LM3488MM

Imagens apenas para referência

LM3488 2.97V TO 40V WIDE VIN LOW

365 Garantia de Qualidade em 1 dia

7*24 Garantia de serviço em 24 horas

90-Garantia de pós-venda em 1 dia

Garantia de Produto Genuíno

Especificações

Atributo Valor
Package Bulk
ProductStatus Active

Visão Geral

Description

The LM3488MM is a versatile, high-efficiency current mode PWM controller designed for step-up (boost), flyback, SEPIC, and inverting power conversion applications. Housed in a small MSOP-8 package, it is ideal for compact designs. The LM3488MM operates over a wide input voltage range from 2.97V to 40V, making it suitable for various consumer electronics, automotive, and industrial applications.
Key features include a high switching frequency up to 1 MHz, which enables the use of smaller external components, leading to space-efficient designs. The device also provides excellent load and line regulation, contributing to stable output performance. An internal 1.5A N-channel MOSFET driver supports high current outputs, enhancing system efficiency. Additional features like adjustable soft-start, cycle-by-cycle current limiting, and thermal shutdown protection ensure reliable and flexible design options.
Overall, the LM3488MM is a robust solution for designers seeking efficient and compact power supply systems across a broad range of applications.

Equivalent

The LM3488MM is a versatile boost/SEPIC/flyback controller. Equivalent products include the LT3758 from Analog Devices, the TPS40210 from Texas Instruments, and the MC34063 from ON Semiconductor. Each of these offers similar functionality for DC-DC conversion applications, though specifications like input voltage range, switching frequency, and efficiency may vary. Always check the datasheet for compatibility with your specific application requirements.

Features

The LM3488MM is a versatile high-efficiency switching regulator controller designed for boost, flyback, SEPIC, and inverting power supply applications. Key features include:
1. Wide Input Voltage Range: Operates from 2.97V to 40V, making it suitable for a broad array of applications.
2. Current Mode Control: Offers excellent line and load regulation, simplifying loop compensation.
3. Adjustable Switching Frequency: Frequency is programmable from 100 kHz to 1 MHz, allowing optimization for efficiency or size.
4. Cycle-by-Cycle Current Limiting: Protects the device and the circuit during overcurrent conditions.
5. Low Shutdown Current: Features a shutdown mode with a typical current draw of 5 µA.
6. Small Package: Available in an 8-pin VSSOP (MM) package, ideal for space-constrained applications.
7. Thermal Shutdown: Protects the device from overheating by disabling the output when the junction temperature exceeds safe levels.
8. High-Voltage Gate Drive: Compatible with various MOSFETs to drive loads effectively.
Overall, the LM3488MM is designed to provide flexibility and high performance in compact, efficient power supply designs.

Pinout

The LM3488MM is a high-efficiency PFET switching regulator controller from Texas Instruments, typically used in boost, SEPIC, and flyback converter applications. It is available in an 8-pin VSSOP package. Here’s a brief overview of its pin functions:
1. SW (Pin 1): Switch node, connected to the source of the PFET.
2. VCC (Pin 2): Output of the internal LDO and supply voltage for the device.
3. FB (Pin 3): Feedback pin for voltage regulation, connected to the output through a resistor divider.
4. COMP (Pin 4): Compensation pin for loop stability.
5. GND (Pin 5): Ground reference for the IC.
6. ISEN (Pin 6): Current sense input, used to limit the peak current.
7. RON (Pin 7): On-time control pin, sets the on-time for the PFET.
8. FA/SYNC (Pin 8): Frequency adjust (FA) and synchronization input for frequency setting and synchronization to an external clock.
These pins work collectively to regulate output voltage and manage the switching operation efficiently.

Manufacturer

The LM3488MM is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company. It designs and manufactures a range of integrated circuits, which are used in electronics applications across the world. TI specializes in analog chips and embedded processors, and its products are utilized in a variety of markets including industrial, automotive, personal electronics, communications, and enterprise systems. The company is known for its innovation in the electronics industry and holds a prominent position in the semiconductor sector.

Application

The LM3488MM is a versatile DC-DC controller used primarily in power management applications. Key areas include:
1. Boost Converters: It can step-up voltages for applications requiring higher output than input.
2. SEPIC (Single-Ended Primary Inductor Converter): Useful in applications demanding both step-up and step-down voltage conversion.
3. Flyback Converters: Employed in isolated power supply designs.
4. Backlight Drivers: Used in driving LEDs for display backlighting.
5. Battery-Powered Systems: Enhances battery life by efficient power conversion.
6. Automotive Electronics: Provides stable power in automotive environments.
These applications take advantage of the LM3488MM's high efficiency, flexibility, and wide input voltage range.

Package

The LM3488MM is a current mode PWM controller with a package type of 8-pin Mini Small Outline Package (MSOP). It's commonly used in boost, SEPIC, and flyback converters, providing efficient power management in compact applications.

Produtos relacionados a LM3488MM