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| 型号： | FAN4801SMY |
| 厂商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 0.5 A POWER FACTOR CONTROLLER WITH POST REGULATOR, 268 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封装： | 0.150 INCH, GREEN, MS-012AC, SOIC-16 |
| 文件页数： | 16/19页 |
| 文件大小： | 577K |
| 代理商： | FAN4801SMY |
2010 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FAN4800AS/CS/01S/02S Rev. 1.0.1
6
FA
N
4800A
S/C
S
/01S/02S
—
PFC/PWM
Controller
Combination
Pin Configuration
Figure 7.
Pin Configuration (Top View
)
Pin Definitions
Pin #
Name
Description
1
IEA
Output of PFC Current Amplifier
. The signal from this pin is compared with an internal
sawtooth to determine the pulse width for PFC gate drive.
2
IAC
Input AC Current
. For normal operation, this input provides current reference for the multiplier.
The suggested maximum IAC is 100A.
3
ISENSE
PFC Current Sense
. The non-inverting input of the PFC current amplifier and the output of
multiplier and PFC ILIMIT comparator.
4
VRMS
Line-Voltage Detection
. The pin is used for the PFC multiplier.
5
SS
PWM Soft-Start
. During startup, the SS pin charges an external capacitor with a 10A
constant current source. The voltage on FBPWM is clamped by SS during startup. If a
protection condition occurs and/or PWM is disabled, the SS pin is quickly discharged.
6
FBPWM
PWM Feedback Input
. The control input for voltage-loop feedback of PWM stage.
7
RT/CT
Oscillator RC Timing Connection
. Oscillator timing node; timing set by RT and CT.
8
RAMP
PWM RAMP Input
. In current mode, this pin functions as the current-sense input; when in
voltage mode, it is the feedforward sense input from PFC output 380V (feedforward ramp).
9
ILIMIT
Peak Current Limit Setting for PWM
. The peak current limits setting for PWM.
10
GND
Ground
.
11
OPWM
PWM Gate Drive
. The totem-pole output drive for PWM MOSFET. This pin is internally
clamped under 19V to protect the MOSFET.
12
OPFC
PFC Gate Drive
. The totem-pole output drive for PFC MOSFET. This pin is internally clamped
under 15V to protect the MOSFET.
13
VDD
Supply
. The power supply pin. The threshold voltages for startup and turn-off are 11V and
9.3V, respectively. The operating current is lower than 10mA.
14
VREF
Reference Voltage
. Buffered output for the internal 7.5V reference.
15
FBPFC
Voltage Feedback Input for PFC
. The feedback input for PFC voltage loop. The inverting
input of PFC error amplifier. This pin is connected to the PFC output through a divider network.
16
VEA
Output of PFC Voltage Amplifier
. The error amplifier output for PFC voltage feedback loop.
A compensation network is connected between this pin and ground.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| FAN4801SNY | 功能描述:电流型 PWM 控制器 PFC + PWM Controller Combo 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 |
| FAN4802 | 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:PFC/PWM Controller Combination |
| FAN4802L | 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:PFC/PWM Controller Combination |
| FAN4802LMY | 功能描述:电流型 PWM 控制器 PWM PFC Combo 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 |
| FAN4802LNY | 功能描述:电流型 PWM 控制器 PWM PFC Combo 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 |
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