NCP1360, NCP1365 Low Power Offline Constant Current & Constant Voltage Primary Side PWM Current-Mode Controller with/without High Voltage Startup Current Source

PublishTime：2021-06-24

■The NCP1360/65 offers a new solution targeting output power levels from a few watts up to 20 W in a universal−mains flyback application. Thanks to a novel method this new controller saves the secondary feedback circuitry (opto−coupler and TL431 reference) while achieving excellent line and load regulation.
■The NCP1360/65 operates in valley−lockout quasi−resonant peak current mode control mode at nominal load to provide high efficiency.When the secondary−side power starts diminishing, the switching frequency naturally increases until a voltage−controlled oscillator (VCO) takes the lead, synchronizing the MOSFET turn−on in a drain−source voltage valley. The frequency is thus reduced by stepping into successive valleys until the number 4 is reached. Beyond this point, the frequency is linearly decreased in valley−switching mode until a minimum is hit. This technique keeps the output in regulation with the tiniest dummy load. Valley lockout during the first four drain−source valleys prevents erratic discrete jumps and provides good efficiency in lighter load situations.
■Features
●Primary−Side Feedback Eliminates Opto−coupler and TL431 Reference
●±5% Voltage Regulation
●±10% Current Regulation
●560 V Startup Current Source
●No Frequency Clamp, 80 or 110 kHz Maximum Switching Frequency Options
●Quasi−Resonant Operation with Valley Switching Operation
●Fixed Peak Current & Deep Frequency Foldback @ Light Load Operation
●External Constant Voltage Feedback Adjustment
●Cycle by Cycle Peak Current Limit
●Build−In Soft−Start
●Over & Under Output Voltage Protection
●Cable Drop Compensation (None, 150 mV, 300 mV or 450 mV option)
●Wide Operation V-CCRange (up to 28 V)
●Low Start−up Current (2.5 μA typ.) with NCP1360
●Clamped Gate−drive Output for MOSFET
●CS & Vs/ZCD pin Short and Open Protection
●Internal Temperature Shutdown
●Less than 10 mW No−Load Performance at High Line with NCP1365 Version
●Less than 30 mW No−Load Performance at High Line with NCP1360 Version
●These are Pb−Free Devices

Brand of Product：	ON Semiconductor
Part#：	NCP1360 、 NCP1365 、 NCP1365AABCYDR2G 、 NCP1365ACBAXDR2G 、 NCP1365BABCYDR2G 、 NCP1365BAAAYDR2G 、 NCP1360AABCYSNT1G 、 NCP1360BABCYSNT1G 、 NCP1360BBCCYSNT1G 、 NCP1360BCCCYSNT1G 、 NCP1360BACCYSNT1G More Part#
Product Category：	Low Power Offline Constant Current 、 Constant Voltage Primary Side PWM Current-Mode Controller More
Application：	[ Low power ac−dc Adapters for Chargers ][ Ac−dc USB chargers for Cell Phones ][ Ac−dc USB chargers for Tablets ][ Ac−dc USB chargers for Cameras ] More
Data Type：	Datasheet More
Safety & Environment Standards：	More
Operating Temperature：	Please see the document for details
Qualification Grade：	More
Qualification Approval：	More
Package：	SOIC−7;TSOP−6
Language：	English Chinese Chinese and English Japanese
Date of Creation：	June, 2018
Version Number：	Rev. 7
Data Encoding：	NCP1360/D
Data Size：	585 KB

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