TL432BCDBZR

厂商：
BURR-BROWN(德州仪器)
封装：
SOT-23
描述：
IC VREF SHUNT ADJ 0.5% SOT23-3

数据手册：

下载TL432BCDBZR.pdf

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数据手册
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TL432BCDBZR 数据手册

TL431, TL432 ZHCSJ14Q – AUGUST 2004 – REVISED JULY 2022 TL431、TL432 精密可编程基准 1 特性 3 说明 • 25°C 下的基准电压容差 – 0.5%（B 级） – 1%（A 级） – 2%（标准级） • 可调输出电压：Vref 至 36V • 工作温度范围：−40°C 至 125°C • 典型温度漂移 (TL43xB) – 6mV（C 级温度） – 14mV（I 级温度，Q 级温度） • 低输出噪声 • 0.2Ω 输出阻抗典型值 • 灌电流能力：1mA 至 100mA TL431LI/TL432LI 是 TL431/TL432 的引脚对引脚替代产品。TL43xLI 具有更好的稳定性、更低温漂 (VI(dev)) 以及更低基准电流 (Iref)，从而提高了系统精度。 2 应用 • • • • • 可调节电压和电流基准反激式开关模式电源 (SMPS) 中的次级侧调节齐纳二极管替代产品电压监测具有集成基准的比较器 VKA Input IKA TL431 和 TL432 器件是三端可调节并联稳压器，在适用的汽车级、商用级和军用级温度范围内均可满足规定的热稳定性。可以通过两个外部电阻器将输出电压设置为介于 Vref（约为 2.5V）和 36V 之间的任意值。其输出阻抗典型值均为 0.2Ω。此类器件的有源输出电路具有非常明显的导通特性，因此非常适合用于替代许多应用中的齐纳二极管，例如板载稳压器、可调节电源和开关电源。TL432 器件具有与 TL431 器件完全相同的功能和电气特性，但是具有不同的 DBV、DBZ 和 PK 封装引脚排列。 TL431 和 TL432 器件都具有 B、A 和标准三个等级， 25°C 下的初始容差分别为 0.5%、1% 和 2%。此外，低输出温漂可确保在整个温度范围内保持出色的稳定性。 TL43xxC 器件运行温度范围为 0°C 至 70°C，TL43xxI 器件运行温度范围为 –40°C 至 85°C，TL43xxQ 器件运行温度范围为 –40°C 至 125°C。器件信息器件型号 (1) Vref TL43x 简化版原理图 (1) 封装（引脚）封装尺寸（标称值） SOT-23-3 (3) 2.90mm x 1.30mm SOT-23-5 (5) 2.90mm × 1.60mm SOIC (8) 4.90mm × 3.90mm PDIP (8) 9.50mm × 6.35mm SOP (8) 6.20mm x 5.30mm 如需了解所有可用封装，请参阅数据表末尾的可订购产品附录。本文档旨在为方便起见，提供有关 TI 产品中文版本的信息，以确认产品的概要。有关适用的官方英文版本的最新信息，请访问 www.ti.com，其内容始终优先。TI 不保证翻译的准确性和有效性。在实际设计之前，请务必参考最新版本的英文版本。 English Data Sheet: SLVS543 TL431, TL432 www.ti.com.cn ZHCSJ14Q – AUGUST 2004 – REVISED JULY 2022 内容 1 特性................................................................................... 1 2 应用................................................................................... 1 3 说明................................................................................... 1 4 修订历史记录..................................................................... 2 5 器件比较表.........................................................................3 6 引脚配置和功能................................................................. 4 7 规格................................................................................... 6 7.1 绝对最大额定值...........................................................6 7.2 ESD 等级.................................................................... 6 7.3 热性能信息.................................................................. 6 7.4 建议运行条件.............................................................. 6 7.5 电气特性，TL431C、TL432C.....................................7 7.6 电气特性，TL431I、TL432I........................................ 8 7.7 电气特性，TL431Q、TL432Q.................................... 9 7.8 电气特性，TL431AC、TL432AC.............................. 10 7.9 电气特性，TL431AI、TL432AI................................. 11 7.10 电气特性，TL431AQ、TL432AQ............................12 7.11 电气特性，TL431BC、TL432BC............................ 13 7.12 电气特性，TL431BI、TL432BI............................... 14 7.13 电气特性，TL431BQ、TL432BQ............................15 8 参数测量信息................................................................... 20 9 详细说明.......................................................................... 21 9.1 概述...........................................................................21 9.2 功能方框图................................................................ 21 9.3 特性说明....................................................................22 9.4 器件功能模式............................................................ 22 10 应用和实现.....................................................................23 10.1 应用信息..................................................................23 10.2 典型应用..................................................................23 10.3 系统示例..................................................................28 11 电源相关建议................................................................. 31 12 布局............................................................................... 31 12.1 布局指南..................................................................31 12.2 布局示例..................................................................31 13 器件和文档支持............................................................. 32 13.1 器件命名规则.......................................................... 32 13.2 相关链接..................................................................32 13.3 接收文档更新通知................................................... 32 13.4 支持资源..................................................................32 13.5 商标.........................................................................32 13.6 Electrostatic Discharge Caution..............................32 13.7 术语表..................................................................... 33 14 机械、封装和可订购信息............................................... 33 4 修订历史记录 Changes from Revision P (November 2018) to Revision Q (July 2022) Page • 更新了整个文档中的表格、图和交叉引用的编号格式......................................................................................... 1 • 更正了引脚功能表中的器件名称......................................................................................................................... 4 Changes from Revision O (January 2015) to Revision P (November 2018) Page • 向说明部分添加了文本.......................................................................................................................................1 • 添加了 TL43x 器件比较表 .................................................................................................................................. 3 • 添加了 TL43x 器件命名规则部分...................................................................................................................... 32 Changes from Revision N (January 2014) to Revision O (January 2015) Page • 添加了应用、器件信息表、引脚功能表、ESD 等级表、热性能信息表、特性说明部分、器件功能模式、应用和实现部分、电源相关建议部分、布局部分、器件和文档支持部分以及机械、封装和可订购信息部分..... 1 • 添加了“应用”...................................................................................................................................................1 • 将典型特性移至规格部分。...........................................................................................................................0 Changes from Revision M (July 2012) to Revision N (January 2014) Page • 更新了文档格式...................................................................................................................................................1 • 删除了订购信息表............................................................................................................................................... 