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参数资料
| 型号： | FDC6324L |
| 厂商： | Fairchild Semiconductor |
| 文件页数： | 6/7页 |
| 文件大小： | 0K |
| 描述： | IC LOAD SWITCH INT 20VIN SSOT-6 |
| 产品变化通告： | Mold Compound Change 08/April/2008 |
| 标准包装： | 1 |
| 类型： | 高端开关 |
| 输出数： | 1 |
| 内部开关： | 是 |
| 电流限制： | 1.5A |
| 输入电压： | 3 V ~ 20 V |
| 工作温度： | -55°C ~ 150°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SOT-23-6 细型，TSOT-23-6 |
| 供应商设备封装： | 6-SSOT |
| 包装： | 标准包装 |
| 产品目录页面： | 1216 (CN2011-ZH PDF) |
| 其它名称： | FDC6324LDKR |
FDC6324L Load Switch Application
APPLICATION CIRCUIT
General Description
This device is particularly suited for
computer
Q2
peripheral switching applications where 20V
input and 1A output current capability
are
IN
R1
C1
OUT
needed. This load switch integrates a small
N-Channel Power MOSFET (Q1) which drives a
large P-Channel Power MOSFET (Q2) in one tiny
ON/OFF
Q1
Co
LOAD
SuperSOT TM -6 package.
A load switch is usually configured for high side
switching so that the load can be isolated from
the active power source. A P-Channel Power
R2
MOSFET, because it does not require its drive
voltage above the input voltage, is usually more
cost effective than using an N-Channel device in
this particular application. A large
P-Channel
Power MOSFET minimizes voltage drop. By
using a small N-Channel device the driving
stage is simplified.
Component Values
R1
R2
C1
Typical 10k - 1M ?
Typical 0 - 10k ?
Typical 1000pF
(optional)
(optional)
Design Notes
R1 is needed to turn off Q2.
R2 can be used to soft start the switch in the case the output capacitance Co is small.
R2 ≤ should be at least 10 times smaller than R1 to guarantee Q1 turns on.
By using R1 and R2 a certain amount of current is lost from the input. This bias current loss is given by
the equation
I BIAS _ LOSS = R 1 Vin + R 2
when the switch is ON. I BIAS_LOSS can be minimized by large R1.
R2 and C RSS of Q2 make ramp for slow turn on. If excessive overshoot current occurs due to fast turn on,
additional capacitance C1 can be added externally to slow down the turn on.
FDC6324L Rev. D
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相关代理商/技术参数 |
参数描述 |
|---|---|
| FDC6324L | 制造商:Fairchild Semiconductor Corporation 功能描述:Power Distribution (Load) Switch IC |
| FDC6324L_Q | 功能描述:MOSFET SSOT-6 LOAD SW 20V RoHS:否 制造商:STMicroelectronics 晶体管极性:N-Channel 汲极/源极击穿电压:650 V 闸/源击穿电压:25 V 漏极连续电流:130 A 电阻汲极/源极 RDS（导通）:0.014 Ohms 配置:Single 最大工作温度: 安装风格:Through Hole 封装 / 箱体:Max247 封装:Tube |
| FDC6324L-CUT TAPE | 制造商:FAIRCHILD 功能描述:FDC6324 Series 20 V 1.5 A High Side Integrated Load Switch - SSOT-6 |
| FDC6325L | 功能描述:功率驱动器IC SSOT-6 LOAD SW 8V 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 |
| FDC6325L_Q | 功能描述:电源开关 IC - 配电 SSOT-6 LOAD SW 8V 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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