BD7694FJ
具有Brown Out功能 临界模式控制 功率因数校正控制器IC
BD7694FJ
具有Brown Out功能 临界模式控制 功率因数校正控制器IC
BD7694FJ是一款功率因数校正(Power Factor Correction:PFC)转换器,可为各种需要改善功率因数的产品提供理想系统。PFC部分采用临界模式,通过检测过零电流,可以降低开关损耗和噪声。内置了可减少总谐波失真(THD)的电路,因此可以支持 IEC61000-3-2 Class-C。
提供支持各种功率段和拓扑的评估板。
主要规格
特性:
Controller Type
PFC
Channel
1
Zero Detect
Auxiliary Winding
W/W Input IEC61000-3-2 Class-C Support
Yes (LowTHD)
Vin1 (Typ.)[V]
2.5
Reference Voltage Accuracy (%)
1.5
Brown Out
Yes
VCC Discharge
Yes
OVP System
1 way
FET
-
VS Pin Over Voltage Protection (L/A)
Auto Restart
Vin1(Max.)[V]
38
VS Short Protection (L/A)
Auto Restart
BR PIN
Yes
Startup VOUT Overshoot Countermeasure Function
Yes
Light Load mode
Yes
EN
No
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)
特点:
- Boundary Conduction Mode PFC
- Low THD Circuit Incorporation
- Low Power Consumption
- VCC UVLO Function
- ZCD by Auxiliary Winding
- Static OVP by the VS Pin
- Error Amplifier Input Short Protection
- Stable MOSFET Gate Drive
- Soft Start