參數(shù)資料
型號: UC2845AQTR
廠商: Texas Instruments, Inc.
英文描述: OMNIFET II: FULLY AUTOPROTECTED POWER MOSFET
中文描述: 電流模式開關電源控制器
文件頁數(shù): 6/7頁
文件大?。?/td> 517K
代理商: UC2845AQTR
Off-line Flyback Regulator
Slope Compensation
APPLICATIONS DATA (cont.)
UC1842A/3A/4A/5A
UC2842A/3A/4A/5A
UC3842A/3A/4A/5A
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
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.
UNITRODE INTEGRATED CIRCUITS
7 CONTINENTAL BLVD.
MERRIMACK, NH 03054
TEL. (603) 424-2410
FAX (603)424-3460
6
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