Featured Products Medium power (20W to 150W Class) AC/DC Converter ICs BM1Cxxx Series AC/DC Converter ICs PFC OVP PFC Output 2-Stage Switching Function PFC stopped even during feedback resistor failure Step-up ratio switching is implemented based on the AC input voltage, ensuring high efficiency even with a lower input voltage FUSE AC 85-265Vac Filter 15.0V 5.0A Diode Bridge P_VS Vcc QR ZT Timeout Function QR_ZT SBD P_IS Csw QR_OUT QR_OUT 18 17 VH_IN (N.C.) 16 15 14 P_TIMER QR_OUT P_OUT ERROR AMP. P_IS QR_CS P_VS 13 12 11 10 P_IS QR_CS P_VS P_OVP QR_CS RS The ZT Timeout function turns the MOSFET on after the timer when bottom detection cannot be performed, such as during startup or voltage drops. QR_FB PC BM1CxxxF PFC ON/OFF Function BR Vcc GND QR_FB QR_ZT COMP P_EO BR 1 2 3 4 5 6 7 Vcc QR_FB QR_ZT P_RT P_OFFSET 8 PFC on/off possible through optional power for improved efficiency at light loads 9 BR PC CPU High efficiency across the entire load range Improved efficiency even with no load Multiple protection functions The PFC stop function can be freely set based on load, ensuring high efficiency operation across the entire load range An X Cap. Discharge function is built in for improved no-load standby power efficiency Multiple built-in protection functions protect component parts and ensure stable operation Series Features/Lineup Common Specifications PFC Functions QR Functions ■ PFC+QR combo IC available ■ 650V startup circuit ■ Vcc pin over-/under-voltage protection ■ Brownout function ■ External latch pin function ■ QR burst operation/frequency reduction Function during light loads ■ QR max. frequency: 120kHz ■ QR CS pin OPEN protection/OCP functions ■ QR overcurrent limiter AC compensation function ■ QR soft start function ■ QR secondary overcurrent protection ■ QR_ZT pin 2-stage timeout/OVP function ■ PFC critical mode (voltage control) ■ PFC ZCD reduces switching loss and noise ■ PFC variable max. freq. control (<400kHz) ■ PFC dynamic & static OVP function ■ PFC output level switching function ■ PFC ON/OFF level setting function AC/DC Converter ICs AC/DC Converter ICs (PWM Type with Built-In MOSFET) ≤ 20W Class BM2Pxxx Series AC/DC Converter ICs Medium Power Class AC/DC Converter ICs (PFC+Quasi-Resonant Type with External MOSFET) ≤ 150W Class PFC+QR Controller Type (BM1Cxxx Series) Control Method SOP18 Package (11.2 x 7.8 x 2.0mm) PFM Protection Functions BR*1 Vcc OVP*2 Oscillating Frequency ○ Latch 120kHz AC/DC Converter ICs (Quasi-Resonant Type with External MOSFET) ≤ 150W Class QR Controller Type (BM1Qxxx Series) Part No. SOP-J8 Package (4.9 x 6.0 x 1.65mm) Control Method Protection Functions BR*1 Vcc OVP*2 Oscillation Frequency BM1Q001FJ PFM − Auto Restart 120kHz BM1Q002FJ PFM − Latch 120kHz AC/DC Converter ICs (PWM Type with External MOSFET) ≤ 100W Class PWM Controller Type (BM1Pxxx Series) SOP-J8 Package (4.9 x 6.0 x 1.65mm) Protection Functions BR*1 Vcc OVP*2 Oscillation Frequency PWM ○ Auto Restart 65kHz BM1P062FJ PWM ○ Latch 65kHz BM1P101FJ PWM ○ Auto Restart 100kHz BM1P102FJ PWM ○ Latch 100kHz Part No. Control Method BM1P061FJ *1: BR - Brown In/Out voltage protection function *2: Vcc OVP - Vcc pin over-/under-voltage protection function The content specified in this document is correct as of October 1st, 2014. [O_026] Catalog No.56O6741E-B 10.2014 ROHM © ROHM