FA13843P

FA13842,13843,13844,13845 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 . CMOS IC FA13842,Power 13843, 13844, 13845 For Switching Supply Control s Dimensions, mm SOP-8 8 5 1 4 4.9 +0.1 –0.05 s Features CMOS process Low-power dissipation Standby current 2µA (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. 6.0±0.2 3.9 0.4±0.1 1.27±0.2 DIP-8 8 5 s Types of FA1384X series Type UVLO Start threshold Stop threshold FA13842P 16.5V± 1V 9V± 1V FA13842N FA13843P 9.6V± 1V 9V± 1V FA13843N FA13844P 16.5V± 1V 9V± 1V FA13844N FA13845P FA13845N 9.6V± 1V 9V± 1V Maximum duty Package cycle 96% DIP SOP 96% DIP SOP 48% DIP SOP 48% DIP SOP 1 9.3 1.5 4 6.4 3.0min 4.5max 3.3 0~8° 0...