Datasheet > NCP1339

NCP1339

更新时间： 2024-09-20 00:58:55

品牌	Logo	应用领域
安森美 - ONSEMI		/
页数	文件大小	规格书
31页	329K
描述
High-Voltage, Quasi-Resonant Controller featuring Valley Lock-Out

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NCP1339 数据手册

NCP1339

High-Voltage, Quasi-

Resonant Controller

featuring Valley Lock-Out

and Power Saving Mode

www.onsemi.com

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 45 W notebook adapters.

SOIC−14 NB

(LESS PIN 13)

D SUFFIX

The quasi−resonant current−mode flyback stage features a

proprietary valley−lockout circuitry, ensuring stable valley switching.

CASE 751AN

This system works down to the 6 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.

MARKING DIAGRAM

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.

NCP1339xG

AWLYWW

NCP1339 = Specific Device Code

= C, D, E, F, G or H

= Assembly Location

= Wafer Lot

= Year

= Work Week

Features

• High−voltage Current Source for Lossless Start−up Sequence

• X2 Capacitors Discharge Capability

• Power Savings Mode (PSM) for Extremely Low No−Load Power:

= Pb−Free Package

• Wide V Range from 10 V to 28 V

• Latching−off 28−V V Over−Voltage Protection

• Abnormal Overcurrent Fault Protection for Winding Short Circuit or

PIN CONNECTIONS

Inductor Saturation Detection

REM

• Integrated High−Voltage Startup Circuit with Brown−Out Detection

• Fault Input for Severe Fault Conditions, NTC Compatible for OTP

OPP

ZCD

Fault

• Circuit Latching Off In Severe Fault Detection (OVP or OTP)

• Internal Temperature Shutdown

VCC

DRV

GND

• Valley Switching Operation with Valley−Lockout for Noise−Free

Operation

• Frequency Fold−back for Highest Performance in Standby Mode

• 25−kHz Clamp and Skip Mode

• Timer−Based Overload Protection (Latched or Auto−Recovery

ORDERING INFORMATION

See detailed ordering and shipping information in the package

Options)

dimensions section on page 30 of this data sheet.

• Adjustable Overpower Protection

• 4−ms Soft−Start Timer

• ZCD Blanking Time to Ignore Leakage Ringing at Turn−Off:

3 ms for C, D and E versions and 0.7 ms for F, G or H versions

• These Devices are Pb−Free and are RoHS Compliant

This document contains information on some products that are still under development.

ON Semiconductor reserves the right to change or discontinue these products without

notice.

Publication Order Number:

August, 2015 − Rev. 3

NCP1339/D

12 3 4 5 6 7...31

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与NCP1339相关器件

型号	品牌	获取价格	描述	数据表
NCP1339_16	ONSEMI	获取价格	High-Voltage, QuasiResonant Controller featuring Valley Lock-Out and Power Saving Mode
NCP1339CDR2G	ONSEMI	获取价格	High-Voltage, QuasiResonant Controller featuring Valley Lock-Out and Power Saving Mode
NCP1339DDR2G	ONSEMI	获取价格	High-Voltage, QuasiResonant Controller featuring Valley Lock-Out and Power Saving Mode
NCP1339EDR2G	ONSEMI	获取价格	High-Voltage, QuasiResonant Controller featuring Valley Lock-Out and Power Saving Mode
NCP1339FDR2G	ONSEMI	获取价格	High-Voltage, QuasiResonant Controller featuring Valley Lock-Out and Power Saving Mode
NCP1339GDR2G	ONSEMI	获取价格	High-Voltage, QuasiResonant Controller featuring Valley Lock-Out and Power Saving Mode
NCP1339HDR2G	ONSEMI	获取价格	High-Voltage, QuasiResonant Controller featuring Valley Lock-Out and Power Saving Mode
NCP1339IDR2G	ONSEMI	获取价格	High-Voltage, QuasiResonant Controller featuring Valley Lock-Out and Power Saving Mode
NCP1339JDR2G	ONSEMI	获取价格	High-Voltage, QuasiResonant Controller featuring Valley Lock-Out and Power Saving Mode
NCP133AMX090TAG	ONSEMI	获取价格	LDO 稳压器，500 mA，超低漏，高 PSRR，带偏置轨

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