BD7684FJ-LB
AC/DC用 准谐振控制器型 DC/DC转换器IC
BD7684FJ-LB
AC/DC用 准谐振控制器型 DC/DC转换器IC
本产品是面向工业设备市场的产品，保证可长期稳定供货。是适合这些用途的产品。准谐振控制器型DC/DC转换器BD7684FJ-LB为所有存在插口的产品提供优良的系统。为准谐振动作，实现了软开关，有助于实现低EMI。通过外接开关MOSFET及电流检测电阻，可实现高自由度的电源设计。内置欠压功能，可监控输入电压，有助于实现优良系统。内置脉冲串模式，可降低轻负载时的功耗。BD7684FJ-LB内置了软启动功能、脉冲串功能、逐周期过电流限制、过电压保护、过负荷保护、欠压功能等各种保护功能。内置了对SIC-MOSFET进行优良驱动的栅极箝位电路。
主要规格
特性：
FET
External
Controller Type
QR
Vin1(Min.)[V]
15
Vin1(Max.)[V]
27.5
SW frequency(Max.)[kHz]
120
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
Package Size [mm]
4.9x6.0 (t=1.65)
特点：
- 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
参考设计 / 应用评估套件
-
- Evaluation Board - BD7682FJ-LB-EVK-402
Isolation Fly-back Converter Quasi-Resonant Method Output 24 W 24 V
