Overview
The TLVH431BIDBZRG4 from Texas Instruments is a low-voltage, adjustable precision shunt regulator. This device is designed to provide accurate voltage referencing in various applications, combining high stability with low output noise. It operates within a wide voltage range of 2.5V to 36V and offers a precise voltage reference of 1.24V, making it ideal for power management, voltage regulation, and monitoring applications. The TLVH431B is housed in a compact SOT-23-3 package and is known for its excellent temperature stability and low drift characteristics, ensuring reliable performance across different environmental conditions.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Reference Voltage | 1.24V ±1% | V |
| Operating Voltage Range | 2.5V to 36V | V |
| Output Noise | 30 µV | V |
| Adjustable Output Voltage | 2.5V to 36V | V |
| Temperature Coefficient | 50 ppm/°C | ppm/°C |
| Quiescent Current | 100 µA | A |
| Package | SOT-23-3 | |
| Output Impedance | 50 KΩ | Ω |
| Response Time | 1 µs | s |
| Maximum Output Current | 100 mA | A |
Key Features
- Precision Voltage Reference: 1.24V ±1%
- Wide Operating Voltage Range: 2.5V to 36V
- Low Output Noise: 30 µV
- Adjustable Output Voltage: 2.5V to 36V
- Temperature Coefficient: 50 ppm/°C
- Low Quiescent Current: 100 µA
- Available in SOT-23-3 Package
- High Output Impedance: 50 KΩ
- Fast Response Time: 1 µs
Applications
- Power Supply Regulation
- LED Drivers
- Battery Chargers
- Voltage References in Analog Circuits
- Switching Power Supplies
- Industrial Power Management Systems
- Telecommunication Equipment
- Consumer Electronics
- Sensors and Data Acquisition Systems
Q & A
- What is the maximum output current capability of the TLVH431B?
The TLVH431B can handle a maximum output current of approximately 100 mA.
- Can the TLVH431B be used for battery-operated devices?
- What are the thermal characteristics of the TLVH431B?
The device operates efficiently in a wide temperature range, with its temperature coefficient being only 50 ppm/°C.
- Is a bypass capacitor required for stability?
While not strictly necessary, adding a bypass capacitor at the output can significantly improve transient response and stability.
- Where can I find additional application circuits for the TLVH431B?
Application circuits and design notes are available in the manufacturer’s datasheet and online resources.
- What is the package type of the TLVH431BIDBZRG4?
The TLVH431BIDBZRG4 is housed in a SOT-23-3 package.
- What is the reference voltage of the TLVH431B?
The reference voltage is 1.24V ±1%.
- How does the TLVH431B regulate the output voltage?
The device operates based on a feedback mechanism that stabilizes the output voltage by adjusting its internal reference voltage accordingly.
- What are some alternative models to the TLVH431BIDBZRG4?
Alternative models include LM431, TL431, LMV431, BZX55, and LT1021.
- What is the typical response time of the TLVH431B?
The response time is 1 µs.
