TL431ACDR Texas Instruments Integrated Circuit (SOT23 (8-Pin)) In Stock
1% accuracy adjustable precision shunt voltage regulator with 2.495V reference. Output range 2.5V–36V, 100mA sink current, low dynamic impedance. From $0.0535, in stock, worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (8-Pin)
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- TL431ACDR Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.0535(MOQ 1)
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 1% initial accuracy with tight 2.495V reference voltage for precision regulation
- Wide adjustable output voltage range from 2.5V to 36V
- High sink current capability up to 100mA
- Low dynamic output impedance for stable regulation
- SOT-23 8-pin compact package ideal for space-constrained designs
- RoHS compliant (Pb-free) with e4 JEDEC moisture sensitivity rating
Applications
The TL431ACDR is widely used in switch-mode power supplies as a precision feedback element for output voltage regulation. It serves in battery chargers, linear regulators, and voltage monitoring circuits where tight reference accuracy is critical. Additional applications include op-amp bias networks, adjustable voltage references, and precision comparator circuits in industrial and consumer electronics.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Analog IC - Other Type | TWO TERMINAL VOLTAGE REFERENCE |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Current-Max | 0.1A |
| Output Voltage-Max | 2.52V |
| Output Voltage-Min | 2.47V |
| Output Voltage-Nom | 2.495V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Temp Coef of Voltage-Max | 92ppm/°C |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Trim/Adjustable Output | YES |
| Voltage Tolerance-Max | 1% |
| ## TL431ACDR Alternates Showing results | Image |
| Package | SOT23 (8-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Mexico |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for TL431ACDR:
Voltage Reference, 1 Output, 2.495V, Trim/Adjustable, BIPolar, PDSO8
suggested
Two Terminal Voltage Reference, 1 Output, 2.495V, Trim/Adjustable, BIPolar, PDSO8
Frequently Asked Questions
What is the output voltage range of the TL431ACDR?
The TL431ACDR provides an adjustable output voltage range from 2.5V to 36V. The internal reference voltage is 2.495V (typ) with 1% initial accuracy, making it suitable for precision voltage regulation applications.
What is the maximum sink current of the TL431ACDR?
The TL431ACDR can sink a maximum cathode current of 100mA (0.1A). This makes it suitable for driving optocouplers and other loads in feedback loops of SMPS designs without requiring additional buffer stages.
What package does the TL431ACDR come in?
The TL431ACDR is housed in an SOT-23 8-pin (R-PDSO-G8) surface-mount package. This compact footprint is ideal for space-constrained PCB layouts in portable and embedded power supply designs.
What are common applications for the TL431ACDR?
The TL431ACDR is commonly used in switch-mode power supplies for output voltage feedback, linear voltage regulators, battery charger control circuits, voltage monitoring, and precision reference generation in industrial and consumer electronics.
Is the TL431ACDR RoHS compliant?
Yes, the TL431ACDR is RoHS compliant and lead-free (Pb-free code: Yes, JESD-609 code: e4). It meets international environmental standards for use in modern electronic products requiring halogen-free and lead-free components.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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