MCU
     CMOS LDO Linear Regulator
     Dual LDO Linear Regulator
     Bipolar LDO Linear Regulator
     Step-Up DC/DC Converter
     Step-Down DC/DC Converter
     Linear Constant LED Driver
     Charger Pump
     LED Backlight Driver
     LED Screen Driver
     Audio AMPLIFIER
     AC/DC Converter
     AC/DC Converter Supply
     Voltage detector/Reset IC
     Li-ion Battery Charger
     MOSFET
     MOSFET for LED Screen & BJT
ME8401

Descriptionú║
The ME8401 is a current-mode PFC controller operating in Transition Mode (TM). Pin-to-pin compatible with the predecessor ME8401, it offers improved performance. The highly linear multiplier includes a special circuit, able to reduce AC input current distortion, that allows wide-range-mains operation with an extremely low THD, even over a large load range. The output voltage is controlled by means of a voltage-mode error amplifier and a precise (1% @Tj =25íŃC) internal voltage reference. The device features extremely low consumption (í▄120 uA before start-up and <2mA running) and includes a disable function suitable for IC remote ON/OFF, which makes it easier to comply with energy saving norms (Blue Angel, EnergyStar, Energy2000, etc.). An effective two-step OVP enables to safely handle overvoltage either occurring at start-up or resulting from load disconnection. The totem-pole output stage, capable of 600mA source and 800mA sink current, is suitable for big MOS-FET or IGBT drive which, combined with the other features, makes the device an excellent low-cost solution for EN61000-3-2 compliant SMPSs up to 300W.
Featuresú║
í˝Transition-Mode control of PFC pre-regulators
í˝Proprietary multiplier design for minimum THD of AC input current
í˝Very precise adjustable output overvoltage protection
í˝Ultra-low(í▄120uA) start-up current
í˝Extended IC supply voltage range
í˝On-chip filter on current sense
í˝Disable function
í˝1%(@ Tj = 25 íŃC) internal reference voltage
í˝-600/+800mA totem pole gate driver with UVLO pull-down and voltage clamp
í˝DIP-8/SOP-8 packages
Applicationsú║
PFC pre-regulators for:
í˝IEC61000-3-2 compliant SMPS(TV, Desktop PC, Monitor) up to 300W
í˝Hi-end AC-DC adapter/charger
í˝Entry level server & web server
Nanjing Micro One Electronics Inc. 5th Floor,Building No.1, No.699-8 Xuanwu Road, Xuzhuang software Park,Nanjing
Tel:86-25-84731186    Fax:86-25-84731136 ╦ŇICP▒Ş12033088║┼