Offline Controllers | NCP1339
概览
The NCP1339 is a highly integrated quasi-resonant flyback controller capable of controlling rugged and high-performance off-line power supplies as required by adapter applications. With an integrated active X-cap discharge feature and power savings mode, the NCP1339 can enable no-load power consumption below 10 mW for 65 W notebook adapters.The quasi-resonant current-mode flyback stage features a proprietary valley-lockout circuitry, ensuring stable valley switching. This system works down to the 6th valley and toggles to a frequency foldback mode to eliminate switching losses. When the loop tends to force below 25-kHz frequencies, the NCP1339 skips cycles to contain the power delivery.To help build rugged converters, the controller features several key protective features: an internal brown-out, a non-dissipative Over Power Protection for a constant maximum output current regardless of the input voltage, a latched over voltage protection through a dedicated pin.
- High Power Ac-Dc converters
- Ultra High Density Adapters
- Notebook Adapters
- Flat TV SMPS
- USB-Pd Adapters
- Loss-free Adjustable Over Power Protection
- Latched / Autorecovery Timer-Based Overload Protection
- Brown Out Protection
- High voltage startup current source
- Active Input Filter Capacitor Discharge Circuitry
- Latch input for OVP and OTP implementations
- Valley Switching Operation with Valley-Lockout
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Pb
A
H
P
SOIC-14 NB
1
260
REEL
2500
No
Flyback
Current Mode
Variable
Yes
9
Yes
Yes
Yes
30
500 / 800
Price N/A
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已停产
Pb
A
H
P
SOIC-14 NB
1
260
REEL
2500
No
Flyback
Current Mode
Variable
Yes
9
Yes
Yes
Yes
30
500 / 800
Price N/A
More Details
已停产
Pb
A
H
P
SOIC-14 NB
1
260
REEL
2500
No
Flyback
Current Mode
Variable
Yes
9
Yes
Yes
Yes
30
500 / 800
Price N/A
More Details
已停产
Pb
A
H
P
SOIC-14 NB
1
260
REEL
2500
No
Flyback
Current Mode
Variable
Yes
9
Yes
Yes
Yes
30
500 / 800
Price N/A
More Details
已停产
Pb
A
H
P
SOIC-14 NB
1
260
REEL
2500
No
Flyback
Current Mode
Variable
Yes
9
Yes
Yes
Yes
30
500 / 800
Price N/A
More Details
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Pb
A
H
P
SOIC-14 NB
1
260
REEL
2500
No
Flyback
Current Mode
Variable
Yes
9
Yes
Yes
Yes
30
500 / 800
Price N/A
More Details
已停产
Pb
A
H
P
SOIC-14 NB
1
260
REEL
2500
No
Flyback
Current Mode
Variable
Yes
9
Yes
Yes
Yes
30
500 / 800
Price N/A
More Details
已停产
Pb
A
H
P
SOIC-14 NB
1
260
REEL
2500
No
Flyback
Current Mode
Variable
Yes
9
Yes
Yes
Yes
30
500 / 800
Price N/A
More Details
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