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參數(shù)資料
| 型號： | R2A20111SPW0 |
| 廠商： | Renesas Technology Corp. |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | Power Factor Correction Controller IC |
| 中文描述： | 功率因數(shù)校正控制芯片 |
| 文件頁數(shù)： | 32/41頁 |
| 文件大?。?/td> | 310K |
| 代理商： | R2A20111SPW0 |
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R2A20111SP/DD
REJ03F0231-0100 Rev.1.00 Mar 28, 2007
Page 32 of 40
1-6. Tolerance of Limited Power Values
The tolerance of the limited power values depend on the tolerance of the CAI pin current. Since overcurrent detection
value is constant, set the RT resistance as illustrated in figure 17, so that the resistance does not exceed the overcurrent
detection level. Seen in figure 17, the key to select a switching device is not the tolerance in the limited power value
but in the current value limited by RT. The tolerance of this current ranges from – 10% to + 10%.
Rated power
Limited power
P
Input AC voltage
I
Limited power value
in case of only the
overcurrent protection
Overcurrent detection level
Current limited by RT
Figure 17 Overcurrent Detection Level and Power Limitation
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