TLVH431B-Q1
- 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 µA to 70 mA
- 0.25-
Typical Output Impedance - –40°C to 125°C Specifications
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 . 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.
기술 자료
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 최신 영어 버전 다운로드 | 날짜 |
|---|---|---|---|---|---|
| * | 데이터 시트 | TLVH431A-Q1, TLVH431B-Q1 Low-Voltage Adjustable Precision Shunt Regulator . datasheet (Rev. B) | 2011. 3. 28 | ||
| 기능 안전 정보 | TLVH431B-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA | PDF | HTML | 2021. 9. 22 | ||
| e북 | Voltage Supervisor and Reset ICs: Tips, Tricks and Basics | 2019. 6. 28 | |||
| Application brief | Automotive LED Lighting with Adjustable Shunt References | 2018. 7. 17 |
설계 및 개발
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SHUNT-REFERENCE-CALC — Shunt Reference Selector and Design Calculator
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| SOT-23 (DBZ) | 3 | Ultra Librarian |
| SOT-23 (DBV) | 5 | Ultra Librarian |