LM4128DMF-4.1

Noise - 0.1Hz to 10Hz:	350µVp-p
Base Part Number:	LM4128
Supplier Device Package:	SOT-23-5
Package / Case:	SC-74A, SOT-753
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Current - Supply:	100µA
Voltage - Input:	4.496 V ~ 5.5 V
Noise - 10Hz to 10kHz:	--
Series:	--
Temperature Coefficient:	100ppm/°C
Tolerance:	±1%
Current - Output:	20mA
Voltage - Output (Min/Fixed):	4.096V
Output Type:	Fixed
Reference Type:	Series
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Introduction

The LM4128DMF-4.1 is a PMIC (Power Management Integrated Circuit) specifically designed to function as a voltage reference – a voltage-regulating device widely used in active power supplies, motor control systems and other related applications. It is a high-performance, low-cost solution, providing stability and reliability to modern power system designs. The LM4128DMF-4.1 is an indispensable part of many complex power supplies, motor control systems and other related industrial products.

Applications

In a typical application, the LM4128DMF-4.1 will be used to regulate voltage in an active power supply, motor control system, or other distributed power system. The LM4128DMF-4.1 is designed to maintain voltage levels across its specified output range, regardless of environmental conditions or load fluctuations. This makes it an ideal solution for a variety of systems, such as precision power supply regulators, motor control systems, and systems with large numbers of switches and relays.Using the LM4128DMF-4.1, designers can build stable, reliable power supply systems with no external components or voltage reference modules. This allows for smaller, simpler designs that are more economical to manufacture. In addition to its use in active power supplies and motor control systems, the LM4128DMF-4.1 is also suitable for many other applications such as intelligent lighting systems and embedded processor and controller applications.

Working Principle

The LM4128DMF-4.1 is an integrated voltage reference chip that provides precision accuracy and stability. The chip contains several built-in features, including a wide input voltage range (1.2V to 7.5V), a low voltage dropout design, and high output current capacity (up to 200mA).The LM4128DMF-4.1 works by regulating the voltage across a load using two internal voltage comparators, one for the set point and the other for the output voltage. As the load or input voltage changes, the LM4128DMF-4.1 actively adjusts its output voltage to stay within a specified range, ensuring the desired output voltage is maintained.The LM4128DMF-4.1 also contains integrated protection circuitry, including an over-voltage, over-current, and reverse-polarity protection, ensuring the system is safely operated. The adjustable-set point voltage and output voltage levels can be programmed using two external resistors, allowing for flexibility and easy system optimization.

Conclusion

In summary, the LM4128DMF-4.1 is a high-performance, low-cost voltage reference specifically designed for use in active power supplies, motor control systems, and other related applications. The chip offers a wide input voltage range, high output current capacity, and integrated protection circuitry. It can be programmed using external resistors for extra flexibility, allowing for the desired voltage levels to be maintained. The LM4128DMF-4.1 is an indispensable part of many complex power supplies, motor control systems and other related industrial products.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description