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參數資料
| 型號： | SG6901ASZ |
| 廠商： | Fairchild Semiconductor |
| 文件頁數： | 1/19頁 |
| 文件大?。?/td> | 714K |
| 描述： | IC PFC CTLR AVERAGE CURR 20SOIC |
| 標準包裝： | 1 |
| 模式： | 平均電流 |
| 頻率 - 開關： | 65kHz |
| 電流 - 啟動： | 10µA |
| 電源電壓： | 12 V ~ 20 V |
| 工作溫度： | -30°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 20-SOIC（0.295"，7.50mm 寬） |
| 供應商設備封裝： | 20-SOIC |
| 包裝： | 標準包裝 |
| 其它名稱： | SG6901ASZDKR |
February 2009
?2008 Fairchild Semiconductor Corporation
www.fairchildsemi.com
SG6901A " Rev. 1.0.2
SG6901A
CCM PFC/Flyback PWM Combination Controller
Features
Interleaved PFC/PWM Switching
Low Startup and Operating Current
Innovative Switching Charge Multiplier Divider
Multi-vector Control for Improved PFC Output
Transient Response
Average-Current-Mode Control for PFC
Programmable Two-Level PFC Output Voltage
Protections
PFC and PWM Feedback Open-Loop Protection
Cycle-by-Cycle Current Limiting for PFC/PWM
Slope Compensation for PWM
H/L Line Over-Power Compensation for PWM
Brownout Protection
Over-Temperature Protection (OTP)
Applications
Switching Power Supplies with Active PFC and
Standby Power
High-Power Adaptors
Description
The highly integrated SG6901A is designed for power
supplies with boost PFC and flyback PWM. It requires
very few external components to achieve versatile
protections. It is available in a 20-pin SOP package.
A proprietary interleave-switching feature synchronizes
the PFC and PWM stages and reduces switching noise.
For PFC stage, the proprietary multi-vector control
scheme provides a fast transient response in a low-
bandwidth PFC loop, in which the overshoot and
undershoot of the PFC voltage are clamped. If the
feedback loop is broken, the SG6901A shuts off PFC to
prevent extra-high voltage on output.
For the flyback PWM, the synchronized slope
compensation ensures the stability of the current loop
under continuous-conduction-mode operation. Built-in
line-voltage compensation maintains constant output-
power limit. Hiccup operation during output overloading
is also guaranteed.
In addition, SG6901A provides protection functions,
such as brownout and RI pin open/short protection.
Ordering Information
Part Number
Operating
Temperature Range
Eco
Status
Package
Packing
Method
SG6901ASZ
-30癈 to +85癈
RoHS
20-Lead, Small Outline Integrated
Circuit (SOIC), JEDEC
MS013, .300 inch, Wide Body
Tape & Reel
For Fairchilds definition of green Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html
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相關代理商/技術參數 |
參數描述 |
|---|---|
| SG6902 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Green-Mode PFC / Flyback-PWM Controller |
| SG6902SZ | 功能描述:開關變換器、穩壓器與控制器 Grn Mode PFC/Flyback PWM Controller RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| SG6903SZ | 功能描述:開關變換器、穩壓器與控制器 Highly-Integrated Grn Mode PWM Cntrl RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| SG6905 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Green mode PFC/Flyback-PWM Controller |
| SG6905SY | 制造商:Rochester Electronics LLC 功能描述: 制造商:Fairchild Semiconductor Corporation 功能描述: |
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