KA3844

fixed frequency current mode PWM controller

Description The3842A(AM)/43A(AM)/44A(AM)/45A(AM)arefixedfrequencycurrentmodePWMcontroller.TheyarespeciallydesignedforOFF−LineandDCtoDCconverterapplicationswithaminimalexternalcomponents.Internallyimplementedcircuitsincludeatrimmedoscillatorforprecisedutycycle

KA3844

CurrentMode PWM Controller

DESCRIPTION KA3842/43/44/45arefixedfrequencycurrentmodePWM controller.TheyarespeciallydesignedforOFF−LineandDCtoDCconverterapplications withaminimalexternalcomponents.Internallyimplementedcircuitsincludeatrimmed oscillatorforprecisedutycyclecontrol,atemperatu

KA3844B

SMPS Controller

TheKA3842B/KA3843B/KA3844B/KA3845Barefixedfrequencycurrent-modePWMcontroller.TheyarespeciallydesignedforOff-LineandDC-to-DCconverterapplicationswithminimumexternalcomponents.Theseintegratedcircuitsfeatureatrimmedoscillatorforprecisedutycyclecontrol,atemperatu

KA3844B

最高 500 kHz 的 PWM 控制器可编程频率; •低启动电流\n•最大占空箝位\n•带滞后的UVLO\n•工作频率高达500KHz\n;

KA3842B/KA3843B/KA3844B/KA3845B是固定频率电流模式PWM控制器。它们专门设计用于外部组件最少的离线和DC-DC转换器应用。这些集成电路带有用于精确占空比控制的微调振荡器、温度补偿参考、高增益误差放大器、电流感应比较器和非常适合用于驱动功率MOSFET的高电流图腾柱输出。KA3842B和KA3844B具有的欠压闭锁(UVLO)阈值为16V（开）和10V（关），KA3843B和KA3845B为8.5V（开）和7.9V（关），KA3842B和KA3843B可在100%占空比范围内进行操作。KA3844B和KA3845B可使用50%的占空比进行操作。

KA3844BD

SMPS Controller

TheKA3842B/KA3843B/KA3844B/KA3845Barefixedfrequencycurrent-modePWMcontroller.TheyarespeciallydesignedforOff-LineandDC-to-DCconverterapplicationswithminimumexternalcomponents.Theseintegratedcircuitsfeatureatrimmedoscillatorforprecisedutycyclecontrol,atemperatu

KA3844B

SMPS Controller

KA3844B

SMPS Controller

KA3844BD

SMPS Controller

KA3844BD

SMPS Controller

KA3844B

Package：8-DIP（0.300"，7.62mm）；包装：卷带（TR）剪切带（CT）Digi-Reel® 得捷定制卷带 类别：集成电路（IC） AC DC 转换器，离线开关 描述：IC OFFLINE SWITCH 8DIP