Overview
The TL432AQDBZRG4 is a precision programmable reference voltage regulator manufactured by Texas Instruments. It is part of the TL431 and TL432 series, which are three-terminal adjustable shunt regulators known for their thermal stability across various temperature ranges. These devices are designed to provide a stable reference voltage, making them suitable for a wide range of applications, including industrial, automotive, and commercial sectors.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Reference Voltage Tolerance at 25°C | 2% (Standard grade) | % |
| Adjustable Output Voltage | Vref to 36 V | V |
| Operating Temperature Range | –40°C to 125°C | °C |
| Typical Temperature Drift | 6 mV (C temp), 14 mV (I temp, Q temp) | mV |
| Output Impedance | 0.2 Ω | Ω |
| Sink-Current Capability | 1 mA to 100 mA | mA |
| Package Type | SOT-23 (DBZ) | |
| Package Size | 2.90 mm × 1.30 mm | mm |
Key Features
- High thermal stability over applicable automotive, commercial, and military temperature ranges.
- Adjustable output voltage from Vref (approximately 2.5 V) to 36 V using two external resistors.
- Low output noise and typical output impedance of 0.2 Ω.
- Sink-current capability ranging from 1 mA to 100 mA.
- Active output circuitry providing a sharp turn-on characteristic, making it an excellent replacement for Zener diodes in many applications.
Applications
- Rack server power supplies.
- Industrial AC/DC power supplies.
- AC inverters and variable frequency (VF) drives.
- Servo drive control modules.
- Notebook PC power adapter designs.
Q & A
- What is the TL432AQDBZRG4? The TL432AQDBZRG4 is a precision programmable reference voltage regulator from Texas Instruments.
- What are the key applications of the TL432AQDBZRG4? It is used in rack server power supplies, industrial AC/DC power supplies, AC inverters, servo drive control modules, and notebook PC power adapter designs.
- What is the adjustable output voltage range of the TL432AQDBZRG4? The output voltage can be adjusted from Vref (approximately 2.5 V) to 36 V.
- What is the operating temperature range of the TL432AQDBZRG4? It operates from –40°C to 125°C.
- What is the typical output impedance of the TL432AQDBZRG4? The typical output impedance is 0.2 Ω.
- What is the sink-current capability of the TL432AQDBZRG4? It can sink current from 1 mA to 100 mA.
- In what package is the TL432AQDBZRG4 available? It is available in a SOT-23 (DBZ) package.
- What are the dimensions of the SOT-23 (DBZ) package? The package dimensions are 2.90 mm × 1.30 mm.
- Why is the TL432AQDBZRG4 preferred over Zener diodes in some applications? It provides a sharp turn-on characteristic and low output noise, making it a better choice for many applications.
- What are the different grades of the TL431 and TL432 devices based on reference voltage tolerance? The devices are available in B, A, and standard grades with initial tolerances of 0.5%, 1%, and 2%, respectively.
