Overview
The TL431IDMR2G, produced by onsemi, is a programmable precision reference voltage regulator. This three-terminal shunt regulator diode operates as a low temperature coefficient zener diode, programmable from 2.495 V to 36 V using two external resistors. It is part of the TL431 series, known for its wide operating current range and low dynamic output impedance, making it an excellent replacement for zener diodes in various applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Programmable Output Voltage | 2.495 V to 36 V | V |
| Voltage Reference Tolerance | ± 0.4% (Typ @ 25°C for TL431B) | % |
| Dynamic Output Impedance | 0.22 Ω (Typical) | Ω |
| Sink Current Capability | 1.0 mA to 100 mA | mA |
| Temperature Coefficient | 50 ppm/°C (Typical) | ppm/°C |
| Operating Junction Temperature | -40°C to +125°C | °C |
| Storage Temperature Range | -65°C to +150°C | °C |
| Package Type | Micro8 |
Key Features
- Programmable output voltage from 2.495 V 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, Halogen Free/BFR Free, and RoHS compliant.
- AEC-Q100 qualified and PPAP capable for automotive and other demanding applications.
Applications
The TL431IDMR2G is versatile and can be used in a variety of applications, including:
- Digital voltmeters and other precision measurement instruments.
- Power supplies, especially where a non-standard reference voltage is required.
- Feedback control circuits, such as driving optocouplers in power supplies.
- Op-amp circuitry and other analog circuits requiring a stable reference voltage.
Q & A
- What is the programmable output voltage range of the TL431IDMR2G?
The TL431IDMR2G can be programmed to output voltages from 2.495 V to 36 V using two external resistors.
- What is the typical voltage reference tolerance of the TL431IDMR2G?
The typical voltage reference tolerance is ± 0.4% at 25°C for the TL431B series.
- What is the dynamic output impedance of the TL431IDMR2G?
The dynamic output impedance is typically 0.22 Ω.
- What is the sink current capability of the TL431IDMR2G?
The sink current capability ranges from 1.0 mA to 100 mA.
- What is the temperature coefficient of the TL431IDMR2G?
The equivalent full-range temperature coefficient is typically 50 ppm/°C.
- What are the operating temperature ranges for the TL431IDMR2G?
The operating junction temperature range is -40°C to +125°C, and the storage temperature range is -65°C to +150°C.
- Is the TL431IDMR2G RoHS compliant?
- What package types are available for the TL431IDMR2G?
The TL431IDMR2G is available in a Micro8 package.
- What are some common applications of the TL431IDMR2G?
- Is the TL431IDMR2G suitable for automotive applications?
