作为ac/dc用功率因数校正转换器(power factor correction: pfc),本产品为所有需要改善功率因数的产品提供优良系统。pfc部采用临界模式(bcm),可通过zero current detection降低开关损耗和噪声。采用基于电阻的零电流检测方式,无需zcd用辅助绕组。

购买 *
* 本产品是标准级的产品。
本产品不建议使用于车载设备。

主要规格

 
型号 | bd7692fj-e2
status | 推荐品
封装 | sop-j8
包装数量 | 2500
最小独立包装数量 | 2500
包装形态 | taping
rohs | yes
长期供货计划 | 10 years

特性:

controller type

pfc

channel

1

zero detect

resistor

w/w input iec61000-3-2 class-c support

no

vin1 (typ.)[v]

2.5

reference voltage accuracy (%)

1.5

brown out

no

vcc discharge

no

ovp system

2 way

fet

-

ovp pin over voltage protection (l/a)

auto restart

vs pin over voltage protection (l/a)

auto restart

vin1(max.)[v]

26

vs dynamic ovp (l/a)

auto restart

vs short protection (l/a)

auto restart

br pin

no

is short protection (l/a)

auto restart

startup vout overshoot countermeasure function

yes

sw frequency (max.)[khz]

450

light load mode

no

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
  • low power consumption
  • vccuvlo
  • resister detection for zcd
  • switching loss reduction, noise reduction by zcd
  • dynamic and static ovp by the vs pin
  • high accuracy over current detection (±4 %)
  • error amplifier input short protection
  • stable mosfet gate drive by the clamper
  • protection function by the ovp pin
  • over voltage reduce by soft start
  • safe design by the is-gnd short timer operation

reference design / application evaluation kit

 
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