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参数资料
| 型号： | FSFR1800US |
| 厂商： | Fairchild Semiconductor |
| 文件页数： | 12/15页 |
| 文件大小： | 0K |
| 描述： | IC FPS POWER SWITCH 9-SIP |
| 标准包装： | 19 |
| 系列： | FPS™ |
| 输出隔离： | 隔离 |
| 频率范围： | 94kHz ~ 106kHz |
| 输入电压： | 9.6 V ~ 25 V |
| 输出电压： | 500V |
| 功率（瓦特）： | 260W |
| 工作温度： | -40°C ~ 130°C |
| 封装/外壳： | 9-SIP |
| 供应商设备封装： | 9-SIP |
| 包装： | 管件 |
5.3 Over-Voltage Protection (OVP) : When the LV CC
reaches 23V, OVP is triggered. This protection is used
when auxiliary winding of the transformer to supply V CC
to FPS is utilized.
5.4 Thermal Shutdown (TSD) : The MOSFETs and
the control IC in one package makes it easy for the
control IC to detect the abnormal over-temperature of
the MOSFETs. If the temperature exceeds
approximately 130 ° C, the thermal shutdown triggers.
6. Current Sensing Using Resistor: FSFR-US series
senses drain current as a negative voltage, as shown in
Figure 23 and Figure 24. Half-wave sensing allows low
power dissipation in the sensing resistor, while full-wave
sensing has less switching noise in the sensing signal.
Cr
7. PCB Layout Guidelines : Duty unbalance problems
may occur due to the radiated noise from main
transformer, the inequality of the secondary side leakage
inductances of main transformer, and so on. Among
them, it is one of the dominant reasons that the control
components in the vicinity of R T pin are enclosed by the
primary current flows pattern on PCB layout. The
direction of the magnetic field on the components caused
by the primary current flow is changed when the high-and
low-side MOSFET turn on by turns. The magnetic fields
with opposite directions induce a current through, into, or
out of the R T pin, which makes the turn-on duration of
each MOSFET different. It is strongly recommended to
separate the control components in the vicinity of R T pin
from the primary current flow pattern on PCB layout.
Figure 25 shows an example for the duty-balanced case.
Np
Ns
Ns
Control
IC
V CS
CS
R sense
SG
PG
Ids
I ds
V CS
Figure 25. Example for Duty Balancing
Figure 23. Half-Wave Sensing
I ds
V CS
Cr
Control
V CS
CS
IC
SG
PG
R sense
Np
Ns
Ns
Ids
Figure 24. Full-Wave Sensing
? 2009 Fairchild Semiconductor Corporation
FSFR-US Series ? Rev.1.0.2
12
www.fairchildsemi.com
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相关代理商/技术参数 |
参数描述 |
|---|---|
| FSFR1800USL | 功能描述:电源开关 IC - 配电 260W Powr Switch for Half Brdg Res Cnvtr RoHS:否 制造商:Exar 输出端数量:1 开启电阻（最大值）:85 mOhms 开启时间（最大值）:400 us 关闭时间（最大值）:20 us 工作电源电压:3.2 V to 6.5 V 电源电流（最大值）: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOT-23-5 |
| FSFR1800XS | 功能描述:功率驱动器IC 260W Fairchild PwrSW RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
| FSFR1800XSL | 功能描述:功率驱动器IC 260W Fairchild PwrSW RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
| FSFR1900 | 功能描述:电源开关 IC - 配电 Power Switch for Half-Bridge Resonant RoHS:否 制造商:Exar 输出端数量:1 开启电阻（最大值）:85 mOhms 开启时间（最大值）:400 us 关闭时间（最大值）:20 us 工作电源电压:3.2 V to 6.5 V 电源电流（最大值）: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOT-23-5 |
| FSFR19003 | 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:Fairchild Power Switch (FPS⑩) for Half-Bridge Resonant Converter |
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