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TL1431_12

更新时间： 2024-09-29 11:44:27
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德州仪器 - TI /
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PRECISION PROGRAMMABLE REFERENCE

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TL1431_12 数据手册

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TL1431  
www.ti.com  
SLVS062M –DECEMBER 1991–REVISED APRIL 2012  
PRECISION PROGRAMMABLE REFERENCE  
Check for Samples: TL1431  
1
FEATURES  
2
•
•
•
0.4% Initial Voltage Tolerance  
0.2-Ω Typical Output Impedance  
Fast Turnon…500 ns  
•
•
•
Sink Current Capability…1 mA to 100 mA  
Low Reference Current (REF)  
Adjustable Output Voltage…VI(ref) to 36 V  
D PACKAGE  
(TOP VIEW)  
JG OR PW PACKAGE  
(TOP VIEW)  
FK PACKAGE  
(TOP VIEW)  
1
2
3
4
8
7
6
5
CATHODE  
ANODE  
ANODE  
NC  
REF  
CATHODE  
NC  
REF  
NC  
ANODE  
NC  
1
2
3
4
8
7
6
5
ANODE  
ANODE  
NC  
NC  
NC  
NC – No internal connection  
ANODE terminals are connected internally  
NC – No internal connection  
.
3
2
1
20 19  
18  
NC  
NC  
NC  
NC  
NC  
NC  
4
5
6
7
8
NC  
17  
16  
15  
NC  
ANODE  
KTP PACKAGE  
(TOP VIEW)  
LP PACKAGE  
(TOP VIEW)  
14 NC  
9 10 11 12 13  
CATHODE  
ANODE  
REF  
CATHODE  
ANODE  
REF  
DESCRIPTION/ORDERING INFORMATION  
The TL1431 is a precision programmable reference with specified thermal stability over automotive, commercial,  
and military temperature ranges. The output voltage can be set to any value between VI(ref) (approximately 2.5 V)  
and 36 V with two external resistors (see Figure 19). This device has a typical output impedance of 0.2 Ω. 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 TL1431C is characterized for operation over the commercial temperature range of 0°C to 70°C. The  
TL1431Q is characterized for operation over the full automotive temperature range of –40°C to 125°C. The  
TL1431M is characterized for operation over the full military temperature range of –55°C to 125°C.  
1
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.  
2
PowerFLEX is a trademark of Texas Instruments.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 1991–2012, Texas Instruments Incorporated  
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