KA3883EDTF

更新时间： 2024-11-23 13:09:07

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管
页数	文件大小	规格书
5页	65K
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数据手册

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KA3883EDTF 数据手册

KA3882/3/4/5

SMPS CONTROLLER

CURRENT MODE PWM CONTROLLER

8 DIP

The KA3882/3/4/5 are fixed PWM controller for Off-Line and DC

to DC converter applications. The internal circuits include UVLO,

low start up current circuit, temperature compensated reference,

high gain error amplifier, current sensing comparator, and high

current totempole output for driving a POWER MOSFET. Also KA

3882/3/4/5 provide low start up current below 0.3mA and short

shutdown delay time typ. 100ns.

The KA3882 and KA3884 have UVLO threshold of 1 6V(on) and

10V(off).

8 SOP

The KA3883 and KA3885 are 8.4V(on) and 7.6V(off).

The KA3882 and KA3883 can operate within 100% duty cycle.

The KA3884 and KA3885 within 50% by using T Flip-Flop.

FEATURES

•

Low Start Current 0.2mA (typ)

Operating Range Up To 500KHz

•

Cycle by Cycle Current Limiting

Under Voltage Lock Out With Hysteresis

Short Shutdown Delay Time: typ.100ns

High Current Totempole Output

Output Swing Limiting: 22V

ORDERING INFORMATION

Device

KA388X

KA388XD

Package

8 DIP

Operating Temperature

0 ~ + 85

8 SOP

BLOCK DIAGRAM

Rev. B

12 3 4 5

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