4 • 添加了应用手册链接。......................................................................................................................................23 2 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TL431 TL432 TL431, TL432 www.ti.com.cn ZHCSJ14Q – AUGUST 2004 – REVISED JULY 2022 5 器件比较表器件引脚分配初始精度自然通风条件下的工作温度 (TA) TL431 TL432 B：0.5% A：1% （空白）：2% C：0°C 至 70°C I：-40°C 至 85°C Q：-40°C 至 125°C Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TL431 TL432 3 TL431, TL432 www.ti.com.cn ZHCSJ14Q – AUGUST 2004 – REVISED JULY 2022 6 引脚配置和功能 TL431, TL431A, TL431B . . . LP (TO-92/TO-226) PACKAGE (TOP VIEW) TL431A, TL431B . . . DCK (SC-70) PACKAGE (TOP VIEW) TL431 . . . KTP (PowerFLEX /TO-252) PACKAGE (TOP VIEW) CATHODE ANODE CATHODE ANODE CATHODE NC REF ANODE REF REF 1 6 2 5 3 4 ANODE NC NC NC − No internal connection TL431, TL431A, TL431B . . . D (SOIC) PACKAGE (TOP VIEW) CATHODE ANODE ANODE NC 1 8 2 7 3 6 4 5 TL431, TL431A, TL431B . . . P (PDIP), PS (SOP), OR PW (TSSOP) PACKAGE (TOP VIEW) REF ANODE ANODE NC CATHODE NC NC NC NC − No internal connection 1 8 2 7 3 6 4 5 REF NC ANODE NC NC − No internal connection TL431, TL431A, TL431B . . . PK (SOT-89) PACKAGE (TOP VIEW) TL432, TL432A, TL432B . . . PK (SOT-89) PACKAGE (TOP VIEW) REF ANODE ANODE CATHODE ANODE ANODE REF CATHODE TL432, TL432A, TL432B . . . DBV (SOT-23-5) PACKAGE (TOP VIEW) TL431, TL431A, TL431B . . . DBV (SOT-23-5) PACKAGE (TOP VIEW) NC 1 † 2 CATHODE 3 5 ANODE 4 REF ANODE 2 NC 3 REF 1 CATHODE 2 1 3 5 REF 4 CATHODE TL432, TL432A, TL432B . . . DBZ (SOT-23-3) PACKAGE (TOP VIEW) TL431, TL431A, TL431B . . . DBZ (SOT-23-3) PACKAGE (TOP VIEW) REF 1 NC − No internal connection NC − No internal connection † Pin 2 is attached to Substrate and must be connected to ANODE or left open. CATHODE NC ANODE 3 2 ANODE 表 6-1. 引脚功能引脚 TL431x 名称 4 TL432x 类型 DBZ DBV PK D P、PS PW LP KTP DCK DBZ DBV PK CATHODE （阴极） 1 3 3 1 1 1 1 1 2 4 1 I/O REF（基准） 2 4 1 8 8 3 3 3 1 5 3 I Submit Document Feedback 说明并联电流/电压输入相对于通用阳极的阈值 Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TL431 TL432 TL431, TL432 www.ti.com.cn ZHCSJ14Q – AUGUST 2004 – REVISED JULY 2022 表 6-1. 引脚功能 (continued) 引脚 TL431x 名称 ANODE （阳极） DBZ DBV PK D P、PS PW 3 5 2 2、 3、 6、7 6 TL432x 类型 LP KTP DCK DBZ DBV PK 2 2 6 3 2 2 O 说明通用引脚，通常接地 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TL431 TL432 5 TL431, TL432 www.ti.com.cn ZHCSJ14Q – AUGUST 2004 – REVISED JULY 2022 7 规格 7.1 绝对最大额定值在自然通风条件下的工作温度范围内测得（除非另有说明）(1) 最小值 VKA 阴极电压(2) IKA 最大值单位 37 V 连续阴极电流范围 –100 150 mA II(ref) 基准输入电流范围 –0.05 10 mA TJ 工作等效结温 150 °C 150 °C Tstg (1) (2) -65 存储温度范围超出绝对最大额定值”下列出的压力可能会对器件造成永久损坏。这些仅为压力额定值，并不表示器件在这些条件下以及在建议运行条件以外的任何其他条件下能够正常运行。长时间处于绝对最大额定条件下可能会影响器件的可靠性。除非另有说明，否则所有电压值均以 ANODE 为基准。 7.2 ESD 等级值 V(ESD） (1) (2) 静电放电单位人体放电模型 (HBM)，符合 ANSI/ESDA/JEDEC JS-001 标准(1) ±2000 充电器件模型 (CDM)，符合 JEDEC 规范 JESD22-C101(2) ±1000 V JEDEC 文件 JEP155 指出：500V HBM 可实现在标准 ESD 控制流程下安全生产。若部署必要的预防措施，则可以在低于 500V HBM 时进行生产。 JEDEC 文档 JEP157 指出：250V CDM 能够在标准 ESD 控制流程下安全生产。若部署必要的预防措施，则可以在低于 250V CDM 时进行生产。 7.3 热性能信息 TL43xx 热指标(1) P PW D PS 8 引脚 DCK DBV DBZ LP PK 6 引脚 5 引脚 RθJA 结至环境热阻 85 149 97 95 259 206 206 140 52 RθJC(top) 结至外壳（顶部）热阻 57 65 39 46 87 131 76 55 9 (1) 单位 3 引脚 °C/W 有关新旧热指标的更多信息，请参阅 IC 封装热指标应用报告 (SPRA953)。 7.4 建议运行条件请参阅(1) VKA 阴极电压 IKA 阴极电流 TL43xxC TA (1) 6 自然通风条件下的工作温度范围最小值最大值 Vref 36 V 1 100 mA 0 70 TL43xxI -40 85 TL43xxQ -40 125 单位 ℃ 最大功耗是与 TJ(max)、θJA 和 TA 相关的函数。在任何允许的环境温度下，允许的最大功耗为 PD = (TJ(max) – TA)/θJA。在 150°C 的绝对最大 TJ 下运行可能会影响可靠性。 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TL431 TL432 TL431, TL432 www.ti.com.cn ZHCSJ14Q – AUGUST 2004 – REVISED JULY 2022 7.5 电气特性，TL431C、TL432C 在推荐的工作条件下测得，TA = 25°C（除非另有说明）参数测试电路 TL431C、TL432C 测试条件 Vref 基准电压请参阅图 8-1 VKA = Vref，IKA = 10mA VI(dev) 整个温度范围内的基准输入电压偏差(1) 请参阅图 8-1 VKA = Vref， IKA = 10mA，最小值典型值最大值 2440 2495 2550 6 16 SOT23-3 和 TL432 器件 4 25 ΔVKA = 10V – Vref –1.4 –2.7 ΔVKA = 36V – 10V –1 -2 所有其他器件单位 mV mV ΔVref / ΔVKA 基准电压变化与阴极电压变化之比请参阅图 8-2 IKA = 10mA Iref 基准输入电流请参阅图 8-2 IKA = 10mA，R1 = 10kΩ，R2 = ∞ 2 4 µA II(dev) 整个温度范围内的基准输入电流偏差(1) 请参阅图 8-2 IKA = 10mA，R1 = 10kΩ，R2 = ∞ 0.4 1.2 µA Imin 调节的最小阴极电流请参阅图 8-1 VKA = Vref 0.4 1 mA Ioff 关闭状态阴极电流请参阅图 8-3 VKA = 36V，Vref = 0 0.1 1 µA |zKA| 动态阻抗(2) 请参阅图 8-1 VKA = Vref，f ≤ 1kHz， IKA = 1mA 至 100mA 0.2 0.5 Ω (1) (2) mV/V 偏差参数 Vref(dev) 和 Iref(dev) 是指在额定温度范围内获得的最大和最小值之间的差异。基准输入电压的平均全范围温度系数 αVref 定义为： αVref 可能是正数，也可能是负数，具体取决于较低温度条件下出现的是最小 Vref 还是最大 Vref。 ∆VKA |zKA| = ∆IKA 动态阻抗定义为：当器件在配备两个外部电阻器的情况下运行时（请参阅图 8-2），电路的总动态阻抗为： ( ( |z'| = ∆V |z | 1 + R1 R2 。 ∆I 这约等于： KA Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TL431 TL432 7 TL431, TL432 www.ti.com.cn ZHCSJ14Q – AUGUST 2004 – REVISED JULY 2022 7.6 电气特性，TL431I、TL432I 在推荐的工作条件下测得，TA = 25°C（除非另有说明）参数 8 测试电路 TL431I、TL432I 测试条件 Vref 基准电压请参阅图 8-1 VKA = Vref，IKA = 10mA VI(dev) 整个温度范围内的基准输入电压偏差(1) 请参阅图 8-1 VKA = Vref， IKA = 10mA 最小值典型值最大值 2440 SOT23-3 和 TL432 器件 2495 2550 14 34 5 50 ΔVKA = 10V – Vref –1.4 –2.7 ΔVKA = 36V – 10V –1 -2 所有其他器件单位 mV mV ΔVref / ΔVKA 基准电压变化与阴极电压变化之比请参阅图 8-2 IKA = 10mA Iref 基准输入电流请参阅图 8-2 IKA = 10mA，R1 = 10kΩ，R2 = ∞ 2 4 µA II(dev) 整个温度范围内的基准输入电流偏差(1) 请参阅图 8-2 IKA = 10mA，R1 = 10kΩ，R2 = ∞ 0.8 2.5 µA Imin 调节的最小阴极电流请参阅图 8-1 VKA = Vref 0.4 1 mA Ioff 关闭状态阴极电流请参阅图 8-3 VKA = 36V，Vref = 0 0.1 1 µA |zKA| 动态阻抗(2) 请参阅图 8-1 VKA = Vref，f ≤ 1kHz， IKA = 1mA 至 100mA 0.2 0.5 Ω Submit Document Feedback mV/V Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TL431 TL432 TL431, TL432 www.ti.com.cn ZHCSJ14Q – AUGUST 2004 – REVISED JULY 2022 7.7 电气特性，TL431Q、TL432Q 在推荐的工作条件下测得，TA = 25°C（除非另有说明）参数测试电路测试条件 Vref 基准电压请参阅图 8-1 VKA = Vref，IKA = 10mA VI(dev) 整个温度范围内的基准输入电压偏差(1) 请参阅图 8-1 VKA = Vref，IKA = 10mA ΔVref / ΔVKA 基准电压变化与阴极电压变化之比请参阅图 8-2 IKA = 10mA Iref 基准输入电流请参阅图 8-2 II(dev) 整个温度范围内的基准输入电流偏差(1) Imin 调节的最小阴极电流 TL431Q、TL432Q 最小值典型值最大值 2495 2550 mV 14 34 mV ΔVKA = 10V – Vref –1.4 –2.7 ΔVKA = 36V – 10V –1 -2 IKA = 10mA，R1 = 10kΩ，R2 = ∞ 2 4 µA 请参阅图 8-2 IKA = 10mA，R1 = 10kΩ，R2 = ∞ 0.8 2.5 µA 请参阅图 8-1 VKA = Vref 0.4 1 mA 0.1 1 µA 0.2 0.5 Ω Ioff 关闭状态阴极电流请参阅图 8-3 VKA = 36V，Vref = 0 |zKA| 动态阻抗(2) 请参阅图 8-1 VKA = Vref，f ≤ 1kHz， IKA = 1mA 至 100mA 2440 单位 mV/V Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TL431 TL432 9 TL431, TL432 www.ti.com.cn ZHCSJ14Q – AUGUST 2004 – REVISED JULY 2022 7.8 电气特性，TL431AC、TL432AC 在推荐的工作条件下测得，TA = 25°C（除非另有说明）参数测试电路 TL431AC、TL432AC 测试条件 Vref 基准电压请参阅图 8-1 VKA = Vref，IKA = 10mA VI(dev) 整个温度范围内的基准输入电压偏差(1) 请参阅图 8-1 VKA = Vref， IKA = 10mA 最小值典型值最大值 2470 SOT23-3 和 TL432 器件 2495 2520 6 16 4 25 ΔVKA = 10V – Vref –1.4 –2.7 ΔVKA = 36V – 10V –1 -2 所有其他器件单位 mV mV ΔVref / ΔVKA 基准电压变化与阴极电压变化之比请参阅图 8-2 IKA = 10mA Iref 基准输入电流请参阅图 8-2 IKA = 10mA，R1 = 10kΩ，R2 = ∞ 2 4 µA II(dev) 整个温度范围内的基准输入电流偏差(1) 请参阅图 8-2 IKA = 10mA，R1 = 10kΩ，R2 = ∞ 0.8 1.2 µA Imin 调节的最小阴极电流请参阅图 8-1 VKA = Vref 0.4 0.6 mA Ioff 关闭状态阴极电流请参阅图 8-3 VKA = 36V，Vref = 0 0.1 0.5 µA |zKA| 动态阻抗(2) 请参阅图 8-1 VKA = Vref，f ≤ 1kHz， IKA = 1mA 至 100mA 0.2 0.5 Ω 10 Submit Document Feedback mV/V Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TL431 TL432 TL431, TL432 www.ti.com.cn ZHCSJ14Q – AUGUST 2004 – REVISED JULY 2022 7.9 电气特性，TL431AI、TL432AI 在推荐的工作条件下测得，TA = 25°C（除非另有说明）参数测试电路测试条件 Vref 基准电压请参阅图 8-1 VKA = Vref，IKA = 10mA VI(dev) 整个温度范围内的基准输入电压偏差(1) 请参阅图 8-1 VKA = Vref， IKA = 10mA SOT23-3 和 TL432 器件 TL431AI、TL432AI 最小值典型值最大值 2470 2495 2520 14 34 5 50 ΔVKA = 10V – Vref –1.4 –2.7 ΔVKA = 36V – 10V –1 -2 所有其他器件单位 mV mV ΔVref / ΔVKA 基准电压变化与阴极电压变化之比请参阅图 8-2 IKA = 10mA Iref 基准输入电流请参阅图 8-2 IKA = 10mA，R1 = 10kΩ，R2 = ∞ 2 4 µA II(dev) 整个温度范围内的基准输入电流偏差(1) 请参阅图 8-2 IKA = 10mA，R1 = 10kΩ，R2 = ∞ 0.8 2.5 µA Imin 调节的最小阴极电流请参阅图 8-1 VKA = Vref 0.4 0.7 mA Ioff 关闭状态阴极电流请参阅图 8-3 VKA = 36V，Vref = 0 0.1 0.5 µA |zKA| 动态阻抗(2) 请参阅图 8-1 VKA = Vref，f ≤ 1kHz， IKA = 1mA 至 100mA 0.2 0.5 Ω mV/V Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TL431 TL432 11 TL431, TL432 www.ti.com.cn ZHCSJ14Q – AUGUST 2004 – REVISED JULY 2022 7.10 电气特性，TL431AQ、TL432AQ 在推荐的工作条件下测得，TA = 25°C（除非另有说明）参数测试电路 Vref 基准电压请参阅图 8-1 VKA = Vref，IKA = 10mA VI(dev) 整个温度范围内的基准输入电压偏差(1) 请参阅图 8-1 VKA = Vref，IKA = 10mA ΔVref / ΔVKA 