Overview
The TL431CDMR2G is a three-terminal programmable shunt regulator diode produced by onsemi. This monolithic IC operates as a low temperature coefficient zener diode, which can be programmed from 2.5 V to 36 V using two external resistors. It is designed to serve as a stable voltage reference and can be used in various applications such as digital voltmeters, power supplies, and op-amp circuitry.
Key Specifications
| Characteristic | Symbol | Unit | Min | Typ | Max |
|---|---|---|---|---|---|
| Reference Input Voltage | Vref | V | 2.44 | 2.495 | 2.55 |
| Voltage Reference Tolerance | % | ±0.4 (TL431B) | |||
| Dynamic Output Impedance | ZKA | Ω | 0.22 | ||
| Sink Current Capability | IK | mA | 1.0 | 100 | |
| Temperature Coefficient | ppm/°C | 50 | |||
| Operating Junction Temperature | TJ | °C | 150 | ||
| Operating Ambient Temperature Range | TA | °C | 0 | 70 | |
| Storage Temperature Range | Tstg | °C | -65 | 150 |
Key Features
- Programmable Output Voltage to 36 V
- Voltage Reference Tolerance: ±0.4% Typ @ 25°C (TL431B)
- Low Dynamic Output Impedance, 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 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 Applications
Applications
The TL431CDMR2G is suitable for a variety of applications, including:
- Digital Voltmeters
- Power Supplies
- Op-Amp Circuitry
- Automotive Systems (AEC-Q100 Qualified)
- Any circuit requiring a stable and programmable voltage reference
Q & A
- What is the TL431CDMR2G?
The TL431CDMR2G is a three-terminal programmable shunt regulator diode produced by onsemi.
- What is the programmable output voltage range of the TL431CDMR2G?
The output voltage can be programmed from 2.5 V to 36 V using two external resistors.
- What is the typical voltage reference tolerance of the TL431B series?
The typical voltage reference tolerance is ±0.4% at 25°C.
- What is the dynamic output impedance of the TL431CDMR2G?
The dynamic output impedance is typically 0.22 Ω.
- What is the sink current capability of the TL431CDMR2G?
The sink current capability ranges from 1.0 mA to 100 mA.
- What is the temperature coefficient of the TL431CDMR2G?
The equivalent full-range temperature coefficient is typically 50 ppm/°C.
- Is the TL431CDMR2G RoHS compliant?
- What are some common applications of the TL431CDMR2G?
Common applications include digital voltmeters, power supplies, op-amp circuitry, and automotive systems.
- What is the operating ambient temperature range of the TL431CDMR2G?
The operating ambient temperature range is from 0°C to 70°C.
- Is the TL431CDMR2G suitable for automotive applications?
