TOP242R

The TOP242R is designed as one kind of extended power, design flexible, EcoSmart, integrated off-line switcher device that has some points of features:(1)Extended power range to 250 W; (2)Features eliminate or reduce cost of external components; (3)Fully integrated soft-start for minimum stress/overshoot; (4)Externally programmable accurate current limit; (5)Wider duty cycle for more power, smaller input capacitor; (6)Separate line sense and current limit pins on Y/R packages; (7)Line under-voltage (UV) detection: no turn off glitches; (8)Line overvoltage (OV) shutdown extends line surge limit; (9)Line feed forward with maximum duty cycle (DCMAX) reduction rejects line ripple and limits DCMAX at high line; (10)Frequency jittering reduces EMI and EMI filtering costs; (11)Regulates to zero load without dummy loading; (12)132 kHz frequency reduces transformer/power supply size; (13)Half frequency option in Y/R packages for video applications; (14)Hysteretic thermal shutdown for automatic fault recovery; (15)Large thermal hysteresis prevents PC board overheating.

The absolute maximum ratings of the TOP242R can be summarized as:(1)Lead Temperature: 260 °C;(2)Operating Junction Temperature: -40 °C to 150 °C;(3)Storage Temperature: -65 °C to 150 °C;(4)frequency pin voltage: -0.3 V to 9 V;(5)multi-function pin voltage: -0.3 V to 9 V.etc. If you want to know more information about TOP242R, please download the datasheet in www.seekic.com or www.chinaicmart.com .