bd7693fj-凯发线上登陆下载网址
临界模式控制 功率因数校正控制器icbd7693fj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。
bd7693fj的评估板信息。此外，rohm还提供支持各种功率段和拓扑的。
本产品不建议使用于车载设备。
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
no
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
reference design / application evaluation kit
-
- evaluation board - bd7693fj-evk-001
pfc bcm (boundary current mode) method output 200 w 400 v (bd7693fj)
| user guide | schematic | part list | layout (pdf) |
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- evaluation board - bd7693fj-evk-002
flyback type high power factor ac/dc converter, isolated 35 v 1.2 a
this evaluation board can output a voltage of 35v isolated from an input of 90vac to 264vac, and the maximum output current is 1.2a. the one-converter flyback type achieves a high power factor (pf > 0.9).
| user guide |
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