TLA432
- No output capacitor required
- Stable with all capacitive loads
- Reference voltage tolerance at 25°C
- 1% (A grade)
- Adjustable output voltage: Vref to 36V
- Operation from −40°C to 125°C
- Typical temperature drift (TLA43xA)
- 8mV (I temp)
- 11mV (Q temp)
- Low Output Noise
- 0.2Ω Typical output impedance
- Sink-current capability: 0.2mA to 100mA
- Pin-compatible with industry-standard TL431 and TL432
The TLA431 and TLA432 devices are three-terminal adjustable shunt regulators that are stable with all capacitor loads. The devices are pin compatible with the industry standard TL431 and TL432 but with improved stability to support all capacitor loads. The output cathode voltage can be set to any value between Vref (2.495V) 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 onboard regulation, adjustable power supplies, and switching power supplies. The TLA431 also functions as a comparator for undervoltage monitoring. The internal amplifier and reference of the TLA431 is used an error amplifier in isolated optocoupler flyback power supplies. The TLA432 device has exactly the same functionality and electrical specifications as the TLA431 device.
The TLA431 and TLA432 devices are specified in two temperature grades, I and Q. In addition, the devices offer good stability reference voltage over the entire temperature range.
技术文档
类型 | 标题 | 下载最新的英语版本 | 日期 | |||
---|---|---|---|---|---|---|
* | 数据表 | TLA431, TLA432 All-Capacitor Stable Precision Programmable Reference 数据表 (Rev. A) | PDF | HTML | 2024年 10月 29日 |
设计和开发
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ATL431EVM-001 — ATL431 可调节分流稳压器评估模块
通过使用不同的电阻值编程阴极电压,ATL431EVM-001 评估模块 (EVM) 可实现 ATL431 的功能和可调节性。您也可以使用与电源串联的各个电阻器设置阴极电流。除可用于 EVM 外,电阻器还可焊接至电路板,根据具体应用来定制电路板。使用此 EVM 可检验 ATL431 的稳定性,通过跳线可在阳极和阴极之间连接 12 个以上输出电容器。此 EVM 还与采用 SOT23-3 封装的 TL431、TL431LI、ATL431LI、LM431 和 TLVH432 器件兼容。
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封装 | 引脚 | CAD 符号、封装和 3D 模型 |
---|---|---|
SOT-23 (DBZ) | 3 | Ultra Librarian |
订购和质量
- RoHS
- REACH
- 器件标识
- 引脚镀层/焊球材料
- MSL 等级/回流焊峰值温度
- MTBF/时基故障估算
- 材料成分
- 鉴定摘要
- 持续可靠性监测
- 制造厂地点
- 封装厂地点