Texas Instruments

LM4128DMF-4.1

LM4128DMF-4.1 Description

The LM4128DMF-4.1 is a fixed output voltage reference IC designed by Texas Instruments, offering a highly accurate and stable reference voltage for various power management applications. This device is part of the LM4128 series, known for its precision and reliability. The LM4128DMF-4.1 provides a fixed output voltage of 4.096V with a tight tolerance of ±1%, ensuring precise voltage regulation. It operates within an input voltage range of 4.496V to 5.5V, making it suitable for applications where input voltage variations are minimal.

The IC features a low supply current of 100µA, which is ideal for low-power applications, and it can deliver an output current of up to 20 mA. The temperature coefficient of 100ppm/°C ensures minimal drift over temperature variations, contributing to its stability. The LM4128DMF-4.1 is available in a surface-mount SOT23-5 package, which is compact and suitable for space-constrained designs. It is also packaged in tape and reel (TR) format, facilitating easy integration into automated assembly processes.

LM4128DMF-4.1 Features

• Fixed Output Voltage: 4.096V with a tolerance of ±1%, ensuring high precision.
• Low Supply Current: 100µA, ideal for low-power applications.
• High Output Current: Capable of delivering up to 20 mA, suitable for driving various loads.
• Stable Performance: Temperature coefficient of 100ppm/°C ensures minimal drift over temperature variations.
• Compact Packaging: SOT23-5 surface-mount package, ideal for space-constrained designs.
• Easy Integration: Available in tape and reel (TR) format for automated assembly.
• Regulatory Compliance: REACH unaffected and classified under ECCN EAR99, ensuring compliance with international regulations.

LM4128DMF-4.1 Applications

The LM4128DMF-4.1 is well-suited for a variety of applications where precise voltage references are required. Its low supply current and high output current capabilities make it ideal for battery-operated devices, portable electronics, and other low-power systems. The compact SOT23-5 package allows for easy integration into small form-factor designs, such as wearable devices, IoT sensors, and medical equipment.

Specific use cases include:

• Battery Management Systems: Providing a stable reference voltage for accurate battery monitoring and protection.
• Analog-to-Digital Converters (ADCs): Ensuring precise voltage references for accurate signal conversion.
• Digital-to-Analog Converters (DACs): Delivering stable reference voltages for high-fidelity signal generation.
• Precision Measurement Equipment: Offering reliable voltage references for laboratory and industrial measurement devices.

Conclusion of LM4128DMF-4.1

The LM4128DMF-4.1 from Texas Instruments is a high-performance voltage reference IC that stands out for its precision, stability, and low power consumption. Its ±1% tolerance and 100ppm/°C temperature coefficient make it a reliable choice for applications requiring accurate voltage references. The compact SOT23-5 package and surface-mount technology ensure ease of integration into modern electronic designs. While the product is now obsolete, it remains a benchmark for precision and reliability in voltage reference solutions.