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FA13842 Datasheet(PDF) 1 Page - Fuji Electric |
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FA13842 Datasheet(HTML) 1 Page - Fuji Electric |
1 / 15 page FA13842, 13843, 13844, 13845 1 s Description The FA1384X series are CMOS current mode control ICs for off-line and DC-to-DC converters. These ICs can reduce start-up circuit loss and are optimum for high efficiency power supplies because of the low power dissipation achieved through changes in the CMOS fabrication process. These ICs can drive a power MOSFET directly. The high-performance, compact power supply can be designed with minimal external components . s Features • CMOS process • Low-power dissipation • Standby current 2 µA (max.), start-up current 30µA (max.) • Pulse-by-pulse current limiting • 5V bandgap reference • UVLO (Undervoltage lockout) with hysteresis • Maximum duty cycle FA13842, 13843: 96% FA13844, 13845: 48% • Pin-for-pin compatible with UC384X Note: Pins are fully compatible, but characteristics are not. When our ICs are applied to a power supply circuit designed for other manufactures' 384X series, the characteristics and safety features of the power supply must be checked. s Types of FA1384X series FA13842,13843,13844,13845 CMOS IC For Switching Power Supply Control s Dimensions, mm SOP-8 4.9 0.4±0.1 1.27±0.2 1 4 8 5 DIP-8 1 8 5 4 9.3 7.62 1.5 0~15˚ 0~15˚ 0.46±0.1 2.54±0.25 0.25 +0.1 –0.05 Type UVLO Maximum duty Package Start threshold Stop threshold cycle FA13842P 16.5V ±1V 9V ±1V 96% DIP FA13842N SOP FA13843P 9.6V ±1V 9V ±1V 96% DIP FA13843N SOP FA13844P 16.5V ±1V 9V ±1V 48% DIP FA13844N SOP FA13845P 9.6V ±1V 9V ±1V 48% DIP FA13845N SOP |
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