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TL431LI-Q1

現行

具有最佳化參考電流的車用可調整精密分流穩壓器

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產品規格表

TL431LI-Q1

現行
產品規格表 立即訂購

產品詳細資料

VO (V) 2.495 Initial accuracy (max) (%) 0.5, 1 VO adj (min) (V) 2.495 VO adj (max) (V) 36 Iz for regulation (min) (µA) 400 Reference voltage (V) adjustable Rating Automotive TI functional safety category Functional Safety-Capable Temp coeff (max) (ppm/°C) 63 Operating temperature range (°C) -40 to 150 Iout/Iz (max) (mA) 15
VO (V) 2.495 Initial accuracy (max) (%) 0.5, 1 VO adj (min) (V) 2.495 VO adj (max) (V) 36 Iz for regulation (min) (µA) 400 Reference voltage (V) adjustable Rating Automotive TI functional safety category Functional Safety-Capable Temp coeff (max) (ppm/°C) 63 Operating temperature range (°C) -40 to 150 Iout/Iz (max) (mA) 15
SOT-23 (DBZ) 3 6.9204 mm² 2.92 x 2.37
  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature
    • Device temperature grade 0: –40°C to +150°C ambient operating temperature
  • Reference voltage tolerance at 25°C
    • 0.5% (B grade)
    • 1% (A grade)
  • Minimum typical output voltage: 2.495 V
  • Adjustable output voltage: Vref to 36 V
  • 27 mV maximum temperature drift for grade 1
  • 34 mV maximum temperature drift for grade 0
  • 0.3-Ω typical output impedance
  • Sink-current capability
    • Imin = 0.6 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)
  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature
    • Device temperature grade 0: –40°C to +150°C ambient operating temperature
  • Reference voltage tolerance at 25°C
    • 0.5% (B grade)
    • 1% (A grade)
  • Minimum typical output voltage: 2.495 V
  • Adjustable output voltage: Vref to 36 V
  • 27 mV maximum temperature drift for grade 1
  • 34 mV maximum temperature drift for grade 0
  • 0.3-Ω typical output impedance
  • Sink-current capability
    • Imin = 0.6 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)

The TL431LI-Q1 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 2.495 V) and 36 V with two external resistors. The device has a typical output impedance of 0.3 Ω. Its active output circuitry provides a very sharp turn-on characteristic, making it an excellent replacement 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 industry standard TL431-Q1 with optimized Iref and IIdev performance. The lower Iref and IIdev values of the TL431LI-Q1 enable designers to achieve higher system accuracy and lower leakage current. The TL432LI-Q1 has exactly the same functionality and electrical specifications as the TL431LI-Q1, but has a different pinout for the DBZ package.

The TL431LI-Q1 is offered in two grades, with initial tolerances (at 25°C) of 0.5% and 1%, for the B and A grade, respectively. The TL431LI-Q1 is also available in two temperature grades: grade 1 (denoted by a ’Q’ in the part number), and grade 0 (denoted by a ’E’ in the part number), which represent maximum ambient operating temperatures of 125°C and 150°C respectively. The TL43xLI-Q1 is characterized for operation from –40°C to 125°C for grade 1, and –40°C to 150°C for grade 0, and its low output drift versus temperature ensures good stability over the entire temperature range.

The TL431LI-Q1 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 2.495 V) and 36 V with two external resistors. The device has a typical output impedance of 0.3 Ω. Its active output circuitry provides a very sharp turn-on characteristic, making it an excellent replacement 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 industry standard TL431-Q1 with optimized Iref and IIdev performance. The lower Iref and IIdev values of the TL431LI-Q1 enable designers to achieve higher system accuracy and lower leakage current. The TL432LI-Q1 has exactly the same functionality and electrical specifications as the TL431LI-Q1, but has a different pinout for the DBZ package.

The TL431LI-Q1 is offered in two grades, with initial tolerances (at 25°C) of 0.5% and 1%, for the B and A grade, respectively. The TL431LI-Q1 is also available in two temperature grades: grade 1 (denoted by a ’Q’ in the part number), and grade 0 (denoted by a ’E’ in the part number), which represent maximum ambient operating temperatures of 125°C and 150°C respectively. The TL43xLI-Q1 is characterized for operation from –40°C to 125°C for grade 1, and –40°C to 150°C for grade 0, and its low output drift versus temperature ensures good stability over the entire temperature range.
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類型 標題 日期
* Data sheet TL431LI-Q1 / TL432LI-Q1 Programmable Shunt Regulator With Optimized Reference Current datasheet (Rev. A) PDF | HTML 2019年 11月 14日
Analog Design Journal High-power, low-cost, discrete linear pre-regulator for automotive rear lights 2020年 12月 21日
Functional safety information TL43xLI-Q1 Functional Safety FIT Rate and Failure Mode Distribution 2019年 12月 18日
Application note Current Supply Monitoring with the TL431LI-Q1 2019年 10月 7日
Application note Designing With the Improved TL431LI (Rev. A) 2019年 6月 28日
E-book Voltage Supervisor and Reset ICs: Tips, Tricks and Basics 2019年 6月 28日
Application note Implementing Voltage References and Supervisors Into Your Traction Inverter Desi 2019年 5月 22日

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模擬型號

TL431LI PSpice Transient Model

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TL431LI Unencrypted PSpice Transient Model

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TL431LI and ATL431LI PSpice Average Model

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TL431LI and ATL431LI Unencrypted PSpice Average Model

