TLV431 低电压可调节精密并联稳压器
TLV431 描述
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 VREF (1.24 V) and 6 V with two external resistors. 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.
|
TLV431 |
TLV431A |
TLV431B |
| VO Adj(Min)(V) |
1.24 |
1.24 |
1.24 |
| VO Adj(Max)(V) |
6 |
6 |
6 |
| Initial Accuracy @ 25/deg C(%) |
1.5 |
1 |
0.5 |
| Temp Coeff(Max)(ppm/ degree C) |
129 |
129 |
|
| Temp Coeff(Typ)(ppm/ degree C) |
39 |
39 |
|
| Min Iz for Regulation(uA) |
80 |
80 |
80 |
| Iout/Iz(Max)(mA) |
15 |
15 |
15 |
| Pin/Package |
3SOT-23, 3SOT-89, 3TO-92, 5SOT-23 |
3SOT-23, 3SOT-89, 3TO-92, 5SOT-23, 8SOIC |
3SOT-23, 3TO-92, 3SOT-89, 5SOT-23, 6SC70 |
| Approx. Price (US$) |
0.23 | 1ku |
0.32 | 1ku |
0.38 | 1ku |
| Operating Temperature Range(°C) |
-40 to 125,-40 to 85,0 to 70 |
-40 to 125,-40 to 85,0 to 70 |
-40 to 125,-40 to 85,0 to 70 |
| Rating |
Catalog |
Catalog |
Catalog |
TLV431 特性
- Low-Voltage Operation...VREF = 1.24 V
- Adjustable Output Voltage, VO = VREF to 6 V
- Reference Voltage Tolerances at 25°C
- 0.5% for TLV431
- 1% for TLV431
- 1.5% for TLV431
- Typical Temperature Drift
- 4 mV (0°C to 70°C)
- 6 mV (–40°C to 85°C)
- 11 mV (–40°C to 125°C)
- 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
- See TLVH431 and TLVH432 for
- Wider VKA (1.24 V to 18 V) and IK (80 mA)
- Additional SOT-89 Package
- Multiple Pinouts for SOT-23-3 and SOT-89 Packages
TLV431 芯片订购指南
| 器件 |
状态 |
温度 (oC) |
价格（美元） |
封装 | 引脚 |
封装数量 | 封装载体 |
丝印标记 |
| TLV431CDBVR |
ACTIVE |
0 to 70 |
0.38 | 1ku |
SOT-23 (DBV) | 5 |
3000 | LARGE T&R |
(Y3GG, Y3GU) |
| TLV431CDBVRE4 |
ACTIVE |
0 to 70 |
0.38 | 1ku |
SOT-23 (DBV) | 5 |
3000 | LARGE T&R |
(Y3GG, Y3GU) |
| TLV431CDBVRG4 |
ACTIVE |
0 to 70 |
0.38 | 1ku |
SOT-23 (DBV) | 5 |
3000 | LARGE T&R |
(Y3GG, Y3GU) |
| TLV431CDBVT |
ACTIVE |
0 to 70 |
0.65 | 1ku |
SOT-23 (DBV) | 5 |
250 | SMALL T&R |
(Y3GG, Y3GU) |
| TLV431CDBVTE4 |
ACTIVE |
0 to 70 |
0.65 | 1ku |
SOT-23 (DBV) | 5 |
250 | SMALL T&R |
(Y3GG, Y3GU) |
| TLV431CDBVTG4 |
ACTIVE |
0 to 70 |
0.65 | 1ku |
SOT-23 (DBV) | 5 |
250 | SMALL T&R |
(Y3GG, Y3GU) |
| TLV431CDBZR |
ACTIVE |
0 to 70 |
0.42 | 1ku |
SOT-23 (DBZ) | 3 |
3000 | LARGE T&R |
(Y3G3, Y3GS, Y3GU) |
| TLV431CDBZRG4 |
ACTIVE |
0 to 70 |
0.42 | 1ku |
