Overview
The TL432AQDBZR is a precision programmable reference voltage regulator produced by Texas Instruments. It is part of the TL431 and TL432 family of three-terminal adjustable shunt regulators, known for their thermal stability and wide range of operating temperatures. This device is particularly useful in applications requiring a stable and adjustable voltage reference.
The TL432AQDBZR offers the same functionality as the TL431 but with a different pinout, making it suitable for specific design requirements. It is available in various packages, including the SOT-23-3 package, which is compact and suitable for surface mount applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Reference Voltage (Vref) | 2.495 V | V |
| Output Voltage Range | 2.495 V to 36 V | V |
| Output Current | 1 mA to 100 mA | mA |
| Tolerance | ±1% (A grade) | % |
| Operating Temperature Range | -40°C to 125°C | °C |
| Package Type | SOT-23-3 (DBZ) | |
| Mounting Type | Surface Mount | |
| Cathode Voltage (VKA) | Up to 37 V | V |
| Typical Output Impedance | 0.2 Ω | Ω |
Key Features
- Adjustable Output Voltage: The output voltage can be set to any value between 2.495 V and 36 V using two external resistors.
- Low Output Noise: The device features low output noise, making it suitable for applications requiring high stability.
- Low Output Impedance: A typical output impedance of 0.2 Ω ensures minimal voltage drop and high efficiency.
- Wide Operating Temperature Range: The device operates from -40°C to 125°C, making it suitable for a variety of environmental conditions.
- High Stability Over Temperature: The device exhibits low temperature drift, ensuring good stability over the entire temperature range.
- Sharp Turn-On Characteristic: Active output circuitry provides a very sharp turn-on characteristic, making it an excellent replacement for Zener diodes in many applications.
Applications
- Rack Server Power: Used in power supply designs for rack servers due to its high stability and adjustable output voltage.
- Industrial AC/DC Power Supplies: Suitable for industrial power supplies requiring a stable and adjustable voltage reference.
- AC Inverter & VF Drives: Used in inverter and variable frequency drive applications where stable voltage references are crucial.
- Servo Drive Control Modules: Employed in servo drive control modules for precise voltage regulation.
- Notebook PC Power Adapters: Used in power adapter designs for notebook PCs to ensure stable and efficient power delivery.
Q & A
- What is the TL432AQDBZR and what is its primary function?
The TL432AQDBZR is a precision programmable reference voltage regulator used to provide a stable and adjustable voltage reference in various electronic circuits.
- What is the output voltage range of the TL432AQDBZR?
The output voltage can be adjusted from 2.495 V to 36 V using two external resistors.
- What are the operating temperature ranges for the TL432AQDBZR?
The device operates from -40°C to 125°C.
- What is the typical output impedance of the TL432AQDBZR?
The typical output impedance is 0.2 Ω.
- What are some common applications of the TL432AQDBZR?
Common applications include rack server power, industrial AC/DC power supplies, AC inverter & VF drives, servo drive control modules, and notebook PC power adapters.
- How does the TL432AQDBZR differ from the TL431?
The TL432AQDBZR has the same functionality as the TL431 but with a different pinout, making it suitable for specific design requirements.
- What is the tolerance of the TL432AQDBZR?
The tolerance is ±1% for the A grade.
- What is the maximum cathode voltage for the TL432AQDBZR?
The maximum cathode voltage is up to 37 V.
- Does the TL432AQDBZR have low output noise?
Yes, the device features low output noise.
- What package type is the TL432AQDBZR available in?
The TL432AQDBZR is available in the SOT-23-3 (DBZ) package.
