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TLVH431B-EP

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精度为 0.5% 的塑料增强型、低电压、宽工作电流、可调节精密并联稳压器

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TLVH431B-EP

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VO (V) 1.24 Initial accuracy (max) (%) 0.5 VO adj (min) (V) 1.24 VO adj (max) (V) 18 Iz for regulation (min) (µA) 60 Reference voltage (V) adjustable Rating HiRel Enhanced Product Temp coeff (max) (ppm/°C) 138 Operating temperature range (°C) -55 to 125 Iout/Iz (max) (mA) 80
VO (V) 1.24 Initial accuracy (max) (%) 0.5 VO adj (min) (V) 1.24 VO adj (max) (V) 18 Iz for regulation (min) (µA) 60 Reference voltage (V) adjustable Rating HiRel Enhanced Product Temp coeff (max) (ppm/°C) 138 Operating temperature range (°C) -55 to 125 Iout/Iz (max) (mA) 80
SOT-23 (DBZ) 3 6.9204 mm² 2.92 x 2.37
  • Low-voltage operation: down to 1.24 V
  • Reference voltage tolerances 0.5% at 25°C
  • Adjustable output voltage, VO = VREF to 18 V
  • Wide operating cathode current range:
    200 µA to 70 mA
  • 0.25-Ω typical output impedance
  • Supports defense and aerospace applications:
    • Controlled baseline
    • Available in extended (–55°C to 125°C) temperature range
    • Extended product life cycle
    • Extended product-change notification
    • Product traceability
  • Low-voltage operation: down to 1.24 V
  • Reference voltage tolerances 0.5% at 25°C
  • Adjustable output voltage, VO = VREF to 18 V
  • Wide operating cathode current range:
    200 µA to 70 mA
  • 0.25-Ω typical output impedance
  • Supports defense and aerospace applications:
    • Controlled baseline
    • Available in extended (–55°C to 125°C) temperature range
    • Extended product life cycle
    • Extended product-change notification
    • Product traceability

The TLVH431B-EP device is a low-voltage, 3-terminal, adjustable voltage reference with specified thermal stability over applicable industrial and commercial temperature ranges. Output voltage can be set to any value between VREF (1.24 V) and 18 V with two external resistors (see Figure 24). This device operates from a lower voltage (1.24 V) than the widely used TL431 and TL1431 shunt-regulator references.

When used with an optocoupler, the TLVH431B-EP device is ideal for voltage references in isolated feedback circuits designed for 3-V to 3.3-V switching-mode power supplies. It has a typical output impedance of 0.25 Ω. Active output circuitry provides a very sharp turn-on characteristic, making the TLVH431B-EP device an excellent replacement for low-voltage Zener diodes in many applications, including on-board regulation and adjustable power supplies.

The TLVH431B-EP device is a low-voltage, 3-terminal, adjustable voltage reference with specified thermal stability over applicable industrial and commercial temperature ranges. Output voltage can be set to any value between VREF (1.24 V) and 18 V with two external resistors (see Figure 24). This device operates from a lower voltage (1.24 V) than the widely used TL431 and TL1431 shunt-regulator references.

When used with an optocoupler, the TLVH431B-EP device is ideal for voltage references in isolated feedback circuits designed for 3-V to 3.3-V switching-mode power supplies. It has a typical output impedance of 0.25 Ω. Active output circuitry provides a very sharp turn-on characteristic, making the TLVH431B-EP device an excellent replacement for low-voltage Zener diodes in many applications, including on-board regulation and adjustable power supplies.
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* 数据表 TLVH431B-EP Enhanced Plastic 0.5% Low-Voltage Wide-Operating Current Adjustable Precision Shunt Regulator 数据表 PDF | HTML 2019年 12月 6日
电子书 Tips and tricks for designing with voltage references (Rev. A) 2021年 5月 7日
更多文献资料 使用电压基准进行设计的提示和技巧 (Rev. A) 2021年 5月 7日
白皮书 Voltage reference selection basics white paper (Rev. A) 2018年 10月 23日

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