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TL431AIDR2G 数据手册 - ON Semiconductor（安森美）
制造商:
ON Semiconductor（安森美）
分类:
电压基准芯片
封装:
SOIC-8
描述:
ON SEMICONDUCTOR TL431AIDR2G 电压基准, 精密, 分流 - 可调, TL431A系列, 2.495V至36V, SOIC-8
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P21P22
原理图在P1P19P21P24
封装尺寸在P31P32P33P34P35P36P37P38P39P40P41P42
标记信息在P31P32P33P34P35P36P37P38P39P40P41P42
封装信息在P30P31P32P33P34P35P36P37P38P39P40P41
技术参数、封装参数在P4
应用领域在P1P21P22P73
电气规格在P5P6P7P8P9P10P11P12P13P20P24
导航目录
TL431AIDR2G数据手册
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若手册格式错乱，请下载阅览PDF原文件
ANODE
REF
CATHODE
2.4 kΩ
7.2 kΩ
3.28 kΩ
20 pF
4 kΩ
1 kΩ
800 Ω
800 Ω
800 Ω
20 pF
150 Ω
10 kΩ
CATHODE
REF
ANODE
+
_
V
ref
TL431
,
TL431A
,
TL431B
TL432
,
TL432A
,
TL432B
www.ti.com
SLVS543O –AUGUST 2004–REVISED JANUARY 2015
9 Detailed Description
9.1 Overview
This standard device has proven ubiquity and versatility across a wide range of applications, ranging from power
to signal path. This is due to it's key components containing an accurate voltage reference & opamp, which are
very fundamental analog building blocks. TL43xx is used in conjunction with it's key components to behave as a
single voltage reference, error amplifier, voltage clamp or comparator with integrated reference.
TL43xx can be operated and adjusted to cathode voltages from 2.5V to 36V, making this part optimum for a wide
range of end equipments in industrial, auto, telecom & computing. In order for this device to behave as a shunt
regulator or error amplifier, >1mA (I
min
(max)) must be supplied in to the cathode pin. Under this condition,
feedback can be applied from the Cathode and Ref pins to create a replica of the internal reference voltage.
Various reference voltage options can be purchased with initial tolerances (at 25°C) of 0.5%, 1%, and 2%. These
reference options are denoted by B (0.5%), A (1.0%) and blank (2.0%) after the TL431 or TL432. TL431 & TL432
are both functionaly, but have separate pinout options.
The TL43xxC devices are characterized for operation from 0°C to 70°C, the TL43xxI devices are characterized
for operation from –40°C to 85°C, and the TL43xxQ devices are characterized for operation from –40°C to
125°C.
9.2 Functional Block Diagram
Figure 23. Equivalent Schematic
Figure 24. Detailed Schematic
Copyright © 2004–2015, Texas Instruments Incorporated Submit Documentation Feedback 19
Product Folder Links: TL431 TL431A TL431B TL432 TL432A TL432B
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