基准电压变化与阴极电压变化之比请参阅图 8-2 IKA = 10mA Iref 基准输入电流请参阅图 8-2 II(dev) 整个温度范围内的基准输入电流偏差(1) Imin 调节的最小阴极电流最小值典型值最大值 2520 mV 14 34 mV ΔVKA = 10V – Vref –1.4 –2.7 ΔVKA = 36V – 10V –1 -2 IKA = 10mA，R1 = 10kΩ，R2 = ∞ 2 4 µA 请参阅图 8-2 IKA = 10mA，R1 = 10kΩ，R2 = ∞ 0.8 2.5 µA 请参阅图 8-1 VKA = Vref 0.4 0.7 mA 0.1 0.5 µA 0.2 0.5 Ω 关闭状态阴极电流请参阅图 8-3 VKA = 36V，Vref = 0 |zKA| 动态阻抗(2) 请参阅图 8-1 VKA = Vref，f ≤ 1kHz， IKA = 1mA 至 100mA Submit Document Feedback 2470 单位 2495 Ioff 12 TL431AQ、TL432AQ 测试条件 mV/V Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TL431 TL432 TL431, TL432 www.ti.com.cn ZHCSJ14Q – AUGUST 2004 – REVISED JULY 2022 7.11 电气特性，TL431BC、TL432BC 在推荐的工作条件下测得，TA = 25°C（除非另有说明）参数测试电路测试条件 Vref 基准电压请参阅图 8-1 VKA = Vref，IKA = 10mA VI(dev) 整个温度范围内的基准输入电压偏差(1) 请参阅图 8-1 VKA = Vref，IKA = 10mA ΔVref / ΔVKA 基准电压变化与阴极电压变化之比请参阅图 8-2 IKA = 10mA Iref 基准输入电流请参阅图 8-2 II(dev) 整个温度范围内的基准输入电流偏差(1) Imin 调节的最小阴极电流 TL431BC、TL432BC 最小值典型值最大值 2495 2507 mV 6 16 mV ΔVKA = 10V – Vref –1.4 –2.7 ΔVKA = 36V – 10V - -2 IKA = 10mA，R1 = 10kΩ，R2 = ∞ 2 4 µA 请参阅图 8-2 IKA = 10mA，R1 = 10kΩ，R2 = ∞ 0.8 1.2 µA 请参阅图 8-1 VKA = Vref 0.4 0.6 mA 0.1 0.5 µA 0.2 0.5 Ω Ioff 关闭状态阴极电流请参阅图 8-3 VKA = 36V，Vref = 0 |zKA| 动态阻抗(2) 请参阅图 8-1 VKA = Vref，f ≤ 1kHz， IKA = 1mA 至 100mA 2483 单位 mV/V Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TL431 TL432 13 TL431, TL432 www.ti.com.cn ZHCSJ14Q – AUGUST 2004 – REVISED JULY 2022 7.12 电气特性，TL431BI、TL432BI 在推荐的工作条件下测得，TA = 25°C（除非另有说明）参数测试电路 Vref 基准电压请参阅图 8-1 VKA = Vref，IKA = 10mA VI(dev) 整个温度范围内的基准输入电压偏差(1) 请参阅图 8-1 VKA = Vref，IKA = 10mA ΔVref / ΔVKA 基准电压变化与阴极电压变化之比请参阅图 8-2 IKA = 10mA Iref 基准输入电流请参阅图 8-2 II(dev) 整个温度范围内的基准输入电流偏差(1) Imin 调节的最小阴极电流最小值典型值最大值 2507 mV 14 34 mV ΔVKA = 10V – Vref –1.4 –2.7 ΔVKA = 36V – 10V –1 -2 IKA = 10mA，R1 = 10kΩ，R2 = ∞ 2 4 µA 请参阅图 8-2 IKA = 10mA，R1 = 10kΩ，R2 = ∞ 0.8 2.5 µA 请参阅图 8-1 VKA = Vref 0.4 0.7 mA 0.1 0.5 µA 0.2 0.5 Ω 关闭状态阴极电流请参阅图 8-3 VKA = 36V，Vref = 0 |zKA| 动态阻抗(2) 请参阅图 8-1 VKA = Vref，f ≤ 1kHz， IKA = 1mA 至 100mA Submit Document Feedback 2483 单位 2495 Ioff 14 TL431BI、TL432BI 测试条件 mV/V Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TL431 TL432 TL431, TL432 www.ti.com.cn ZHCSJ14Q – AUGUST 2004 – REVISED JULY 2022 7.13 电气特性，TL431BQ、TL432BQ 在推荐的工作条件下测得，TA = 25°C（除非另有说明）参数测试电路测试条件 Vref 基准电压请参阅图 8-1 VKA = Vref，IKA = 10mA VI(dev) 整个温度范围内的基准输入电压偏差(1) 请参阅图 8-1 VKA = Vref，IKA = 10mA ΔVref / ΔVKA 基准电压变化与阴极电压变化之比请参阅图 8-2 IKA = 10mA Iref 基准输入电流请参阅图 8-2 II(dev) 整个温度范围内的基准输入电流偏差(1) Imin 调节的最小阴极电流 TL431BQ、TL432BQ 最小值典型值最大值 2495 2507 mV 14 34 mV ΔVKA = 10V – Vref –1.4 –2.7 ΔVKA = 36V – 10V –1 -2 IKA = 10mA，R1 = 10kΩ，R2 = ∞ 2 4 µA 请参阅图 8-2 IKA = 10mA，R1 = 10kΩ，R2 = ∞ 0.8 2.5 µA 请参阅图 8-1 VKA = Vref 0.4 0.7 mA 0.1 0.5 µA 0.2 0.5 Ω Ioff 关闭状态阴极电流请参阅图 8-3 VKA = 36V，Vref = 0 |zKA| 动态阻抗(2) 请参阅图 8-1 VKA = Vref，f ≤ 1kHz， IKA = 1mA 至 100mA 2483 单位 mV/V Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TL431 TL432 15 TL431, TL432 www.ti.com.cn ZHCSJ14Q – AUGUST 2004 – REVISED JULY 2022 典型特性高温和低温下的数据仅适用于各种器件在自然通风条件下的推荐工作温度范围内。 2600 5 Vref = 2550 mV 4 I ref − Reference Current − µA 2560 V ref − Reference Voltage − mV R1 = 10 kΩ R2 =∞ IKA = 10 mA VKA = Vref IKA = 10 mA 2580 2540 2520 Vref = 2495 mV 2500 2480 2460 Vref = 2440 mV 2440 3 2 1 2420 2400 −75 −50 −25 0 25 50 75 100 0 −75 125 −50 图 7-1. 基准电压与自然通风温度之间的关系 25 0 50 75 100 125 图 7-2. 基准电流与自然通风温度之间的关系 800 150 VKA = Vref TA = 25°C 125 VKA = Vref TA = 25°C 600 I KA − Cathode Current − µ A 100 I KA − Cathode Current − mA −25 TA − Free-Air Temperature − °C TA − Free-Air Temperature − °C 75 50 25 0 −25 −50 Imin 400 200 0 −75 −100 −2 −1 0 2 1 −200 −1 3 0 VKA − Cathode Voltage − V 1 图 7-3. 阴极电流与阴极电压之间的关系 − 0.85 VKA = 36 V Vref = 0 VKA = 3 V to 36 V − 0.95 2 ∆V ref / ∆V KA − mV/V I off − Off-State Cathode Current − µA 3 图 7-4. 阴极电流与阴极电压之间的关系 2.5 1.5 1 0.5 −1.05 −1.15 −1.25 −1.35 16 0 −75 16 −50 −25 0 25 50 75 100 125 −1.45 −75 TA − Free-Air Temperature − °C −50 −25 0 25 50 75 100 125 TA − Free-Air Temperature − °C 图 7-5. 关闭状态阴极电流与自然通风条件下的温度之间的关系 16 2 VKA − Cathode Voltage − V 图 7-6. Δ 基准电压与 Δ 阴极电压之比与自然通风条件下的温度之间的关系 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TL431 TL432 TL431, TL432 www.ti.com.cn ZHCSJ14Q – AUGUST 2004 – REVISED JULY 2022 典型特性高温和低温下的数据仅适用于各种器件在自然通风条件下的推荐工作温度范围内。 6 IO = 10 mA TA = 25°C 240 V n − Equivalent Input Noise V oltage − µV Vn − Equivalent Input Noise V oltage − nV/ Hz 260 220 200 180 160 140 120 16 100 10 100 1k 10 k 5 4 3 2 1 0 −1 −2 −3 f = 0.1 to 10 Hz IKA = 10 mA TA = 25°C −4 −5 −6 100 k 0 1 2 3 f − Frequency − Hz 4 5 6 7 8 9 10 t − Time − s 图 7-7. 等效输入噪声电压与频率之间的关系图 7-8. 10S 周期内的等效输入噪声电压 19.1 V 1 kΩ 500 µF 910 Ω 2000 µF VCC TL431 (DUT) VCC 1 µF TLE2027 AV = 10 V/mV + 820 Ω + − 16 kΩ 16 kΩ − 16 Ω 160 kΩ 1 µF TLE2027 22 µF To Oscilloscope 33 kΩ AV = 2 V/V 0.1 µF 33 kΩ VEE VEE 图 7-9. 10S 周期内等效输入噪声电压的测试电路 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TL431 TL432 17 TL431, TL432 www.ti.com.cn ZHCSJ14Q – AUGUST 2004 – REVISED JULY 2022 典型特性高温和低温下的数据仅适用于各种器件在自然通风条件下的推荐工作温度范围内。 IKA = 10 mA TA = 25°C A V − Small-Signal V oltage Amplification − dB 60 IKA = 10 mA TA = 25°C 50 Output 40 IKA 15 kΩ 232 Ω 30 9 µF + 20 − 8.25 kΩ 10 GND 0 1k 10 k 100 k 1M 10 M f − Frequency − Hz 图 7-11. 电压放大测试电路图 7-10. 小信号电压放大与频率之间的关系 |z KA| − Reference Impedance − Ω 100 1 kΩ Output IKA = 10 mA TA = 25°C IKA 50 Ω 10 − + GND 1 图 7-13. 基准阻抗测试电路 0.1 1k 10 k 100 k 1M 10 M f − Frequency − Hz 图 7-12. 基准阻抗与频率之间的关系 6 220 Ω TA = 25°C Output Input Input and Output V oltage − V 5 Pulse Generator f = 100 kHz 4 3 50 Ω Output GND 2 1 0 −1 图 7-15. 脉冲响应测试电路 0 1 2 3 4 5 6 7 t − Time − µs 图 7-14. 脉冲响应 18 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TL431 TL432 TL431, TL432 www.ti.com.cn ZHCSJ14Q – AUGUST 2004 – REVISED JULY 2022 典型特性高温和低温下的数据仅适用于各种器件在自然通风条件下的推荐工作温度范围内。 100 90 I KA − Cathode Current − mA 80 A V KA B V KA C VKA D VKA 150 Ω = Vref =5V = 10 V = 15 Vf TA = 25°C IKA + B VBATT CL 70 − Stable 60 C Stable 50 A 40 TEST CIRCUIT FOR CURVE A 30 D 20 IKA 10 R1 = 10 kΩ 0 0.001 0.01 0.1 10 1 150 Ω CL CL − Load Capacitance − µF + 曲线下的区域表示可能导致器件振荡的条件。针对曲线 B、C R2 VBATT − 和 D，对 R2 和 V+ 进行了调整，以建立初始 VKA 和 IKA 条件，且 CL = 0。然后，对 VBATT 和 CL 进行了调整，以确定稳定范围。 TEST CIRCUIT FOR CURVES B, C, AND D 图 7-17. 稳定性边界条件测试电路图 7-16. 所有 TL431 和 TL431A 器件的稳定性边界条件（SOT23-3、SC-70 和 Q 级温度器件除外） 100 90 I KA − Cathode Current − mA 80 A VKA B V KA C VKA D VKA 150 Ω = Vref =5V = 10 V = 15 Vf IKA + 70 VBATT CL B − TA = 25°C 60 C Stable Stable 50 A TEST CIRCUIT FOR CURVE A 40 A 30 D IKA 20 R1 = 10 kΩ B 150 Ω 10 0 0.001 CL 0.01 0.1 1 + 10 R2 CL − Load Capacitance − µF VBATT − 曲线下的区域表示可能导致器件振荡的条件。针对曲线 B、C 和 D，对 R2 和 V+ 进行了调整，以建立初始 VKA 和 IKA 条件，且 CL = 0。然后，对 VBATT 和 CL 进行了调整，以确定稳 TEST CIRCUIT FOR CURVES B, C, AND D 定范围。图 7-19. 稳定性边界条件测试电路图 7-18. 所有 TL431B、TL432、SOT-23、SC-70 和 Q 级温度器件的稳定性边界条件 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TL431 TL432 19 TL431, TL432 www.ti.com.cn ZHCSJ14Q – AUGUST 2004 – REVISED JULY 2022 8 参数测量信息 VKA Input IKA Vref 图 8-1. 针对 VKA = Vref 的测试电路 Input VKA IKA R1 Iref R2 Vref R1 ö æ VKA = Vref ç 1 + ÷ + Iref × R1 R2 è ø 图 8-2. 针对 VKA > Vref 的测试电路 Input VKA Ioff 图 8-3. 针对 Ioff 的测试电路 20 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TL431 TL432 TL431, TL432 www.ti.com.cn ZHCSJ14Q – AUGUST 2004 – REVISED JULY 2022 9 详细说明 9.1 概述此标准器件已经证明可广泛应用于从电源到信号路径的各种应用。这是由于它的关键组件包含精确的电压基准和运算放大器，这是非常基本的模拟构建块。