參數(shù)資料
型號(hào)： NCP1014AP100
廠商： ON SEMICONDUCTOR
元件分類： 穩(wěn)壓器
英文描述： VARISTOR 150V RMS 7MM RADIAL
中文描述： 1 A SWITCHING REGULATOR, 110 kHz SWITCHING FREQ-MAX, PDIP7
封裝： PLASTIC, DIP-8/7
文件頁(yè)數(shù)： 14/24頁(yè)
文件大?。?/td> 324K
代理商： NCP1014AP100
NCP1010, NCP1011, NCP1012, NCP1013, NCP1014
http://onsemi.com
14
Figure 20. Low Peak Current SkipCycle Guarantees NoiseFree Operation
100%
Peak current
at nominal power
25%
Skipcycle
current limit
Full power operation involves the nominal switching
frequency and thus avoids any noise when running.
Experiments carried on a 5.0 W universal mains board
unveiled a standby power of 300 mW @ 230 Vac with the
DSS activated and dropped to less than 100 mW when an
auxiliary winding is connected.
Frequency Jittering for Improved EMI Signature
By sweeping the switching frequency around its nominal
value, it spreads the energy content on adjacent frequencies
rather than keeping it centered in one single ray. This offers
the benefit to artificially reduce the measurement noise on
a standard EMI receiver and pass the tests more easily. The
EMI sweep is implemented by routing the V
CC
ripple
(induced by the DSS activity) to the internal oscillator. As a
result, the switching frequency moves up and down to the
DSS rhythm. Typical deviation is
frequency. With a 1.0 V peaktopeak ripple, the frequency
will equal 65 kHz in the middle of the ripple and will
increase as V
CC
rises or decrease as V
CC
ramps down.
Figure 21 portrays the behavior we have adopted.
3.3% of the nominal
Figure 21. The V
CC
ripple is used to introduce a frequency jittering on the internal oscillator sawtooth.
Here, a 65 kHz version was selected.
V
CC
Ripple
VCC
OFF
67.15 kHz
65 kHz
62.85 kHz
VCC
ON
Internal Sawtooth
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
NCP1014AP100G 功能描述:電流型 PWM 控制器 Low Standby Power Monolithic Switcher RoHS:否 制造商:Texas Instruments 開(kāi)關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14
NCP1014APL065R2G 功能描述:電流型 PWM 控制器 ANA 1 FREQ GULL WING RoHS:否 制造商:Texas Instruments 開(kāi)關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14
NCP1014APL100R2 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Self-Supplied Monolithic Switcher for Low Standby- Power Offline SMPS
NCP1014APL100R2G 功能描述:電流型 PWM 控制器 Low Standby Power Monolithic Switcher RoHS:否 制造商:Texas Instruments 開(kāi)關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14
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