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參數(shù)資料
| 型號： | SG6961 |
| 廠商： | Fairchild Semiconductor Corporation |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | Power Factor Controller |
| 中文描述： | 功率因數(shù)控制器 |
| 文件頁數(shù)： | 1/14頁 |
| 文件大小： | 582K |
| 代理商： | SG6961 |
Product Specification
Power Factor Controller
FEATURES
Boundary Mode PFC Controller
Low Input Current THD
Controlled On-Time PWM
Zero-Current Detection
Cycle-by-Cycle Current Limiting
Leading-Edge Blanking Instead of RC Filtering
Low Start-up Current (10μA Typical)
Low Operating Current (4.5mA Typical)
Feedback Open-Loop Protection
Programmable Maximum On-Time (MOT)
Output Over-Voltage Clamping Protection
Clamped Gate Output Voltage 16.5V
APPLICATIONS
Electric Lamp Ballasts
AC-DC Switching Mode Power Converter
Open-Frame Power Supplies and Power Adapters
Flyback Power Converters with ZCS/ZVS
TYPICAL APPLICATION
SG6961
System General Corp.
Version 1.3.1 (IRO33.0028.B6)
- 1 -
www.sg.com.tw www.fairchildsemi.com
September 24, 2007
DESCRIPTION
The SG6961 is an 8-pin boundary mode PFC controller IC
intended for controlling PFC pre-regulators. The SG6961
provides a controlled on-time to regulate the output DC
voltage and achieve natural power factor correction. The
maximum on-time of the external switch is programmable
to ensure safe operation during AC brownouts. An
innovative multi-vector error amplifier is built in to
provide rapid transient response and precise output
voltage clamping. A built-in circuit disables the controller
if the output feedback loop is opened. The start-up current
is lower than 20μA and the operating current is under
4.5mA. The supply voltage can be up to 20V, maximizing
application flexibility.
ZCD
MOT
GND
CS
GD
INV
COMP
VCC
SG6961
VAC
Vo
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SG6961DZ | Power Factor Controller |
| SG6961SZ | Power Factor Controller |
| SG6980DZ | Single-Stage PFC Controller |
| SG6980SZ | Single-Stage PFC Controller |
| SG6980 | Single-Stage PFC Controller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SG6961BSTA_DBB14 WAF | 制造商:Fairchild Semiconductor Corporation 功能描述: |
| SG6961DZ | 功能描述:功率因數(shù)校正 IC Grn Mode PFC/Forward PWM Controller RoHS:否 制造商:Fairchild Semiconductor 開關(guān)頻率:300 KHz 最大功率耗散: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel |
| SG6961SY | 功能描述:功率因數(shù)校正 IC Power Factor Controller RoHS:否 制造商:Fairchild Semiconductor 開關(guān)頻率:300 KHz 最大功率耗散: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel |
| SG6961SZ | 功能描述:功率因數(shù)校正 IC Power Factor Controller RoHS:否 制造商:Fairchild Semiconductor 開關(guān)頻率:300 KHz 最大功率耗散: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel |
| SG6980 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Single-Stage PFC Controller |
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