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CSD18502KCS 数据手册 - TI（德州仪器）
制造商:
TI（德州仪器）
分类:
MOS管
封装:
TO-220-3
描述:
40V，N 通道 NexFET™ 功率 MOSFET
Pictures:
3D模型
符号图
焊盘图
引脚图
产品图
页面导航:
引脚图在P3Hot
典型应用电路图在P12P13P14
原理图在P1P11
封装尺寸在P16P17P18P20P21
标记信息在P16P17P18
封装信息在P15P16P17P18P19P20P21
技术参数、封装参数在P4
应用领域在P1P28
电气规格在P5P6P7P8P9P10
导航目录
CSD18502KCS数据手册
Page:
of 28 Go
若手册格式错乱，请下载阅览PDF原文件
µA78xx
+V
O
+V
I
−V
O
1N4001
or
Equivalent
+V+V
O
0.1 µF0.33 µF
µA78xx
uA7805
,
uA7808
,
uA7810
uA7812
,
uA7815
,
uA7824
SLVS056P –MAY 1976–REVISED JANUARY 2015
www.ti.com
9 Application and Implementation
NOTE
Information in the following applications sections is not part of the TI component
specification, and TI does not warrant its accuracy or completeness. TI’s customers are
responsible for determining suitability of components for their purposes. Customers should
validate and test their design implementation to confirm system functionality.
9.1 Application Information
The following section shows application details of the µA78xx as a linear regulator.
9.2 Typical Application
Figure 2. Fixed-Output Regulator
9.2.1 Design Requirements
• Input supply capacitor recommended for filtering noise on the input
• Output supply decoupling capacitor for stabilizing the output
9.2.2 Detailed Design Procedure
9.2.2.1 Operation With a Load Common to a Voltage of Opposite Polarity
In many cases, a regulator powers a load that is not connected to ground but, instead, is connected to a voltage
source of opposite polarity (e.g., operational amplifiers, level-shifting circuits, etc.). In these cases, a clamp diode
should be connected to the regulator output as shown in Figure 3. This protects the regulator from output polarity
reversals during startup and short-circuit operation.
Figure 3. Output Polarity-Reversal-Protection Circuit
9.2.2.2 Reverse-Bias Protection
Occasionally, the input voltage to the regulator can collapse faster than the output voltage. This can occur, for
example, when the input supply is crowbarred during an output overvoltage condition. If the output voltage is
greater than approximately 7 V, the emitter-base junction of the series-pass element (internal or external) could
break down and be damaged. To prevent this, a diode shunt can be used as shown in Figure 4.
12 Submit Documentation Feedback Copyright © 1976–2015, Texas Instruments Incorporated
Product Folder Links: uA7805 uA7808 uA7810 uA7812 uA7815 uA7824
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