LM4050AIM3-2.5 Integrated Circuits (ICs)

Noise - 0.1Hz to 10Hz:	--
Base Part Number:	LM4050
Supplier Device Package:	SOT-23-3
Package / Case:	TO-236-3, SC-59, SOT-23-3
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Current - Cathode:	65µA
Current - Supply:	--
Voltage - Input:	--
Noise - 10Hz to 10kHz:	41µVrms
Series:	--
Temperature Coefficient:	50ppm/°C
Tolerance:	±0.1%
Current - Output:	15mA
Voltage - Output (Min/Fixed):	2.5V
Output Type:	Fixed
Reference Type:	Shunt
Part Status:	Not For New Designs
Packaging:	Tape & Reel (TR)

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Introduction

The LM4050AIM3-2.5 is a micropower voltage reference integrated circuit from Texas Instruments. It is part of the company\'s precision voltage reference family. It is a three-terminal device which can provide absolute accuracy at room temperature, sourced from a single supply rail. It comes in a standard SOT-23 package and is suitable for a wide range of applications like signal conditioning, industrial systems, medical equipment and power supplies. It\'s designed to be used in high-reliability and sensitive measurement systems and applications where a high precision voltage reference is needed.

PMIC - Voltage Reference

The LM4050AIM3-2.5 is a PMIC (Power Management Integrated Circuit) Voltage Reference. It is a type of integrated circuit that provides a constant reference voltage, which can be used as a benchmark against other levels or signals within a system. With the LM4050AIM3-2.5, this can be used to stabilize other instantaneous voltages and provide a precise reference voltage.

Specifications

The LM4050AIM3-2.5 offers a wide range of accuracy options with a low offset and input drift. It has a maximum output voltage of 2.5V with an operating temperature range of -40°C to 125°C. It has a maximum input voltage range of 3V to 24V, and is guaranteed to source and sink at least 2mA. It also offers an output temperature range as low as -60°C to 150°C. Other specifications include a quiescent current of 0.33 µA, a typical load regulation of 15 mV/V, a maximum slew rate of 0.04 V/μs, and an accurate output voltage of up to ±0.04% of the nominal voltage level.

Application Fields

The LM4050AIM3-2.5 voltage reference is suitable for a wide range of applications. It can be used in precision voltage sensing, signal conditioning and industrial systems, power supplies, and medical equipment. It offers precise reference voltages that can be used to accurately regulate other signals within the system. It can also be used in power supplies where a precise reference voltage is needed. It offers high precision voltage measurement in applications where higher accuracy is required. Its low offset and low input drift feature makes it ideal for applications with high temperature operating ranges.

Working Principle

The LM4050AIM3-2.5 voltage reference works on the principle of zener diode forward conduction. When a current is applied across the zener diode and it reaches a certain voltage the conduction path becomes resistive and only allows a certain percentage of the current to flow across it. This is known as the forward conduction voltage. The LM4050AIM3-2.5 uses a zener diode as the sensing element, which is connected to a metal film resistor network. The zener diode forward conduction voltage is then compared to the reference voltage, which is generated by the metal film resistor network. The output voltage is then regulated to the reference voltage level. This voltage reference is adjustable, allowing for the fine tuning of the output voltage level. This is done by adjusting the reference voltage, which in turn adjusts the output voltage.

Conclusion

The LM4050AIM3-2.5 is a PMIC (Power Management Integrated Circuit) voltage reference from Texas Instruments. It is part of the company’s precision voltage reference family and is suitable for various applications like signal conditioning, industrial systems, medical equipment, and power supplies. It offers a low offset and input drift with a high accuracy and stability. The LM4050AIM3-2.5 works on the principle of zener diode forward conduction and uses a zener diode connected to a metal film resistor network as the sensing element. The forward conduction voltage is then compared to the reference voltage, which is generated by the resistor network, and the output voltage is then regulated to the reference voltage level. It is adjustable, allowing for the fine tuning of the output voltage level.

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