BD7682FJ-LB
AC/DC用 準諧振控制器型DC/DC轉換器IC
BD7682FJ-LB
AC/DC用 準諧振控制器型DC/DC轉換器IC
本產品為適合工具機市場，並保證可長期供應的RANK產品。是最適合近來各式應用裝置使用的產品。準諧振控制器型DC/DC轉換器BD7682FJ-LB提供具有插座的所有產品最適合的系統。因準諧振動作可軟開關，協助低EMI。可外接開關MOSFET及電流檢測電阻。因此可提供高自由度的電源設計。內建Brown Out功能，監控輸入電壓，保持系統在最佳狀態。內建BURST模式，減少輕負載時的功率。BD7682FJ-LB內建緩啟動、BURST模式、各循環的過電流限制、過電壓保護、過負載保護、Brown Out等各種功能。內建閘極箝位電路使SIC-MOSFET擁有最佳驅動狀態。
Check the evaluation board that designed to fully evaluate BD7682FJ-LB. Check other evaluation boards that support various power and topologies.
Product Detail
規格:
AC Monitor Function
No
BR UVLO
Yes
Current Detection Resistors
External
Dynamic Over Current Detection
No
External LATCH Function
No
FB OLP
Auto Restart
Frequency Reduction Function
Yes
VH Terminal UVLO
No
ZT OVP
Latch
FET
External
Controller Type
QR
Vin1(Min.)[V]
15
Vin1(Max.)[V]
27.5
SW Frequency (Max.)[kHz]
120
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
Package Size [mm]
4.9x6 (t=1.65)
功能:
- 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
Reference Design / Application Evaluation Kit
-
- Evaluation Board - BD7682FJ-LB-EVK-402
Isolation Fly-back Converter Quasi-Resonant Method Output 24 W 24 V
-
- Evaluation Board - BD7682FJ-EVK-301
The AUX board is able to operate with both AC and DC input voltages. It is therefore possible to derive the power directly from the grid or from the system DC link
-
- Evaluation Board - BD7682FJ-LB-EVK-302
The BD7682FJ is an AC/DC quasi-resonant flyback controller IC from ROHM Semiconductor and offers an Auxiliary Power Supply Solution if combined with the 1700 V SiC MOSFET (SCT2H12NZ). The BD7682FJ and SCT2H12NZ combined together have been used to develop an isolated 100 W 24 V output auxiliary power solution with a very accurate voltage regulation.
