Datasheet BM1Z102FJ, BM1Z103FJ (Rohm) - 7

BM1Z102FJ BM1Z103FJ 1 AC Voltage Zero Cross Detection – continued 1.4 DSET Pin Setting
The DSET pin is connected to internal power supply VREF and the DSET pin voltage is depended on the value of RDSET. The zero cross delay time is set by the level of DSET pin. Set it to one of the values in Table 1. VREF
DSET
Internal Control Circuit RDSET Figure 8. Circuit Diagram of DSET Pin L – N L – N Voltage Voltage tDELAY tDELAY tDELAY tDELAY ACOUT – GND ACOUT – GND Voltage Voltage Figure 9. Zero Cross Delay Time (BM1Z102FJ) Figure 10. Zero Cross Delay Time (BM1Z103FJ) Table 1. Zero Cross Delay Time by Adjusting RDSET RDSET Zero Cross Delay Time tDELAY (μs) Open 0 330 kΩ +200 68 kΩ -200 GND -480 www.rohm.com
TSZ02201-0F1F0A200610-1-2
© 2019 ROHM Co., Ltd. All rights reserved. 7/20 TSZ22111 • 15 • 001
12.Mar.2020 Rev.00 1
Document Outline General Description Features Applications Key Specifications Package Lineup Typical Application Circuit Pin Configuration Pin Descriptions Block Diagram Description of Blocks 1. AC Voltage Zero Cross Detection 1.1 Startup Sequence 1.2 VH_AC1 Pin UVLO 1.3 VH_AC1 and VH_AC2 Pins Noise Filter 1.4 DSET Pin Setting 2. DC Voltage Monitor Circuit Absolute Maximum Ratings Thermal Loss Recommended Operating Conditions Electrical Characteristics Typical Performance Curves I/O Equivalence Circuit Operational Notes 1. Reverse Connection of Power Supply 2. Power Supply Lines 3. Ground Voltage 4. Ground Wiring Pattern 5. Recommended Operating Conditions 6. Inrush Current 7. Testing on Application Boards 8. Inter-pin Short and Mounting Errors 9. Unused Input Pins 10. Regarding the Input Pin of the IC 11. Ceramic Capacitor 12. Thermal Shutdown Circuit (TSD) 13. Over Current Protection Circuit (OCP) Ordering Information Marking Diagram Physical Dimension and Packing Information Revision History