LM3481QMMX/NOPB
Part Number: LM3481QMMX/NOPB
Manufacturer: Texas Instruments
Description: IC REG CTRLR MULT TOP 10MSOP
Shipped from: Shenzhen/HK Warehouse
Stock Available: Check with us
ICRFQ.com - Electronic Components Distributor in China Since 2003
Part Number: LM3481QMMX/NOPB
Manufacturer: Texas Instruments
Description: IC REG CTRLR MULT TOP 10MSOP
Shipped from: Shenzhen/HK Warehouse
Stock Available: Check with us
Datasheet | LM3481QMMX/NOPB datasheet |
---|---|
Category | Integrated Circuits (ICs) |
Family | PMIC – Voltage Regulators – DC DC Switching Controllers |
Manufacturer | Texas Instruments |
Series | Automotive, AEC-Q100 |
Packaging | Tape & Reel (TR) |
Part Status | Active |
Output Type | Transistor Driver |
Function | Step-Up, Step-Up/Step-Down |
Output Configuration | Positive |
Topology | Boost, Flyback, SEPIC |
Number of Outputs | 1 |
Output Phases | 1 |
Voltage – Supply (Vcc/Vdd) | 2.97 V ~ 40 V |
Frequency – Switching | 100kHz ~ 1MHz |
Duty Cycle (Max) | 85% |
Synchronous Rectifier | No |
Clock Sync | Yes |
Serial Interfaces | – |
Control Features | Enable, Frequency Control, Ramp, Soft Start |
Operating Temperature | -40°C ~ 125°C (TJ) |
Package / Case | 10-TFSOP, 10-MSOP (0.118″, 3.00mm Width) |
Supplier Device Package | 10-VSSOP |
The LM3481QMMX/NOPB is a high-performance low-side N-FET controller designed for switching regulators. If you want to properly grasp this device or use it in your projects, this detailed guide will help you make the most of its features and capabilities.
The LM3481QMMX/NOPB is a critical component in power electronics. This device is designed primarily for use in SEPIC, Boost, and Fly back converters, as well as other topologies that need a low-side FET as the primary switch. Let’s look at some of the most important components and functions of this fantastic controller.
Some LM3481 variations, such as the LM3481QMM, are automotive-grade and AEC-Q100 Grade 1 rated. This means they can work in temperatures ranging from -40°C to +125°C, making them suited for use in tough automotive conditions.
The LM3481QMMX/NOPB is available in a 10-lead VSSOP (Very Small Outline Package) that is not only tiny but also simple to use in a variety of applications.
A high-performance internal push-pull driver with a peak current capability of 1A is included in the device. This driver is required for efficient control of the associated FETs and power supply regulation.
The LM3481QMMX/NOPB uses current mode control, which improves bandwidth and transient response. This attribute is critical for preserving stability and precision in a variety of applications.
This controller’s changeable switching frequency, which can be set between 100kHz and 1MHz, is one of its notable features. This adaptability allows you to customize your design to meet the exact requirements of your application.
In every power electronics application, safety is of the utmost importance. To protect your system from any damage, the LM3481QMMX/NOPB includes built-in protection features such as short-circuit protection, thermal shutdown, and overvoltage protection.
The gadget has a power-saving shutdown option that reduces the total supply current to just 5A. This mode is very important for power supply sequencing and energy-efficient operation.
The LM3481QMMX/NOPB minimizes the inrush current at startup by using an inbuilt soft-start feature. This ensures a controlled and smooth power-up process.
The design procedure is simplified by integrated current slope adjustment. You may fine-tune it even further with a single resistor, adapting your solution to the precise needs of your application.
The LM3481QMMX/NOPB is a versatile controller that can be used in a variety of applications. Among the major use cases are:
Let’s take a closer look at the LM3481QMMX/NOPB’s specialized characteristics to get a better understanding of it:
Overvoltage protection is an important safety feature built into the LM3481QMMX/NOPB. Its purpose is to keep the voltage from exceeding a predetermined safe limit. This function is critical for protecting not just the gadget itself, but also all attached circuits.
Voltage spikes or fluctuations can arise in a variety of applications due to external influences or internal system dynamics. Overvoltage protection keeps the device operating within its safe voltage range, lowering the danger of component damage, system instability, or unexpected failures.
Bias voltage is a feature of the LM3481QMMX/NOPB that allows for accurate voltage control. This capability is especially useful in applications where keeping a constant voltage level is crucial.
To satisfy performance or regulatory requirements, certain applications necessitate precise voltage control. Because of the bias voltage function, the LM3481QMMX/NOPB can produce very steady and precisely regulated output voltage, making it suited for applications requiring constant power delivery.
The slope compensation ramp is a distinct and adaptable feature of the LM3481QMMX/NOPB. It can be customized to meet the exact design needs of your application.
Slope compensation is used to improve transient response and compensate for inadequate control loop dynamics. The LM3481QMMX/NOPB allows you the ability to maximize the controller’s performance in your application by allowing fine-tuning of the slope compensation ramp, especially when faced with severe load changes or operating conditions.
The LM3481QMMX/NOPB has several operational modes, each of which serves a specific purpose:
Understanding and successfully exploiting these functional modes is critical for maximizing the performance of the LM3481QMMX/NOPB. You can select the appropriate mode based on the individual operational requirements of your application to ensure efficient power management and control.
The LM3481QMMX/NOPB is a feature-rich controller with sophisticated capability to fulfill a wide range of application requirements. Because it incorporates overvoltage protection, bias voltage management, slope correction, and many operational modes, it is a versatile choice for power electronics designers and engineers. You may assure the stable and effective operation of your power supply systems while adapting them to your specific application demands by utilizing these specialist features.
The LM3481QMMX/NOPB is a versatile and powerful controller that offers a wide range of features for switching regulators. Its compact design, high-performance capabilities, and comprehensive protection features make it a valuable component in various applications, ranging from automotive systems to portable electronics. Understanding its key features and applications will enable you to harness its full potential in your projects, ensuring efficient and reliable power management.
For a more in-depth guide on using the LM3481QMMX/NOPB in your specific application, be sure to refer to the device’s datasheet and application notes provided by the manufacturer. This will help you tailor your design for optimal results and performance.
To delve deeper into the capabilities of this remarkable device, inquire about its functions, or place an order for the LM3481QMMX/NOPB, as well as other electronic components, we invite you to reach out to ICRFQ. As a prominent electronic component distributor based in China, ICRFQ is well-equipped to assist you.
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