TLVH431B-Q1 汽车类低压可调节精密并联稳压器

TLVH431B-Q1 描述

The TLVH431 devices are low-voltage 3-terminal adjustable voltage references, with thermal stability specified over the automotive temperature range. Output voltage can be set to any value between VREF (1.24 V) and 18 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 TLVH431 devices are ideal voltage reference in isolated feedback circuits for 3-V to 3.3-V switching-mode power supplies. They have a typical output impedance of 0.25 Ohm. Active output circuitry provides a very sharp turn-on characteristic, making the TLVH431 an excellent replacement for low-voltage Zener diodes in many applications, including on-board regulation and adjustable power supplies.

	TLVH431B-Q1	TLVH431B-Q1
VO Adj(Min)(V)	1.24	1.24
VO Adj(Max)(V)	18	18
Initial Accuracy @ 25/deg C(%)	1	0.5
Min Iz for Regulation(uA)	80	80
Iout/Iz(Max)(mA)	80	80
Pin/Package	5SOT-23	5SOT-23
Approx. Price (US$)	0.35 | 1ku	0.48 | 1ku
Operating Temperature Range(°C)	-40 to 125	-40 to 125
Rating	Automotive	Automotive

TLVH431B-Q1 特点

• Qualified for Automotive Applications
• Low-Voltage Operation: Down to 1.24 V
• Reference Voltage Tolerances at 25°C
  • 0.5% for B Grade
  • 1% for A Grade
• Adjustable Output Voltage, VO = VREF to 18 V
• Wide Operating Cathode Current Range: 100 uA to 70 mA
• 0.25-Ohm Typical Output Impedance
• –40°C to 125°C Specifications

TLVH431B-Q1 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
TLVH431BQDBVRQ1	ACTIVE	-40 to 125	0.35 | 1ku	SOT-23 (DBV) | 5	3000	VOOQ

TLVH431B-Q1 质量与无铅数据

器件	环保计划*	铅/焊球涂层	MSL 等级/回流焊峰	环保信息与无铅 (Pb-free)	DPPM / MTBF / FIT 率
TLVH431BQDBVRQ1	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM		TLVH431BQDBVRQ1

TLVH431B-Q1 应用技术支持与电子电路设计开发资源下载

1. TLVH431B-Q1 数据资料 dataSheet 下载.PDF
2. TI 德州仪器并联电压基准产品选型与价格参考 . xls
3. 模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
4. 所选封装材料的热学和电学性质 (PDF 645 KB)
5. 高速数据转换 (PDF 1967 KB)
6. Shelf-Life Evaluation of Lead-Free Component Finishes (PDF 1305 KB)
7. Analog-to-Digital Converter Grounding Practices Affect System Performance (PDF 56 KB)
8. Principles of Data Acquisition and Conversion (PDF 50 KB)
9. Interleaving Analog-to-Digital Converters (PDF 64 KB)
10. What Designers Should Know About Data Converter Drift (PDF 95 KB)
11. Giving Delta-Sigma Converters a Gain Boost with a Front End Analog Gain Stage (PDF 70 KB)
12. Programming Tricks for Higher Conversion Speeds Utilizing Delta Sigma Converters (PDF 105 KB)

TLVH431B-Q1 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