Adjustable shunt voltage regulators for precision reference applications
Manufacturer： ti
# Introduction to the TL1431MJG Product Series
## 1. Overview
The TL1431MJG is a highly versatile and widely - used product series in the field of electronic components. It belongs to the category of adjustable shunt voltage references, which play a crucial role in various electronic circuits by providing a stable and accurate voltage reference. This series is designed to meet the demanding requirements of modern electronic systems, offering excellent performance, reliability, and cost - effectiveness.
## 2. Key Features
### 2.1 Adjustable Output Voltage
One of the most significant features of the TL1431MJG series is its adjustable output voltage. The output voltage can be set within a wide range, typically from 2.5V to 36V. This adjustability makes it suitable for a diverse set of applications where different voltage levels are required. Designers can easily configure the output voltage according to the specific needs of their circuits by using external resistors, providing great flexibility in circuit design.
### 2.2 High Precision
The TL1431MJG offers high precision in voltage regulation. It has a low temperature coefficient, which means that the output voltage remains relatively stable over a wide temperature range. This is essential for applications where accurate voltage references are critical, such as in precision measurement equipment, power supplies, and analog - to - digital converters. The high precision ensures that the performance of the overall system is not affected by temperature variations.
### 2.3 Low Dynamic Output Impedance
This product series has a low dynamic output impedance, which allows it to respond quickly to changes in load current. When the load current fluctuates, the TL1431MJG can maintain a stable output voltage, minimizing voltage drops and ensuring the proper operation of the connected circuits. This characteristic is particularly important in applications with varying load conditions, such as battery - powered devices and switching power supplies.
### 2.4 Low Quiescent Current
The TL1431MJG consumes a low quiescent current, which is beneficial for power - sensitive applications. In battery - operated devices, low quiescent current helps to extend the battery life by reducing the overall power consumption. Even when the device is in standby mode, the power consumption is kept to a minimum, making it an energy - efficient choice for a wide range of applications.
### 2.5 Wide Operating Temperature Range
It can operate within a wide temperature range, typically from - 40°C to 85°C. This wide operating temperature range makes the TL1431MJG suitable for use in harsh environments, such as industrial control systems, automotive electronics, and outdoor equipment. It can withstand extreme temperatures without significant degradation in performance, ensuring reliable operation in various conditions.
## 3. Package and Pin Configuration
The TL1431MJG is available in a standard SOT - 23 package, which is a small - outline surface - mount package. This package offers several advantages, including a small footprint, which is ideal for printed circuit board (PCB) designs where space is limited. The SOT - 23 package also provides good thermal performance, allowing the device to dissipate heat effectively.
The pin configuration of the TL1431MJG is designed for easy integration into circuits. It typically has three pins: the anode (A), the cathode (K), and the reference (R). The anode is connected to the negative supply voltage, the cathode is connected to the positive supply voltage, and the reference pin is used to set the output voltage in conjunction with external resistors.
## 4. Applications
### 4.1 Power Supplies
In power supply circuits, the TL1431MJG is used as a voltage reference to regulate the output voltage. It can be incorporated into both linear and switching power