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Discrete Divice

LVMOS

Planar LVMOS Normal Trench LVMOS Split Gate Trench LVMOS Automotive MOSFET

HVMOS

Planar HVMOS Multi-Epi DPMOS Trench DPMOS

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Planar IGBT Trench IGBT SiC Hybrid IGBT RC IGBT

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GaAs

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LVMOS

Planar LVMOS Normal Trench LVMOS Split Gate Trench LVMOS Automotive MOSFET

HVMOS

Planar HVMOS Multi-Epi DPMOS Trench DPMOS

IGBT

Planar IGBT Trench IGBT SiC Hybrid IGBT RC IGBT

SiC

SiC MOS

Diode

FRD

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DIP2V/SOP2V

DIP-23/SOP-23

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DIP-27

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SOP-30

SOP-37

DIP-T46A

IGBT Module

Industrial Module

Automobile module

AC-DC Converter

SSR Flyback Controller IC

PSR Flyback Controller IC

Synchronous Rectifier IC

Non-isolated BUCK/BUCK-BOOST IC

PFC IC

Fast Charging IC

Power Bank Fast Charger IC

Car Charger IC

AC-DC Fast Charging Protocol IC

DC-DC Converter

DC-DC Converter IC

PoE IC

LED Lighting Driver

Dimming LED Lighting Driver

Non-dimming LED Lighting Driver

Automotive LED Driver

Automotive Low-Voltage Motor Driver

Smart Power Switches

Gate Driver IC

Three-phase Half Bridge Driver

Single Half-bridge Driver

PFC IGBT Gate Driver

MEMS Sensor

Triaxial Acceleration Sensor

Six- Axis Inertial Sensor

Proximity Detection and Digital Ambient Light Sensor

Heart Rate Sensor

Silicon Microphone Sensor

MCU IC

8bit MCU

32bit MCU

Integrated Driver MCU

Digital Audio/Video

CD SERVO

Audio Decode

Audio Effects Processing

Intelligent Audio

ASIC

Bipolar PWM Controller

Bipolar DC-DC

LDO

Volume and Sound Control Circuit

DC Drive Circuit

Darlington Circuit

Logic & Switch & Level Shift

Operational Amplifier Circuit

Comparator

Reference IC

Linear Regulator

Audio Circuit

Interface ICs

LED Chip

GaN

GaAs

SD682X

SINGLE STAGE PRIMARY SIDE REGULATION PFC CONTROLLER FOR LED DRIVER

Description Main feature Product specification classification Internal block diagram Technical documentation Relevant package outline drawing

The SD682X is a single stage primary side regulation (PSR) power factor correction (PFC) controller, built-in high voltage power MOSFET, specially designed for flyback LED driver.

The Device adopts constant on time operation to achieve high power factor.

The SD682X provides accurate constant current control and operates in boundary conduction mode (BCM) with high efficiency. The Device adopts primary side regulation eliminating the opto-couple, secondary feedback control and loop compensation for reducing design and cost.

Constant TON is adopted for high PF; due to patented close-loop control technology pin COMP and peripheral compensation network are unnecessary, and output current will not be affected by moisture or leakage current; thanks to patented THD technology, low THD is obtained without optimized THD network in most applications.

The SD682X provides completed protections such as short LED protection, open LED protection and over temperature protection, etc.

Main feature

PSR flyback topology
Boundary Conduction Mode
Patented close-loop technology to prevent moisture and leakage, peripheral compensation network is unnecessary
Patented THD optimized technology without need of peripheral optimized network
Built-in 650V high voltage power MOSFET
Leading edge blanking
Constant on time controlVC
C under voltage lockout
Over temperature protection
Cycle by cycle current limiting
Peak current compensation
Short LED protection and Open LED protection

Ordering Information

Product Name	Package form	Marking	Hazardous Substance Control	Packing Type
SD6821S	SOP-7-225-1.27	/	Halogen free	Tube
SD6821STR	SOP-7-225-1.27	/	Halogen free	Tape & reel
SD6822S	SOP-7-225-1.27	/	Halogen free	Tube
SD6822STR	SOP-7-225-1.27	/	Halogen free	Tape & reel
SD6824S	SOP-7-225-1.27	/	Halogen free	Tube
SD6824STR	SOP-7-225-1.27	/	Halogen free	Tape & reel
SD6824D	DIP-7-300-2.54	/	Halogen free	Tube
SD6827D	DIP-7-300-2.54	/	Halogen free	Tube

Block Diagram

繪圖1.png

Documents

title	Types of	Size (KB)	date	Download the latest English version
SD682X		0	2024-09-03	SD682X Brief Datasheet

Packages

SOP-7-225-1.27

DIP-7-300-2.54

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