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參數資料
| 型號： | FDC6324 |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | Integrated Load Switch |
| 中文描述： | 綜合負荷開關 |
| 文件頁數： | 6/10頁 |
| 文件大?。?/td> | 259K |
| 代理商： | FDC6324 |
FDC6324L Load Switch Application
General Description
This device is particularly suited for computer
peripheral switching applications where 20V
input and 1A output current capability are
needed. This load switch integrates a small
N-Channel Power MOSFET (Q1) which drives a
large P-Channel Power MOSFET (Q2) in one
tiny 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
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
(optional)
Typical 1000pF
(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
when the switch is ON. I
BIAS_LOSS
can be minimized by large R1.
R
1
+
R
2
I
BIAS
_
LOSS
=
Vin
R2 and C
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
APPLICATION CIRCUIT
IN
OUT
ON/OFF
R1
R2
C1
LOAD
Co
Q2
Q1
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相關代理商/技術參數 |
參數描述 |
|---|---|
| FDC6324L | 功能描述:MOSFET SSOT-6 LOAD SW 20V RoHS:否 制造商:STMicroelectronics 晶體管極性:N-Channel 汲極/源極擊穿電壓:650 V 閘/源擊穿電壓:25 V 漏極連續電流:130 A 電阻汲極/源極 RDS（導通）:0.014 Ohms 配置:Single 最大工作溫度: 安裝風格:Through Hole 封裝 / 箱體:Max247 封裝:Tube |
| 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 晶體管極性:N-Channel 汲極/源極擊穿電壓:650 V 閘/源擊穿電壓:25 V 漏極連續電流:130 A 電阻汲極/源極 RDS（導通）:0.014 Ohms 配置:Single 最大工作溫度: 安裝風格:Through Hole 封裝 / 箱體:Max247 封裝: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:功率驅動器IC SSOT-6 LOAD SW 8V RoHS:否 制造商:Micrel 產品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時間: 下降時間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
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