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參數(shù)資料
| 型號(hào)： | NCP1216D133R2G |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | PWM Current-Mode Controller for High-Power Universal Off-line Supplies ; Package: SOIC-8 Narrow Body; No of Pins: 8; Container: Tape and Reel; Qty per Container: 2500 |
| 中文描述： | 0.5 A SWITCHING CONTROLLER, 146 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | LEAD FREE, SOIC-8 |
| 文件頁(yè)數(shù)： | 7/18頁(yè) |
| 文件大?。?/td> | 270K |
| 代理商： | NCP1216D133R2G |
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NCP1216, NCP1216A
http://onsemi.com
15
Figure 27.
Figure 28.
A simple resistor in series avoids any latchup in the controller
or one diode forces VCC to reach VCCON sooner.
D3
1N4007
1
2
45
8
6
7
3
+
CVCC
Cbulk
1
2
45
8
6
7
3
+
CVCC
Cbulk
Rbulk
> 4.7 k
SoftStart NCP1216A only
The NCP1216A features an internal 1.0 ms softstart
activated during the power on sequence (PON). As soon as
VCC reaches VCCOFF, the peak current is gradually
increased from nearly zero up to the maximum clamping
level (e.g. 1.0 V). This situation lasts during 1ms 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
VCC ramps up either from zero (fresh poweron sequence)
or 5.6 V, the latchoff voltage occurring during OCP.
Figure 29 portrays the softstart behavior. The time scales
are purposely shifted to offer a better zoom portion.
Figure 29. Softstart is activated during a startup sequence or an OCP condition
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| NCP1216D65 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:PWM Current-Mode Controller for High-Power Universal Off-Line Supplies |
| NCP1216D65G | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:PWM Current-Mode Controller for High-Power Universal Off-Line Supplies |
| NCP1216D65R2 | 功能描述:電流型 PWM 控制器 Current Mode PWM 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 |
| NCP1216D65R2G | 功能描述:電流型 PWM 控制器 Current Mode PWM 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 |
| NCP1216LEDGEVB | 功能描述:電源管理IC開(kāi)發(fā)工具 NON ISOLATED BUCK LED DRI RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
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