LM385M3-2.5/NOPB

Product Overview

Category

The LM385M3-2.5/NOPB belongs to the category of voltage references.

Use

It is commonly used as a precision shunt regulator in various electronic circuits.

Characteristics

• Voltage reference accuracy: ±2.5%
• Low temperature coefficient: 20 ppm/°C
• Low dynamic impedance: 0.2 Ω
• Wide operating current range: 10 µA to 20 mA
• Low power consumption: 60 µA typical
• Operating temperature range: -40°C to +85°C

Package

The LM385M3-2.5/NOPB is available in a small SOT-23 package, which is suitable for surface mount applications.

Essence

The essence of LM385M3-2.5/NOPB lies in its ability to provide a stable and accurate voltage reference, ensuring precise operation of electronic circuits.

Packaging/Quantity

The LM385M3-2.5/NOPB is typically packaged in reels or tubes, with a quantity of 3000 units per reel/tube.

Specifications

• Output voltage: 2.5 V
• Initial accuracy: ±2.5%
• Temperature coefficient: 20 ppm/°C
• Supply voltage range: 1.9 V to 20 V
• Quiescent current: 60 µA typical
• Dynamic impedance: 0.2 Ω
• Operating temperature range: -40°C to +85°C

Detailed Pin Configuration

The LM385M3-2.5/NOPB has three pins:

1. Vout: Output pin, provides a stable 2.5 V reference voltage.
2. GND: Ground pin, connected to the circuit ground.
3. Vin: Input pin, connected to the supply voltage.

Functional Features

• Precise voltage reference: The LM385M3-2.5/NOPB ensures a stable and accurate 2.5 V reference voltage.
• Low temperature coefficient: With a temperature coefficient of 20 ppm/°C, it maintains stability over a wide temperature range.
• Wide operating current range: It can operate with a current ranging from 10 µA to 20 mA, making it suitable for various applications.
• Low power consumption: The LM385M3-2.5/NOPB consumes only 60 µA of quiescent current, minimizing power consumption in electronic circuits.

Advantages and Disadvantages

Advantages

• High accuracy and stability
• Wide operating current range
• Low power consumption
• Small package size for space-constrained applications

Disadvantages

• Limited output voltage options (only 2.5 V)
• Relatively higher initial accuracy compared to some other voltage references

Working Principles

The LM385M3-2.5/NOPB is based on a bandgap voltage reference circuit. It utilizes the temperature-dependent characteristics of semiconductor materials to generate a stable reference voltage. By carefully designing the circuit, the LM385M3-2.5/NOPB achieves high accuracy and low temperature coefficient.

Detailed Application Field Plans

The LM385M3-2.5/NOPB finds applications in various fields, including:

1. Precision analog circuits: It provides a stable voltage reference for precise measurements and signal conditioning.
2. Power management systems: It ensures accurate voltage regulation in power supplies and battery charging circuits.
3. Industrial control systems: It is used in control loops and feedback circuits to maintain stability and accuracy.
4. Automotive electronics: It is employed in automotive sensors, instrumentation, and control modules for reliable operation.

Detailed and Complete Alternative Models

1. LM4040: A series of precision voltage references with different output voltages and package options.
2. LT6654: Ultra-precision voltage reference with extremely low temperature coefficient and high accuracy.
3. REF50xx: High-precision voltage references with various output voltage options and low power consumption.

These alternative models offer similar functionality to the LM385M3-2.5/NOPB, providing accurate voltage references for different applications.

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