PWM

KA7552 PDF Datasheet – PWM Controller

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This post explains for the semiconductor KA7552.

The Part Number is KA7552. The Package is DIP 8 pin.

The function of this semiconductor is PWN CONTROLLER.

Manufacturer: Samsung

Images

components

Description

The KA7552 is switching power control IC for wide operating frequency range. The internal circuits include pulse by pulse current limiting, protection, on/off control by external trigger, low standby current, soft start, and high current totempole output for driving a Power MOS-FET

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Pinout

KA7552 block diagram

Features

1. Wide Operating Frequency Range ( 5Khz ~ 600Khz )
2. Pulse by Pulse over current limiting
3. Over load protection
4. On/Off control by external trigger
5. Internal UVLO
6. Soft Start circuit

KA7552 Datasheet


 

Similar features and reference parts

SM8002C Datasheet – AC/DC PWM Controller ( PDF )

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Part Number: SM8002C

Function: AC/DC PWM Controller

Package: HDIP 4 Pin

Manufacturer: ShenZhen Sunmoon Microelectronics

Image

SM8002C datasheet pwm controller

Description

The SM8002C is a current-mode PWM off-line SMPS primary controller which consumes only 0.25W under AC240V in standby and greatly reduces the cost of entire power panel. It offers over-current protection and under-voltage lockout.

 

Pinout

SM8002C pinout

 

Features

1. Low power on standby
1. Over-current protection and VDD
under-voltage lockout
2. Frequency dither for good EMI
3. Switch frequency: 100 KHz

Applications:

1. Battery chargers
2. <10W adaptors
3. DVD, DVB power supplies

SM8002C Datasheet


 

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