TL43xx 与其关键元器件搭配使用，可用作单个电压基准、误差放大器、电压钳位或具有集成基准的比较器。 TL43xx 能够运行并调整到 2.5V 至 36V 的阴极电压，这使得该器件成为了工业、汽车、电信和计算领域中各种终端设备的最佳选择。若要将该器件用作并联稳压器或误差放大器，必须为阴极引脚提供 >1mA (Imin(max)) 的电流。在这种情况下，可以从阴极引脚和基准引脚施加反馈，以创建内部基准电压的副本。您可以购买初始容差为 0.5%、1% 和 2%（在 25°C 条件下）的各种基准电压选件。这些基准选件以在 TL431 或 TL432 之后跟 B (0.5%)、A (1.0%) 和空白 (2.0%) 的形式表示。TL431 和 TL432 的功能相同，但具有不同的引脚排列选项。 TL43xxC 器件运行温度范围为 0°C 至 70°C，TL43xxI 器件运行温度范围为 –40°C 至 85°C，TL43xxQ 器件运行温度范围为 –40°C 至 125°C。 9.2 功能方框图 CATHODE + REF _ Vref ANODE 图 9-1. 等效原理图 CATHODE 800 Ω 800 Ω 20 pF REF 150 Ω 3.28 kΩ 2.4 kΩ 7.2 kΩ 4 kΩ 10 kΩ 20 pF 1 kΩ 800 Ω ANODE 图 9-2. 详细的原理图 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TL431 TL432 21 TL431, TL432 www.ti.com.cn ZHCSJ14Q – AUGUST 2004 – REVISED JULY 2022 9.3 特性说明 TL43xx 由内部基准和根据基准引脚和虚拟内部引脚之间的差异输出灌电流的放大器组成。该灌电流由内部达林顿对产生，如上文中的原理图（图 9-2）所示。使用达林顿对是为了使该器件能够吸收最高 100mA 的电流。在具有足够电压余量 (≥ 2.5V) 和阴极电流 (IKA) 的情况下，TL431 会强行将基准引脚的电压控制在 2.5V。但是，基准引脚不能悬空，因为它需要 IREF ≥ 4µA（请参阅电气特性，TL431C、TL432C）。这是因为基准引脚会被驱动到 npn 中，后者要有基极电流才能正常工作。当从阴极引脚和基准引脚施加反馈时，TL43xx 将作为齐纳二极管，根据向阴极提供的电流将输出电压调节至恒定电压。这是由于内部放大器和基准进入了适当的运行区域。在开环、伺服或误差放大实现中，为了使该器件保持在合适的线性区域，必须向其施加与在反馈情况下所需电流的大小相同的电流，从而使 TL43xx 具有足够的增益。与许多线性稳压器不同的是，TL43xx 通过内部补偿来达到稳定，无需在阴极和阳极之间使用输出电容器。但是，如果需要为该器件使用输出电容器，图 9-2 可提供指导，帮助用户选择用于保持稳定性的合适电容器。 9.4 器件功能模式 9.4.1 开环（比较器）当 TL43xx 的阴极/输出电压或电流未以任何形式馈送回基准/输入引脚时，该器件便是处于开环状态。在向该器件施加合适的阴极电流 (Ika) 后，TL43xx 将会具有图 9-1 中所示的特性。这种配置具有如此高的增益，因此 TL43xx 通常用作比较器。TL43xx 具有集成的内部基准，因此，当用户想要监控单个信号的某个电平时，该器件便成为了他们的理想选择。 9.4.2 闭环当 TL43xx 的阴极/输出电压或电流以任何形式馈送回基准/输入引脚时，该器件便是处于闭环状态。涉及 TL43xx 的多数应用都是采用这种模式，从而实现调节至固定电压或电流的目的。反馈使得该器件能够作为误差放大器，计算输出电压的一部分，并对其进行调整以保持期望的调节。实现该目标的途径是：将输出电压以某种方式关联至基准引脚，从而使其等于内部基准电压（这可以通过电阻反馈或直接反馈来实现）。 22 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TL431 TL432 TL431, TL432 www.ti.com.cn ZHCSJ14Q – AUGUST 2004 – REVISED JULY 2022 10 应用和实现备注以下应用部分中的信息不属于 TI 元件规范，TI 不担保其准确性和完整性。TI 的客户应负责确定各元件是否适用于其应用。客户应验证并测试其设计实现，以确保系统功能正常。 10.1 应用信息该器件具有很多应用和设置，因此许多情况都无法在本数据表中进行详述。链接的应用手册可帮助设计人员在使用此器件时制定理想的选择。应用手册了解 TL431/TL432 数据表中的稳定性边界条件图 (SLVA482) 可帮助用户更深入地了解此类器件的稳定性特征和选择合适的负载电容器。应用手册在可调并联稳压器上设置并联电压 (SLVA445) 可协助设计人员设置并联电压，以达到该设备的理想精度。 10.2 典型应用 10.2.1 具有集成基准的比较器 Vsup Rsup Vout CATHODE R1 VIN RIN REF VL + R2 2.5V ANODE 图 10-1. 比较器应用原理图 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TL431 TL432 23 TL431, TL432 www.ti.com.cn ZHCSJ14Q – AUGUST 2004 – REVISED JULY 2022 10.2.1.1 设计要求本设计示例使用表 10-1 中所列的参数作为输入参数。表 10-1. 设计参数设计参数示例值输入电压范围 0V 至 5V 输入电阻 10kΩ 电源电压 24V 阴极电流 (Ik) 5mA 输出电压电平 ~2V – VSUP 逻辑输入阈值 VIH/VIL VL 10.2.1.2 详细设计过程在将 TL431 用作具有基准电压的比较器时，需要确定以下参数： • • • • 输入电压范围基准电压精度输出/逻辑输入高低电平阈值电流源电阻 10.2.1.2.1 基本操作在图 10-1 所示的配置中，TL431 将作为比较器，将 VREF 引脚电压与内部虚拟基准电压进行比较。在获得合适的阴极电流 (IK) 时，TL43xx 将具有足够的开环增益来提供快速响应。图 10-2 展示了这种情况，其中 RSUP=10kΩ (IKA=500µA) 的情况要比 RSUP=1kΩ (IKA=5mA) 时的响应速度慢得多。TL43xx 的最大工作电流 (IMIN) 为 1mA，因此低于该电流值运行可能会导致增益降低，从而使响应速度变慢。 10.2.1.2.1.1 过驱未为基准引脚提供足够的过驱动电压也可能会导致响应较慢或不准确。该电压高于内部虚拟基准电压。内部虚拟基准电压将在 2.5V ± 0.5%、1.0% 或 1.5%（具体取决于所使用的版本）范围内。所提供的过驱动电压越高， TL431 的响应速度就会越快。对于 TL431 用作比较器的应用，最好是将跳闸点设置为高于正预期误差（对于 A 版本来说是 +1.0%）为了实现快速响应，将跳闸点设置为高于内部 VREF 的 10% 就足够了。为了实现从 Vin 到基准引脚的最低压降或电压差，建议使用阻值低于 10kΩ 的输入电阻器来提供 Iref。 24 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TL431 TL432 TL431, TL432 www.ti.com.cn ZHCSJ14Q – AUGUST 2004 – REVISED JULY 2022 10.2.1.2.2 输出电压和逻辑输入电平为了使 TL431 能够正常地用作比较器，逻辑输出必须可供逻辑接收器件读取。这是通过了解输入高低电平阈值电压电平（通常表示为 VIH 和 VIL）来实现的。如图 10-2 中所示，TL431 在开环/比较器模式下的输出低电平电压大约为 2V，这通常已经足够支持 5V 的供应逻辑。但却无法支持 3.3V 和 1.8V 的供应逻辑。为了适应这种情况，可以在输出端连接一个电阻分压器，以将输出电压衰减到方便低电压逻辑接收器件读取的电压。 TL431 的输出高电压等于 VSUP，因为 TL431 处于集电极开路状态。如果 VSUP 远高于接收逻辑的最大输入电压容差，则必须对输出进行衰减，以确保输出逻辑的稳定性。当在输出端上使用电阻分压器时，务必要使电阻分压器（图 10-1 中的 R1 和 R2）的和远高于 RSUP，以免影响 TL431 在关闭时将电压拉近至 VSUP 的能力。 10.2.1.2.2.1 输入电阻在此应用中，TL431 需要具有输入电阻，以确保此器件所提供的所需基准拉电流 (IREF) 在开启期间保持在合适的运行区域内。基准引脚上的实际电压为 VREF=VIN-IREF*RIN。IREF 可能会高达 4µA，因此建议使用足够小的电阻，这将能够减小 IREF 通过 VIN 造成的误差。 10.2.1.3 应用曲线 5.5 5 4.5 4 Voltage (V) 3.5 3 2.5 2 1.5 1 Vin Vka(Rsup=10k:) Vka(Rsup=1k:) 0.5 0 -0.5 -0.001 -0.0006 -0.0002 0.0002 Time (s) 0.0006 0.001 D001 图 10-2. 各种阴极电流情况下的输出响应 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TL431 TL432 25 TL431, TL432 www.ti.com.cn ZHCSJ14Q – AUGUST 2004 – REVISED JULY 2022 10.2.2 并联稳压器/基准 VSUP RSUP VO = ( 1 + R1 0.1% CATHODE REF Vr ef R1 ) Vref R2 R2 0.1% TL431 ANODE CL 图 10-3. 并联稳压器原理图 10.2.2.1 设计要求本设计示例使用表 10-1 中所列的参数作为输入参数。表 10-2. 设计参数设计参数示例值基准初始精度 1.0 % 电源电压 24V 阴极电流 (Ik) 5mA 输出电压电平 2.5V - 36V 负载电容 100nF 反馈电阻器值和精度（R1 和 R2） 10kΩ 10.2.2.2 详细设计过程在将 TL431 用作并联稳压器时，需要确定以下参数： • • • • • • 输入电压范围温度范围总精度阴极电流基准初始精度输出电容 10.2.2.2.1 可编程输出/阴极电压为了将阴极电压编程至调节电压，必须对阴极和阳极引脚之间的电阻桥进行分流，即将中点处连接至基准引脚。您可以在图 10-3 中看到该电路，其中电阻桥由 R1 和 R2 组成。您可以使用图 10-3 中所示的公式计算出并联稳压器配置中的阴极/输出电压近似值。您还可以通过考虑阴极电流，更精确地确定阴极电压： Vo=(1+R1/R2)*VREF-IREF*R1 为了使该公式有效，TL43xx 必须完全偏置，以便它具有足够的开环增益来减小任何增益误差。这可以通过满足节 7.5 中指示的 Imin 规格来实现。 26 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TL431 TL432 TL431, TL432 www.ti.com.cn ZHCSJ14Q – AUGUST 2004 – REVISED JULY 2022 10.2.2.2.2 总精度当对高于单位增益 (VKA=VREF) 的输出进行编程时，除 VREF 之外，TL43xx 还容易受其他误差的影响，这些误差可能会影响整体精度。这些误差包括： • • • • R1 和 R2 的精度 VI(dev) - 基准电压随温度的变化 ΔVREF / ΔVKA - 基准电压变化与阴极电压变化之比 |zKA| - 动态阻抗，通过阴极电流导致阴极电压的变化将所有这些变量考虑在内，便可确定最坏情况下的阴极电压。应用手册在可调并联稳压器上设置并联电压 (SLVA445) 可协助设计人员设置并联电压，以达到该设备的理想精度。 10.2.2.2.3 稳定性虽然 TL43xx 在没有容性负载的情况下是稳定的，但是接收并联稳压器输出电压的器件可能会产生 TL43xx 稳定区域（如图 7-16 和图 7-18 中所示）内的容性负载。此外，设计人员可以使用容性负载来改进瞬态响应或进行电源去耦。在阴极和阳极之间使用额外电容时，请参阅图 7-16 和图 7-18。此外，应用手册了解 TL431/TL432 数据表中的稳定性边界条件图 (SLVA482) 可帮助用户更深入地了解此类器件的稳定性特征和选择合适的负载电容器。 10.2.2.2.4 启动时间如图 10-4 中所示，TL43xx 具有高达约 2V 的快速响应，然后会缓慢充电至其编程值。这得益于 TL43xx 为了达到稳定性标准而配备的补偿电容（如图 9-2 所示）。尽管存在二次延迟，TL43xx 的快速响应仍然能够满足许多钳位应用的需要。 10.2.2.3 应用曲线 27 24 21 Voltage (V) 18 Vsup Vka=Vref R1=10k: & R2=10k: R1=38k: & R2=10k: 15 12 9 6 3 0 -3 -6 -5E-6 -3E-6 -1E-6 1E-6 Time (s) 3E-6 5E-6 D001 图 10-4. TL43xx 启动响应 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TL431 TL432 27 TL431, TL432 www.ti.com.cn ZHCSJ14Q – AUGUST 2004 – REVISED JULY 2022 10.3 系统示例 VI(BATT) R (see Note A) 2N222 2N222 30 Ω 4.7 kΩ 0.01 µF TL431 VO R1 0.1% R2 0.1% A. R1 ö æ VO = ç 1 + ÷ Vref R2 ø è R 应在最低 V(BATT) 情况下向 TL431 提供 ≥1mA 的阴极电流。图 10-5. 精密大电流串联稳压器 VI(BATT) IN uA7805 OUT Common VO R1 TL431 ( ( VO = 1 + R1 Vref R2 Minimum V V + 5V O = ref R2 图 10-6. 三端固定稳压器的输出控制 VO VI(BATT) ( ( VO = 1 + R1 Vref R2 R1 TL431 R2 图 10-7. 大电流并联稳压器 VI(BATT) VO R1 TL431 R2 A. C (see Note A) 请参阅图 7-16 和图 7-18 中的稳定性边界条件，以确定 C 的允许值。图 10-8. Crowbar 电路 28 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TL431 TL432 TL431, TL432 www.ti.com.cn ZHCSJ14Q – AUGUST 2004 – REVISED JULY 2022 IN VI(BATT) LM317 8.2 kΩ OUT VO ≈5 V, 1.5 A Adjust 243 Ω 0.1% TL431 243 Ω 0.1% 图 10-9. 精密 5V 1.5A 稳压器 VI(BATT) VO ≈5 V Rb (see Note A) 27.4 kΩ 0.1% TL431 27.4 kΩ 0.1% A. Rb 应向 TL431 提供 ≥1mA 的阴极电流。图 10-10. 高效 5V 精密稳压器 12 V VCC 6.8 kΩ 5V 10 kΩ − 10 kΩ 0.1% TL431 10 kΩ 0.1% + X Not Used TL598 Feedback 图 10-11. 具有基准电压的 PWM 转换器 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TL431 TL432 29 TL431, TL432 www.ti.com.cn ZHCSJ14Q – AUGUST 2004 – REVISED JULY 2022 R3 (see Note A) VI(BATT) R4 (see Note A) R1B R1A Low Limit = 1 + R1B V ref R2B TL431 High Limit = 1 + R1A V ref R2A R2A A. LED on When Low Limit < VI(BATT) < High Limit R2B 选择 R3 和 R4，以在可用的 VI(BATT) 条件下提供所需的 LED 强度并为 TL431 提供 ≥1mA 的阴极电流。图 10-12. 