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參數(shù)資料
| 型號(hào)： | NCP1217AP65G |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Enhanced PWM Current−Mode Controller for High−Power Universal Off−Line Supplies |
| 中文描述： | 0.5 A SWITCHING CONTROLLER, 71.5 kHz SWITCHING FREQ-MAX, PDIP8 |
| 封裝： | LEAD FREE, PLASTIC, DIP-8 |
| 文件頁數(shù)： | 15/18頁 |
| 文件大小： | 249K |
| 代理商： | NCP1217AP65G |
NCP1217, NCP1217A
http://onsemi.com
15
SoftStart (NCP1217A only)
The NCP1217A features an internal 1.0 ms softstart
activated during the power on sequence (PON). As soon as
V
CC
reaches VCC
OFF
, the peak current is gradually
increased from nearly zero up to the maximum clamping
level (e.g. 1.0 V). This situation lasts during 1.0 ms and
further to that time period, the peak current limit is blocked
to 1.0 V until the supply enters regulation. The softstart is
also activated during the Over Current Burst (OCP)
sequence. Every restart attempt is followed by a softstart
activation. Generally speaking, the softstart will be
activated when V
CC
ramps up either from zero (fresh
poweron sequence) or 5.6 V, the latchoff voltage occurring
during OCP. Figure 30 portrays the softstart behavior. The
time scales are purposely shifted to offer a better zoom
portion.
Figure 30. Softstart is activated during a startup sequence or an OCP condition
相關(guān)PDF資料 |
PDF描述 |
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| NCP1217D100R2G | Enhanced PWM Current−Mode Controller for High−Power Universal Off−Line Supplies |
| NCP1217P100G | Enhanced PWM Current−Mode Controller for High−Power Universal Off−Line Supplies |
| NCP1217P133G | Enhanced PWM Current−Mode Controller for High−Power Universal Off−Line Supplies |
| NCP1217P65G | Enhanced PWM Current−Mode Controller for High−Power Universal Off−Line Supplies |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| NCP1217D100R2 | 功能描述:電流型 PWM 控制器 Enhanced Current RoHS:否 制造商:Texas Instruments 開關(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 |
| NCP1217D100R2G | 功能描述:電流型 PWM 控制器 Enhanced Current Mode PWM RoHS:否 制造商:Texas Instruments 開關(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 |
| NCP1217D100R2G | 制造商:ON Semiconductor 功能描述:Pulse Width Modulation (PWM) Controller |
| NCP1217D133R2 | 功能描述:電流型 PWM 控制器 Enhanced Current RoHS:否 制造商:Texas Instruments 開關(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 |
| NCP1217D133R2G | 功能描述:電流型 PWM 控制器 Enhanced Current Mode PWM RoHS:否 制造商:Texas Instruments 開關(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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