ATL432
- Adjustable Regulated Output of 2.5V to 36V
- Very-Low Operating Current
- IKA(min) = 35µA (Maximum)
- IREF = 150nA (Maximum)
- Internally Compensated for Stability
- Stable With No Capacitive Load
- Reference Voltage Tolerances at 25°C
- 0.5% for B Grade
- 1% for A Grade
- Typical Temperature Drift
- 5mV (–40°C to +85°C); I Version
- 6mV (–40°C to +125°C); Q Version
- Extended Cathode Current Range 35µA to 100mA
- Low Output Impedance of 0.3Ω (Maximum)
The ATL431 and ATL432 are three-terminal adjustable shunt regulators, with specified thermal stability over applicable automotive, commercial, and industrial 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 0.05Ω. Active output circuitry provides a very sharp turn-on characteristic, making these devices excellent replacements for Zener diodes in many applications, such as onboard regulation, adjustable power supplies, and switching power supplies.
The ATL43x has > 20x improvement cathode current range over its TL43x predecessor. It also is stable with a wider range of load capacitance types and values.
ATL431 and ATL432 are the exact same parts but with different pinouts and order numbers. The ATL43x is offered in two grades, with initial tolerances (at 25°C) of 0.5%, 1%, for the B and A grade, respectively. In addition, low output drift vs temperature ensures consistent voltage regulation over the entire temperature range.
The ATL43xxI devices are characterized for operation from –40°C to +85°C, and the ATL43xxQ devices are characterized for operation from –40°C to +125°C.
技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | ATL43x 2.5V Low Iq Adjustable Precision Shunt Regulator datasheet (Rev. E) | PDF | HTML | 2024年 12月 4日 |
E-book | Tips and tricks for designing with voltage references (Rev. A) | 2021年 5月 7日 | ||
Application note | Using the TL431 for Undervoltage and Overvoltage Detection (Rev. A) | 2019年 12月 11日 | ||
Selection guide | 431 Device Nomenclature (Rev. B) | 2019年 9月 18日 | ||
E-book | Voltage Supervisor and Reset ICs: Tips, Tricks and Basics | 2019年 6月 28日 | ||
Technical article | Designing for isolated DC/DC converter shunt safety | PDF | HTML | 2015年 8月 29日 |
設計與開發
如需其他條款或必要資源,請按一下下方的任何標題以檢視詳細頁面 (如有)。
ATL431EVM-001 — ATL431 可調整分流穩壓器評估模組
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. (...)
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
---|---|---|
SOT-23 (DBZ) | 3 | Ultra Librarian |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
- 晶圓廠位置
- 組裝地點