Support improved conformance with energy conservationlaws by providing two operating modes. • Standby mode (light loads): Achieves better efficiency due to reduced frequency . • Normal mode: Achieves high efficiency in RCC local resonance operationwith zero-cross detection. Incorporating an input voltage compensation function available to a wide input range for worldwide use. • This function compensates the maximum on-period in inverse proportion to the input voltage. Incorporating a timer latch function. • The time period can be adjusted according to the overload in normal mode or standby mode.• This function makes it possible to protect the IC from damage that may be caused by the short-circuiting of theIC's external capacitor forthetimer. Incorporating an overvoltage protection function. (detects at VCC pin) Incorporating a pulse-by-pulse overcurrent protection function, which makes latch protection possible at the time of the short-circuiting ofthetransformer's primary winding. Adopting a 9-pin single inline package (E-9S: available to manufacturing in overseas). AN8027: Transformer resetting is detected from the high- or low-level signal on the TR pin. AN8037: Transformer resetting is detected from the falling edge of the high-level signal on the TR pin. Refer to the "[1] operation descriptions 7. local resonance operation" section in the application notes.
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