MP3801DH-LF-P

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Introduction

MP3801DH-LF-P is a PMIC – Lighting, Ballast Controllers from Texas Instruments. It is designed for low-cost and easy-to-use circuit to control ballast output and light engine operation for street lamp, tunnel lighting and external lighting industrial applications. Let’s have a deeper look at what MP3801DH-LF-P can do for us and know its working principle.

Features

MP3801DH-LF-P is a low-cost, emerging PMIC that can be used in recent street and tunnel lighting applications. It features an intelligent ballast control that contains a power MOSFET load switch and the current-mode control loop. The driver enables the use of an easy-to-use digital interface to operate the system, allowing either open- or closed-loop control. Additionally, it provides LED light-engine control and protection, further allowing users to design a reliable, safe, and efficient light engine system.

The MP3801DH-LF-P comes with a 16-bit digital user interface, allowing users to easily set the desired output voltage and current. With the Easy-to-use PFC adjuster and Noise Stop modes, it ensures a clearly stable input and nearly zero EMI, making it suitable for street, tunnel, and external lighting applications. Additionally, the device supports sensor-less voltage and current control, greatly extending system lifetime and reducing maintenance efforts.

Working Principle

The MP3801DH-LF-P works by combining a power MOSFET load switch with a current-mode control loop. The closed-loop current limitation is obtained via a pulse-width modulated (PWM) signal generation by the current-feedback loop. The voltage level setting is controlled by a digital user interface. As the current is sampled, the duty cycle of the PWM is matched, hence allowing the device to reach the desired current level. Additionally, the MP3801DH-LF-P also features a voltage control loop with sensor-less voltage/current dynamic feedback control. By comparing the present voltage with the set voltage, the device can automatically adjust the device to the set voltage level.

Conclusion

The MP3801DH-LF-P from Texas Instruments provides an easy-to-use, low-cost PMIC – Lighting, Ballast Controllers with a reliable and safe light engine system design. It is suitable for applications such as street, tunnel, and external lighting. The MP3801DH-LF-P combines a power MOSFET load switch with a current-mode control loop, allowing the device to adjust itself to the desired current level. Additionally, the voltage control loop with sensor-less voltage/current dynamic feedback control lets the device automatically adjust to the set voltage level. With its features and working principle, MP3801DH-LF-P is an ideal choice for your street and tunnel lighting application.

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