LT8390EFE#PBF

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LT8390EFE#PBF

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IC REG CTRLR BUCK/BOOST 28TSS

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Thông số kỹ thuật

thuộc tính Giá trị
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

Tổng quan

Description

The LT8390EFE#PBF is a versatile, synchronous buck-boost DC/DC controller manufactured by Analog Devices. It is designed to regulate output voltage efficiently across a wide range of input and output conditions, making it suitable for various automotive and industrial applications. The device can seamlessly transition between buck, boost, and buck-boost modes, ensuring consistent performance even when the input voltage is above, below, or equal to the output voltage.
Key features of the LT8390EFE#PBF include a wide input voltage range from 4V to 60V and output voltage capability from 0V to 60V. It supports both analog and digital PWM dimming, making it ideal for LED driver applications. The controller operates at a fixed frequency, which is programmable between 150kHz and 650kHz, and it employs spread spectrum frequency modulation to minimize electromagnetic interference (EMI).
The LT8390EFE#PBF is housed in a thermally enhanced TSSOP package, ensuring efficient heat dissipation. It incorporates various protection features, such as overvoltage, overcurrent, and overtemperature protection, enhancing its reliability in demanding environments.

Equivalent

The LT8390EFE#PBF is a DC/DC LED driver and buck-boost controller. Equivalent products include:
1. Maxim Integrated's MAX25612: A synchronous buck-boost controller for LED drivers.
2. Texas Instruments' LM5175: A 4-switch buck-boost controller.
3. Analog Devices' LTC3789: A high-performance buck-boost controller.
4. Infineon's TLD5542-1: A synchronous buck-boost LED driver IC.
These alternatives offer similar functionality and can be used in LED driver applications. Always check specifications for compatibility.

Features

The LT8390EFE#PBF is a versatile synchronous buck-boost DC/DC controller designed for LED driver applications. Its key features include:
1. Wide Input Voltage Range: It operates from 4.5V to 60V, making it suitable for automotive and industrial applications.
2. Output Flexibility: The controller can deliver output voltages above, below, or equal to the input voltage.
3. Constant-Current and Constant-Voltage Regulation: Ensures accurate LED current regulation and stable operation.
4. High Efficiency: Synchronous operation enhances efficiency, reducing power loss.
5. Four-Switch Architecture: It maximizes power conversion efficiency across a wide range of input and output conditions.
6. Adjustable Switching Frequency: Programmable from 150kHz to 650kHz to optimize efficiency and external component size.
7. Integrated Fault Protection: Features include overvoltage, overcurrent, and overtemperature protection to enhance reliability.
8. PWM Dimming Capability: Allows for flexible brightness control of LEDs.
9. Compact Package: Offered in a thermally enhanced 28-lead TSSOP package, which supports efficient heat dissipation.
These features make the LT8390EFE#PBF an excellent choice for robust and efficient LED lighting solutions.

Pinout

The LT8390EFE#PBF is a versatile DC/DC LED driver controller designed for automotive, industrial, and general lighting applications. It operates over a wide input voltage range and can drive LEDs in buck, boost, buck-boost, or SEPIC configurations.
The LT8390EFE#PBF comes in a 28-pin TSSOP package with the following key functions:
1. VIN and GND: Power supply input and ground reference.
2. VOUT: Connects to the output voltage.
3. CTRL1/CTRL2: Analog or PWM dimming control inputs.
4. ISP/ISN: Sense inputs for output current regulation.
5. INP/INN: Inputs for differential feedback.
6. SW1/SW2: Connect to the switching nodes of the external inductor.
7. VC: Compensation pin for loop stability.
8. SS: Soft-start control.
9. SYNC/SPRD: Synchronization and spread spectrum control.
10. RT: Sets the switching frequency.
11. FB: Feedback input for voltage regulation.
12. FAULT: Fault indicator output.
13. MODE: Selects operating mode.
This IC features robust protections and efficiency-enhancing functionalities, making it a reliable choice for LED driving solutions.

Manufacturer

The LT8390EFE#PBF is manufactured by Analog Devices, Inc. Analog Devices is a global semiconductor company that designs, manufactures, and markets a broad portfolio of integrated circuits (ICs) and related products. The company specializes in analog, mixed-signal, and digital signal processing technologies, serving industries such as automotive, communications, consumer electronics, industrial, and healthcare. Known for its high-performance analog technology, Analog Devices focuses on providing solutions for applications that require precision measurement, signal processing, and power management.

Application

The LT8390EFE#PBF is a versatile LED driver IC used in various applications. Key application areas include automotive and industrial lighting systems, where it supports high-performance, high-power LED arrays. It's also used in architectural lighting for dynamic and flexible lighting designs. The IC is suitable for battery-powered devices due to its high efficiency, making it ideal for portable lighting. Additionally, it's used in street lighting, backlighting for displays, and general-purpose illumination. Its ability to handle multiple topologies (buck, boost, buck-boost) and wide input/output voltage ranges makes it adaptable for diverse lighting configurations.

Package

The LT8390EFE#PBF is an IC produced by Analog Devices, packaged in a TSSOP (Thin Shrink Small Outline Package) with 28 pins. It is designed for LED driver applications, offering versatility in boost, buck, and buck-boost configurations.

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