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TL431A-Q1 PDF预览

TL431A-Q1

更新时间: 2024-01-17 22:53:42
品牌 Logo 应用领域
德州仪器 - TI 稳压器
页数 文件大小 规格书
23页 516K
描述
ADJUSTABLE PRECISION SHUNT REGULATOR

TL431A-Q1 数据手册

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ꢀꢁ ꢂꢃ ꢄꢅ ꢆ ꢄ  
ꢇꢈꢉ ꢊꢋ ꢀꢇꢌꢁ ꢍ ꢎꢏ ꢍꢐꢑꢋ ꢑꢒ ꢓ ꢋꢔꢊ ꢓꢀ ꢏꢍ ꢕ ꢊꢁ ꢇꢀꢒ ꢏ  
SGLS302C − MARCH 2005 − REVISED APRIL 2008  
DBV (SOT-23-5) PACKAGE  
(TOP VIEW)  
D
D
D
Qualified for Automotive Applications  
Operation From −40°C to 125°C  
Reference Voltage Tolerance at 25°C  
− 1% . . . A Grade  
1
NC  
ANODE  
REF  
5
4
2
3
NC  
− 0.5% . . . B Grade  
CATHODE  
D
Typical Temperature Drift  
− 14 mV (Q Temp)  
NC − No internal connection  
Pin 2 is connected internally to ANODE  
(die substrate) and should be floating or  
connected to ANODE.  
D
D
D
D
Low Output Noise  
0.2-Typical Output Impedance  
Sink-Current Capability = 1 mA to 100 mA  
TL431, TL431A, TL431B  
DBZ (SOT-23-5) PACKAGE  
(TOP VIEW)  
Adjustable Output Voltage = V to 36 V  
ref  
1
CATHODE  
5
ANODE  
description  
2
REF  
The TL431 is a three-terminal adjustable shunt  
regulator with specified thermal stability over  
applicable automotive temperature ranges. The output voltage can be set to any value between V  
ref  
(approximately 2.5 V) and 36 V, with two external resistors (see Figure 17). This device has a typical output  
impedance of 0.2 . Active output circuitry provides a sharp turn-on characteristic, making this device an  
excellent replacement for Zener diodes in many applications, such as onboard regulation, adjustable power  
supplies, and switching power supplies.  
{
Ordering Information  
ORDERABLE  
PART NUMBER  
TOP-SIDE  
MARKING  
T
A
PACKAGE  
SOT-23-5 (DBV)  
Reel of 3000  
Reel of 3000  
Reel of 3000  
Reel of 3000  
TL431AQDBVRQ1  
TL431BQDBZRQ1  
TL431QDBVRQ1  
TL431AQDBZRQ1  
TACQ  
T3FU  
T3QU  
TAQU  
SOT-23-3 (DBZ)  
SOT-23-5 (DBV)  
SOT-23-3 (DBZ)  
−40°C to 125°C  
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  
functional block diagram  
CATHODE  
+
_
REF  
V
ref  
ANODE  
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.  
PowerFLEX is a trademark of Texas Instruments.  
ꢀꢡ  
Copyright 2008, Texas Instruments Incorporated  
ꢝ ꢡ ꢞ ꢝꢖ ꢗꢫ ꢙꢘ ꢜ ꢤꢤ ꢢꢜ ꢚ ꢜ ꢛ ꢡ ꢝ ꢡ ꢚ ꢞ ꢦ  
1
POST OFFICE BOX 655303 DALLAS, TEXAS 75265  

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