Datasheet DC/DC Driver Power Factor Correction Controller IC BD7690FJ General Description Key Specifications BD7690FJ is Power Factor Correction for AC/DC Input Voltage Range: 10V to 26V supplies the system which is suitable for all the products Operating Current: 310uA(Typ) needing power factor improvement. The PFC adopts Max Frequency: 220kHz(RT:220k ) boundary conduction mode (BCM), and switching loss Operating Temperature Range: -40C to +105C reduction and noise reduction are possible by Zero Current Detection (ZCD). ZCD is detected by auxiliary Package(s) W(Typ) x D(Typ) x H(Max) winding. SOP-J8 4.90mm x 6.00mm x 1.65mm Features Boundary Conduction Mode Low Power consumption VCCUVLO The ZCD detection by auxiliary winding Switching loss reduction, noise reduction by ZCD Improving the efficiency by the max frequency control Dynamic and Static OVP by the VS pin High accuracy over current detection( 4%) SOP-J8 Error amplifier input short protection Restart timer Stable MOSFET gate drive by the Clamper Applications AC adopter, TV, Lighting equipment, Refrigerator, etc. Typical Application Circuit(s) 400V Diode VS Bridge CS VCC 8 7 6 5 VCC OUT GND ZCD BD7690FJ VS EO RT CS 1 2 3 4 VS CS Figure 1. Application Circuit Product structure : Silicon monolithic integrated circuit This product has no designed protection against radioactive rays .w ww.rohm.com TSZ02201-0F2F0A200280-1-2 2016 ROHM Co., Ltd. All rights reserved. 1/24 TSZ22111 14 001 28.Dec.2020 Rev.003 Contents General Description ...................................................................................................................................................................... 1 Contents ........................................................................................................................................................................................ 2 Pin Configuration(s) ..................................................................................................................................................................... 3 Pin Description(s) ......................................................................................................................................................................... 3 Block Diagram(s) .......................................................................................................................................................................... 3 Description of Block(s)................................................................................................................................................................. 4 Operation mode of the protective circuit .................................................................................................................................... 9 Absolute Maximum Ratings (Ta = 25C) ................................................................................................................................... 10 (Note 1) Thermal Resistance ........................................................................................................................................................... 10 Recommended Operating Conditions Ta=25C ................................................................................................................. 10 Electrical Characteristics (Unless otherwise specified VCC=15V Ta=25C) .......................................................................... 11 I/O Equivalence Circuits ............................................................................................................................................................. 14 Application Example .................................................................................................................................................................. 14 Attention in the board design .................................................................................................................................................... 16 About parts placement ............................................................................................................................................................... 16 Operational Notes ....................................................................................................................................................................... 18 Ordering Information .................................................................................................................................................................. 20 Marking Diagrams ....................................................................................................................................................................... 20 Physical Dimension, Tape and Reel Information ..................................................................................................................... 21 Revision History ......................................................................................................................................................................... 22 Product structure : Silicon monolithic integrated circuit This product has no designed protection against radioactive rays .w ww.rohm.com TSZ02201-0F2F0A200280-1-2 2016 ROHM Co., Ltd. All rights reserved. 2/24 TSZ22111 14 001 28.Dec.2020 Rev.003