Datasheet > DIO8105

DIO8105

更新时间： 2024-04-09 19:03:14

品牌	Logo	应用领域
帝奥微 - DIOO		功率因数校正
页数	文件大小	规格书
10页	489K
描述
DIO8105 is a single stage Flyback and PFC controller targeting at Constant Voltage (CV) applicatio

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DIO8105 数据手册

Rev 1.5

DIO8105

Single Stage Flyback & PFC Controller with PSR CV

Control For LED Lighting

Features

Descriptions



Primary side CV control eliminates the opto-

DIO8105 is a single stage Flyback and PFC

controller targeting at Constant Voltage (CV)

applications.

couple.

Valley turn-on of the primary MOSFET to

achieve low switching losses

Internal high current MOSFET driver: 0.15A

sourcing and 0.5A sinking

The DIO8105 is a primary side controller without

applying any secondary feedback circuit for low

cost, and drives the Flyback converter in the

quasi-resonant mode to achieve higher efficiency.



Power factor >0.9 @230VAC

Reliable protection: SCP, OCP, OTP & OVP

Quick start up:<500ms

Built-in Soft Start

The DIO8105 keeps the Flyback converter in

constant on time operation to achieve high power

factor.

Low start up current:10μA typical

Package: SOT23-6, SOIC-8

This chip adopts special design to achieve quick

start up and reliable protection for safety

requirement.

Applications



AC/DC adapters



LED Lighting

Block Diagram

VIN

POR

UVLO

OVP

Regulator

ZCS

Bias

UVLO

OTP

Logic

0.1V

CMP

Tons

Detector

PFM

PRO

DCMB

Accelerate Start up

0.9V

PFM

Gate

Driver

CS_OFF

CS_lit

LOGIC

DRV

OVP

OVP/TR_lit

CMP

1.5V

CS_lit

LEB

OCP Logic

CMP

2.5V

VCS_lit

TR_lit

CS_OFF

CMP

ZCS peak S &H

COMP TO Tonp

Tons

VCS_TR

1.2V

GND

COMP

www.dioo.com

DIO8105• V1.5

12 3 4 5 6 7...10

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