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計算工具

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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產品
分流電壓參考
ATL431 — 2.5-V 低 IQ 可調整精密分流穩壓器 ATL431LI — 以超小型 DQN 封裝提供的低 IQ 可編程分流穩壓器 ATL431LI-Q1 — 車用高頻寬、低 IQ 可編程分流穩壓器 (針腳配置：KRA) ATL432 — 2.5V 精密可編程分流穩壓器 ATL432LI — 高頻寬、低 IQ 可編程分流穩壓器 (針腳配置：RKA) ATL432LI-Q1 — 車用高頻寬、低 IQ 可編程分流穩壓器 (針腳配置：RKA) LM4030 — 超高精確分流電壓參考 LM4040 — 固定電壓、45-µA 精密微功率分流電壓參考 LM4040-N — 100-ppm/°C 精密微功率分流電壓參考 LM4040-N-Q1 — 車用 100-ppm/°C 精密微功率分流電壓參考 LM4040C25-EP — 強化型產品 2.5V 精密微功耗分流電壓參考，0.5% 精確度 LM4041-N — 固定式與可調式 45-µA 精密微功率分流電壓參考 LM4041-N-Q1 — 車用精密微功率分流電壓參考 LM4041A12 — 1.2-V 精密微功率分流電壓參考，0.1% 準確度 LM4041B — 可調式精密微功耗分流電壓參考，0.2% 精確度 LM4041B12 — 1.2-V 精密微功率分流電壓參考，0.2% 準確度 LM4041C — 可調式精密微功耗分流電壓參考，0.5% 精確度 LM4041C12 — 1.2-V 精密微功率分流電壓參考，0.5% 準確度 LM4041D — 可調式精密微功耗分流電壓參考，1% 精確度 LM4041D12 — 1.2-V 精密微功率分流電壓參考，1% 準確度 LM4050-N — 50-ppm/°C 精密微功率分流電壓參考 LM4050-N-Q1 — 車用 50-ppm/°C 精密微功率分流電壓參考 LM4050QML-SP — 抗輻射 QMLV、2.5-V 或 5-V 分流電壓參考 LM4051-N — 固定式與可調式精密微功率分流電壓參考 LMV431 — 1.5% 低電壓 (1.24-V) 可調式精密分流穩壓器 LMV431A — 1% 低電壓 (1.24-V) 可調式精密分流穩壓器 LMV431B — 0.5% 低電壓 (1.24-V) 可調節式精密分流穩壓器 TL431 — 可調整精密度分流穩壓器 TL431-Q1 — 車用可調式精密分流穩壓器 (針腳配置：KRA) TL431C — 2% 可調式精準分流穩壓器 TL431LI — 具有最佳化參考電流的可調整精密分流穩壓器 (針腳配置：KRA) TL431LI-Q1 — 具有最佳化參考電流的車用可調整精密分流穩壓器 TL432 — 可調精密度分流穩壓器 (反向針腳配置) TL432-Q1 — 車用可調式精密分流穩壓器 (針腳配置：RKA) TL432LI — 具有最佳化參考電流的可調整精密分流穩壓器 (針腳配置：RKA) TL432LI-Q1 — 具有最佳化參考電流的車用可調整精密分流穩壓器 TLA431 — 具有 KRA 接腳配置的所有電容器穩定精密可編程參考 TLA432 — 具有 RKA 接腳配置的所有電容器穩定精密可編程參考 TLV431 — 1.5% 準確度、低電壓、可調整精密度分流穩壓器 TLV431A — 1% 準確度、低電壓、可調整精密度分流穩壓器 TLV431A-Q1 — 車用低店家可調式精密分流聯穩壓器 TLV431B — 0.5% 準確度、低電壓、可調整精密度分流穩壓器 TLV431B-Q1 — 車用、低電壓可調式精密分流穩壓器 TLVH431 — 1.5% 低電壓寬操作電流可調整精密度分流穩壓器 TLVH431A — 1% 低電壓寬操作電流可調整精密度分流穩壓器 TLVH431A-Q1 — 車用、低電壓可調式精密分流穩壓器 TLVH431B — 0.5% 低電壓寬操作電流可調整精密度分流穩壓器 TLVH431B-EP — 強化型塑膠 0.5% 低電壓寬運作電流可調整精密度分流穩壓器 TLVH431B-Q1 — 車用低電壓可調式精密分流聯穩壓器 (反向接腳配置) TLVH432 — 1.5% 低電壓寬操作電流可調整精密度分流穩壓器 (反向針腳配置) TLVH432A — 1% 低電壓寬操作電流可調整精密度分流穩壓器 (反向針腳配置) TLVH432B — 0.5% 低電壓寬操作電流可調式精密分流穩壓器 (反向接腳配置)
一般用途運算放大器
TLV4313 — 四路、5.5-V、1-MHz、低靜態電流 (65-μA)、RRIO 運算放大器 TLV4314 — 四路、5.5-V、3-MHz、RRIO 運算放大器 TLV4314-Q1 — 車規、四路、5.5-V、3-MHz、RRIO 運算放大器 TLV4316 — 四路、5.5-V、10-MHz、RRIO 運算放大器 TLV4316-Q1 — 車規、四路、5.5-V、10-MHz、RRIO 運算放大器 TLV4379 — 四路、5.5-V、90-kHz、低靜態電流 (4-μA)、RRIO 運算放大器
精密度運算放大器 (Vos<1mV)
TLV4333 — 適用於成本導向系統的四路、350-kHz、低雜訊、RRIO、CMOS 運算放大器 TLV4376 — 四路、5.5-MHz、100 µV 偏移、8-nV/√Hz 雜訊、815-µA 功率、精密運算放大器 TLV4387 — 四路、超高精確度 (10 μV) 零漂移 (0.01 μV/°C)、低輸入偏壓電流運算放大器
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PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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