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| 型号： | SG6961DZ |
| 厂商： | Fairchild Semiconductor |
| 文件页数： | 1/14页 |
| 文件大小： | 835K |
| 描述： | IC PWM CTLR PFC/FORWARD 8-DIP |
| 标准包装： | 59 |
| 模式： | 平均电流 |
| 频率 - 开关： | 50kHz |
| 电流 - 启动： | 10µA |
| 电源电压： | 12 V ~ 20 V |
| 工作温度： | -20°C ~ 125°C |
| 安装类型： | 通孔 |
| 封装/外壳： | 8-DIP（0.300"，7.62mm） |
| 供应商设备封装： | 8-DIP |
| 包装： | 管件 |
June 2010
?2008 Fairchild Semiconductor Corporation
www.fairchildsemi.com
SG6961 " Rev. 1.3.2
SG6961
Critical Conduction Mode PFC 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 Startup Current: 10?/SPAN>A (Typical)
Low Operating Current: 4.5mA (Typical)
Feedback Open-Loop Protection
Programmable Maximum On-Time
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
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
startup current is lower than 20礎 and the operating
current is under 4.5mA. The supply voltage can be up to
20V, maximizing application flexibility.
Ordering Information
Part Number
Operating
Temperature Range
Package
Packing Method
SG6961SZ
-30癈 to +85癈
8-Pin Small Outline Package (SOP)
Tape & Reel
SG6961DZ
-30癈 to +85癈
8-Pin Dual Inline Package (DIP)
Tube
SG6961SY
-30癈 to +85癈
8-Pin Small Outline Package (SOP)
Tape & Reel
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SG6961SY | 功能描述:功率因数校正 IC Power Factor Controller RoHS:否 制造商:Fairchild Semiconductor 开关频率:300 KHz 最大功率耗散: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Reel |
| SG6961SZ | 功能描述:功率因数校正 IC Power Factor Controller RoHS:否 制造商:Fairchild Semiconductor 开关频率:300 KHz 最大功率耗散: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Reel |
| SG6980 | 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:Single-Stage PFC Controller |
| SG6980DDZ | 功能描述:开关变换器、稳压器与控制器 Single Stage PFC Controller RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| SG6980DZ | 功能描述:开关变换器、稳压器与控制器 Single Stage PFC Controller RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
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