Texas Instruments

LM3429MHX/NOPB  

External/Internal LED Drivers

The LM3429MHX/NOPB is a high-performance, low-voltage, step-up/step-down ideal diode controller from Texas Instruments. It is designed to improve the efficiency of energy transfer in various power conversion applications, such as battery charging, DC-DC conversion, and power backup systems.

Description:

The LM3429MHX/NOPB is a highly integrated, low-power solution that provides a flexible and efficient way to manage power in a wide range of applications. It features an internal power MOSFET, which allows for a compact and cost-effective design. The device is available in a small, thermally enhanced 16-pin TSSOP package, making it suitable for space-constrained applications.

Features:

1. Wide input voltage range: The LM3429MHX/NOPB can operate with input voltages ranging from 2.5V to 5.5V, making it suitable for a variety of power sources.
2. High efficiency: The device offers high efficiency (up to 96%) in both step-up and step-down modes, reducing power loss and improving overall system performance.
3. Low quiescent current: The LM3429MHX/NOPB has a low quiescent current (typical 35µA), which helps to minimize power consumption in battery-powered applications.
4. Adjustable output voltage: The output voltage can be easily programmed using an external resistor divider, allowing for a wide range of output voltages (1.2V to 28V) to be achieved.
5. Soft-start and current limit protection: The device includes built-in soft-start and current limit protection features to protect the system from overcurrent and inrush conditions.
6. Power-good indicator: A power-good indicator provides a clear signal when the output voltage is within the specified range, simplifying system integration.
7. Thermal shutdown: The LM3429MHX/NOPB features thermal shutdown protection to prevent damage due to overheating.

Applications:

1. Battery charging systems: The LM3429MHX/NOPB can be used to efficiently charge batteries in a wide range of devices, such as smartphones, tablets, and laptops.
2. DC-DC conversion: The device can be used in various DC-DC conversion applications, including voltage regulation and power management in portable electronics and industrial equipment.
3. Power backup systems: The LM3429MHX/NOPB can be used to manage power in backup systems, such as uninterruptible power supplies (UPS) and emergency lighting systems.
4. Energy harvesting: The device can be used to efficiently manage power in energy harvesting applications, such as solar panels and vibration-based energy converters.
5. LED lighting: The LM3429MHX/NOPB can be used to provide efficient power management in LED lighting systems, improving energy efficiency and extending the life of the LEDs.

In summary, the LM3429MHX/NOPB from Texas Instruments is a versatile and efficient power management solution that can be used in a wide range of applications, from battery charging to energy harvesting. Its high efficiency, low quiescent current, and adjustable output voltage make it an ideal choice for designers looking to optimize power performance in their systems.

LM3429MHX/NOPB Documents

Download datasheets and manufacturer documentation for LM3429MHX/NOPB

Images :

Mechanical Outline Drawing       Function Diagram      

PCN :

Add Cu as Alternative Wire Base Metal for Selected Device(s) (PDF)      

Models :

LM3429MHX/NOPB Symbol & Footprint by SnapMagic      

Product Catalogs :

Power Management Guide 2018 (Rev. R)      

Technical Resources :

LM3429 TINA-TI Transient Reference Design      

SPICE Models :

LM3429 TINA-TI Transient Spice Model       LM3429 PSpice Transient Model (Rev. C)