TL431ACD Voltage References & Supervisors by ON Semiconductor

Voltage Reference, Programmable Precision, Shunt Regulator

Status: Unknown
Series: TL431A
RoHS: Compliant
Download Datasheet Visit Manufacturer Site View Pricing & Stock

The TL431, A, B integrated circuits are three-terminal programmable shunt regulator diodes. These monolithic IC voltage references operate as a low temperature coefficient zener which is programmable from Vref to 36 V with two external resistors. These devices exhibit a wide operating current range of 1.0 mA to 100 mA with a typical dynamic impedance of 0.22 W. The characteristics of these references make them excellent replacements for zener diodes in many applications such as digital voltmeters, power supplies, and op amp circuitry. The 2.5 V reference makes it convenient to obtain a stable reference from 5.0 V logic supplies, and since the TL431, A, B operates as a shunt regulator, it can be used as either a positive or negative voltage reference.

Where to Buy

Prices starting from US$0.24

Distributor Stock
Logo for RS
RS
from US$0.67
3,225
in stock
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Logo for Texas Instruments
Texas Instruments
from US$0.24
28,817
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Transfer Multisort Elektronik
from US$0.48
612
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Newark Electronics
from US$0.71
258
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element14
from US$0.42
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Farnell
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Features

Programmable Output Voltage to 36 V
Voltage Reference Tolerance: +/- 0.4%, Typ @ 25°C (TL431B)
Low Dynamic Output Impedance, 0.22 W Typical
Sink Current Capability of 1.0 mA to 100 mA
Equivalent Full-Range Temperature Coefficient of 50 ppm/ °C Typical
Temperature Compensated for Operation over Full Rated Operating Temperature Range
Low Output Noise Voltage
Pb-Free Packages are Available

Specifications

Compliance AEC Qualified PPAP Capable


TL431ACD Semiconductors - ICs by STMicroelectronics

VOLTAGE REF SHUNT 2.495V-36V SOIC-8

Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Voltage Reference Type Shunt - Adjustable
Product Range -
Reference Voltage 2.495V to 36V
Initial Accuracy 1%
Temperature Coefficient -
Voltage Reference Case Style SOIC
No. of Pins 8Pins
Operating Temperature Min 0°C
Operating Temperature Max 70°C
Automotive Qualification Standard -
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
SVHC No SVHC (17-Dec-2015)
Accuracy % 1%
Base Number 431
Cathode Current Ik Max 100mA
IC Generic Number 431
IC Temperature Range Commercial
Input Voltage 2.495V to 36V
Input Voltage Max 36V
Input Voltage Min 2.495V
Operating Temperature Range 0°C to +70°C
Operating Voltage Tolerance + 1%
Output Current Max 100mA
Output Voltage Max 36V
Output Voltage Min 2.5V
Reference Volt Tolerance ±% 1%
Reference Voltage Tolerance 50mV
Reference Volts 2.495V
Temperature Coeff Over Temp Range 3mV
Termination Type Surface Mount Device
Topology Shunt Programmable
Voltage Regulator Type Positive Adjustable

TL431ACD Semiconductors - ICs by Texas Instruments

VOLTAGE REF SHUNT 2.495V-36V SOIC-8

Status: Unknown
Series: TL431 Series
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

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.

Specifications

Voltage Reference Type Shunt - Adjustable
Product Range TL431 Series
Reference Voltage 2.495V to 36V
Initial Accuracy 1%
Temperature Coefficient -
Voltage Reference Case Style SOIC
No. of Pins 8Pins
Operating Temperature Min 0°C
Operating Temperature Max 70°C
Automotive Qualification Standard -
MSL MSL 1 - Unlimited
SVHC No SVHC (27-Jun-2018)
Accuracy % 1%
Base Number 431
Cathode Current Ik Max 100mA
Dropout Voltage Vdo 1V
IC Generic Number 431
IC Temperature Range Commercial
Input Voltage 2.495V to 36V
Input Voltage Max 36V
Input Voltage Min 2.495V
Logic Function Number 431
Operating Temperature Range 0°C to +70°C
Operating Voltage Tolerance + 1%
Output Current Max 100mA
Output Voltage 40V
Output Voltage Max 36V
Output Voltage Min 2.5V
Reference Volt Tolerance ±% 1%
Reference Voltage Tolerance 50mV
Reference Volts 2.495V
Temperature Coeff Over Temp Range 6mV
Topology Shunt Adjustable
Voltage Regulator Type Shunt

Alternative Descriptions

Adjustable precision shunt regulator | Texas Instruments
TL431A adj 100mA shunt regulator, SOIC8 | RS
IC: voltage reference source | Transfer Multisort Elektronik
Voltage Ref, Shunt, 2.495V-36V, Soic-8 | Newark Electronics
VOLTAGE REF, SHUNT, 2.495V-36V, SOIC-8 | element14

Frequently Asked Questions

Where can I find additional details, specifications and documents for a TL431ACD?

Additional datasheets, footprints and schematics for TL431ACD are listed on our Part Details page. You can also find images and similar parts to TL431ACD on this page.

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What category does TL431ACD fall under?

The TL431ACD is listed under Power Management > Voltage References & Supervisors > Voltage References.

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You can view similar parts to TL431ACD when available in the Voltage References range under the specifications section at the bottom of the details page.

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Submit any questions directly to the customer support team of the distributor listing the product. For the TL431ACD you can contact the distributor directly for product support, shipping queries etc.

Is the TL431ACD RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by ON Semiconductor.

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Authorised distributors including Texas Instruments, RS, Transfer Multisort Elektronik, Newark Electronics and element14 have stock available or on a lead time for TL431ACD.

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