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TLVH431

現行

1.5% 低電壓寬操作電流可調整精密度分流穩壓器

產品詳細資料

VO (V) 1.24 Initial accuracy (max) (%) 1.5 VO adj (min) (V) 1.24 VO adj (max) (V) 18 Iz for regulation (min) (µA) 60 Reference voltage (V) adjustable Rating Catalog Temp coeff (max) (ppm/°C) 138 Operating temperature range (°C) -40 to 125 Iout/Iz (max) (mA) 80
VO (V) 1.24 Initial accuracy (max) (%) 1.5 VO adj (min) (V) 1.24 VO adj (max) (V) 18 Iz for regulation (min) (µA) 60 Reference voltage (V) adjustable Rating Catalog Temp coeff (max) (ppm/°C) 138 Operating temperature range (°C) -40 to 125 Iout/Iz (max) (mA) 80
SOT-23 (DBV) 5 8.12 mm² 2.9 x 2.8 SOT-23 (DBZ) 3 6.9204 mm² 2.92 x 2.37 SOT-89 (PK) 3 18.4275 mm² 4.5 x 4.095 SOT-SC70 (DCK) 6 4.2 mm² 2 x 2.1 TO-92 (LP) 3 19.136 mm² 5.2 x 3.68
  • Low-voltage operation: down to 1.24V
  • Reference voltage tolerances at 25°C
    • 0.5% for B grade
    • 1% for A grade
    • 1.5% for standard grade
  • Adjustable output voltage, VO = VREF to 18V
  • Wide operating cathode current range: 100µA to 70mA
  • 0.25Ω typical output impedance
  • –40°C to +125°C specifications
  • TLVH432 provides alternative pinouts for SOT-23-3 and SOT-89 packages
  • Ultra-small SC-70 package offers 40% smaller footprint than SOT-23-3
  • Low-voltage operation: down to 1.24V
  • Reference voltage tolerances at 25°C
    • 0.5% for B grade
    • 1% for A grade
    • 1.5% for standard grade
  • Adjustable output voltage, VO = VREF to 18V
  • Wide operating cathode current range: 100µA to 70mA
  • 0.25Ω typical output impedance
  • –40°C to +125°C specifications
  • TLVH432 provides alternative pinouts for SOT-23-3 and SOT-89 packages
  • Ultra-small SC-70 package offers 40% smaller footprint than SOT-23-3

The TLVH431 and TLVH432 devices are low-voltage 3-terminal adjustable voltage references, with specified thermal stability over applicable industrial and commercial temperature ranges. Output voltage can be set to any value between VREF (1.24V) and 18V with two external resistors (see Figure 6-2). These devices operate from a lower voltage (1.24V) than the widely used TL431 and TL1431 shunt-regulator references.

When used with an optocoupler, the TLVH431 and TLVH432 devices are an excellent choice for voltage references in isolated feedback circuits for 3V to 3.3V switching-mode power supplies. The devices have a typical output impedance of 0.25Ω. Active output circuitry provides a very sharp turn-on characteristic, making the TLVH431 and TLVH432 devices excellent replacements for low-voltage Zener diodes in many applications, including on-board regulation and adjustable power supplies.

The TLVH432 device is identical to the TLVH431 device, but is offered with different pinouts for the 3-pin SOT-23 and SOT-89 packages.

The TLVH431 and TLVH432 devices are low-voltage 3-terminal adjustable voltage references, with specified thermal stability over applicable industrial and commercial temperature ranges. Output voltage can be set to any value between VREF (1.24V) and 18V with two external resistors (see Figure 6-2). These devices operate from a lower voltage (1.24V) than the widely used TL431 and TL1431 shunt-regulator references.

When used with an optocoupler, the TLVH431 and TLVH432 devices are an excellent choice for voltage references in isolated feedback circuits for 3V to 3.3V switching-mode power supplies. The devices have a typical output impedance of 0.25Ω. Active output circuitry provides a very sharp turn-on characteristic, making the TLVH431 and TLVH432 devices excellent replacements for low-voltage Zener diodes in many applications, including on-board regulation and adjustable power supplies.

The TLVH432 device is identical to the TLVH431 device, but is offered with different pinouts for the 3-pin SOT-23 and SOT-89 packages.

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類型 標題 日期
* Data sheet TLVH431, TLVH432 Low-Voltage Adjustable Precision Shunt Regulators datasheet (Rev. N) PDF | HTML 2024年 6月 6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
Application note Designing Overcurrent protection for TPL7407L Peripheral Driver 2014年 11月 5日
Application note Setting the shunt voltage on an adjustable shunt regulator 2011年 9月 1日
More literature SLL Precision Reference Product Clip 2006年 2月 23日

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模擬型號

TLVH431 PSpice Transient Model

SLVM672.ZIP (19 KB) - PSpice Model
模擬型號

TLVH431 TINA-TI AC Reference Design

SLIM269.TSC (80 KB) - TINA-TI Reference Design
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SLIM268.TSC (45 KB) - TINA-TI Reference Design
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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
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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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封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOT-23 (DBV) 5 Ultra Librarian
SOT-23 (DBZ) 3 Ultra Librarian
SOT-89 (PK) 3 Ultra Librarian
SOT-SC70 (DCK) 6 Ultra Librarian
TO-92 (LP) 3 Ultra Librarian

訂購與品質

內含資訊:
  • RoHS
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  • 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
內含資訊:
  • 晶圓廠位置
  • 組裝地點

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