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TLV431B

更新时间： 2024-09-26 03:59:23
品牌 Logo 应用领域
德州仪器 - TI 稳压器
页数 文件大小 规格书
31页 787K
描述
LOW-VOLTAGE ADJUSTABLE PRECISION SHUNT REGULATORS

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TLV431B 数据手册

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SLVS139S − JULY 1996 − REVISED JANUARY 2006  
D
D
D
Low-Voltage Operation . . . V  
= 1.24 V  
D
Low Operational Cathode Current . . .  
80 µA Typ  
0.25-Ω Typical Output Impedance  
Ultra-Small SC-70 Package Offers 40%  
Smaller Footprint Than SOT-23-3  
REF  
Adjustable Output Voltage, V = V  
to 6 V  
O
REF  
D
Reference Voltage Tolerances at 255C  
− 0.5% for TLV431B  
D
− 1% for TLV431A  
− 1.5% for TLV431  
D
See TLVH431 and TLVH432 for  
D
Typical Temperature Drift  
− 4 mV (05C to 705C)  
− Wider V  
(1.24 V to 18 V) and I (80 mA)  
KA K  
− Additional SOT-89 Package  
− Multiple Pinouts for SOT-23-3 and SOT-89  
Packages  
− 6 mV (–405C to 855C)  
− 11 mV (–405C to 1255C)  
D (SOIC) PACKAGE  
(TOP VIEW)  
DBV (SOT-23-5) PACKAGE  
(TOP VIEW)  
DBZ (SOT-23-3) PACKAGE  
(TOP VIEW)  
1
1
2
3
4
8
7
6
5
1
2
3
5
4
REF  
NC  
*
CATHODE  
ANODE  
REF  
REF  
CATHODE  
ANODE  
ANODE  
NC  
3
ANODE  
ANODE  
ANODE  
NC  
2
CATHODE  
NC − No internal connection  
* For TLV431, TLV431A: NC − No internal connection  
* For TLV431B: Pin 2 is attached to Substrate and  
must be connected to ANODE or  
left open.  
PK (SOT-89) PACKAGE  
(TOP VIEW)  
DCK (SC-70) PACKAGE  
(TOP VIEW)  
LP (TO-92/TO-226) PACKAGE  
(TOP VIEW)  
CATHODE  
3
2
1
CATHODE  
NC  
ANODE  
NC  
NC  
1
2
3
6
5
4
CATHODE  
ANODE  
ANODE  
REF  
ANODE  
REF  
REF  
NC − No internal connection  
description/ordering information  
The TLV431 is a low-voltage 3-terminal adjustable voltage reference with specified thermal stability over  
applicable industrial and commercial temperature ranges. Output voltage can be set to any value between V  
REF  
(1.24 V) and 6 V with two external resistors (see Figure 2). These devices operate from a lower voltage  
(1.24 V) than the widely used TL431 and TL1431 shunt-regulator references.  
When used with an optocoupler, the TLV431 is an ideal voltage reference in isolated feedback circuits for 3-V  
to 3.3-V switching-mode power supplies. These devices have a typical output impedance of 0.25 Ω. Active  
output circuitry provides a very sharp turn-on characteristic, making them excellent replacements for  
low-voltage Zener diodes in many applications, including on-board regulation and adjustable power supplies.  
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.  
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Copyright 2006, Texas Instruments Incorporated  
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1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1234567...31

中文翻译

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TLV431B 替代型号

型号 品牌 替代类型 描述 数据表
TLV431B-Q1 TI

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TLVH431B TI

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 LOW-VOLTAGE ADJUSTABLE PRECISION SHUNT REGULATOR

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