TL431B (正在供货)

精度为 0.5% 的可调精密并联稳压器

精度为 0.5% 的可调精密并联稳压器 - TL431B
数据表
 

备选器件推荐

  • ATL431  -  30X lower Ik (35uA max), as well as improved stability.
  • TLV431  -  Vout (12V max) and Iz (80mA max), as well as different pinouts for SOT23-3 & SOT-89 packages, Vref=1.24, 2% trim accuracy.
  • TLVH431  -  Wider range for Vout (18V max) and Iz (80mA max), as well as different pinouts for SOT23-3 & SOT-89 packages.

Different accuracy grades available

This device is available in 3 accuracy grades :

描述

The TL431 and TL432 devices are three-terminal adjustable shunt regulators, with specified thermal stability over applicable automotive, commercial, and military temperature ranges. The output voltage can be set to any value between Vref (approximately 2.5 V) and 36 V, with two external resistors. These devices have a typical output impedance of 0.2 Ω. Active output circuitry provides a very sharp turn-on characteristic, making these devices excellent replacements for Zener diodes in many applications, such as onboard regulation, adjustable power supplies, and switching power supplies. The TL432 device has exactly the same functionality and electrical specifications as the TL431 device, but has different pinouts for the DBV, DBZ, and PK packages.

Both the TL431 and TL432 devices are offered in three grades, with initial tolerances (at 25°C) of 0.5%, 1%, and 2%, for the B, A, and standard grade, respectively. In addition, low output drift versus temperature ensures good stability over the entire temperature range.

The TL43xxC devices are characterized for operation from 0°C to 70°C, the TL43xxI devices are characterized for operation from –40°C to 85°C, and the TL43xxQ devices are characterized for operation from –40°C to 125°C.

特性

  • Reference Voltage Tolerance at 25°C
    • 0.5% (B Grade)
    • 1% (A Grade)
    • 2% (Standard Grade)
  • Adjustable Output Voltage: Vref to 36 V
  • Operation From −40°C to 125°C
  • Typical Temperature Drift (TL431B)
    • 6 mV (C Temp)
    • 14 mV (I Temp, Q Temp)
  • Low Output Noise
  • 0.2-Ω Typical Output Impedance
  • Sink-Current Capability: 1 mA to 100 mA

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参数 与其它产品相比 并联电压基准

 
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
TL431B ATL431 ATL432 LM431 LMV431 TL431 TL431A TL431A-Q1 TL432 TL432A TL432A-Q1 TL432B TL432B-Q1 TLVH431 TLVH431A TLVH431B TLVH432 TLVH432A TLVH432B
Adjustable    Adjustable    Adjustable    Adjustable    Adjustable    Adjustable    Adjustable    Adjustable    Adjustable    Adjustable    Adjustable    Adjustable    Adjustable    Adjustable    Adjustable    Adjustable    Adjustable    Adjustable    Adjustable   
2.495    2.5    2.5    2.5    1.24    2.495    2.495    2.495    N/A    2.495    2.495    2.495    N/A    N/A    N/A    N/A    N/A    N/A    N/A   
2.495    2.5    2.5    2.5    1.24    2.495    2.495    2.495    2.495    2.495    2.495    2.495    2.495    1.24    1.24    1.24    1.24    1.24    1.24   
36    36    36    36    30    36    36    36    36    36    36    36    36    18    18    18    18    18    18   
0.5    0.5
1   
0.5
1   
0.5
1
2   
1.5    2    1    1    2    1    1    0.5    0.5    1.5    1    0.5    1.5    1    0.5   
92    92    92    97    129
138   
92    92    92    92    92    92    92    92    138    138    138    138    138    138   
Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Automotive    Catalog    Catalog    Automotive    Catalog    Automotive    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog   
-40 to 125
-40 to 85
0 to 70   
-40 to 125
-40 to 85   
-40 to 125    -40 to 85
0 to 70   
-40 to 85
0 to 70   
-40 to 125
-40 to 85
0 to 70   
-40 to 125
-40 to 85
0 to 70   
-40 to 125    -40 to 125
-40 to 85
0 to 70   
-40 to 125
-40 to 85
0 to 70   
-40 to 125    -40 to 125
-40 to 85
0 to 70   
-40 to 125    -40 to 125
-40 to 85
0 to 70   
-40 to 125
-40 to 85
0 to 70   
-40 to 125
-40 to 85
0 to 70   
-40 to 125
-40 to 85
0 to 70   
-40 to 85
0 to 70
-40 to 125   
-40 to 125
0 to 70
-40 to 85   
400    20    20    400    80    400    400    400    400    400    400    400    400    60    60    60    60    60    60   
100    100    100    100    15    100    100    100    100    100    100    100    100    80    80    80    80    80    80   
PDIP
SC70
SO
SOIC
SOT-23
SOT-23
SOT-89
TO-92
TSSOP   
SOT-23    SOT-23    SOIC
SOT-23
TO-92   
SOT-23
TO-92   
PDIP
SC70
SO
SOIC
SOT-23
SOT-23
SOT-89
TO-92
TSSOP   
PDIP
SC70
SO
SOIC
SOT-23
SOT-23
SOT-89
TO-92
TSSOP   
SOT-23
SOT-23   
SOT-23
SOT-23
SOT-89   
SOT-23
SOT-23
SOT-89   
SOT-23    SOT-23
SOT-23
SOT-89   
SOT-23    SC70
SOT-23
SOT-23
SOT-89
TO-92   
SC70
SOT-23
SOT-23
SOT-89
TO-92   
SC70
SOT-23
SOT-23
SOT-89
TO-92   
SOT-23
SOT-89   
SOT-23
SOT-89   
SOT-23
SOT-89   

其它合格版本 TL431B

版本 器件型号 定义
汽车电子 TL431B-Q1 Q100 适用于追求零缺陷的高可靠性汽车电子应用的器件