TL431
- Reference voltage tolerance at 25°C
- 0.5% (B grade)
- 1% (A grade)
- 2% (Standard grade)
- Adjustable output voltage: Vref to 36V
- Operation from −40°C to 125°C
- Typical temperature drift (TL43xB)
- 6mV (C temp)
- 14mV (I temp, Q temp)
- Low Output Noise
- 0.2Ω Typical output impedance
- Sink-current capability: 1mA to 100mA
The TL431 and TL432 devices are three-terminal adjustable shunt regulators, with specified thermal stability over applicable automotive, commercial, and military temperature ranges. The output voltage can be set to any value between Vref (approximately 2.5V) and 36V, with two external resistors. These devices have a typical output impedance of 0.2Ω. Active output circuitry provides a very sharp turn-on characteristic, making these devices excellent replacements for Zener diodes in many applications, such as on-board regulation, adjustable power supplies, and switching power supplies. The TL432 device has exactly the same functionality and electrical specifications as the TL431 device, but has different pinouts for the DBV, DBZ, and PK packages.
Both the TL431 and TL432 devices are offered in three grades, with initial tolerances (at 25°C) of 0.5%, 1%, and 2%, for the B, A, and standard grade, respectively. In addition, low output drift versus temperature verifies good stability over the entire temperature range.
The TL43xxC devices are characterized for operation from 0°C to 70°C, the TL43xxI devices are characterized for operation from –40°C to 85°C, and the TL43xxQ devices are characterized for operation from –40°C to 125°C.
기술 자료
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
ATL431EVM-001 — ATL431 조정 가능 션트 레귤레이터 평가 모듈
The ATL431EVM-001 evaluation module (EVM) features the functionality and adjustability of the ATL431 by letting you program the cathode voltage with various resistor values. You can also set the cathode current using the various resistors in series with the supply. (...)
ADTEC-3P-EBIKE — DRV425 자기기계 기술을 적용한 AD-TEC 전기 자전거 토크 및 케이던스 센서
TL431 Family Unencrypted PSpice Transient and AC Model (Rev. B)
SHUNT-REFERENCE-CALC — Shunt Reference Selector and Design Calculator
TL431CALC — TL431 Design Calculator
The TL431CALC spreadsheet calculates all component parameters for any desired output voltage for the TL43x, TLV43x and TL1431. The spreadsheet includes limits for each device. Resistor values are calculated to the nearest 1% value.
많은 TI 레퍼런스 설계에는 TL431이(가) 포함됩니다.
레퍼런스 디자인 선택 툴을 사용하여 애플리케이션 및 매개 변수에 가장 적합한 설계를 검토하고 식별할 수 있습니다.
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| SOT-23 (DBZ) | 3 | Ultra Librarian |
| SOIC (D) | 8 | Ultra Librarian |
| SOT-23 (DBV) | 5 | Ultra Librarian |
| SOT-89 (PK) | 3 | Ultra Librarian |
| SOP (PS) | 8 | Ultra Librarian |
| SOT-SC70 (DCK) | 6 | Ultra Librarian |
| TO-92 (LP) | 3 | Ultra Librarian |
| TSSOP (PW) | 8 | Ultra Librarian |
| PDIP (P) | 8 | Ultra Librarian |