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LM4040C25QDBZR
Introduction
The LM4040C25QDBZR is a precision voltage reference belonging to the LM4040 series of shunt voltage references. This entry provides an overview of the product, including its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.
Basic Information Overview
- Category: Precision Voltage Reference
- Use: Provides a stable 2.5V output voltage for various applications
- Characteristics: High accuracy, low temperature coefficient, and low dynamic impedance
- Package: SOT-23 package
- Essence: Shunt voltage reference
- Packaging/Quantity: Available in tape and reel packaging with quantities specified by the manufacturer
Specifications
- Output Voltage: 2.5V
- Initial Accuracy: ±0.1%
- Temperature Coefficient: 50ppm/°C (typical)
- Dynamic Impedance: 0.3Ω (typical)
- Operating Temperature Range: -40°C to 125°C
- Supply Voltage Range: 4.5V to 10V
Detailed Pin Configuration
The LM4040C25QDBZR has three pins: 1. V+ (Pin 1): Input voltage 2. Vout (Pin 2): Output voltage (2.5V) 3. GND (Pin 3): Ground
Functional Features
- High Accuracy: Provides a precise 2.5V output voltage with initial accuracy of ±0.1%
- Low Temperature Coefficient: Ensures minimal output voltage variation over temperature changes
- Low Dynamic Impedance: Maintains stability under varying load conditions
Advantages and Disadvantages
Advantages
- Precise and stable output voltage
- Wide operating temperature range
- Small form factor SOT-23 package
Disadvantages
- Limited output voltage options
- Requires external components for specific applications
Working Principles
The LM4040C25QDBZR operates as a shunt voltage reference, utilizing a precision bandgap core to generate a stable 2.5V output voltage. It compares the internal reference voltage with the input voltage to regulate the output voltage.
Detailed Application Field Plans
The LM4040C25QDBZR is suitable for various applications requiring a stable 2.5V reference voltage, including: - Sensor interfaces - Battery management systems - Portable instrumentation - Power supply monitoring circuits
Detailed and Complete Alternative Models
Some alternative models to the LM4040C25QDBZR include: - LM4040AIM3-2.5/NOPB - LM4040CIM3-2.5/NOPB - LM4040D25IDBZT
In summary, the LM4040C25QDBZR is a precision voltage reference offering high accuracy, low temperature coefficient, and low dynamic impedance. Its stable 2.5V output voltage makes it suitable for a wide range of applications, despite having limited output voltage options. Understanding its specifications, pin configuration, functional features, and application field plans can aid in effectively integrating this component into various electronic designs.
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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací LM4040C25QDBZR v technických řešeních
What is the LM4040C25QDBZR?
- The LM4040C25QDBZR is a precision voltage reference diode that provides a stable 2.5V output voltage.
What are the typical applications of LM4040C25QDBZR?
- It is commonly used as a voltage reference in various electronic circuits, such as analog-to-digital converters, power supplies, and sensor interfaces.
What is the operating temperature range of LM4040C25QDBZR?
- The LM4040C25QDBZR can typically operate within a temperature range of -40°C to 125°C.
How accurate is the output voltage of LM4040C25QDBZR?
- The LM4040C25QDBZR has a typical initial accuracy of ±0.5%, making it suitable for precision applications.
Can LM4040C25QDBZR be used in battery-powered devices?
- Yes, the low quiescent current and minimal power consumption make it suitable for battery-powered applications.
Does LM4040C25QDBZR require external components for operation?
- Typically, only a small bypass capacitor is required for stable operation, making it easy to integrate into designs.
Is the LM4040C25QDBZR available in surface-mount packages?
- Yes, it is available in a small SOT-23 package, making it suitable for compact designs and PCB layouts.
What are the key features of LM4040C25QDBZR?
- Some key features include low dynamic impedance, wide operating current range, and excellent temperature stability.
Can LM4040C25QDBZR withstand voltage transients or ESD events?
- It has built-in protection against ESD events and can withstand limited voltage transients, enhancing its robustness in real-world applications.
Are there any application notes or design resources available for LM4040C25QDBZR?
- Yes, Texas Instruments provides comprehensive application notes, datasheets, and design resources to assist engineers in integrating the LM4040C25QDBZR into their technical solutions.