LT8390EFE

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LT8390EFE

+BOM

IC REG CTRLR BUCK/BOOST

365 1일 품질 보증

7*24 영업 시간 서비스 보증

90-판매 후 1일 보증

정품 보증

사양

속성 가치
Package Tube
ProductStatus Obsolete
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
MountingType Surface Mount
Package/Case 28-TSSOP (0.173, 4.40mm Width) Exposed Pad

개요

Description

The LT8390EFE is a versatile, synchronous 4-switch buck-boost controller designed by Analog Devices. It's specifically engineered for LED driver applications, providing a seamless transition between buck (step-down) and boost (step-up) modes. This device is capable of delivering constant current and constant voltage regulation, making it ideal for driving LEDs with precision and efficiency.
Key features of the LT8390EFE include a wide input voltage range, which allows it to operate in a variety of power supply environments. It supports input voltages from 4V to 60V and can deliver output voltages ranging from 0V to 60V. The controller is equipped with analog and PWM dimming capabilities, enabling fine control of LED brightness.
Additionally, the LT8390EFE offers protection features such as overvoltage, overcurrent, and thermal shutdown, enhancing overall reliability. Its synchronous design contributes to high efficiency, while the 4-switch topology ensures smooth transitions between operating modes. These attributes make the LT8390EFE an excellent choice for applications requiring dynamic power management and robust LED control.

Equivalent

The LT8390EFE is a LED driver IC developed by Analog Devices (formerly Linear Technology). Equivalent products may include:
1. Texas Instruments LM3429: A high brightness LED driver.
2. Maxim Integrated MAX16834: A high-power LED driver with integrated MOSFET.
3. Infineon ILD2111: A versatile LED driver for high-power applications.
When selecting an equivalent, ensure compatibility with your specific application requirements regarding input voltage, current capability, and additional features.

Features

The LT8390EFE is a versatile, high-performance DC/DC controller designed by Analog Devices for applications requiring efficient power conversion. Key features include:
1. Wide Input Voltage Range: Supports 4.0V to 60V, making it suitable for a variety of power supply inputs.

2. Output Capability: Provides a wide output range up to 60V, capable of delivering power in buck, boost, or buck-boost configurations.
3. High Efficiency: Offers high efficiency across broad load conditions, maximizing power usage and minimizing heat.
4. Adjustable Switching Frequency: Features a programmable frequency from 150kHz to 650kHz to optimize size and efficiency trade-offs.
5. Four-Switch Architecture: Utilizes a four-switch synchronous buck-boost topology for seamless operation through different voltage conditions.
6. Integrated Protection: Includes overvoltage, overcurrent, and thermal shutdown protections to enhance reliability.
7. User-Friendly Interface: Provides an easily configurable design via external components for various applications.
These features make the LT8390EFE ideal for automotive, industrial, and battery-powered systems requiring robust and adaptable power management solutions.

Pinout

The LT8390EFE is a synchronous 4-switch buck-boost LED driver controller from Analog Devices. It comes in a 28-pin TSSOP (Thermally Enhanced Thin Shrink Small Outline Package). This device is designed for applications requiring a consistent LED current across a wide range of input and output voltages, making it suitable for automotive, industrial, and battery-powered systems.
Key functions of the LT8390EFE include:
1. Buck-Boost Regulation: It maintains LED current regulation over a wide range of input and output voltages.
2. Synchronous Operation: Ensures high efficiency by using four switches in a synchronous rectification topology.
3. PWM Dimming: Provides PWM dimming capability for LED brightness control.
4. Current Regulation: Delivers accurate LED current control with the help of a high-side current sense.
5. Fault Protection: Features such as overvoltage, overcurrent, and overtemperature protection ensure robust operation.
The LT8390EFE is ideal for applications needing efficient and flexible LED driving capabilities across varying voltage conditions.

Manufacturer

The LT8390EFE is manufactured by Analog Devices, Inc. Analog Devices is a multinational semiconductor company known for designing and manufacturing a broad range of integrated circuits used in electronic equipment. The company specializes in data conversion and signal processing technology, including analog, mixed-signal, and digital signal processing (DSP) integrated circuits. Analog Devices serves various industries, such as automotive, communications, industrial, healthcare, and consumer electronics.

Application

The LT8390EFE is a versatile DC/DC controller used in various applications due to its ability to operate in buck, boost, or buck-boost modes. Key application areas include:
1. LED driver systems, where it provides high efficiency and precise control over LED current.
2. Battery-powered devices, offering efficient power management and extended battery life.
3. Automotive systems, providing reliable power conversion with enhanced thermal performance.
4. Industrial applications requiring robust power supply solutions under varying input and output conditions.
5. Telecommunications and networking equipment, where its wide input voltage range and high efficiency are particularly advantageous.
These features make it suitable for a broad range of power management applications.

Package

The LT8390EFE is available in a 28-lead TSSOP (Thermal Enhanced Thin Shrink Small Outline Package) with exposed pad for improved thermal performance.

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