SOT-23 (DBZ) | 3 |
3000 | LARGE T&R |
(Y3G3, Y3GS, Y3GU) |
| TLV431CDBZT |
ACTIVE |
0 to 70 |
0.70 | 1ku |
SOT-23 (DBZ) | 3 |
250 | SMALL T&R |
(Y3G3, Y3GS, Y3GU) |
| TLV431CDBZTG4 |
ACTIVE |
0 to 70 |
0.70 | 1ku |
SOT-23 (DBZ) | 3 |
250 | SMALL T&R |
(Y3G3, Y3GS, Y3GU) |
| TLV431CDCKR |
ACTIVE |
0 to 70 |
0.38 | 1ku |
SC70 (DCK) | 6 |
3000 | LARGE T&R |
YEU |
| TLV431CDCKRE4 |
ACTIVE |
0 to 70 |
0.38 | 1ku |
SC70 (DCK) | 6 |
3000 | LARGE T&R |
YEU |
| TLV431CDCKRG4 |
ACTIVE |
0 to 70 |
0.38 | 1ku |
SC70 (DCK) | 6 |
3000 | LARGE T&R |
YEU |
| TLV431CDCKT |
ACTIVE |
0 to 70 |
0.65 | 1ku |
SC70 (DCK) | 6 |
250 | SMALL T&R |
YEU |
| TLV431CDCKTE4 |
ACTIVE |
0 to 70 |
0.65 | 1ku |
SC70 (DCK) | 6 |
250 | SMALL T&R |
YEU |
| TLV431CDCKTG4 |
ACTIVE |
0 to 70 |
0.65 | 1ku |
SC70 (DCK) | 6 |
250 | SMALL T&R |
YEU |
| TLV431CLP |
ACTIVE |
0 to 70 |
0.38 | 1ku |
TO-92 (LP) | 3 |
1000 | BULK |
TV431B |
| TLV431CLPE3 |
ACTIVE |
0 to 70 |
0.38 | 1ku |
TO-92 (LP) | 3 |
1000 | BULK |
TV431B |
| TLV431CLPR |
ACTIVE |
0 to 70 |
0.38 | 1ku |
TO-92 (LP) | 3 |
2000 | LARGE T&R |
TV431B |
| TLV431CLPRE3 |
ACTIVE |
0 to 70 |
0.38 | 1ku |
TO-92 (LP) | 3 |
2000 | LARGE T&R |
TV431B |
| TLV431CPK |
ACTIVE |
0 to 70 |
0.38 | 1ku |
SOT-89 (PK) | 3 |
1000 | LARGE T&R |
VE |
| TLV431CPKG3 |
ACTIVE |
0 to 70 |
0.38 | 1ku |
SOT-89 (PK) | 3 |
1000 | LARGE T&R |
VE |
| TLV431IDBVR |
ACTIVE |
-40 to 85 |
0.38 | 1ku |
SOT-23 (DBV) | 5 |
3000 | LARGE T&R |
(Y3GG, Y3GU) |
| TLV431IDBVRE4 |
ACTIVE |
-40 to 85 |
0.38 | 1ku |
SOT-23 (DBV) | 5 |
3000 | LARGE T&R |
(Y3GG, Y3GU) |
| TLV431IDBVRG4 |
ACTIVE |
-40 to 85 |
0.38 | 1ku |
SOT-23 (DBV) | 5 |
3000 | LARGE T&R |
(Y3GG, Y3GU) |
| TLV431IDBVT |
ACTIVE |
-40 to 85 |
0.65 | 1ku |
SOT-23 (DBV) | 5 |
250 | SMALL T&R |
(Y3GG, Y3GU) |
| TLV431IDBVTE4 |
ACTIVE |
-40 to 85 |
0.65 | 1ku |
SOT-23 (DBV) | 5 |
250 | SMALL T&R |
(Y3GG, Y3GU) |
| TLV431IDBVTG4 |
ACTIVE |
-40 to 85 |
0.65 | 1ku |
SOT-23 (DBV) | 5 |
250 | SMALL T&R |
(Y3GG, Y3GU) |
| TLV431IDBZR |
ACTIVE |
-40 to 85 |
0.42 | 1ku |
SOT-23 (DBZ) | 3 |
3000 | LARGE T&R |
(Y3G3, Y3GS, Y3GU) |
| TLV431IDBZRG4 |
ACTIVE |
-40 to 85 |
0.42 | 1ku |
SOT-23 (DBZ) | 3 |
3000 | LARGE T&R |
(Y3G3, Y3GS, Y3GU) |
| TLV431IDBZT |
ACTIVE |
-40 to 85 |
