NCP1360

Low Power Offline Constant Current & Constant Voltage Primary Side PWM Current-Mode Controller

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Overview

The NCP1360 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 operates in valley lockout quasi-resonant peak current mode control mode at high load to provide high efficiency. When the power on the secondary side starts to diminish, the controller automatically adjusts the duty-cycle then at lower load the controller enters in pulse frequency modulation at fixed peak current with a valley switching detection. This technique allows keeping the output regulation with tiny dummy load. Valley lockout at the first 4 valleys prevent valley jumping operation and then a valley switching at lower load provides high efficiency.

Features

No frequency clamp, 80 or 110 kHz Maximum Switching Frequency
Quasi-Resonant with Valley Switching Operation
Fixed Peak Current & Deep frequency foldback @ light load operation
Cycle by Cycle peak current limit
Wide Operation VCC range (up to 28 V)
Internal Temperature Shutdown
CS & Vs/ZCD pin Short and Open Protection
Constant Current Primary-side feedback eliminates secondary controller
±10% Current Regulation
Build-in soft-sart
Clamped Gate-drive Output for Mosfet
Less than 30 mW No-Load Performance

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Reference Price

NCP1360AABCYSNT1G

Last Shipments

TSOP-6

318G-02

260

REEL

3000

Flyback

Current Mode

Variable

Yes

6.5

Yes

2000 / 1000

Price N/A

NCP1360BABCYSNT1G

Last Shipments

TSOP-6

318G-02

260

REEL

3000

Flyback

Current Mode

Variable

Yes

6.5

Yes

2000 / 1000

Price N/A

NCP1360BACCYSNT1G

Last Shipments

TSOP-6

318G-02

260

REEL

3000

Flyback

Current Mode

Variable

Yes

6.5

Yes

2000 / 1000

Price N/A

NCP1360BBCCYSNT1G

Last Shipments

TSOP-6

318G-02

260

REEL

3000

Flyback

Current Mode

Variable

Yes

6.5

Yes

2000 / 1000

Price N/A

NCP1360BCCCYSNT1G

Last Shipments

TSOP-6

318G-02

260

REEL

3000

Flyback

Current Mode

Variable

Yes

6.5

Yes

2000 / 1000

Price N/A

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Offline Controllers | NCP1360

Low Power Offline Constant Current & Constant Voltage Primary Side PWM Current-Mode Controller

Overview

Product List

Email Sales