电压监控器 650 Ω 12 V R 2 kΩ TL431 Off æ 12 V Delay = R × C × In çç è 12 V – Vref C On ö ÷÷ ø 图 10-13. 延迟计时器 RCL 0.1% VI(BATT) IO Iout = R1 R1 = TL431 V ref + IKA R CL V I(BATT) I O h FE + IKA 图 10-14. 精密限流器 VI(BATT) IO IO = TL431 Vref RS RS 0.1% 图 10-15. 精密恒定电流吸收器 30 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TL431 TL432 TL431, TL432 www.ti.com.cn ZHCSJ14Q – AUGUST 2004 – REVISED JULY 2022 11 电源相关建议当使用 TL43xx 作为线性稳压器来为负载供电时，设计人员通常会在输出/阴极引脚上使用旁路电容。这样做时，请确保电容符合图 7-16 和图 7-18 中所示的稳定性标准。为了避免超出最大阴极电流，请确保电源电压符合电流要求的限制。另外，请务必限制流入基准引脚的电流，以免其超过绝对最大额定值。对于分流高电流的应用，请注意阴极和阳极迹线的长度，从而调整迹线宽度以获得适当的电流密度。 12 布局 12.1 布局指南旁路电容器应尽可能靠近该部件。载流迹线需要具有适合其所承载的电流量的宽度；对于 TL43xx，这些电流很低。 12.2 布局示例 TL432 - DBZ (TOP VIEW) Rref Vin REF 1 Rsup Vsup ANODE 3 CATHODE 2 GND CL GND 图 12-1. DBZ 布局示例 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TL431 TL432 31 TL431, TL432 www.ti.com.cn ZHCSJ14Q – AUGUST 2004 – REVISED JULY 2022 13 器件和文档支持 13.1 器件命名规则 TI 通过分配前缀和后缀来区分 TL43x 系列的所有组合。环保计划标识符是曾用于区分无铅和绿色环保器件的旧标识符。更多详细信息和可以订购的组合请参阅机械、封装和可订购信息中的“封装选项附录”。 TL431 X X XXX X XX Initial Accuracy Product 1: TL431 2: TL432* *(Cathode and REF pins are switched) Operating Free-Air Temperature B: 0.5% A: 1% (Blank): 2% C: 0°C to 70°C I: -40°C to 85°C Q: -40°C to 125°C Package Type LP: TO-92 LPM: TO-92 (Formed Lead) DCK: SC-70 D: SOIC P: PDIP PK: SOT-89 PS: SO DBV: SOT-23-5 DBZ: SOT-23-3 PW: TSSOP Package Quantity Eco Plan G3: Legacy Designator R: Tape & Reel T: Small Tape & Reel G4: Legacy Designator E3: Legacy Designator E4: Legacy Designator 13.2 相关链接下表列出了快速访问链接。类别包括技术文档、支持和社区资源、工具和软件，以及申请样片或购买产品的快速链接。表 13-1. 相关链接器件产品文件夹样片与购买技术文档工具和软件支持和社区 TL431 点击此处点击此处点击此处点击此处点击此处 TL432 点击此处点击此处点击此处点击此处点击此处 13.3 接收文档更新通知要接收文档更新通知，请导航至 ti.com 上的器件产品文件夹。点击订阅更新进行注册，即可每周接收产品信息更改摘要。有关更改的详细信息，请查看任何已修订文档中包含的修订历史记录。 13.4 支持资源 TI E2E™ 支持论坛是工程师的重要参考资料，可直接从专家获得快速、经过验证的解答和设计帮助。搜索现有解答或提出自己的问题可获得所需的快速设计帮助。链接的内容由各个贡献者“按原样”提供。这些内容并不构成 TI 技术规范，并且不一定反映 TI 的观点；请参阅 TI 的《使用条款》。 13.5 商标 TI E2E™ is a trademark of Texas Instruments. 所有商标均为其各自所有者的财产。 13.6 Electrostatic Discharge Caution This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. 32 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TL431 TL432 TL431, TL432 www.ti.com.cn ZHCSJ14Q – AUGUST 2004 – REVISED JULY 2022 13.7 术语表 TI 术语表本术语表列出并解释了术语、首字母缩略词和定义。 14 机械、封装和可订购信息以下页面包含机械、封装和可订购信息。这些信息是指定器件可用的最新数据。数据如有变更，恕不另行通知，且不会对此文档进行修订。如需获取此数据表的浏览器版本，请查阅左侧的导航栏。 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TL431 TL432 33 PACKAGE OPTION ADDENDUM www.ti.com 14-Feb-2023 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan (2) Lead finish/ Ball material MSL Peak Temp Op Temp (°C) Device Marking (3) Samples (4/5) (6) TL431ACD ACTIVE SOIC D 8 75 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 431AC Samples TL431ACDBVR ACTIVE SOT-23 DBV 5 3000 RoHS & Green NIPDAU | SN Level-1-260C-UNLIM 0 to 70 (TACG, TACJ, TACS) Samples TL431ACDBVRE4 ACTIVE SOT-23 DBV 5 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 TACG Samples TL431ACDBVRG4 ACTIVE SOT-23 DBV 5 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 TACG Samples TL431ACDBVT ACTIVE SOT-23 DBV 5 250 RoHS & Green NIPDAU | SN Level-1-260C-UNLIM 0 to 70 (TACG, TACJ, TACU) Samples TL431ACDBZR ACTIVE SOT-23 DBZ 3 3000 RoHS & Green NIPDAU | SN Level-1-260C-UNLIM 0 to 70 (TAC3, TACG, TACS, TACU) Samples TL431ACDBZRG4 ACTIVE SOT-23 DBZ 3 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 TAC3 Samples TL431ACDBZT ACTIVE SOT-23 DBZ 3 250 RoHS & Green NIPDAU | SN Level-1-260C-UNLIM 0 to 70 (TAC3, TACG, TACS, TACU) Samples TL431ACDBZTG4 ACTIVE SOT-23 DBZ 3 250 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 TAC3 Samples TL431ACDCKR ACTIVE SC70 DCK 6 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 (T4S, T4U) Samples TL431ACDG4 ACTIVE SOIC D 8 75 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 431AC Samples TL431ACDR ACTIVE SOIC D 8 2500 RoHS & Green NIPDAU | SN Level-1-260C-UNLIM 0 to 70 431AC Samples TL431ACDRE4 ACTIVE SOIC D 8 2500 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 431AC Samples TL431ACDRG4 ACTIVE SOIC D 8 2500 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 431AC Samples TL431ACLP ACTIVE TO-92 LP 3 1000 RoHS & Green SN N / A for Pkg Type 0 to 70 TL431AC Samples TL431ACLPE3 ACTIVE TO-92 LP 3 1000 RoHS & Green SN N / A for Pkg Type 0 to 70 TL431AC Samples TL431ACLPM ACTIVE TO-92 LP 3 2000 RoHS & Green SN N / A for Pkg Type 0 to 70 TL431AC Samples TL431ACLPME3 ACTIVE TO-92 LP 3 2000 RoHS & Green SN N / A for Pkg Type 0 to 70 TL431AC Samples TL431ACLPR ACTIVE TO-92 LP 3 2000 RoHS & Green SN N / A for Pkg Type 0 to 70 TL431AC Samples Addendum-Page 1 PACKAGE OPTION ADDENDUM www.ti.com 14-Feb-2023 Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan (2) Lead finish/ Ball material 2000 RoHS & Green SN MSL Peak Temp Op Temp (°C) Device Marking (3) Samples (4/5) (6) TL431ACLPRE3 ACTIVE TO-92 LP 3 N / A for Pkg Type 0 to 70 TL431AC Samples TL431ACP LIFEBUY PDIP P 8 50 RoHS & Green NIPDAU N / A for Pkg Type 0 to 70 TL431ACP TL431ACPK ACTIVE SOT-89 PK 3 1000 RoHS & Green SN Level-2-260C-1 YEAR 0 to 70 4A Samples TL431ACPKG3 ACTIVE SOT-89 PK 3 1000 RoHS & Green SN Level-2-260C-1 YEAR 0 to 70 4A Samples TL431ACPS LIFEBUY SO PS 8 80 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 T431A TL431ACPSR LIFEBUY SO PS 8 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 T431A TL431ACPW LIFEBUY TSSOP PW 8 150 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 T431A TL431ACPWR LIFEBUY TSSOP PW 8 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 T431A TL431AID ACTIVE SOIC D 8 75 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 431AI Samples TL431AIDBVR ACTIVE SOT-23 DBV 5 3000 RoHS & Green NIPDAU | SN Level-1-260C-UNLIM -40 to 85 (TAIG, TAIJ, TAIS) Samples TL431AIDBVRE4 ACTIVE SOT-23 DBV 5 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 TAIG Samples TL431AIDBVRG4 ACTIVE SOT-23 DBV 5 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 TAIG Samples TL431AIDBVT ACTIVE SOT-23 DBV 5 250 RoHS & Green NIPDAU | SN Level-1-260C-UNLIM -40 to 85 (TAIG, TAIJ, TAIU) Samples TL431AIDBVTG4 ACTIVE SOT-23 DBV 5 250 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 TAIG Samples TL431AIDBZR ACTIVE SOT-23 DBZ 3 3000 RoHS & Green NIPDAU | SN Level-1-260C-UNLIM -40 to 85 (T3AG, TAI3, TAIS, TAIU) Samples TL431AIDBZRG4 ACTIVE SOT-23 DBZ 3 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 TAI3 Samples TL431AIDBZT ACTIVE SOT-23 DBZ 3 250 RoHS & Green NIPDAU | SN Level-1-260C-UNLIM -40 to 85 (T3AG, TAI3, TAIS, TAIU) Samples TL431AIDBZTG4 ACTIVE SOT-23 DBZ 3 250 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 TAI3 Samples TL431AIDCKR ACTIVE SC70 DCK 6 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 T5U Samples TL431AIDCKRE4 ACTIVE SC70 DCK 6 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 T5U Samples TL431AIDCKT ACTIVE SC70 DCK 6 250 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 T5U Samples TL431AIDG4 ACTIVE SOIC D 8 75 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 431AI Samples Addendum-Page 2 PACKAGE OPTION ADDENDUM www.ti.com 14-Feb-2023 Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan (2) Lead finish/ Ball material MSL Peak Temp Op Temp (°C) Device Marking (3) Samples (4/5) (6) TL431AIDR ACTIVE SOIC D 8 2500 RoHS & Green NIPDAU | SN