Power Electronics M-Power2B series A multi chip power device for a Multi-Oscillated Current Resonant type Converter ■ Features ・Power efficiency keeps high from a light load to a rated load. ・Low noise is achieved because of soft switching technique. ・Easy to design high reliabilit y SMPS due to various protection function. ・External components drastic reduction from former-model. ■ Applications ・SMPS for AV equipments (LCD-TV and PDP etc.) ・SMPS for OA equipments (Copier etc.) ■ Circuit Configuration ■ Protection Function ・Overcurrent protection, overvoltage protection, low input voltage protection ・High-side MOS short protection, overheat protection ■ Switching Waveforms ■ Line-up Type name MP2B5038 MP2B5052 MP2B5085 MP2B5150 MOSFET Control Forming Sample Mass IC Production VDS RDS (on) VCC (on) 500V 0.38Ω 11.6V 500V 0.52Ω 500V 0.85Ω 500V 1.50Ω F237 Ready 2009/4 ■Comparison of external components 17 parts eliminated in total * Comparison of primary-side circuit of our demo board ■Power Efficiency Characteristic Output power vs efficiency characteristic DC/DC PFC+DC/DC 95.3%(Input:385Vdc, Output:24Vdc) 88.4%(AC100V, Output:24Vdc) 90.7%(AC200V, Output:24Vdc) ■Outline Figure ■Input power in the stand-by mode Standby output power vs input power characteristic PFC+DC/DC 0.5W and below (AC240V, Output:No load) 0.8W and below (AC240V, Output:0.2W) * Board with PFC (PFC is stopped in standby mode) ■Pin assignment Pin Symbol Function 4.5 S1 MOSFET (Q1) source 6 IS Current detection 8 VOC Power supply 9 GND GND 10 VREF Reference voltage output 11 FB Input feedback signal for constant voltage control 12 CS Select the Soft-start duration 13 BO Brown out detection 14 VW Q1 turn-on and off timing detection 16 VH Start-uP Circuit 18,19 D1,S2 Q1 drain Q2 source 20 G2 Q2 gate 22,23 D2 Q2 drain Information in this catalog is subject to change without notice. 2009-4