TLVH431A (ACTIVE)

1% Accuracy Low-Voltage Wide-Operating Current Adjustable Precision Shunt Regulator

1% Accuracy Low-Voltage Wide-Operating Current Adjustable Precision Shunt Regulator - TLVH431A
 

Different accuracy grades available

This device is available in 3 accuracy grades :

Description

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 (1.24 V) and 18 V with two external resistors (see ). These devices operate from a lower voltage (1.24 V) than the widely used TL431 and TL1431 shunt-regulator references.

When used with an optocoupler, the TLVH431 and TLVH432 devices are ideal voltage references in isolated feedback circuits for 3-V to 3.3-V switching-mode power supplies. They have a typical output impedance of 0.25 Ω. 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.

Features

  • Low-Voltage Operation: Down to 1.24 V
  • 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 18 V
  • Wide Operating Cathode Current Range: 100 µA to 70 mA
  • 0.25-Ω 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

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Parametrics Compare all products in Shunt Voltage Reference

 
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
TLVH431A ATL431 ATL432 TL431 TL431A TL431A-Q1 TL431B TL432 TL432A TL432A-Q1 TL432B TL432B-Q1 TLV431 TLV431A TLV431A-Q1 TLV431B TLV431B-Q1 TLVH431 TLVH431A-Q1 TLVH431B TLVH431B-Q1 TLVH432 TLVH432A TLVH432B
Adjustable    Adjustable    Adjustable    Adjustable    Adjustable    Adjustable    Adjustable    Adjustable    Adjustable    Adjustable    Adjustable    Adjustable    Adjustable    Adjustable    Adjustable    Adjustable    Adjustable    Adjustable    Adjustable    Adjustable    Adjustable    Adjustable    Adjustable    Adjustable   
N/A    2.5    2.5    2.495    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    N/A    N/A    N/A    N/A    N/A   
1.24    2.5    2.5    2.495    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    1.24    1.24    1.24    1.24    1.24    1.24   
18    36    36    36    36    36    36    36    36    36    36    36    6    6    6    6    6    18    18    18    18    18    18    18   
1    0.5
1   
0.5
1   
2    1    1    0.5    2    1    1    0.5    0.5    1.5    1    1    0.5    0.5    1.5    1    0.5    0.5    1.5    1    0.5   
138    92    92    92    92    92    92    92    92    92    92    92    138    138    161    138    161    138    161    138    161    138    138    138   
Catalog    Catalog    Catalog    Catalog    Catalog    Automotive    Catalog    Catalog    Catalog    Automotive    Catalog    Automotive    Catalog    Catalog    Automotive    Catalog    Automotive    Catalog    Automotive    Catalog    Automotive    Catalog    Catalog    Catalog   
-40 to 125
-40 to 85
0 to 70   
-40 to 125
-40 to 85   
-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 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 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 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   
60    20    20    400    400    400    400    400    400    400    400    400    55    55    55    55    55    60    60    60    60    60    60    60   
80    100    100    100    100    100    100    100    100    100    100    100    15    15    15    15    15    80    80    80    80    80    80    80   
SC70
SOT-23
SOT-23
SOT-89
TO-92   
SOT-23    SOT-23    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   
PDIP
SC70
SO
SOIC
SOT-23
SOT-23
SOT-89
TO-92
TSSOP   
SOT-23
SOT-23
SOT-89   
SOT-23
SOT-23
SOT-89   
SOT-23    SOT-23
SOT-23
SOT-89   
SOT-23    SOT-23
SOT-23
SOT-89
TO-92   
SOIC
SOT-23
SOT-23
SOT-89
TO-92   
SOT-23    SC70
SOT-23
SOT-23
SOT-89
TO-92   
SOT-23
SOT-23   
SC70
SOT-23
SOT-23
SOT-89
TO-92   
SOT-23    SC70
SOT-23
SOT-23
SOT-89
TO-92   
SOT-23
SOT-23   
SOT-23
SOT-89   
SOT-23
SOT-89   
SOT-23
SOT-89   

Other qualified versions of TLVH431A

Version Part Number Definition
Automotive TLVH431A-Q1 Q100 devices qualified for high-reliability automotive applications targeting zero defects