仕様
| 属性 | 値 |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Active |
| Function | Step-Up, Step-Up/Step-Down |
| Output Configuration | Positive |
| Topology | Boost, Flyback, SEPIC |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 1.5V |
| Voltage - Input (Max) | 60V |
| Voltage - Output (Min/Fixed) | 1.5V |
| Voltage - Output (Max) | 83V |
| Current - Output | 1.63A (Switch) |
| Frequency - Switching | 100kHz ~ 2.2MHz |
| Synchronous Rectifier | No |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount |
概要
Description
The LM51581RTER is a high-performance, synchronous boost controller designed by Texas Instruments. It is typically used in power supply applications where voltage needs to be increased efficiently. The device supports a wide input voltage range and is optimized for automotive systems, industrial applications, and other environments requiring both robustness and efficient power management.
Key features of the LM51581RTER include its ability to operate with a single power supply, synchronous rectification for improved efficiency, and a programmable switching frequency that allows designers to optimize their power supply's performance. The controller also offers protections like overvoltage, overcurrent, and thermal shutdown to ensure safety and reliability.
This device is particularly suitable for applications requiring high power density and efficiency, such as inverters, battery-powered equipment, and large LED displays. The LM51581RTER's compact design and advanced features make it an attractive choice for engineers looking to design compact, reliable power supply circuits.
Key features of the LM51581RTER include its ability to operate with a single power supply, synchronous rectification for improved efficiency, and a programmable switching frequency that allows designers to optimize their power supply's performance. The controller also offers protections like overvoltage, overcurrent, and thermal shutdown to ensure safety and reliability.
This device is particularly suitable for applications requiring high power density and efficiency, such as inverters, battery-powered equipment, and large LED displays. The LM51581RTER's compact design and advanced features make it an attractive choice for engineers looking to design compact, reliable power supply circuits.
Equivalent
Equivalent products to the LM51581RTER chip, a boost controller by Texas Instruments, include:
1. Maxim Integrated's MAX1771.
2. Analog Devices' LT3757.
3. ON Semiconductor's NCP3063.
4. Microchip's MCP1650.
These alternatives offer similar functionalities, but it is important to compare specific features like voltage ratings, switching frequency, and application requirements to ensure compatibility.
1. Maxim Integrated's MAX1771.
2. Analog Devices' LT3757.
3. ON Semiconductor's NCP3063.
4. Microchip's MCP1650.
These alternatives offer similar functionalities, but it is important to compare specific features like voltage ratings, switching frequency, and application requirements to ensure compatibility.
Features
The LM51581RTER is a high-performance, automotive-grade boost controller. It features wide input voltage range support, typically from 3.5V to 42V, which makes it highly versatile for various applications. The device integrates a low-side N-channel MOSFET driver and supports both non-synchronous and synchronous boost configurations. It provides high efficiency across load conditions due to adaptive ON-time control. This controller includes features such as programmable switching frequency, which can be set from 100 kHz to 2.2 MHz, allowing for flexibility in optimization between size and efficiency. Additionally, it offers adjustable soft-start to reduce inrush current during power-up, and an internal compensation network for improved transient response. Protection features include cycle-by-cycle current limiting, thermal shutdown, and undervoltage lockout (UVLO). The LM51581RTER is designed to meet automotive standards, making it suitable for automotive and industrial applications where reliability and performance are critical. It is available in a thermally enhanced 16-pin VQFN package, facilitating compact and efficient PCB designs.
Pinout
The LM51581RTER is a 16-pin device, packaged in a WQFN (RTE) configuration. It is a boost controller from Texas Instruments, designed for high-efficiency conversion and optimized for a wide input voltage range.
Key functions of the LM51581RTER include:
1. Boost Converter: It regulates output voltage by stepping up the input voltage.
2. Wide Input Voltage Range: Supports a broad range of input voltages for various applications.
3. Integrated Synchronous Rectification: Improves efficiency by reducing diode conduction losses.
4. Adjustable Switching Frequency: Allows optimization of performance and efficiency.
5. Protection Features: Includes overcurrent protection, thermal shutdown, and soft-start.
6. Synchronization Capability: Allows synchronization with an external clock for noise-sensitive applications.
These features make the LM51581RTER suitable for applications such as battery-powered systems, automotive power supplies, and industrial power management.
Key functions of the LM51581RTER include:
1. Boost Converter: It regulates output voltage by stepping up the input voltage.
2. Wide Input Voltage Range: Supports a broad range of input voltages for various applications.
3. Integrated Synchronous Rectification: Improves efficiency by reducing diode conduction losses.
4. Adjustable Switching Frequency: Allows optimization of performance and efficiency.
5. Protection Features: Includes overcurrent protection, thermal shutdown, and soft-start.
6. Synchronization Capability: Allows synchronization with an external clock for noise-sensitive applications.
These features make the LM51581RTER suitable for applications such as battery-powered systems, automotive power supplies, and industrial power management.
Manufacturer
The LM51581RTER is manufactured by Texas Instruments Incorporated. Texas Instruments, commonly known as TI, is a global semiconductor company headquartered in Dallas, Texas. It is one of the largest manufacturers of semiconductors and a leading producer of analog chips and embedded processors. The company designs and produces a wide range of electronic products and technologies that are used in a variety of applications, including industrial, automotive, personal electronics, and communications equipment. TI is known for its innovation in the electronics industry and its contributions to advancements in technology.
Application
The LM51581RTER is a wide-input voltage, non-synchronous boost controller typically used in applications requiring efficient step-up voltage conversion. Its application areas include:
1. Automotive Systems: Provides power for components requiring voltages higher than the automotive battery can supply.
2. Industrial Equipment: Supports power conversion in machinery needing stable high voltage outputs.
3. Consumer Electronics: Used in devices that require efficient power management and conversion.
4. Telecommunications: Powers infrastructure equipment with varying input voltages.
5. Battery-Powered Devices: Extends battery life by efficiently boosting voltage levels for specific components.
Its high efficiency and wide input voltage range make it suitable for various power supply designs.
1. Automotive Systems: Provides power for components requiring voltages higher than the automotive battery can supply.
2. Industrial Equipment: Supports power conversion in machinery needing stable high voltage outputs.
3. Consumer Electronics: Used in devices that require efficient power management and conversion.
4. Telecommunications: Powers infrastructure equipment with varying input voltages.
5. Battery-Powered Devices: Extends battery life by efficiently boosting voltage levels for specific components.
Its high efficiency and wide input voltage range make it suitable for various power supply designs.
Package
The LM51581RTER is available in a WQFN (Wettable Flank Quad Flat No-Lead) package. This type of package is compact and suitable for applications requiring efficient thermal and electrical performance.
