SP6879에 관한 고찰

오늘은 SP6879에 대한 고찰을 해 보겠습니다.

SP6879는 Multi Mode PWM Controller로 아래와 같은 특성을 지니고 있습니다.

 

 

 

 

 

 

 

 

Description.

 

 

The SP6879 is a low cost, multi-mode PWM controller intended for flyback topologies.

The internal valley detector ensures the converter operates at quasi-resonant operation at high line voltage.

IC operates in fixed frequency mode when the line voltage is low.

 

Under certain conditions, SP6879 can be operated in PFM or burst mode.

The build-in advanced energy saving function would provide the users a superior AC/DC power application of higher efficiency, and lower standby power.

 

The rich set of protection features such as

 

VCC Under Voltage Lockout (UVLO),

VCC Over Voltage Protection (VCC OVP) and clamp,

load Over Voltage Protection (OVP),

Over Load Protection (OLP), on-chip Over Temperature Protection (OTP),

line OVP and programmable Brownout Protection, to realize low component counts and high performance power supply.

SP6879 is available in SOP-8/ DIP-8P packages

 

 

 

 

Features.

 

 

High-Voltage BCD Process

Under Voltage Lockout (UVLO )

Quasi-Resonant Control

Internal 4ms Soft Start

Brownout Protection

Line OVP protection

OLP (Over Load Protection)

OVP (Over Voltage Protection) on Vcc Pin

100KHz Maximum Frequency

800mA Driving Capability

Low standby power <100mW solution

 

 

 

 

Applications.

 

 

AC/DC Switching Power Adaptor

Set-top Box Power Supply

Open-Frame Switching Power Supply

 

 

 

 

 

아래 사진은  SP6879 Demo Board입니다.

 

 

 

 

아래와 같은 Application 파일이 있습니다, Down 받아서 보셔도 됩니다.

 

SP6879_24V-2.08A CCCV circuit.pdf

0.06MB

 

SP6879_App_Notes_V1.2.pdf

0.72MB

 

SP6879_12V-3A application note_170309.pdf

0.35MB

 

SP6879_20V_3.25A test report_20180723.pdf

0.58MB

 

 

 

아래와 같은 Spec sheet 파일이 있습니다, Down 받아서 보셔도 됩니다.

 

SP6879_Ver1.2_20190409.pdf

0.43MB