参数资料
| 型号： | FPF2108 |
| 厂商： | Fairchild Semiconductor |
| 文件页数： | 10/12页 |
| 文件大小： | 0K |
| 描述： | IC LOAD SWITCH ADVANCED SOT23-5 |
| 产品变化通告： | Mold Compound Change 12/Dec/2007 |
| 标准包装： | 3,000 |
| 系列： | IntelliMax™ |
| 类型： | 高端开关 |
| 输出数： | 1 |
| Rds（开）： | 160 毫欧 |
| 内部开关： | 是 |
| 电流限制： | 400mA |
| 输入电压： | 1.8 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SC-74A，SOT-753 |
| 供应商设备封装： | SOT-23-5 |
| 包装： | 带卷 (TR) |
Application Information
Typical Application
Battery
1.8V-5.5V
OFF ON
V IN V OUT
FPF2108 - FPF2110
ON FLAGB
R1 = 100K ?
LOAD
R2 = 499 ?
C1 = 4.7μF
Input Capacitor
To limit the voltage drop on the input supply caused by transient
in-rush currents when the switch turns-on into a discharged load
capacitor or a short-circuit, a capacitor needs to be placed
between V IN and GND. A 4.7μF ceramic capacitor, C IN , must
be placed close to the V IN pin. A higher value of C IN can be
used to further reduce the voltage drop experienced as the
switch is turned on into a large capacitive load.
Output Capacitor
A 0.1μF capacitor C OUT , should be placed between V OUT and
GND. This capacitor will prevent parasitic board inductances
from forcing V OUT below GND when the switch turns-off.
Power Dissipation
During normal operation as a switch, the power dissipation is
small and has little effect on the operating temperature of the
part. The parts with the higher current limits will dissipate the
P = (I LIM ) 2 ? R DS = (0.8) 2 ? 0.125 = 80mW
most power and that will only typically be,
When in current limit the maximum power dissipation will occur
when the output is shorted to ground. A short on the output will
cause the part to operate in a constant current state until the
thermal shutdown activates. It will then cycle in and out of
thermal shutdown so long as the ON pin is active and the short
is present.
Board Layout
For best performance, all traces should be as short as possible.
To be most effective, the input and output capacitors should be
placed close to the device to minimize the effects that parasitic
trace inductances may have on normal and short-circuit
operation. Using wide traces for V IN , V OUT and GND will help
minimize parasitic electrical effects along with minimizing the
case to ambient thermal impedance.
GND
C2 = 0.1 μ F
FPF2108-FPF2110 Rev. E
10
www.fairchildsemi.com
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相关代理商/技术参数 |
参数描述 |
|---|---|
| FPF2108_08 | 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:IntelliMAX⑩ Advanced Load Management Products |
| FPF2109 | 功能描述:功率驱动器IC INTELLIMAX ADV LOADM 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 |
| FPF21-1 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog IC |
| FPF2110 | 功能描述:电源开关 IC - 配电 INTELLIMAX ADV L 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 |
| FPF2116 | 功能描述:电源开关 IC - 配电 IntelliMAX Adv Load Management Products 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 |
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