TLVH431B-EP Enhanced-plastic 0.5% low-voltage wide-operating-current adjustable precision shunt regulator | TIJ.co.jp

TLVH431B-EP
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Enhanced-plastic 0.5% low-voltage wide-operating-current adjustable precision shunt regulator

 

概要

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.

特長

  • 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

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機能一覧

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Part number オーダー・オプション Reference voltage VO (V) VO adj (Min) (V) VO adj (Max) (V) Initial accuracy (Max) (%) Temp coeff (Max) (ppm/ degree C) Rating Operating temperature range (C) Iz for regulation (Min) (uA) Iout/Iz (Max) (mA) Package Group Iref (uA) I I(dev) (uA)
TLVH431B-EP ご注文 Adjustable     1.24     1.24     18     0.5     138     Catalog     -55 to 125     60     80     SOT-23 | 3     0.5     0.5    
TL1431-EP ご注文 Adjustable       2.5     36     0.4     114     HiRel Enhanced Product     -40 to 125
-55 to 125    
450     100     SOIC | 8