LT8390EFE#PBF

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LT8390EFE#PBF

IC REG CTRLR BUCK/BOOST 28TSS

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規格

Package Tube
ProductStatus Active
OutputType Transistor Driver
Function Step-Up/Step-Down
OutputConfiguration Positive
Topology Buck-Boost
NumberofOutputs 1
OutputPhases 1
Voltage-Supply(Vcc/Vdd) 4V ~ 60V
Frequency-Switching 190kHz ~ 630kHz
DutyCycle(Max) 95%
SynchronousRectifier Yes
ClockSync Yes
ControlFeatures Current Limit, Frequency Control, Soft Start
OperatingTemperature -40°C ~ 125°C (TJ)
MountingType Surface Mount
Package/Case 28-TSSOP (0.173, 4.40mm Width) Exposed Pad

概述

Description

The LT8390EFE#PBF is a versatile, high-performance DC/DC controller designed by Analog Devices. It is specifically used for LED driver applications, offering a wide input voltage range from 4V to 60V, making it suitable for various power sources, including automotive, industrial, and battery-powered systems. The LT8390 supports multiple topologies, including buck, boost, buck-boost, and SEPIC, enhancing its adaptability for different circuit requirements.
One of its key features is the ability to control the output current and voltage precisely, which is crucial for driving high-brightness LEDs efficiently. It integrates a power-switching controller with peak current mode control and spread spectrum frequency modulation to reduce electromagnetic interference (EMI). Additionally, the device includes features like PWM dimming, fault protection, and a programmable switching frequency.
The LT8390EFE#PBF operates in temperatures ranging from -40°C to 125°C, ensuring reliability in harsh conditions. Its package, a thermally enhanced TSSOP, promotes effective heat dissipation, which is essential for high-power applications. Overall, the LT8390 is an excellent choice for advanced LED lighting solutions that demand flexibility, efficiency, and robust performance.

Features

The LT8390EFE#PBF is a synchronous 4-switch buck-boost LED driver controller from Analog Devices. It is designed to drive high current LEDs efficiently across a wide range of input and output voltages. Key features include:
1. Wide Input Voltage Range: Supports 4.5V to 60V, making it suitable for automotive, industrial, and battery-powered applications.
2. Output Voltage Range: Capable of delivering from 0V to 60V.
3. Constant-Current and Constant-Voltage Regulation: Offers precise LED current regulation and output voltage control.
4. Adjustable Switching Frequency: Can be set between 600kHz and 2MHz to optimize efficiency and minimize external component size.
5. 4-Switch Buck-Boost Topology: Allows seamless transition between buck and boost modes, enhancing efficiency and flexibility.
6. Spread Spectrum Frequency Modulation: Reduces electromagnetic interference (EMI) emissions.
7. Fault Protection Features: Includes overvoltage, overcurrent, and overtemperature protection for reliable operation.
8. PWM Dimming and Analog Dimming: Offers versatile options for LED brightness control.
9. High Efficiency: Due to its synchronous design, it achieves high efficiency in both buck and boost modes.
These features make the LT8390EFE#PBF a versatile and efficient solution for driving LEDs in a variety of demanding applications.

Package

The LT8390EFE#PBF is a step-up/step-down LED driver controller in a TSSOP (Thermally Enhanced Thin Shrink Small Outline Package) package with 28 leads. This package type is designed for efficient thermal performance and compactness, suitable for applications requiring precise LED current regulation.

Pinout

The LT8390EFE#PBF is a synchronous 4-switch buck-boost LED driver controller manufactured by Analog Devices. It is designed for applications that require a constant current source and can operate in buck, boost, or buck-boost modes depending on the input and output conditions.
This device is housed in a 28-lead TSSOP (Thin Shrink Small Outline Package) with an exposed pad for better thermal performance. The package is identified as "EFE" in the part number, indicating the specific pin configuration and package style.
Key features of the LT8390 include:
- Wide input voltage range: 4.5V to 60V
- Wide output voltage range: up to 60V
- Adjustable switching frequency: 600kHz to 2MHz
- Programmable LED current
- PWM dimming and analog dimming
- Built-in protection features such as overvoltage, overcurrent, and thermal shutdown
The LT8390 is suitable for various LED driver applications, including automotive lighting, industrial lighting, and large LED displays, given its versatility and robust features.

Manufacturer

The LT8390EFE#PBF is manufactured by Analog Devices, Inc. Analog Devices is a multinational semiconductor company that specializes in the design and manufacturing of analog, mixed-signal, and digital signal processing (DSP) integrated circuits (ICs). The company caters to a wide range of industries, including automotive, communications, healthcare, industrial, and consumer electronics, providing components that are crucial for signal processing and power management in electronic devices.

Application

The LT8390EFE#PBF is a versatile DC/DC converter suitable for various applications, including automotive lighting, battery-powered systems, and industrial LED lighting. It supports buck, boost, and buck-boost topologies, making it ideal for systems requiring wide input voltage ranges. Additionally, it is used in battery charging and discharging applications, where precise current regulation is crucial. Its wide input and output voltage range, high efficiency, and robust feature set make it suitable for demanding environments found in automotive, industrial, and general-purpose power management applications.

Equivalent

The LT8390EFE#PBF is a synchronous buck-boost DC/DC controller from Analog Devices. Equivalent products from other manufacturers may include:
1. Texas Instruments LM5176: A 4-switch buck-boost controller.
2. Maxim Integrated MAX25431: Automotive grade buck-boost controller.
3. Infineon TLE8396: Automotive buck-boost controller.
These alternatives offer similar functionalities but always check specific electrical and thermal requirements to ensure compatibility.

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