Rohm Productdetail
Low Noise Quasi-Resonant Control DC/DC converter IC for AC/DC Converter - BD7682FJ-LB
The BD7682FJ-LB is a quasi-resonant controller-type DC/DC converter optimized for products equipped with an electrical outlet. Quasi-resonant operation enables soft switching and helps to keep EMI low, while utilizing an external switching MOSFET and current detection resistor provides greater design flexibility. Additional features include a brown out function that monitors the input voltage for system optimization and a burst mode function for reducing power during light loads. Multiple protection functions are also incorporated to provide greater reliability, such as soft start, burst mode, per-cycle overcurrent limiter, and overvoltage/overload protection. A gate clamp circuit is built in as well for optimizing SiC MOSFET drive.
SCT2H12NZ(1700V SiC-MOSFET) and BD7682FJ-LB(AC/DC Converter IC) Evaluation Board
BD7682FJ-LB-EVK-402 [Input: AC 400-690V , Output: 24V DC]
Apprication Note , Presentation Document , Buy Evaluation Board
BD7682FJ-EVK-301 [Input: AC 210-480V DC 300-900V , Output: 12V DC]
Application Note, Evaluation Board User Guide, Quick Start Guide, Inquiry Evaluation Board
Specifications:
FET
-
Controller Type
QR
Vin1(Min.)[V]
15.0
Vin1(Max.)[V]
27.5
SW frequency(Max.)[KHz]
120.0
Vcc OVP
Latch
BR PIN
Yes
Channel
1
Light Load mode
Yes
EN
No
Soft Start
Yes
Thermal Shut-down
Yes
Under Voltage Lock Out
Yes
Operating Temperature (Min.)[°C]
-40
Operating Temperature (Max.)[°C]
105
Features:
- Pin 8 : SOP-J8 Package (6.00mm × 4.90mm : 1.27mm pitch [TYP] )
- Quasi-resonant type (low EMI)
- Frequency reduction mode
- Low current consumption (19µA), during standby
- Low current consumption when no load (burst operation when light load)
- Maximum frequency (120kHz)
- CS Pin Leading-Edge Blanking
- VCC UVLO (Under Voltage Drop Out protection)
- VCC OVP (Over Voltage Protection)
- Per-cycle over-current protection circuit
- Soft start
- ZT trigger mask function
- Voltage protection function (brown out)
- ZT OVP (Over Voltage Protection)
- Gate-clamp circuit