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Description
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.
Title
Voltage Reference, Programmable Precision, Shunt Regulator
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The TL431A, 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 36 V with two external resistors. These devices exhibit a wide operating current range 100 mA with a typical dynamic impedance 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 TL431A, B operates as a shunt regulator, it can be used as either a positive or negative voltage reference.
FeaturesProgrammable Output Voltage 36 V Voltage Reference Tolerance: ±0.4%, Typ 25°C (TL431B) Low Dynamic Output Impedance, 0.22 W Typical Sink Current Capability to 100 mA Equivalent Full-Range Temperature Coefficient of 50 ppm/°C Typical Temperature Compensated for Operation over Full Rated Operating
Low Output Noise Voltage NCV/SCV Prefixes for Automotive and Other ApplicationsThis is an internally modified SOIC-8 package. Pins 3, 6 and 7 are electrically common to the die attach flag. This internal lead frame modification increases power dissipation capability when appropriately mounted on a printed circuit board. This modified package conforms to all external dimensions of the standard SOIC-8 package.
See detailed ordering and shipping information on page 13 of this data sheet.Derate above 25°C Ambient Temperature D, LP Suffix Plastic Package P Suffix Plastic Package DM Suffix Plastic Package Total Power Dissipation = 25°C Derate above 25°C Case Temperature D, LP Suffix Plastic Package P Suffix Plastic Package
ESD Rating (Note 1) Human Body Model per JEDEC JESD22-A114F Machine Model per JEDEC JESD22-A115C Charged Device Model per JEDEC JESD22-C101E
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected. 1. This device contains latch-up protection and exceeds ±100 mA per JEDEC standard JESD78.
Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond the Recommended Operating Ranges limits may affect device reliability.
Thermal Resistance, Junction-to-Ambient Thermal Resistance, Junction-to-CaseProduct parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product performance may not be indicated by the Electrical Characteristics if operated under different conditions. 2. Tlow = -40°C for TL431IDM, TL431BIDM;
3. Guaranteed by design. 4. The deviation parameter DVref is defined as the difference between the maximum and minimum values obtained over the full operating
The average temperature coefficient of the reference input voltage, aVref is defined as:aVref can be positive or negative depending on whether Vref Min or Vref Max occurs at the lower ambient temperature. (Refer to Figure 6.)
5. The dynamic impedance ZKA is defined as: |ZKA| + DDVIKKA. When the device is programmed with two external resistors, R1 and R2,
(refer to Figure 2) the total dynamic impedance of the circuit is defined as: |ZKA| [ |ZKA|Some Part number from the same manufacture
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10000 buyer reviews from United States
Patricia Miller
Length of registration:7 years
I recently ordered an IC SFH6343 from your company and I am very pleased with its performance. The IC is reliable and efficient, and it has been working great in my project. It is easy to use and the instructions were clear and concise. I am very satisfied with the quality of the product and the customer service I received. Thank you for providing me with a great product and excellent customer ser
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03/17/2023
Harry Bauder
Length of registration:3 years
The packaging is exquisite, the high-end atmosphere is high-end, it can be seen that the merchants are very attentive. The baby is really good, it is the same as the picture, there is no difference, it is really good value for money, good quality and low price
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01/09/2023
Stephen Ballentine
Length of registration:3 years
I enjoyed learning how to use these. Fixed another broken project with it. Excellent quality, and it arrived in a protective tube designed to prevent damage.
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01/09/2023
Joe Ritch
Length of registration:3 years
The order is accepted, decorated and shipped quickly. Packing is good. Tracking works. Satisfied
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Gordon C Whitten
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The goods are received on time, until I checked, as I will check the feedback. The seller sent on time, everything came safe and sound.
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Glenn Hann
Length of registration:3 years
rec'd chips; great packing for international shipping; thx for making small quantities available of these hard to find items!
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12/22/2022
Lammi
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Fantastic customer support, my order arrived very fast and well packed. All around a fantastic experience and nice to have a place to buy lower quanties of hard to find chips.
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12/22/2022
Shawn Long
Length of registration:3 years
I enjoyed learning how to use these. Fixed another broken project with it. Excellent quality, and it arrived in a protective tube designed to prevent damage.
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12/19/2022
arturo solano
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I received the parts swift and well packed. Thanks for the great service.
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12/19/2022
John Hernandez
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I enjoyed learning how to use these. Fixed another broken project with it. Excellent quality, and it arrived in a protective tube designed to prevent damage.
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TL431AILPG
TL431AILPG has several brands around the world that may have alternate names for TL431AILPG due to regional differences or acquisition. TL431AILPG may also be known as the following names:
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