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TL1431-Q1 PDF预览

TL1431-Q1

更新时间: 2024-02-01 21:32:28
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德州仪器 - TI /
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19页 247K
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PRECISION PROGRAMMABLE REFERENCE

TL1431-Q1 数据手册

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ꢇꢈ ꢉꢊꢋꢌ ꢋꢍ ꢎ ꢇꢈ ꢍꢏ ꢈꢐꢑ ꢑ ꢐꢒꢁ ꢉ ꢈꢉ ꢓꢉ ꢈꢉ ꢎ ꢊꢉ  
SLVS534B − JUNE 2004 − REVISED APRIL 2008  
D PACKAGE  
(TOP VIEW)  
D
D
D
D
D
D
D
Qualified for Automotive Applications  
0.4% Initial Voltage Tolerance  
1
2
3
4
8
7
6
5
0.2-Typical Output Impedance  
Fast Turnon . . . 500 ns  
CATHODE  
ANODE  
ANODE  
NC  
REF  
ANODE  
ANODE  
NC  
Sink Current Capability . . . 1 mA to 100 mA  
Low Reference Current (REF)  
Adjustable Output Voltage . . . V  
to 36 V  
NC − No internal connection  
ANODE terminals are connected internally.  
I(ref)  
description/ordering information  
The TL1431 is a precision programmable reference with specified thermal stability over the automotive  
temperature range. The output voltage can be set to any value between V (approximately 2.5 V) and 36 V  
I(ref)  
with two external resistors (see Figure 16). This device has a typical output impedance of 0.2 . Active output  
circuitry provides a very sharp turnon characteristic, making the device an excellent replacement for Zener  
diodes and other types of references in applications such as onboard regulation, adjustable power supplies,  
and switching power supplies.  
The TL1431Q is characterized for operation over the full automotive temperature range of −40°C to 125°C.  
{
ORDERING INFORMATION  
ORDERABLE  
PART NUMBER  
TOP-SIDE  
MARKING  
T
A
PACKAGE  
−40°C to 125°C  
SOIC (D) Reel of 2500  
TL1431QDRQ1  
1431Q1  
For the most current package and ordering information, see the Package Option Addendum at the  
end of this document, or see the TI web site at http://www.ti.com.  
Package drawings, thermal data, and symbolization are available at http://www.ti.com/packaging.  
symbol  
REF  
ANODE  
CATHODE  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
ꢀꢡ  
Copyright 2008, Texas Instruments Incorporated  
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1
POST OFFICE BOX 655303 DALLAS, TEXAS 75265  

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