Level-1-260C-UNLIM -40 to 85 431AI Samples TL431AIDRG4 ACTIVE SOIC D 8 2500 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 431AI Samples TL431AILP ACTIVE TO-92 LP 3 1000 RoHS & Green SN N / A for Pkg Type -40 to 85 TL431AI Samples TL431AILPE3 ACTIVE TO-92 LP 3 1000 RoHS & Green SN N / A for Pkg Type -40 to 85 TL431AI Samples TL431AILPM ACTIVE TO-92 LP 3 2000 RoHS & Green SN N / A for Pkg Type -40 to 85 TL431AI Samples TL431AILPME3 ACTIVE TO-92 LP 3 2000 RoHS & Green SN N / A for Pkg Type -40 to 85 TL431AI Samples TL431AILPR ACTIVE TO-92 LP 3 2000 RoHS & Green SN N / A for Pkg Type -40 to 85 TL431AI Samples TL431AILPRE3 ACTIVE TO-92 LP 3 2000 RoHS & Green SN N / A for Pkg Type -40 to 85 TL431AI Samples TL431AIP LIFEBUY PDIP P 8 50 RoHS & Green NIPDAU N / A for Pkg Type -40 to 85 TL431AIP TL431AIPE4 LIFEBUY PDIP P 8 50 RoHS & Green NIPDAU N / A for Pkg Type -40 to 85 TL431AIP TL431AIPK ACTIVE SOT-89 PK 3 1000 RoHS & Green SN Level-2-260C-1 YEAR -40 to 85 4B Samples TL431AIPKG3 ACTIVE SOT-89 PK 3 1000 RoHS & Green SN Level-2-260C-1 YEAR -40 to 85 4B Samples TL431AQDBVR ACTIVE SOT-23 DBV 5 3000 RoHS & Green NIPDAU | SN Level-1-260C-UNLIM -40 to 125 (TAQG, TAQJ, TAQU) Samples TL431AQDBVT ACTIVE SOT-23 DBV 5 250 RoHS & Green NIPDAU | SN Level-1-260C-UNLIM -40 to 125 (TAQG, TAQJ, TAQU) Samples TL431AQDBZR ACTIVE SOT-23 DBZ 3 3000 RoHS & Green NIPDAUAG | SN Level-1-260C-UNLIM -40 to 125 (TAQ3, TAQG, TAQS, TAQU) Samples TL431AQDBZRG4 ACTIVE SOT-23 DBZ 3 3000 RoHS & Green NIPDAUAG Level-1-260C-UNLIM -40 to 125 TAQS Samples TL431AQDBZT ACTIVE SOT-23 DBZ 3 250 RoHS & Green NIPDAUAG | SN Level-1-260C-UNLIM -40 to 125 (TAQG, TAQS, TAQU) Samples TL431AQDBZTG4 ACTIVE SOT-23 DBZ 3 250 RoHS & Green NIPDAUAG Level-1-260C-UNLIM -40 to 125 TAQS Samples TL431AQDCKR ACTIVE SC70 DCK 6 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 T7U Samples TL431AQDCKT ACTIVE SC70 DCK 6 250 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 T7U Samples TL431AQPK ACTIVE SOT-89 PK 3 1000 RoHS & Green SN Level-2-260C-1 YEAR -40 to 125 4D Samples Addendum-Page 3 PACKAGE OPTION ADDENDUM www.ti.com 14-Feb-2023 Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan (2) Lead finish/ Ball material MSL Peak Temp Op Temp (°C) Device Marking (3) Samples (4/5) (6) TL431AQPKG3 ACTIVE SOT-89 PK 3 1000 RoHS & Green SN Level-2-260C-1 YEAR -40 to 125 4D Samples TL431BCD ACTIVE SOIC D 8 75 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 T431B Samples TL431BCDBVR ACTIVE SOT-23 DBV 5 3000 RoHS & Green NIPDAU | SN Level-1-260C-UNLIM 0 to 70 (T3GG, T3GJ, T3GU) Samples TL431BCDBVT ACTIVE SOT-23 DBV 5 250 RoHS & Green NIPDAU | SN Level-1-260C-UNLIM 0 to 70 (T3GG, T3GJ, T3GU) Samples TL431BCDBVTG4 ACTIVE SOT-23 DBV 5 250 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 T3GG Samples TL431BCDBZR ACTIVE SOT-23 DBZ 3 3000 RoHS & Green NIPDAU | SN Level-1-260C-UNLIM 0 to 70 (T3G3, T3GG, T3GS, T3GU) Samples TL431BCDBZRG4 ACTIVE SOT-23 DBZ 3 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 T3G3 Samples TL431BCDBZT ACTIVE SOT-23 DBZ 3 250 RoHS & Green NIPDAU | SN Level-1-260C-UNLIM 0 to 70 (T3G3, T3GG, T3GS, T3GU) Samples TL431BCDBZTG4 ACTIVE SOT-23 DBZ 3 250 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 T3G3 Samples TL431BCDCKR ACTIVE SC70 DCK 6 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 T2U Samples TL431BCDCKT ACTIVE SC70 DCK 6 250 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 T2U Samples TL431BCDE4 ACTIVE SOIC D 8 75 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 T431B Samples TL431BCDR ACTIVE SOIC D 8 2500 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 T431B Samples TL431BCLP ACTIVE TO-92 LP 3 1000 RoHS & Green SN N / A for Pkg Type 0 to 70 T431B Samples TL431BCLPE3 ACTIVE TO-92 LP 3 1000 RoHS & Green SN N / A for Pkg Type 0 to 70 T431B Samples TL431BCLPR ACTIVE TO-92 LP 3 2000 RoHS & Green SN N / A for Pkg Type 0 to 70 T431B Samples TL431BCP LIFEBUY PDIP P 8 50 RoHS & Green NIPDAU N / A for Pkg Type 0 to 70 TL431BCP TL431BCPK ACTIVE SOT-89 PK 3 1000 RoHS & Green SN Level-2-260C-1 YEAR 0 to 70 4C Samples TL431BCPKG3 ACTIVE SOT-89 PK 3 1000 RoHS & Green SN Level-2-260C-1 YEAR 0 to 70 4C Samples TL431BCPSR LIFEBUY SO PS 8 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 T431B TL431BCPWR LIFEBUY TSSOP PW 8 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 T431B Addendum-Page 4 PACKAGE OPTION ADDENDUM www.ti.com 14-Feb-2023 Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan (2) Lead finish/ Ball material MSL Peak Temp Op Temp (°C) Device Marking (3) Samples (4/5) (6) TL431BID ACTIVE SOIC D 8 75 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 Z431B Samples TL431BIDBVR ACTIVE SOT-23 DBV 5 3000 RoHS & Green NIPDAU | SN Level-1-260C-UNLIM -40 to 85 (T3FG, T3FJ, T3FU) Samples TL431BIDBVT ACTIVE SOT-23 DBV 5 250 RoHS & Green NIPDAU | SN Level-1-260C-UNLIM -40 to 85 (T3FG, T3FJ, T3FU) Samples TL431BIDBVTG4 ACTIVE SOT-23 DBV 5 250 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 T3FG Samples TL431BIDBZR ACTIVE SOT-23 DBZ 3 3000 RoHS & Green NIPDAU | SN Level-1-260C-UNLIM -40 to 85 (T3F3, T3FG, T3FS, T3FU) Samples TL431BIDBZRG4 ACTIVE SOT-23 DBZ 3 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 T3F3 Samples TL431BIDBZT ACTIVE SOT-23 DBZ 3 250 RoHS & Green NIPDAU | SN Level-1-260C-UNLIM -40 to 85 (T3F3, T3FG, T3FS, T3FU) Samples TL431BIDBZTG4 ACTIVE SOT-23 DBZ 3 250 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 T3F3 Samples TL431BIDCKR ACTIVE SC70 DCK 6 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 T3U Samples TL431BIDCKT ACTIVE SC70 DCK 6 250 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 T3U Samples TL431BIDE4 ACTIVE SOIC D 8 75 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 Z431B Samples TL431BIDG4 ACTIVE SOIC D 8 75 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 Z431B Samples TL431BIDR ACTIVE SOIC D 8 2500 RoHS & Green NIPDAU | SN Level-1-260C-UNLIM -40 to 85 Z431B Samples TL431BIDRE4 ACTIVE SOIC D 8 2500 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 Z431B Samples TL431BIDRG4 ACTIVE SOIC D 8 2500 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 Z431B Samples TL431BILP ACTIVE TO-92 LP 3 1000 RoHS & Green SN N / A for Pkg Type -40 to 85 Z431B Samples TL431BILPE3 ACTIVE TO-92 LP 3 1000 RoHS & Green SN N / A for Pkg Type -40 to 85 Z431B Samples TL431BILPR ACTIVE TO-92 LP 3 2000 RoHS & Green SN N / A for Pkg Type -40 to 85 Z431B Samples TL431BILPRE3 ACTIVE TO-92 LP 3 2000 RoHS & Green SN N / A for Pkg Type -40 to 85 Z431B Samples TL431BIP LIFEBUY PDIP P 8 50 RoHS & Green NIPDAU N / A for Pkg Type -40 to 85 TL431BIP Addendum-Page 5 PACKAGE OPTION ADDENDUM www.ti.com 14-Feb-2023 Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan (2) Lead finish/ Ball material MSL Peak Temp Op Temp (°C) Device Marking (3) Samples (4/5) (6) TL431BIPK ACTIVE SOT-89 PK 3 1000 RoHS & Green SN Level-2-260C-1 YEAR -40 to 85 4I Samples TL431BIPKG3 ACTIVE SOT-89 PK 3 1000 RoHS & Green SN Level-2-260C-1 YEAR -40 to 85 4I Samples TL431BQD ACTIVE SOIC D 8 75 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 T431BQ Samples TL431BQDBVR ACTIVE SOT-23 DBV 5 3000 RoHS & Green NIPDAU | SN Level-1-260C-UNLIM -40 to 125 (T3HJ, T3HU) Samples TL431BQDBVRG4 ACTIVE