AC/DC用 準諧振控制器型DC/DC轉換器IC - BD7684FJ-LB
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BD7684FJ-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。BD7684FJ-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。
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規格:
FET
-
Controller Type
QR
Vin1(Min.)[V]
15.0
Vin1(Max.)[V]
27.5
SW frequency(Max.)[kHz]
120.0
Vcc OVP
Auto Restart
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
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