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TL431BIPK
+BOMIC VREF SHUNT ADJ 0.5% SOT89-3
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ManufacturerTexas Instruments
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Mfr. Part #TL431BIPK
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Package SOT-89 (PK)-3
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In Stock2272
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Specifications
| Attribute | Value |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| ReferenceType | Shunt |
| OutputType | Adjustable |
| Voltage-Output(Min/Fixed) | 2.495V |
| Voltage-Output(Max) | 36 V |
| Current-Output | 100 mA |
| Tolerance | ±0.5% |
| Current-Cathode | 700 µA |
| OperatingTemperature | -40°C ~ 85°C (TA) |
| MountingType | Surface Mount |
| Package/Case | TO-243AA |
Overview
Description
Key features of the TL431BIPK include a wide operating voltage range, adjustable output voltage, low temperature coefficient, and low output noise, making it suitable for applications like power supply regulation, voltage monitoring, and as a comparator in various electronic devices. The "B" in the part number indicates a particular tolerance and temperature range, ensuring enhanced precision and reliability. The TL431BIPK is housed in various package types, with the PK typically referring to a specific packaging style, such as TO-92 or SOT-89, facilitating easy integration into different circuit designs.
Equivalent
Features
1. Programmable Output Voltage: The output voltage can be set from 2.5V to 36V using two external resistors.
2. High Precision: It offers a tight voltage tolerance of 0.5% to 1%, which ensures high accuracy.
3. Wide Operating Current: The device operates over a wide cathode current range of 1 mA to 100 mA, making it versatile for various applications.
4. Temperature Stability: It exhibits good thermal stability, with a typical temperature coefficient of 30 ppm/°C.
5. Fast Response: The TL431BIPK provides a quick response time, beneficial for feedback loop applications.
6. Low Output Noise: It features low output noise, enhancing performance in sensitive circuits.
7. Package Options: Available in a variety of package types, including SOT-89, which is suitable for space-constrained applications.
These characteristics make the TL431BIPK ideal for use in power supply regulation, instrumentation, and control systems where precision and reliability are critical.
Pinout
1. Reference (Ref): This pin is connected to the reference voltage and is used to set the output voltage level by connecting it to an external resistor divider network.
2. Anode (A): This pin is connected to the lower potential point in the circuit, or ground in most cases. It acts as an input for the current flowing through the device.
3. Cathode (K): This pin is the output of the device and typically connects to the load. The voltage here is regulated based on the reference voltage and the external resistor network.
The TL431BIPK functions as a precision voltage reference and can be used in various applications like precision current limiting, switching power supplies, and adjustable power supplies. Its ability to maintain a constant voltage over a range of currents makes it versatile for use in many electronic circuits.
Manufacturer
Application
1. Voltage Regulation: Used in power supply circuits to maintain a stable output voltage.
2. Adjustable Voltage References: Provides reference voltages in A/D and D/A converters.
3. Shunt Regulators: Acts as a shunt regulator in voltage regulator circuits.
4. Switching Power Supplies: Enhances stability and precision in SMPS.
5. Battery Chargers: Ensures precise charging voltage levels.
6. Instrumentation: Offers stable voltage references for measurement equipment.
7. LED Drivers: Maintains consistent brightness levels by regulating voltage.
These applications leverage its stability, precision, and programmability features.