SOT-23 DBV 5 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 (T3HJ, T3HU) Samples TL431BQDBVT ACTIVE SOT-23 DBV 5 250 RoHS & Green NIPDAU | SN Level-1-260C-UNLIM -40 to 125 (T3HJ, T3HU) Samples TL431BQDBZR ACTIVE SOT-23 DBZ 3 3000 RoHS & Green NIPDAU | SN | NIPDAUAG Level-1-260C-UNLIM -40 to 125 (T3H3, T3HG, T3HS, T3HU) Samples TL431BQDBZRG4 ACTIVE SOT-23 DBZ 3 3000 RoHS & Green NIPDAUAG Level-1-260C-UNLIM -40 to 125 T3HS Samples TL431BQDBZT ACTIVE SOT-23 DBZ 3 250 RoHS & Green NIPDAUAG | SN Level-1-260C-UNLIM -40 to 125 (T3HG, T3HS, T3HU) Samples TL431BQDBZTG4 ACTIVE SOT-23 DBZ 3 250 RoHS & Green NIPDAUAG Level-1-260C-UNLIM -40 to 125 T3HS Samples TL431BQDCKR ACTIVE SC70 DCK 6 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 T8U Samples TL431BQDCKT ACTIVE SC70 DCK 6 250 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 T8U Samples TL431BQDE4 ACTIVE SOIC D 8 75 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 T431BQ Samples TL431BQDR ACTIVE SOIC D 8 2500 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 T431BQ Samples TL431BQDRG4 ACTIVE SOIC D 8 2500 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 T431BQ Samples TL431BQLP ACTIVE TO-92 LP 3 1000 RoHS & Green SN N / A for Pkg Type -40 to 125 T431BQ Samples TL431BQLPM ACTIVE TO-92 LP 3 2000 RoHS & Green SN N / A for Pkg Type -40 to 125 T431BQ Samples TL431BQLPME3 ACTIVE TO-92 LP 3 2000 RoHS & Green SN N / A for Pkg Type -40 to 125 T431BQ Samples TL431BQLPR ACTIVE TO-92 LP 3 2000 RoHS & Green SN N / A for Pkg Type -40 to 125 T431BQ Samples TL431BQLPRE3 ACTIVE TO-92 LP 3 2000 RoHS & Green SN N / A for Pkg Type -40 to 125 T431BQ Samples TL431BQPK ACTIVE SOT-89 PK 3 1000 RoHS & Green SN Level-2-260C-1 YEAR -40 to 125 3H Samples Addendum-Page 6 PACKAGE OPTION ADDENDUM www.ti.com 14-Feb-2023 Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan (2) Lead finish/ Ball material MSL Peak Temp Op Temp (°C) Device Marking (3) Samples (4/5) (6) TL431BQPKG3 ACTIVE SOT-89 PK 3 1000 RoHS & Green SN Level-2-260C-1 YEAR -40 to 125 3H Samples TL431CD ACTIVE SOIC D 8 75 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 TL431C Samples TL431CDBVR ACTIVE SOT-23 DBV 5 3000 RoHS & Green NIPDAU | SN Level-1-260C-UNLIM 0 to 70 (T3CG, T3CJ, T3CS) Samples TL431CDBVT ACTIVE SOT-23 DBV 5 250 RoHS & Green NIPDAU | SN Level-1-260C-UNLIM 0 to 70 (T3CG, T3CJ, T3CS) Samples TL431CDBVTG4 ACTIVE SOT-23 DBV 5 250 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 T3CG Samples TL431CDBZR ACTIVE SOT-23 DBZ 3 3000 RoHS & Green NIPDAU | SN Level-1-260C-UNLIM 0 to 70 (T3C3, T3CG, T3CS, T3CU) Samples TL431CDBZRG4 ACTIVE SOT-23 DBZ 3 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 T3C3 Samples TL431CDBZT ACTIVE SOT-23 DBZ 3 250 RoHS & Green SN Level-1-260C-UNLIM 0 to 70 (T3CG, T3CS, T3CU) Samples TL431CDBZTG4 ACTIVE SOT-23 DBZ 3 250 RoHS & Green NIPDAUAG Level-1-260C-UNLIM 0 to 70 T3CS Samples TL431CDE4 ACTIVE SOIC D 8 75 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 TL431C Samples TL431CDG4 ACTIVE SOIC D 8 75 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 TL431C Samples TL431CDR ACTIVE SOIC D 8 2500 RoHS & Green NIPDAU | SN Level-1-260C-UNLIM 0 to 70 TL431C Samples TL431CDRG4 ACTIVE SOIC D 8 2500 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 TL431C Samples TL431CLP ACTIVE TO-92 LP 3 1000 RoHS & Green SN N / A for Pkg Type 0 to 70 TL431C Samples TL431CLPE3 ACTIVE TO-92 LP 3 1000 RoHS & Green SN N / A for Pkg Type 0 to 70 TL431C Samples TL431CLPM ACTIVE TO-92 LP 3 2000 RoHS & Green SN N / A for Pkg Type 0 to 70 TL431C Samples TL431CLPME3 ACTIVE TO-92 LP 3 2000 RoHS & Green SN N / A for Pkg Type 0 to 70 TL431C Samples TL431CLPR ACTIVE TO-92 LP 3 2000 RoHS & Green SN N / A for Pkg Type 0 to 70 TL431C Samples TL431CLPRE3 ACTIVE TO-92 LP 3 2000 RoHS & Green SN N / A for Pkg Type 0 to 70 TL431C Samples TL431CP LIFEBUY PDIP P 8 50 RoHS & Green NIPDAU N / A for Pkg Type 0 to 70 TL431CP TL431CP-J LIFEBUY PDIP P 8 50 RoHS & Green NIPDAU N / A for Pkg Type 0 to 70 TL431CP Addendum-Page 7 PACKAGE OPTION ADDENDUM www.ti.com 14-Feb-2023 Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan (2) Lead finish/ Ball material MSL Peak Temp Op Temp (°C) Device Marking (3) Samples (4/5) (6) TL431CPE4 LIFEBUY PDIP P 8 50 RoHS & Green NIPDAU N / A for Pkg Type 0 to 70 TL431CP TL431CPK ACTIVE SOT-89 PK 3 1000 RoHS & Green SN Level-2-260C-1 YEAR 0 to 70 43 Samples TL431CPKE6 ACTIVE SOT-89 PK 3 1000 RoHS & Non-Green SNBI Level-1-260C-UNLIM 0 to 70 43 Samples TL431CPKG3 ACTIVE SOT-89 PK 3 1000 RoHS & Green SN Level-2-260C-1 YEAR 0 to 70 43 Samples TL431CPS LIFEBUY SO PS 8 80 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 T431 TL431CPSR LIFEBUY SO PS 8 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 T431 TL431CPSRG4 LIFEBUY SO PS 8 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 T431 TL431CPWR LIFEBUY TSSOP PW 8 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 T431 TL431ID ACTIVE SOIC D 8 75 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 TL431I Samples TL431IDBVR ACTIVE SOT-23 DBV 5 3000 RoHS & Green NIPDAU | SN Level-1-260C-UNLIM -40 to 85 (T3IG, T3IJ, T3IS) Samples TL431IDBVRE4 ACTIVE SOT-23 DBV 5 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 T3IG Samples TL431IDBVRG4 ACTIVE SOT-23 DBV 5 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 T3IG Samples TL431IDBVT ACTIVE SOT-23 DBV 5 250 RoHS & Green NIPDAU | SN Level-1-260C-UNLIM -40 to 85 (T3IG, T3IJ, T3IU) Samples TL431IDBZR ACTIVE SOT-23 DBZ 3 3000 RoHS & Green NIPDAUAG | SN Level-1-260C-UNLIM -40 to 85 (T3I3, T3IG, T3IS, T3IU) Samples TL431IDBZRG4 ACTIVE SOT-23 DBZ 3 3000 RoHS & Green NIPDAUAG Level-1-260C-UNLIM -40 to 85 T3IS Samples TL431IDBZT ACTIVE SOT-23 DBZ 3 250 RoHS & Green NIPDAUAG | SN Level-1-260C-UNLIM -40 to 85 (T3IG, T3IS, T3IU) Samples TL431IDBZTG4 ACTIVE SOT-23 DBZ 3 250 RoHS & Green NIPDAUAG Level-1-260C-UNLIM -40 to 85 T3IS Samples TL431IDG4 ACTIVE SOIC D 8 75 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 TL431I Samples TL431IDR ACTIVE SOIC D 8 2500 RoHS & Green NIPDAU | SN Level-1-260C-UNLIM -40 to 85 TL431I Samples TL431IDRG4 ACTIVE SOIC D 8 2500 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 TL431I Samples TL431ILP ACTIVE TO-92 LP 3 1000 RoHS & Green SN N / A for Pkg Type -40 to 85 TL431I Samples TL431ILPE3 ACTIVE TO-92 LP 3 1000 RoHS & Green SN N / A for Pkg Type -40 to 85 TL431I Samples Addendum-Page 8 PACKAGE OPTION ADDENDUM www.ti.com 14-Feb-2023 Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan (2) Lead finish/ Ball material MSL Peak Temp Op Temp (°C) Device Marking (3) Samples (4/5) (6) TL431ILPR ACTIVE TO-92 LP 3 2000 RoHS & Green SN N / A for Pkg Type -40 to 85 TL431I Samples TL431ILPRE3 ACTIVE TO-92 LP 3 2000 RoHS & Green SN N / A for Pkg Type -40 to 85 TL431I Samples TL431IP LIFEBUY PDIP P 8 50 RoHS & Green NIPDAU N / A for Pkg Type -40 to 85 TL431IP TL431IPE4 LIFEBUY PDIP P 8 50 RoHS & Green NIPDAU N / A for Pkg Type -40 to 85 TL431IP TL431IPK ACTIVE SOT-89 PK 3 1000 RoHS & Green SN Level-2-260C-1 YEAR -40 to 85 3I Samples TL431IPKG3 ACTIVE SOT-89 PK 3 1000 RoHS & Green SN Level-2-260C-1 YEAR -40 to 85 3I Samples TL431QD ACTIVE SOIC D 8 75 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 T431Q Samples