- 您現(xiàn)在的位置：買賣IC網(wǎng) > Datasheet目錄45 > NCP1611BDR2G (ON Semiconductor)IC PFC CTLR HE ENHANCED 8-SOIC Datasheet資料下載
參數(shù)資料
| 型號(hào)： | NCP1611BDR2G |
| 廠商： | ON Semiconductor |
| 文件頁(yè)數(shù)： | 22/29頁(yè) |
| 文件大小： | 879K |
| 描述： | IC PFC CTLR HE ENHANCED 8-SOIC |
| 標(biāo)準(zhǔn)包裝： | 3,000 |
| 系列： | * |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)當(dāng)前第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)
NCP1611
http://onsemi.com
22
Figure 62. CCFF Practical Implementation
CCFF maximizes the efficiency at both nominal and light
load. In particular, the standby losses are reduced to a
minimum. Also, this method avoids that the system stalls
between valleys. Instead, the circuit acts so that the PFC
stage transitions from the n valley to (n + 1) valley or vice
versa from the n valley to (n 1) cleanly as illustrated by
Figure 63.
Figure 63. Clean Transition Without Hesitation Between Valleys
NCP1611 Ontime Modulation
Lets analyze the ac line current absorbed by the PFC
boost stage. The initial inductor current at the beginning of
each switching cycle is always zero. The coil current ramps
up when the MOSFET is on. The slope is (V
IN
/L) where L
is the coil inductance. At the end of the ontime (t
1
), the
inductor starts to demagnetize. The inductor current ramps
down until it reaches zero. The duration of this phase is (t
2
).
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| NCP1651DR2G | IC PFC CONTROLLER CCM/DCM 16SOIC |
| NCP1654BD133R2G | IC PFC CCM 133KHZ 8-SOIC |
| NCP1927DR2G | IC CTLR PFC/FLYBACK 16-SOIC |
| NCP380HMU21AATBG | IC CURRENT LIMIT SWITCH 6-UDFN |
| NCT1008DMT3R2G | TMP DIO MON/SMBUS 4CH 8WDFN |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| NCP1611GEVB | 制造商:ON Semiconductor 功能描述:PG - ACDC CONVERSION - Bulk 制造商:ON Semiconductor 功能描述:EVAL BOARD, NCP1611, POWER FACTOR CORRECTION; Silicon Manufacturer:On Semiconductor; Silicon Core Number:NCP1611; Kit Application Type:Power Management; Application Sub Type:Power Factor Correction (PFC) ;RoHS Compliant: Yes |
| NCP1612ADR2G | 功能描述:功率因數(shù)校正 IC RoHS:否 制造商:Fairchild Semiconductor 開關(guān)頻率:300 KHz 最大功率耗散: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel |
| NCP1612BDR2G | 制造商:ON Semiconductor 功能描述:ENHANCED HIGH-EFFICIENCY - Tape and Reel |
| NCP1612GEVB | 制造商:ON Semiconductor 功能描述:PG - ACDC CONVERSION - Bulk 制造商:ON Semiconductor 功能描述:EVAL BOARD, NCP1612, POWER FACTOR CORRECTION; Silicon Manufacturer:On Semiconductor; Silicon Core Number:NCP1612; Kit Application Type:Power Management; Application Sub Type:Power Factor Correction (PFC) ;RoHS Compliant: Yes |
| NCP1615ADR2G | 制造商:ON Semiconductor 功能描述:HV HIGH EFFICIENCY PFC CO - Tape and Reel |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。