Texas Instruments

LM3402MRX/NOPB  

External/Internal LED Drivers

The LM3402MRX/NOPB is a high-performance, fixed-gain, step-up/step-down ideal diode controller from Texas Instruments. It is designed to provide efficient power conversion in a wide range of applications, including battery-powered systems, portable devices, and power supplies.

Description:

The LM3402MRX/NOPB is a highly integrated power management device that combines a step-up/step-down converter with an ideal diode controller. It features a fixed-gain architecture, which simplifies the design and reduces component count. The device is available in a small, thermally enhanced 10-pin MSOP package, making it suitable for space-constrained applications.

Features:

1. High efficiency: The LM3402MRX/NOPB offers high efficiency in both step-up and step-down modes, with typical efficiencies of up to 95%.
2. Fixed-gain architecture: The device features a fixed-gain architecture, which simplifies the design and reduces the number of external components required.
3. Wide input voltage range: The LM3402MRX/NOPB can operate with input voltages from 2.5V to 5.5V, making it suitable for a wide range of applications.
4. Low quiescent current: The device has a low quiescent current of 35µA in step-up mode and 45µA in step-down mode, which helps to extend battery life in portable applications.
5. Soft-start function: The LM3402MRX/NOPB includes a soft-start function to minimize inrush current and reduce output voltage overshoot during startup.
6. Over-current protection: The device provides over-current protection to prevent damage to the output components in case of a short circuit or overload condition.
7. Thermal shutdown: The LM3402MRX/NOPB features thermal shutdown protection to prevent damage due to overheating.

Applications:

1. Portable devices: The LM3402MRX/NOPB is ideal for use in battery-powered portable devices, such as smartphones, tablets, and wearable devices, where efficiency and space are critical.
2. Power banks: The device can be used in power banks to efficiently step up the voltage from a low-voltage battery to charge external devices.
3. Power supplies: The LM3402MRX/NOPB can be used in power supply applications, such as wall adapters and USB power delivery, to provide efficient voltage conversion.
4. LED lighting: The device can be used in LED lighting applications to efficiently convert input voltage to the required output voltage for driving LEDs.
5. Industrial systems: The LM3402MRX/NOPB can be used in industrial systems, such as sensors and control modules, where efficient power conversion and a wide input voltage range are required.

In summary, the LM3402MRX/NOPB from Texas Instruments is a versatile and efficient power management device that offers a wide range of features and applications. Its fixed-gain architecture, high efficiency, and low quiescent current make it an excellent choice for a variety of power conversion applications.

LM3402MRX/NOPB Documents

Download datasheets and manufacturer documentation for LM3402MRX/NOPB

Datasheets :

LM3402/02HV      

Reference Design Library :

LM3402 #4: 1 LED @ 200 mA, 6 ~ 40V In      

Design Resources :

LM3402 Design with WEBENCH® Power Designer       Lighting Product Selector      

HTML Datasheet :

LM3402/02HV      

PCN Design/Specification :

Cu Wire 21/Mar/2017