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參數(shù)資料
| 型號(hào)： | R1280D002A |
| 廠商： | Ricoh Co., Ltd. |
| 英文描述： | 2CH PWM DC/DC Controller |
| 中文描述： | 2聲道的PWM DC / DC控制器 |
| 文件頁(yè)數(shù)： | 13/26頁(yè) |
| 文件大?。?/td> | 344K |
| 代理商： | R1280D002A |
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Rev. 1.10 - 13 -
G
Test Circuit 17
G
Test Circuit 18
C1
C2
EXT1 EXT2
GND
V
IN
CE
Vrefout
DTC1 DTC2
V
FB1
V
FB2
OSCILLOSCOPE
OSCILLOSCOPE
EXT1 EXT2
GND V
IN
CE
Vrefout
DTC1 DTC2
V
FB1
V
FB2
C1
C4
C3
C2
OSCILLOSCOPE
Typical Characteristics shown in the following pages are obtained with test circuits shown above.
G
Test Circuit 1,2: Typical Characteristic 4)
Test Circuit 3: Typical Characteristic 6)
Test Circuit 4: Typical Characteristic 7)
Test Circuit 5: Typical Characteristic 8)
Test Circuit 6: Typical Characteristics 9) 10)
Test Circuit 7: Typical Characteristic 11)
Test Circuit 8: Typical Characteristic 12)
Test Circuit 9: Typical Characteristics 13) 14)
R1280D002A/C
G
Test Circuit 10,11: Typical Characteristics 4) 5)
Test Circuit 12: Typical Characteristic 6)
Test Circuit 13: Typical Characteristic 7)
Test Circuit 14: Typical Characteristic 8)
Test Circuit 15: Typical Characteristics 9) 10)
Test Circuit 16: Typical Characteristic 11)
Test Circuit 17: Typical Characteristics 15) 16)
Test Circuit 18: Typical Characteristics 17) 18)
Standard Circuit Example: Typical Characteristics 1) 2) 3) 19) 20)
R1280D002B
Note) Capacitors' values of test circuits
Capacitors: Ceramic Type:
C1=4.7
μ
F, C2=1.0
μ
F, C3=C4=1000pF
Efficiency
η
(%) can be calculated with the next formula:
η
=(V
OUT1
×
I
OUT1
+V
OUT2
×
I
OUT2
)/(V
IN
×
I
IN
)
×
100
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| R1280D002A-TR | 2CH PWM DC/DC Controller |
| R1280D002B | 2CH PWM DC/DC Controller |
| R1280D002B-TR | Linear Sensor Photodiode Array; 1536x1 Sensor-Elements Organization; 400 Dots-Per-Inch (DPI) Sensor Pitch; High Linearity and Uniformity; Wide Dynamic Range 4000:1 (72 dB); Low Image Lag 0.5% Typ; Operation to 8MHz |
| R1280D002C | |
| R1280D002C-TR | |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| R1280D002A-TR | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:2CH PWM DC/DC Controller |
| R1280D002B | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:2CH PWM DC/DC Controller |
| R1280D002B-TR | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:2CH PWM DC/DC Controller |
| R1280D002C | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:2CH PWM DC/DC Controller |
| R1280D002C-TR | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:2CH PWM DC/DC Controller |
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