0.70 | 1ku |
SOT-23 (DBZ) | 3 |
250 | SMALL T&R |
(Y3G3, Y3GS, Y3GU) |
| TLV431IDBZTG4 |
ACTIVE |
-40 to 85 |
0.70 | 1ku |
SOT-23 (DBZ) | 3 |
250 | SMALL T&R |
(Y3G3, Y3GS, Y3GU) |
| TLV431IDCKR |
ACTIVE |
-40 to 85 |
0.38 | 1ku |
SC70 (DCK) | 6 |
3000 | LARGE T&R |
YEU |
| TLV431IDCKRE4 |
ACTIVE |
-40 to 85 |
0.38 | 1ku |
SC70 (DCK) | 6 |
3000 | LARGE T&R |
YEU |
| TLV431IDCKRG4 |
ACTIVE |
-40 to 85 |
0.38 | 1ku |
SC70 (DCK) | 6 |
3000 | LARGE T&R |
YEU |
| TLV431IDCKT |
ACTIVE |
-40 to 85 |
0.65 | 1ku |
SC70 (DCK) | 6 |
250 | SMALL T&R |
YEU |
| TLV431IDCKTE4 |
ACTIVE |
-40 to 85 |
0.65 | 1ku |
SC70 (DCK) | 6 |
250 | SMALL T&R |
YEU |
| TLV431IDCKTG4 |
ACTIVE |
-40 to 85 |
0.65 | 1ku |
SC70 (DCK) | 6 |
250 | SMALL T&R |
YEU |
| TLV431ILP |
ACTIVE |
-40 to 85 |
0.38 | 1ku |
TO-92 (LP) | 3 |
1000 | BULK |
TV431B |
| TLV431ILPE3 |
ACTIVE |
-40 to 85 |
0.38 | 1ku |
TO-92 (LP) | 3 |
1000 | BULK |
TV431B |
| TLV431ILPR |
ACTIVE |
-40 to 85 |
0.38 | 1ku |
TO-92 (LP) | 3 |
2000 | LARGE T&R |
TV431B |
| TLV431ILPRE3 |
ACTIVE |
-40 to 85 |
0.38 | 1ku |
TO-92 (LP) | 3 |
2000 | LARGE T&R |
TV431B |
| TLV431IPK |
ACTIVE |
-40 to 85 |
0.38 | 1ku |
SOT-89 (PK) | 3 |
1000 | LARGE T&R |
VE |
| TLV431IPKG3 |
ACTIVE |
-40 to 85 |
0.38 | 1ku |
SOT-89 (PK) | 3 |
1000 | LARGE T&R |
VE |
| TLV431QDBVR |
ACTIVE |
-40 to 125 |
0.38 | 1ku |
SOT-23 (DBV) | 5 |
3000 | LARGE T&R |
(Y3GG, Y3GU) |
| TLV431QDBVRE4 |
ACTIVE |
-40 to 125 |
0.38 | 1ku |
SOT-23 (DBV) | 5 |
3000 | LARGE T&R |
(Y3GG, Y3GU) |
| TLV431QDBVRG4 |
ACTIVE |
-40 to 125 |
0.38 | 1ku |
SOT-23 (DBV) | 5 |
3000 | LARGE T&R |
(Y3GG, Y3GU) |
| TLV431QDBVT |
ACTIVE |
-40 to 125 |
0.65 | 1ku |
SOT-23 (DBV) | 5 |
250 | SMALL T&R |
(Y3GG, Y3GU) |
| TLV431QDBVTE4 |
ACTIVE |
-40 to 125 |
0.65 | 1ku |
SOT-23 (DBV) | 5 |
250 | SMALL T&R |
(Y3GG, Y3GU) |
| TLV431QDBVTG4 |
ACTIVE |
-40 to 125 |
0.65 | 1ku |
SOT-23 (DBV) | 5 |
250 | SMALL T&R |
(Y3GG, Y3GU) |
| TLV431QDBZR |
ACTIVE |
-40 to 125 |
0.42 | 1ku |
SOT-23 (DBZ) | 3 |
3000 | LARGE T&R |
(Y3G3, Y3GS, Y3GU) |
| TLV431QDBZRG4 |
ACTIVE |
-40 to 125 |
0.42 | 1ku |
SOT-23 (DBZ) | 3 |
3000 | LARGE T&R |
(Y3G3, Y3GS, Y3GU) |
| TLV431QDBZT |
ACTIVE |
-40 to 125 |
0.70 | 1ku |
SOT-23 (DBZ) | 3 |
250 | SMALL T&R |
