TPS92513HVDGQR IC

Introduction

The world of lighting has witnessed a remarkable evolution, with Light Emitting Diodes (LEDs) emerging as the cornerstone of modern illumination solutions. These energy-efficient and long-lasting sources of light have transformed industries, from automotive to consumer electronics, by offering unprecedented levels of brightness and versatility. At the heart of these innovations lies a critical component – the TPS92513HVDGQR high-current buck regulator.

TPS92513HVDGQR Regulator Overview

The TPS92513HVDGQR is more than just an electric part; it makes it possible to use LEDs in cutting-edge ways. As a high-current buck regulator, it is made to drive high-brightness LEDs efficiently and effectively, making it an important part of getting the best lighting performance. This regulator has a number of traits that make it well-known in its field:

• Efficient Power Conversion: The buck regulator design makes it possible to convert the input voltage to a lower output voltage in a way that wastes the least amount of energy and gets the most out of the LEDs.
• Analog Dimming and Pulse Width Modulation (PWM) Dimming: The TPS92513HVDGQR has both analog dimming and Pulse Width Modulation (PWM) dimming, giving you perfect control over how bright your LEDs are.
• Robust Thermal Management: LED users often make a lot of heat, which can affect how well they work and how long they last. The TPS92513HVDGQR has advanced thermal control features that make sure it works safely even in tough situations.

Key Features

MOSFET Built-In for Driving High-Current LEDs: The TPS92513/HV LED driver has a MOSFET built-in, which makes driving high-current LEDs easier. This integration makes the circuit more efficient and makes it easier to build.

Fixed-Frequency Operation with Control of Peak-Current Mode: The LED drivers work in a fixed-frequency mode with control of peak-current mode. This makes sure that the line and load conditions are regulated in a stable and accurate way, which helps LEDs work the same way every time.

The TPS92513/HV LED driver has two different dimmer inputs: analog and pulse width modulation (PWM). This makes it easier to control the brightness. These choices give you more control over how bright the screen is, with contrast ratios of over 10:1 for analog dimming and over 100:1 for PWM dimming.

• Compatibility with Microcontrollers: The PWM dimming input is suitable with low-voltage logic standards, which makes it easier to connect to a wide range of microcontrollers. This makes it easier to control and integrate things.
• Adjustable Analog LED Current Setpoint: The analog LED current setpoint can be changed from 0 V to 300 mV using the IADJ input, which can take an external 0 V to 1.8 V signal. This function lets you change the brightness levels of LEDs in a very precise way.
• Multi-String Application Support: An external clock can be used to synchronize the internal oscillator for apps that need more than one TPS92513/HV LED driver. This synchronization makes sure that all processors work at the same frequency. This reduces the chance of beat frequencies and makes it easier to filter out electromagnetic interference (EMI) in the system.
• Input Under-Voltage Lockout (UVLO): The TPS92513/HV LED driver has a UVLO with hysteresis that can be adjusted. This function lets you set different start and stop voltages based on the supply voltage, which makes the driver more flexible.
• safety: The TPS92513/HV LED driver has overcurrent safety that works cycle by cycle and thermal shutdown protection. These safety measures make sure that the LED driver and the LED load it is linked to will last and work well.
• Package: The TPS92513/HV LED driver comes in a 10-pin HVSSOP PowerPADTM package, which makes it easy to get rid of heat and allows for small designs.

Advantages of Using Buck Regulators for LED Lighting

To keep the brightness and efficiency of LED lighting systems consistent, the current and voltage must be carefully controlled. Here, buck regulators really shine. Buck controllers have several benefits when used with LED lighting:

• Efficiency: Traditional ways of controlling the amount of current can waste a lot of power. Buck regulators control the amount of current going through the inductor. This cuts down on waste and makes the whole system more efficient.
• The brightness stays the same: LEDs are sensitive to changes in power. Buck regulators give a stable output voltage, so the brightness stays the same even if the input voltage changes.
• Dimming Control: Buck regulators let you use advanced ways to dim, such as analog dimming and PWM dimming. This lets the brightness be changed smoothly and precisely, letting lighting effects change over time.
• Longevity: Efficient power conversion lowers the stress on LEDs, which makes them last longer and less likely to break down too soon.

Dimming Capabilities: Analog and PWM Dimming

The TPS92513HVDGQR enables:

• Analog Dimming: Allows seamless brightness adjustments via analog control signals.
• PWM Dimming: Offers precise, flicker-free brightness control using digital signals.

These dimming options empower designers to create captivating lighting and tailor energy usage for specific needs.

Understanding Analog Dimming

Analog dimming changes the brightness of an LED in a smooth way by changing the output voltage with a steady control signal. This method allows for smooth changes between different levels of brightness, making the image look better and giving it more uses.

Analog Dimming in TPS92513HVDGQR

The TPS92513HVDGQR utilizes analog dimming for precise LED brightness control:

1. Voltage Reference: The regulator incorporates an internal voltage reference generator.
2. Analog Control Signal: An external analog signal (0V to reference voltage) is provided.
3. Error Amplifier: An error amplifier compares the control signal with the reference voltage.
4. Voltage Feedback: The error amplifier adjusts the internal switching duty cycle, changing the LEDs’ output voltage.
5. Brightness Control: Tweaking the control signal smoothly adjusts LED brightness, achieving desired illumination levels.

Voltage Control for Smooth Brightness Adjustments

Continuous voltage adjustment in analog dimming makes sure that changes in brightness are made slowly, which is important for creating nice lighting effects. Analog dimming on the TPS92513HVDGQR lets creators create lighting experiences that are both immersive and unique.

Conclusion

The TPS92513/HV LED driver is a huge step forward in LED lighting technology. With its built-in MOSFET, dual dimming choices, microcontroller compatibility, and support for multi-string applications, it has a lot of advanced features that make it useful for a wide range of lighting applications. The TPS92513/HV LED driver is set to change how high-current LEDs are driven and controlled, whether it’s to get the best brightness-contrast ratios or to make sure that safety mechanisms work well. It works very well, can be changed, and has a lot of features. This makes it a great choice for engineers and designers who want the best LED lighting options.

Contact ICRFQ, China’s top seller of electrical components, for more information and to place an order. Find out how you can use the TPS92513HVDGQR to make better decisions in study, energy management, and other areas.

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