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开关电源IC价格

资料介绍
UC3844_45UNISONIC TECHNOLOGIES CO., LTD UC3844/45
HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS

DESCRIPTION

LINEAR INTEGRATED CIRCUIT

The UTC UC3844/3845 are high performance fixed frequency current mode controllers that specifically designed for Off-Line and DC to DC converter applications with minimal external parts count. The differences between UC3844 and UC3845 are the maximum duty cycle ranges and under-voltage lockout thresholds. The UC3844 ideally suited to off-line applications with UVLO thresholds of 16V(ON) and 10V(OFF), and UC3845 has UVLO thresholds of 8.5V(ON) and 7.6V(OFF) for lower voltage applications.



FEATURES

*Pb-free plating product number: UC3844L/UC3845L

* Operation output switching frequency up to 500 kHz * Output deadtime adjustable from 50% to 70% * Automatic feed f……
标签:UC3844
开关电源IC价格
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