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參數(shù)資料
| 型號(hào)： | FAN4800IN_G |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 1 A POWER FACTOR CONTROLLER WITH POST REGULATOR, 250 kHz SWITCHING FREQ-MAX, PDIP16 |
| 封裝： | LEAD FREE, PLASTIC, MS-001, DIP-16 |
| 文件頁數(shù)： | 1/19頁 |
| 文件大小： | 405K |
| 代理商： | FAN4800IN_G |
2005 Fairchild Semiconductor Corporation
www.fairchildsemi.com
F
AN48
0
—
Low
S
tartup
Curre
nt
PFC/PWM
Cont
rol
ler
Combi
n
a
tions
November 2010
FAN4800 Rev. 1.0.6
FAN4800
Low Startup Current PFC/PWM Controller Combinations
Features
Low Startup Current (100A Typical)
Low Operating Current (2.5mA Typical)
Low Total Harmonic Distortion, High Power Factor
Pin-Compatible Upgrade for the ML4800
Average Current, Continuous or Discontinuous Boost,
Leading-Edge PFC
Slew Rate Enhanced Transconductance Error
Amplifier for Ultra-Fast PFC Response
Internally Synchronized Leading-Edge PFC and
Trailing-Edge PWM
Reduction of Ripple Current in the Storage Capacitor
between the PFC and PWM Sections
PWM Configurable for Current Mode or Voltage Mode
Additional Folded-Back Current Limit for PWM Section
20V BiCMOS Process
VIN OK Guaranteed Turn-on PWM at 2.25V
VCC OVP Comparator, Low-Power Detect Comparator
Current-Fed Gain Modulator for Improved Noise
Immunity
Brownout Control, Over-Voltage Protection, UVLO,
Soft-Start, and Reference OK
Available in16-DIP Package
Applications
Desktop PC Power Supply
Internet Server Power Supply
Uninterruptible Power Supply (UPS)
Battery Charger
DC Motor Power Supply
Monitor Power Supply
Telecom System Power Supply
Distributed Power
Description
The FAN4800 is a controller for power-factor-corrected,
switched-mode power supplies. Power Factor Correction
(PFC) allows the use of smaller, lower-cost bulk capaci-
tors, reduces power line loading and stress on the
switching FETs, and results in a power supply that fully
complies with IEC-1000-3-2 specifications. Intended as a
BiCMOS version of the industry-standard ML4800, the
FAN4800 includes circuits for the implementation of
leading-edge, average-current, boost-type power factor
correction and a trailing-edge Pulse Width Modulator
(PWM). A gate driver with 1A capabilities minimizes the
need for external driver circuits. Low-power require-
ments improve efficiency and reduce component costs.
An over-voltage comparator shuts down the PFC section
in the event of a sudden decrease in load. The PFC sec-
tion also includes peak current limiting and input voltage
brownout protection. The PWM section can be operated
in current or voltage mode, at up to 250kHz, and
includes an accurate 50% duty cycle limit to prevent
transformer saturation.
The FAN4800 includes a folded-back current limit for the
PWM section to provide short-circuit protection.
Ordering Information
16-PDIP
Part Number
Operating
Temperature Range
Package
Packing
Method
Marking
Code
FAN4800IN
-40°C to +125°C
16-PDIP
Rail
FAN4800
FAN4800IN_G
-40°C to +125°C
16-PDIP
Rail
FAN4800
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| FAN4801 | 制造商:Fairchild 功能描述:CCM PFC + FORWARD PWM IC |
| FAN4801FNY | 制造商:Fairchild Semiconductor Corporation 功能描述: 制造商:Fairchild Semiconductor Corporation 功能描述:NOTEBOOK COMBO |
| FAN4801FNY_SN00170 | 制造商:Fairchild Semiconductor Corporation 功能描述:NOTEBOOK COMBO |
| FAN4801MY | 功能描述:電流型 PWM 控制器 PWM/PFC, Avg Curr 30uA SU, 2.6mA Op RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| FAN4801NY | 功能描述:電流型 PWM 控制器 PWM PFC Combo RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
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