Transcription of NCP1200 - PWM Current-Mode Controller for Low …
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NCP1200 - PWM Current-Mode Controller for Low …
Semiconductor Components Industries, LLC, 2015 April, 2015 Rev. 191 Publication Order Number: NCP1200 /DNCP1200 PWM Current-ModeController for Low-PowerUniversal Off-Line SuppliesHoused in SOIC 8 or PDIP 8 package, the NCP1200 represents amajor leap toward ultra compact Switchmode Power Supplies. Due toa novel concept, the circuit allows the implementation of a completeoffline battery charger or a standby SMPS with few externalcomponents. Furthermore, an integrated output short circuitprotection lets the designer build an extremely low cost AC DC walladapter associated with a simplified feedback an internal structure operating at a fixed 40 kHz, 60 kHz or100 kHz, the Controller drives low gate charge switching devices likean IGBT or a MOSFET thus requiring a very small operating to current mode control, the NCP1200 drastically simplifies thedesign of reliable and cheap offline converters with extremely lowacoustic generation and inherent pulse by pulse the current setpoint falls below a given value, the outputpower demand diminishes, the IC automatically enters the skip cyclemode and provides excellent efficiency at light loads.
NCP1200 www.onsemi.com 4 ELECTRICAL CHARACTERISTICS (For typical values TJ = +25°C, for min/max values TJ = −25°C to +125°C, Max TJ = …
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