(Y3G3, Y3GS, Y3GU) |
| TLV431QDBZTG4 |
ACTIVE |
-40 to 125 |
0.70 | 1ku |
SOT-23 (DBZ) | 3 |
250 | SMALL T&R |
(Y3G3, Y3GS, Y3GU) |
| TLV431QDCKR |
ACTIVE |
-40 to 125 |
0.38 | 1ku |
SC70 (DCK) | 6 |
3000 | LARGE T&R |
YEU |
| TLV431QDCKRE4 |
ACTIVE |
-40 to 125 |
0.38 | 1ku |
SC70 (DCK) | 6 |
3000 | LARGE T&R |
YEU |
| TLV431QDCKRG4 |
ACTIVE |
-40 to 125 |
0.38 | 1ku |
SC70 (DCK) | 6 |
3000 | LARGE T&R |
YEU |
| TLV431QDCKT |
ACTIVE |
-40 to 125 |
0.65 | 1ku |
SC70 (DCK) | 6 |
250 | SMALL T&R |
YEU |
| TLV431QDCKTE4 |
ACTIVE |
-40 to 125 |
0.65 | 1ku |
SC70 (DCK) | 6 |
250 | SMALL T&R |
YEU |
| TLV431QDCKTG4 |
ACTIVE |
-40 to 125 |
0.65 | 1ku |
SC70 (DCK) | 6 |
250 | SMALL T&R |
YEU |
| TLV431QLP |
ACTIVE |
-40 to 125 |
0.38 | 1ku |
TO-92 (LP) | 3 |
1000 | BULK |
TV431B |
| TLV431QLPE3 |
ACTIVE |
-40 to 125 |
0.38 | 1ku |
TO-92 (LP) | 3 |
1000 | BULK |
TV431B |
| TLV431QLPR |
ACTIVE |
-40 to 125 |
0.38 | 1ku |
TO-92 (LP) | 3 |
2000 | LARGE T&R |
TV431B |
| TLV431QLPRE3 |
ACTIVE |
-40 to 125 |
0.38 | 1ku |
TO-92 (LP) | 3 |
2000 | LARGE T&R |
TV431B |
| TLV431QPK |
ACTIVE |
-40 to 125 |
0.38 | 1ku |
SOT-89 (PK) | 3 |
1000 | LARGE T&R |
VE |
| TLV431QPKG3 |
ACTIVE |
-40 to 125 |
0.38 | 1ku |
SOT-89 (PK) | 3 |
1000 | LARGE T&R |
VE |
TLV431 应用技术支持与电子电路设计开发资源下载
- TLV431 数据资料 dataSheet 下载.PDF
- TI 德州仪器并联电压基准产品选型与价格参考 . xls
- 模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
- 所选封装材料的热学和电学性质 (PDF 645 KB)
- 高速数据转换 (PDF 1967 KB)
- Shelf-Life Evaluation of Lead-Free Component Finishes (PDF
1305 KB)
- Analog-to-Digital Converter Grounding Practices Affect System
Performance (PDF 56 KB)
- Principles of Data Acquisition and Conversion (PDF 50 KB)
- Interleaving Analog-to-Digital Converters (PDF 64 KB)
- What
Designers Should Know About Data Converter Drift (PDF 95 KB)
- Giving Delta-Sigma Converters a Gain Boost with a Front End
Analog Gain Stage (PDF 70 KB)
- Programming Tricks for Higher Conversion Speeds Utilizing Delta
Sigma Converters (PDF 105 KB)
TLV431 工具与软件
| 名称 |
型号 |
公司 |
工具/软件类型 |
| 针对 Code Composer Studio 的 DCPFREETOOL 软件插件 |
DCPFREETOOL |
Texas Instruments |
实用程序/插件 |
| MDACBufferPro Design Utility for Multiplying Digital to Analog Converter Design |
MDACBUFFERPRO |
Texas Instruments |
应用软件 |
