参数资料
| 型号： | FSL127HNY |
| 厂商： | Fairchild Semiconductor |
| 文件页数： | 11/15页 |
| 文件大小： | 0K |
| 描述： | IC PWM/SEMSEFET SMPS 8-MDIP |
| 标准包装： | 59 |
| 系列： | FPS™ |
| 输出隔离： | 隔离 |
| 频率范围： | 94kHz ~ 106kHz |
| 输入电压： | 9 V ~ 30 V |
| 输出电压： | 700V |
| 功率（瓦特）： | 20W |
| 工作温度： | -40°C ~ 105°C |
| 封装/外壳： | 8-DIP（0.300"，7.62mm） |
| 供应商设备封装： | 8-DIP |
| 包装： | 管件 |
Constant Power Control
To limit the output power of the converter constantly,
high/low line compensation is included. Sensing the
converter input voltage through the VIN pin, the
high/low line compensation function generates a
relative peak-current-limit threshold voltage for constant
power control, as shown in Figure 27.
Figure 27. Constant Power Control
Protections
The FSL127H provides protection functions to prevent
the power supply and the load from being damaged.
The protection features include:
Latch / Auto Recovery Function
The FSL127H provides additional protections by the
VIN pin, such as pull-HIGH latch and pull-LOW auto
recovery that depend on the application. As shown in
Figure 28, when V IN level is higher than 4.7V, FSL127H
is latched until the V DD is discharged. FSL127H is in
auto recovery when the V IN level is lower than 0.3V.
Figure 29. OLP Operation
V DD Over-Voltage Protection (OVP)
V DD over-voltage protection prevents IC damage caused
by over voltage on the V DD pin. The OVP is triggered
when V DD reaches 28V. It has a debounce time (typically
130μs) to prevent false trigger by switching noise.
Over-Temperature Protection (OTP)
The SenseFET and the control IC are integrated,
making it easier to detect the temperature of the
SenseFET. When the temperature exceeds
approximately 142 ° C, thermal shutdown is activated.
Figure 28. VIN Pin Function
Open-Loop / Overload Protection (OLP)
When the upper branch of the voltage divider for the
shunt regulator (KA431 shown) is broken, as shown in
Figure 29, or over-current or output short occurs; there
is no current flowing through the opto-coupler transistor,
which pulls up the feedback voltage to 6V. When the
feedback voltage is above 4.6V for longer than 56ms,
OLP is triggered. This protection is also triggered when
the SMPS output drops below the nominal value longer
than 56ms due to the overload condition.
? 2010 Fairchild Semiconductor Corporation
FSL127H ? Rev. 1.0.2
11
www.fairchildsemi.com
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相关代理商/技术参数 |
参数描述 |
|---|---|
| FSL127HNYI | 制造商:Fairchild Semiconductor Corporation 功能描述: |
| FSL128MRT | 制造商:Fairchild 功能描述:30W STB Power Supply |
| FSL128MRTWDTU | 功能描述:电源开关 IC - POE / LAN GreenMode Pwr Switch for Hi Input Voltage RoHS:否 制造商:Fairchild Semiconductor 开关数量:Single 开关配置:SPST 开启电阻（最大值）:7.3 Ohms 串话: 带宽: 开启时间（最大值）:13 ns 关闭时间（最大值）:20 ns 切换电压（最大）: 工作电源电压:8 V to 26 V 最大工作温度:+ 125 C 安装风格:Through Hole 封装 / 箱体:TO-220F-6 |
| FSL130D | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:8A, 100V, 0.230 Ohm, Rad Hard, SEGR Resistant, N-Channel Power MOSFETs |
| FSL130D1 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:8A, 100V, 0.230 Ohm, Rad Hard, SEGR Resistant, N-Channel Power MOSFETs |
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