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參數(shù)資料
| 型號： | UC3842AM |
| 廠商： | MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | CURRENT MODE PWM CONTROLLER |
| 中文描述： | 1 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDIP8 |
| 封裝： | ROHS COMPLIANT, PLASTIC, DIP-8 |
| 文件頁數(shù)： | 7/8頁 |
| 文件大?。?/td> | 463K |
| 代理商： | UC3842AM |
UNITRODE CORPORATION
7 CONTINENTAL BLVD.
MERRIMACK, NH 03054
TEL. (603) 424-2410
FAX (603) 424-3460
UC1842/3/4/5
UC2842/3/4/5
UC3842/3/4/5
OFFLINE FLYBACK REGULATOR
SLOPE COMPENSATION
A fraction of the oscillator ramp can be resistively
summed with the current sense signal to provide slope
compensation for converters requiring duty cycles over
50%.
Note that capacitor, C forms a filter with R2 to suppress
the leading edge switch spikes.
Power Supply Specifications
1. Input Voltage
95VAC to 130VA
(50 Hz/60Hz)
3750V
40kHz
70%
2. Line Isolation
3. Switching Frequency
4. Efficiency @ Full Load
5. Output Voltage:
A. +5V,
±
5%; 1A to 4A load
Ripple voltage: 50mV P-P Max
B. +12V,
±
3%; 0.1A to 0.3A load
Ripple voltage: 100mV P-P Max
C. -12V ,
±
3%; 0.1A to 0.3A load
Ripple voltage: 100mV P-P Max
7
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