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參數資料
| 型號： | FAN7930CM |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 穩壓器 |
| 英文描述： | 0.5 A POWER FACTOR CONTROLLER, 350 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | MS-012AA, SOP-8 |
| 文件頁數： | 1/22頁 |
| 文件大?。?/td> | 910K |
| 代理商： | FAN7930CM |
October 2010
2010 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FAN7930C Rev. 1.0.0
FAN7930C
—
Criti
c
al
Conduc
tion
Mode
PFC
Controller
FAN7930C
Critical Conduction Mode PFC Controller
Features
PFC-Ready Signal
Input Voltage Absent Detection
Maximum Switching Frequency Limitation
Internal Soft-Start and Startup without Overshoot
Internal Total Harmonic Distortion (THD) Optimizer
Precise Adjustable Output Over-Voltage Protection
Open-Feedback Protection and Disable Function
Zero-Current Detector (ZCD)
150μs Internal Startup Timer
MOSFET Over-Current Protection (OCP)
Under-Voltage Lockout with 3.5V Hysteresis
Low Startup and Operating Current
Totem-Pole Output with High State Clamp
+500/-800mA Peak Gate Drive Current
8-Pin SOP
Applications
Adapter
Ballast
LCD TV, CRT TV
SMPS
Description
The FAN7930C is an active power factor correction
(PFC) controller for boost PFC applications that operate
in critical conduction mode (CRM). It uses a voltage-
mode PWM that compares an internal ramp signal with
the error amplifier output to generate a MOSFET turn-off
signal. Because the voltage-mode CRM PFC controller
does not need rectified AC line voltage information, it
saves the power loss of an input voltage sensing network
necessary for a current-mode CRM PFC controller.
FAN7930C provides over-voltage protection (OVP),
open-feedback
protection,
over-current
protection
(OCP), input-voltage-absent detection, and under-
voltage lockout protection (UVLO). The PFC-ready pin
can be used to trigger other power stages when PFC
output voltage reaches the proper level with hysteresis.
The FAN7930C can be disabled if the INV pin voltage is
lower than 0.45V and the operating current decreases to
a very low level. Using a new variable on-time control
method, THD is lower than the conventional CRM boost
PFC ICs.
Related Resources
AN-8035 — Design Consideration for Boundary
Conduction Mode PFC Using FAN7930
Ordering Information
Part Number
Operating
Temperature Range
Top Mark
Package
Packing
Method
FAN7930CM
-40 to +125°C
FAN7930C 8-Lead Small Outline Package (SOP)
Rail
FAN7930CMX
Tape & Reel
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相關代理商/技術參數 |
參數描述 |
|---|---|
| FAN7930CMX | 功能描述:功率因數校正 IC Critical Conduction Mode PFC Controller RoHS:否 制造商:Fairchild Semiconductor 開關頻率: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 |
| FAN7930CMX_G | 制造商:Fairchild Semiconductor Corporation 功能描述:IC PFC CTLR CRITICAL CONF 8-SOIC 制造商:Fairchild Semiconductor Corporation 功能描述:Power Factor Correction - PFC Critical Conduction Mode PFC Controller 制造商:Fairchild Semiconductor Corporation 功能描述:Critical Conduction Mode PFC Controller |
| FAN7930DM | 制造商:Fairchild Semiconductor Corporation 功能描述:PFC |
| FAN7930DMX | 制造商:Fairchild Semiconductor Corporation 功能描述:PFC |
| FAN7930M | 功能描述:功率因數校正 IC Critical Conduction Mode PFC Controller RoHS:否 制造商:Fairchild Semiconductor 開關頻率: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 |
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