Datasheet > SF6562DP

SF6562DP

更新时间： 2024-01-20 15:23:55

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	65K
描述
High Performance Transition Mode PFC Controller

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SF6562DP 数据手册

SF6562

High Performance Transition Mode PFC Controller

FEATURES

GENERAL DESCRIPTION

SF6562 is a transition mode (TM) power factor

correction (PFC) controller for AC-DC switching

mode power supply and lighting applications.

In SF6562, a highly linear analog multiplier with THD

optimizer is integrated to achieve very low THD and

near unity power factor. The zero current detector

(ZCD) ensures TM operation. A restart timer is for

stand alone applications.

◆ Transition Mode (TM) Operation

◆ VCC Over Voltage Protection (OVP)

◆ Soft Start Control

◆ Proprietary Soft Start Control

◆ Proprietary “Frequency Adjusting” for Higher

PF and Low THD

◆ Highly Linear Analog Multiplier with THD

Optimizer

In SF6562, the proprietary “Frequency Adjusting”

can help to improve THD performance, while ensures

audio noise free operation. A VCC Over Voltage

Protection (VCC OVP) is integrated to improve

system reliability. The IC also has proprietary Soft

Start Control to soften the stress on the MOSFET

during power on period.

In SF6562, the threshold for Output Over Voltage

Protection (OVP) and Error Amplifier (EA) are

trimmed to tight range and internally temperature

compensated.

◆ Low Start-up Current and Operating Current

◆ Trimmed 1.4% Internal Voltage Reference

◆ High Precise Output Over Voltage Protection

Threshold with Low Temperature Drift

◆ Under Voltage Lockout with Hysteresis

◆ Restart Timer for Stand-alone Applications

◆ Disable Function

◆ Cycle-by-Cycle Current Limiting

◆ Built-in Leading Edge Blanking (LEB)

◆ Audio Noise Free Operation

◆ 10V to 31V Wide Range of VCC Voltage

◆ 800mA Drive Capability

◆ System Open Loop Protection

SF6562 integrates functions and protections of Under

Voltage Lockout (UVLO), VCC Over Voltage

Protection (OVP), Soft Start Control, Cycle-by-cycle

Current Limiting (OCP), GD Clamping, VCC

Clamping, Leading Edge Blanking (LEB), System

Open Loop Protection (OLP), Output OVP, etc.

In SF6562, all protections are auto-recovery mode

protection.

APPLICATIONS

◆ SMPS

◆ Lighting Application

SF6562 is available in SOP-8 and DIP-8 packages.

TYPICAL APPLICATION

©SiFirst Technology

- 1 -

Confidential

SiFirst_DS_6562_V1.2

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