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ROHM BD7682FJ-LB | Demoboard BD7682FJ-EVK-401
Low Noise Quasi-Resonant Control DC/DC converter IC for AC/DC Converter
Overview
| Topology | LLC Resonant Converter |
| Input voltage | 300-900 V |
| Switching frequency | 106-134 kHz |
| Output 1 | 25.2 V / 1 A |
| IC revision | 001 |
Description
The BD7682FJ-EVK-401, BD7682FJ-EVK-001 evaluation board outputs 24 V voltage from the input of 300 Vdc to 900 Vdc. The output current supplies up to 1 A. The BD768xFJ-LB series are Quasi-Resonant switching AC/DC converter for driving SiC (Silicon Carbide)–MOSFET. Using external switching MOSFET and current detection resistors provides a lot of flexibility in the design. Power efficiency is improved by the burst function and the reduction of switching frequency under light load conditions. This is the product that guarantees long time support in the Industrial market.
Features
- Quasi-resonant method(Maximum frequency control 120kHz)/Current mode
- Low power when load is light ( Burst operation)/ Frequency reduction function
- VCC pin : under voltage protection/ over voltage protection
- Leading-Edge-Blanking function
- Over-current protection (cycle-by-cycle)
- ZT Trigger mask function
- AC voltage protection
- Soft start
- Brown IN/OUT function
- Gate Clamp circuit
- MASK Function
Typical applications
- AC Adaptor
- Home appliances
- Industrial equipment
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(µH) | IRP,40K(A) | ISAT(A) | RDC max.(Ω) | Material | Q(%) | fres(MHz) | Mount | IR(A) | ISAT,10%(A) | Version | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-TI Radial Leaded Wire Wound Inductor, 2.2 µH, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-TI Radial Leaded Wire Wound Inductor | Inductance2.2 µH | – | Saturation Current4.3 A | DC Resistance0.02 Ω | – | – | Self Resonant Frequency65 MHz | MountTHT | Rated Current6.3 A | Saturation Current @ 10%5.7 A | VersionHeat Shrinking Tube | ||||
 | WE-GF SMT Wire Wound Inductor, 680 µH, 0.15 A | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-GF SMT Wire Wound Inductor | Inductance680 µH | Performance Rated Current0.15 A | – | DC Resistance30 Ω | – | Q-Factor30 % | Self Resonant Frequency3 MHz | MountSMT | Rated Current0.05 A | – | – | |||
 | WE-TI HV Radial Leaded Wire Wound Inductor (High Voltage), 1000 µH, – | Status Activei| Production is active. Expected lifetime: >10 years. | Inductance1000 µH | – | Saturation Current0.55 A | DC Resistance2.08 Ω | MaterialNiZn | – | Self Resonant Frequency1.8 MHz | MountTHT | Rated Current0.5 A | Saturation Current @ 10%0.55 A | VersionStandard |