TL431QDBVR ACTIVE SOT-23 DBV 5 3000 RoHS & Green NIPDAU | SN Level-1-260C-UNLIM -40 to 125 (T3QG, T3QJ, T3QU) Samples TL431QDBVRG4 ACTIVE SOT-23 DBV 5 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 T3QG Samples TL431QDBVT ACTIVE SOT-23 DBV 5 250 RoHS & Green NIPDAU | SN Level-1-260C-UNLIM -40 to 125 (T3QG, T3QJ, T3QU) Samples TL431QDBZR ACTIVE SOT-23 DBZ 3 3000 RoHS & Green NIPDAUAG | SN Level-1-260C-UNLIM -40 to 125 (T3Q3, T3QG, T3QS, T3QU) Samples TL431QDBZRG4 ACTIVE SOT-23 DBZ 3 3000 RoHS & Green NIPDAUAG Level-1-260C-UNLIM -40 to 125 T3QS Samples TL431QDBZT ACTIVE SOT-23 DBZ 3 250 RoHS & Green NIPDAUAG | SN Level-1-260C-UNLIM -40 to 125 (T3QG, T3QS, T3QU) Samples TL431QDBZTG4 ACTIVE SOT-23 DBZ 3 250 RoHS & Green NIPDAUAG Level-1-260C-UNLIM -40 to 125 T3QS Samples TL431QDCKR ACTIVE SC70 DCK 6 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 T6U Samples TL431QDCKT ACTIVE SC70 DCK 6 250 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 T6U Samples TL431QDR ACTIVE SOIC D 8 2500 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 T431Q Samples TL431QPK ACTIVE SOT-89 PK 3 1000 RoHS & Green SN Level-2-260C-1 YEAR -40 to 125 3Q Samples TL431QPKG3 ACTIVE SOT-89 PK 3 1000 RoHS & Green SN Level-2-260C-1 YEAR -40 to 125 3Q Samples TL432ACDBVR ACTIVE SOT-23 DBV 5 3000 RoHS & Green NIPDAU | SN Level-1-260C-UNLIM 0 to 70 (T4BG, T4BJ, T4BU) Samples TL432ACDBZR ACTIVE SOT-23 DBZ 3 3000 RoHS & Green NIPDAUAG | SN Level-1-260C-UNLIM 0 to 70 (T4B3, T4BG, T4BS, Samples Addendum-Page 9 PACKAGE OPTION ADDENDUM www.ti.com 14-Feb-2023 Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan (2) Lead finish/ Ball material MSL Peak Temp Op Temp (°C) Device Marking (3) Samples (4/5) (6) T4BU) TL432ACDBZRG4 ACTIVE SOT-23 DBZ 3 3000 RoHS & Green NIPDAUAG Level-1-260C-UNLIM 0 to 70 T4BS Samples TL432ACDBZT ACTIVE SOT-23 DBZ 3 250 RoHS & Green NIPDAUAG | SN Level-1-260C-UNLIM 0 to 70 (T4BG, T4BS, T4BU) Samples TL432ACDBZTG4 ACTIVE SOT-23 DBZ 3 250 RoHS & Green NIPDAUAG Level-1-260C-UNLIM 0 to 70 T4BS Samples TL432AIDBVR ACTIVE SOT-23 DBV 5 3000 RoHS & Green NIPDAU | SN Level-1-260C-UNLIM -40 to 85 (T4AG, T4AJ, T4AU) Samples TL432AIDBZR ACTIVE SOT-23 DBZ 3 3000 RoHS & Green NIPDAU | SN Level-1-260C-UNLIM -40 to 85 (T4A3, T4AG, T4AS, T4AU) Samples TL432AIDBZRG4 ACTIVE SOT-23 DBZ 3 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 T4A3 Samples TL432AIDBZT ACTIVE SOT-23 DBZ 3 250 RoHS & Green NIPDAU | SN Level-1-260C-UNLIM -40 to 85 (T4A3, T4AG, T4AS, T4AU) Samples TL432AIDBZTG4 ACTIVE SOT-23 DBZ 3 250 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 T4A3 Samples TL432AIPK ACTIVE SOT-89 PK 3 1000 RoHS & Green SN Level-2-260C-1 YEAR -40 to 85 2E Samples TL432AQDBVR ACTIVE SOT-23 DBV 5 3000 RoHS & Green NIPDAU | SN Level-1-260C-UNLIM -40 to 125 (T4DJ, T4DU) Samples TL432AQDBVT ACTIVE SOT-23 DBV 5 250 RoHS & Green NIPDAU | SN Level-1-260C-UNLIM -40 to 125 (T4DJ, T4DU) Samples TL432AQDBZR ACTIVE SOT-23 DBZ 3 3000 RoHS & Green NIPDAUAG | SN Level-1-260C-UNLIM -40 to 125 (T4D3, T4DG, T4DS, T4DU) Samples TL432AQDBZRG4 ACTIVE SOT-23 DBZ 3 3000 RoHS & Green NIPDAUAG Level-1-260C-UNLIM -40 to 125 T4DS Samples TL432AQDBZT ACTIVE SOT-23 DBZ 3 250 RoHS & Green NIPDAUAG | SN Level-1-260C-UNLIM -40 to 125 (T4DG, T4DS, T4DU) Samples TL432AQDBZTG4 ACTIVE SOT-23 DBZ 3 250 RoHS & Green NIPDAUAG Level-1-260C-UNLIM -40 to 125 T4DS Samples TL432AQPK ACTIVE SOT-89 PK 3 1000 RoHS & Green SN Level-2-260C-1 YEAR -40 to 125 2F Samples TL432AQPKG3 ACTIVE SOT-89 PK 3 1000 RoHS & Green SN Level-2-260C-1 YEAR -40 to 125 2F Samples TL432BCDBVR ACTIVE SOT-23 DBV 5 3000 RoHS & Green NIPDAU | SN Level-1-260C-UNLIM 0 to 70 (TBCJ, TBCU) Samples TL432BCDBZR ACTIVE SOT-23 DBZ 3 3000 RoHS & Green NIPDAUAG | SN Level-1-260C-UNLIM 0 to 70 (TBCG, TBCS, TBCU) Samples Addendum-Page 10 PACKAGE OPTION ADDENDUM www.ti.com 14-Feb-2023 Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan (2) Lead finish/ Ball material MSL Peak Temp Op Temp (°C) Device Marking (3) Samples (4/5) (6) TL432BCDBZRG4 ACTIVE SOT-23 DBZ 3 3000 RoHS & Green NIPDAUAG Level-1-260C-UNLIM 0 to 70 TBCS Samples TL432BCDBZT ACTIVE SOT-23 DBZ 3 250 RoHS & Green SN Level-1-260C-UNLIM 0 to 70 (TBCG, TBCS, TBCU) Samples TL432BCDBZTG4 ACTIVE SOT-23 DBZ 3 250 RoHS & Green NIPDAUAG Level-1-260C-UNLIM 0 to 70 TBCS Samples TL432BCPK ACTIVE SOT-89 PK 3 1000 RoHS & Green SN Level-2-260C-1 YEAR 0 to 70 2G Samples TL432BIDBZR ACTIVE SOT-23 DBZ 3 3000 RoHS & Green NIPDAU | SN Level-1-260C-UNLIM -40 to 85 (T4F3, T4FG, T4FS, T4FU) Samples TL432BIDBZRG4 ACTIVE SOT-23 DBZ 3 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 T4F3 Samples TL432BIDBZT ACTIVE SOT-23 DBZ 3 250 RoHS & Green NIPDAU | SN Level-1-260C-UNLIM -40 to 85 (T4F3, T4FG, T4FS, T4FU) Samples TL432BIDBZTG4 ACTIVE SOT-23 DBZ 3 250 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 T4F3 Samples TL432BIPK ACTIVE SOT-89 PK 3 1000 RoHS & Green SN Level-2-260C-1 YEAR -40 to 85 2H Samples TL432BQDBZR ACTIVE SOT-23 DBZ 3 3000 RoHS & Green NIPDAU | NIPDAUAG Level-1-260C-UNLIM -40 to 125 (T4H3, T4HS, T4HU) Samples TL432BQDBZRG4 ACTIVE SOT-23 DBZ 3 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 (T4H3, T4HS, T4HU) Samples TL432BQPK ACTIVE SOT-89 PK 3 1000 RoHS & Green SN Level-2-260C-1 YEAR -40 to 125 2J Samples TL432CDBVR ACTIVE SOT-23 DBV 5 3000 RoHS & Green NIPDAU | SN Level-1-260C-UNLIM 0 to 70 (T4CG, T4CJ, T4CU) Samples TL432CDBZR ACTIVE SOT-23 DBZ 3 3000 RoHS & Green NIPDAUAG | SN Level-1-260C-UNLIM 0 to 70 (T4CG, T4CS, T4CU) Samples TL432CDBZRG4 ACTIVE SOT-23 DBZ 3 3000 RoHS & Green NIPDAUAG Level-1-260C-UNLIM 0 to 70 T4CS Samples TL432CPK ACTIVE SOT-89 PK 3 1000 RoHS & Green SN Level-2-260C-1 YEAR 0 to 70 2A Samples TL432IDBVR ACTIVE SOT-23 DBV 5 3000 RoHS & Green NIPDAU | SN Level-1-260C-UNLIM -40 to 85 (T4IG, T4IJ, T4IU) Samples TL432IDBZR ACTIVE SOT-23 DBZ 3 3000 RoHS & Green NIPDAUAG | SN Level-1-260C-UNLIM -40 to 85 (T4IG, T4IS, T4IU) Samples TL432IDBZRG4 ACTIVE SOT-23 DBZ 3 3000 RoHS & Green NIPDAUAG Level-1-260C-UNLIM -40 to 85 T4IS Samples Addendum-Page 11 PACKAGE OPTION ADDENDUM www.ti.com 14-Feb-2023 Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan (2) Lead finish/ Ball material MSL Peak Temp Op Temp (°C) Device Marking (3) Samples (4/5) (6) TL432IDBZT ACTIVE SOT-23 DBZ 3 250 RoHS & Green NIPDAUAG | SN Level-1-260C-UNLIM -40 to 85 (T4IG, T4IS, T4IU) Samples TL432IDBZTG4 ACTIVE SOT-23 DBZ 3 250 RoHS & Green NIPDAUAG Level-1-260C-UNLIM -40 to 85 T4IS Samples TL432IPK ACTIVE SOT-89 PK 3 1000 RoHS & Green SN Level-2-260C-1 YEAR -40 to 85 2B Samples TL432QDBZR ACTIVE SOT-23 DBZ 3 3000 RoHS & Green NIPDAUAG | SN Level-1-260C-UNLIM -40 to 125 (T4QG, T4QS, T4QU) Samples TL432QDBZRG4 ACTIVE SOT-23 DBZ 3 3000 RoHS & Green NIPDAUAG Level-1-260C-UNLIM -40 to 125 T4QS Samples TL432QPK ACTIVE SOT-89 PK 3 1000 RoHS & Green SN Level-2-260C-1 YEAR -40 to 125 2C Samples TL432QPKG3 ACTIVE SOT-89 PK 3 1000 RoHS & Green SN Level-2-260C-1 YEAR -40 to 125 2C Samples (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may reference these types of products as "Pb-Free". RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption. Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of

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