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ATL432LI

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高带宽、低 IQ 可编程并联稳压器（引脚排列：RKA）

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ATL432LI

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产品详情

Rating Catalog VO (V) 2.5 Initial accuracy (max) (%) 0.5, 1 Iz for regulation (min) (µA) 80 VO adj (min) (V) 2.5 VO adj (max) (V) 36 Reference voltage (V) adjustable Temp coeff (max) (ppm/°C) 66 Operating temperature range (°C) -40 to 125 Iout/Iz (max) (mA) 15
Rating Catalog VO (V) 2.5 Initial accuracy (max) (%) 0.5, 1 Iz for regulation (min) (µA) 80 VO adj (min) (V) 2.5 VO adj (max) (V) 36 Reference voltage (V) adjustable Temp coeff (max) (ppm/°C) 66 Operating temperature range (°C) -40 to 125 Iout/Iz (max) (mA) 15
SOT-23 (DBZ) 3 6.9204 mm² (2.92 mm × 2.37 mm)
  • Reference voltage tolerance at 25°C
    • 0.5% (B Grade)
    • 1% (A Grade)
  • Minimum typical output voltage: 2.5 V
  • Adjustable output voltage: Vref to 36 V
  • Operation from −40°C to +125°C (Q temp)
  • Maximum temperature drift
    • 17 mV (I Temp)
    • 27 mV (Q Temp)
  • 0.3-Ω Typical output impedance
  • Sink-current capability
    • Imin = 0.08 mA (max)
    • IKA = 15 mA (max)
  • Reference input current IREF: 0.4 µA (max)
  • Deviation of reference input current over temperature, II(dev): 0.3 µA (max)
  • Packages: 1-mm x 1-mm X2SON or SOT23-3
  • Reference voltage tolerance at 25°C
    • 0.5% (B Grade)
    • 1% (A Grade)
  • Minimum typical output voltage: 2.5 V
  • Adjustable output voltage: Vref to 36 V
  • Operation from −40°C to +125°C (Q temp)
  • Maximum temperature drift
    • 17 mV (I Temp)
    • 27 mV (Q Temp)
  • 0.3-Ω Typical output impedance
  • Sink-current capability
    • Imin = 0.08 mA (max)
    • IKA = 15 mA (max)
  • Reference input current IREF: 0.4 µA (max)
  • Deviation of reference input current over temperature, II(dev): 0.3 µA (max)
  • Packages: 1-mm x 1-mm X2SON or SOT23-3

The ATL43xLI device is a three-terminal adjustable shunt regulator, with specified thermal stability over applicable automotive, commercial, and military temperature ranges. The output voltage can be set to any value between Vref (approximately 2.5 V) and 36 V, with two external resistors. These devices have a typical output impedance of 0.3 Ω. 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. This device is a pin-to-pin alternative to the TL431LI and TL432LI, with lower minimum operating current to help reduce system power consumption. The ATL432LI device has exactly the same functionality and electrical specifications as the ATL431LI device, but has a different pinout for the DBZ package. The ATL431LI is also offered in a tiny X2SON (1.00 mm x 1.00 mm) package which makes it ideal for space constraint applications.

The ATL431LI device is offered in two grades, with initial tolerances (at 25°C) of 0.5%, and 1%, for the B and A grade, respectively. In addition, low output drift versus temperature ensures good stability over the entire temperature range.

The ATL43xLIxQ devices are characterized for operation from –40°C to +125°C.

The ATL43xLI device is a three-terminal adjustable shunt regulator, with specified thermal stability over applicable automotive, commercial, and military temperature ranges. The output voltage can be set to any value between Vref (approximately 2.5 V) and 36 V, with two external resistors. These devices have a typical output impedance of 0.3 Ω. 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. This device is a pin-to-pin alternative to the TL431LI and TL432LI, with lower minimum operating current to help reduce system power consumption. The ATL432LI device has exactly the same functionality and electrical specifications as the ATL431LI device, but has a different pinout for the DBZ package. The ATL431LI is also offered in a tiny X2SON (1.00 mm x 1.00 mm) package which makes it ideal for space constraint applications.

The ATL431LI device is offered in two grades, with initial tolerances (at 25°C) of 0.5%, and 1%, for the B and A grade, respectively. In addition, low output drift versus temperature ensures good stability over the entire temperature range.

The ATL43xLIxQ devices are characterized for operation from –40°C to +125°C.
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顶层文档 类型 标题 格式选项 下载最新的英语版本 日期
* 数据表 ATL431LI / ATL432LI High Bandwidth Low-Iq Programmable Shunt Regulator 数据表 (Rev. D) PDF | HTML 2019-11-21
应用手册 使用电压基准的精密电流源和电流阱 PDF | HTML PDF | HTML 2026-4-20
应用手册 Using the TL431 for Undervoltage and Overvoltage Detection (Rev. A) 2019-12-11
选择指南 431 Device Nomenclature (Rev. B) 2019-9-18
电子书 电压监测仪和电压检测器：提示、技巧和基础知识 英语版 2019-8-28
应用手册 Designing with the ATL431LI 2018-11-27

设计与开发

如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。

仿真模型

ATL431LI PSpice Transient Model

SLVMCW7.ZIP (56 KB) - PSpice 模型
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仿真模型

ATL431LI Unencrypted PSpice Transient Model

SLVMCW6.ZIP (2 KB) - PSpice 模型
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计算工具

SHUNT-REFERENCE-CALC — Shunt Reference Selector and Design Calculator

This tool guides the user through the design process for the TLx431 and LM40x0 family of shunt voltage references. This calculator will recommend resistance and capacitance values to optimally meet the user's desired specifications.
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参考设计

PMP22087 — 具有 80 PLUS 铂金兼容性能的 336W 无辅助交流/直流电源参考设计

该参考设计是一种交流/直流电源设计，具有临界传导模式 (CRM) PFC 和半桥 LLC 串联谐振转换器，可从通用输入交流电压（90VAC 至 264VAC）提供 24V/240W 连续、336W 峰值输出。该设计使用 UCC28056 CRM/DCM PFC 控制器、UCC256404 增强型 LLC 控制器和具有突发模式的 UCC24612-2 同步整流器控制器，以实现低待机功耗。该设计在 115VAC 电压下功耗为 87mW，在 230VAC 电压下功耗为 124mW，并且在 115VAC 输入下可实现 93.4% 的峰值效率，在 230VAC 输入下可实现 95.3% (...)
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参考设计

PMP22144 — 15W 直流输入反激参考设计

此参考设计可利用 UCC28742 反激式控制器和 ATL432LI 变流基准，该变流基准通过 85V 至 480Vac 输入生成支持 0.625A 的隔离式 24V 输出。所有组件均布置在电路板的一侧，以降低复杂性和成本。此设计可在各种输入条件下实现 80% 的效率。
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封装 引脚 CAD 符号、封装和 3D 模型
SOT-23 (DBZ) 3 Ultra Librarian
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