Datasheet > SFL900BSG

SFL900BSG

更新时间： 2024-09-17 02:51:47

品牌	Logo	应用领域
赛威科技 - SIFIRST		功率因数校正
页数	文件大小	规格书
2页	160K
描述
super-PFC/PSRTM Controller for LED Lighting

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中文翻译

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数据手册

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SFL900BSG 数据手册

SFL900B

super-PFC/PSR^TMController for LED Lighting

FEATURES

GENERAL DESCRIPTION

◆ super-PFC/PSR^TMControl Supports Both

SFL900B is a high performance, high power factor

flyback PWM controller special for LED lighting

applications. The IC adopts unique super-

Primary

Side

Regulation

(PSR)

and

Secondary Side Regulation (SSR)

◆ Pin Compatible with Popular PFC Controllers

◆ THD<10%using min-THD^TMTechnique

◆ Built-in AC Line and Load Compensation for

High Precision LED Output Current

PFC/PSR^TMwhich can support both PSR and SSR

applications.

SFL900B is pin compatible with mainstream PFC

controllers such as XX6561/6562, XX7527, etc.

SFL900B also integrates proprietary min-THD^TM,

technique, which can achieve less than 10% THD for

universal line input.

SFL900B has built-in Load CC Compensation and

AC Line CC Compensation function, which can

further increase LED output CC accuracy. The IC has

Max. 90KHz Frequency Clamping function and soft

totem pole Gate driver to improve system conduction

and radiation EMI. The IC will Clear External EA

Feedback Network before IC power on, which can

reduces startup LED current spike. The IC also has

Soft Start control during power on period.

In SFL900B, the proprietary “Frequency Adjusting”

can help to improve THD performance, while ensures

audio noise free operation.

SFL900B integrates functions and protections of

Under Voltage Lockout (UVLO), LED Open/Short

Protection, VCC Over Voltage Protection (OVP),

Load Over Voltage Protection (Load OVP), Soft Start,

Cycle-by-cycle Current Limiting (OCP), Burst Mode

Control @ Light Loading, GD Clamping, VCC

Clamping, etc.

◆ Highly

Linear

Analog

Multiplier

with

“Frequency Adjusting” for High PF

◆ Max. 90KHz Frequency Clamping for EMI

◆ LED Open/Short Protection

◆ Burst Mode Control @ Light Loading

◆ Trimmed 1.5%Internal Voltage Reference

◆ Very Low Startup Current

◆ Under Voltage Lockout with 11.7V Hysteresis

◆ Built-in Soft Start

◆ Clear External EA Feedback Network before

Power On

◆ Cycle-by-Cycle Current Limiting

◆ Built-in Leading Edge Blanking (LEB)

◆ VCC Over Voltage Protection (OVP)

◆ Audio Noise Free Operation

◆ 10V to 32V Wide Range of VCC Voltage

◆ 500mA Drive Capability

APPLICATIONS

◆ LED Lighting Application

SFL900B is available in SOP-8 and DIP-8 packages.

TYPICAL APPLICATION (PSR Application)

EMI

Filter

SFL900B

VCC

COMP

MULT

GND

DEM

- 1 -

Confidential

SiFirst_DS_900B_V1.0

中文翻译

下载PDF

与SFL900BSG相关器件

型号	品牌	获取价格	描述	数据表
SFL900BSGT	SIFIRST	获取价格	super-PFC/PSRTM Controller for LED Lighting
SFLMC0500473MX0	KNOWLES	获取价格	CAP FEEDTHRU 0.047UF 50V AXIAL
SFLMC1000223MX0	KNOWLES	获取价格	CAP FEEDTHRU 0.022UF 100V AXIAL
SFLMC2000103MX0	KNOWLES	获取价格	CAP FEEDTHRU 10000PF 200V AXIAL
SFLMC2000153MX0	KNOWLES	获取价格	CAP FEEDTHRU 0.015UF 200V AXIAL
SFLMC5000100ZC0	KNOWLES	获取价格	CAP FEEDTHRU 10PF 500V AXIAL
SFLMC5000101MC0	KNOWLES	获取价格	CAP FEEDTHRU 100PF 500V AXIAL
SFLMC5000102MX0	KNOWLES	获取价格	CAP FEEDTHRU 1000PF 500V AXIAL
SFLMC5000150ZC0	KNOWLES	获取价格	CAP FEEDTHRU 15PF 500V AXIAL
SFLMC5000151MC0	KNOWLES	获取价格	CAP FEEDTHRU 150PF 500V AXIAL

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