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参数资料
| 型号： | FAN4800IN |
| 厂商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分类： | 稳压器 |
| 英文描述： | Low Start-Up Current PFC/PWM Controller Combos |
| 中文描述： | 1 A POWER FACTOR CONTROLLER WITH POST REGULATOR, 250 kHz SWITCHING FREQ-MAX, PDIP16 |
| 封装： | LEAD FREE, PLASTIC, MS-001, DIP-16 |
| 文件页数： | 1/19页 |
| 文件大小： | 369K |
| 代理商： | FAN4800IN |
2005 Fairchild Semiconductor Corporation
www.fairchildsemi.com
Rev. 1.0.0
Features
Low start-up current(100
μ
A typ.)
Low operating current(2.5mA typ.)
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
operation
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
Brown out control, over-voltage protection, UVLO,
soft start, and Reference OK
Available in a 16-DIP Package
Applications
Desktop PC Power Supply
Internet Server Power Supply
Un-interruptible Power Supply UPS
Battery Charger
DC Motor Power Supply
Monitor Power Supply
Telecom System Power Supply
Distributed Power
General Description
The FAN4800 is a controller for power
factor
corrected,
switched
mode power supplies. Power Factor Correc-
tion (PFC) allows the use of smaller, lower cost bulk
capacitors, reduces power line loading and stress on
the switching FETs, and results in a power supply that
fully complies with the IEC-1000-3-2 specifications.
Intended as a Bi-CMOS version of the industry-stan-
dard ML4800, the FAN4800 includes circuits for the
implementation of leading edge, average current, boost
type power factor correction and a trailing edge, pulse
width PWM (Pulse Width Modulator). A gate driver with
1A capabilities minimizes the need for external driver
circuits. Low power requirements improve efficiency
and reduce component costs.
An over voltage comparator shuts down the PFC sec-
tion in the event of a sudden decrease in load. The
PFC section 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 a short circuit protection
function
.
16-DIP
FAN4800
Low S tart-Up Current PFC/PWM Controller Combos
相关PDF资料 |
PDF描述 |
|---|---|
| FAN4803 | 8-Pin PFC and PWM Controller Combo |
| FAN4810 | Power Factor Correction Controller |
| FAN4810M | Power Factor Correction Controller |
| FAN4810MX | Power Factor Correction Controller |
| FAN4810N | Terminal Block RoHS Compliant: Yes |
相关代理商/技术参数 |
参数描述 |
|---|---|
| FAN4800IN_G | 功能描述:电流型 PWM 控制器 ANG FG PFC & PWM CONTROLLER ASMC DIE RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| FAN4800IN_SB82230 | 功能描述:电流型 PWM 控制器 ANG FG PFC & PWM CONTROLLER ASMC DIE RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| 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 |
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