Overview
The TL431ACLPRA, produced by onsemi, is a three-terminal programmable shunt regulator diode. This device is part of the TL431 series, which operates as a low temperature coefficient zener diode that can be programmed to output voltages from the reference voltage (2.5 V) up to 36 V using two external resistors. It is widely used in various applications due to its versatility and stability.
Key Specifications
| Characteristic | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Cathode to Anode Voltage | VKA | - | - | 37 | V |
| Cathode Current Range, Continuous | IK | -100 | - | 150 | mA |
| Reference Input Current Range, Continuous | Iref | -0.05 | - | 10 | mA |
| Operating Junction Temperature | TJ | - | - | 150 | °C |
| Operating Ambient Temperature Range | TA | -40 | - | 70 | °C |
| Reference Input Voltage | Vref | 2.44 | 2.495 | 2.55 | V |
| Dynamic Impedance | |ZKA| | 0.22 | - | 0.5 | Ω |
| Thermal Resistance, Junction-to-Ambient | RθJA | 114 | - | - | °C/W |
| Thermal Resistance, Junction-to-Case | RθJC | 41 | - | - | °C/W |
Key Features
- Programmable output voltage up to 36 V using two external resistors.
- Low dynamic output impedance of 0.22 Ω 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 the full rated operating temperature range.
- Low output noise voltage.
- Pb-free packages available.
Applications
- Digital voltmeters.
- Power supplies.
- Op amp circuitry.
- Replacement for zener diodes in various applications.
- Control of switching power supplies.
Q & A
- What is the TL431ACLPRA?
The TL431ACLPRA is a three-terminal programmable shunt regulator diode produced by onsemi.
- What is the programmable output voltage range of the TL431ACLPRA?
The output voltage can be programmed from the reference voltage (2.5 V) up to 36 V using two external resistors.
- What is the typical dynamic impedance of the TL431ACLPRA?
The typical dynamic impedance is 0.22 Ω.
- What is the operating current range of the TL431ACLPRA?
The device can operate with a sink current range of 1.0 mA to 100 mA.
- What is the temperature coefficient of the TL431ACLPRA?
The equivalent full-range temperature coefficient is 50 ppm/°C typical.
- What are the typical operating temperature ranges for the TL431ACLPRA?
The operating ambient temperature range is -40°C to 70°C.
- Is the TL431ACLPRA Pb-free?
- What are some common applications of the TL431ACLPRA?
- Can the TL431ACLPRA be used in switching power supplies?
- What is the thermal resistance of the TL431ACLPRA?
