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LT8390EFE#TRPBF
+БОМIC REG CTRLR BUCK/BOOST 28TSS
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ПроизводительКомпания Analog Devices Inc.
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Мфр. Часть #LT8390EFE#TRPBF
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Лист данных LT8390EFE#TRPBF DataSheet
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Пакет TSSOP-28
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В наличии4670
365 Дни гарантии качества
7*24 часы обслуживания каранти
90-гарантия послепродажного дня
Гарантия подлинного продукта
Спецификации
| Атрибут | Ценность |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| 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 |
Обзор
Description
Key features include wide input voltage range of 4V to 60V, which allows it to handle diverse power sources. Its constant current and constant voltage regulation ensure precise LED brightness and system stability. The LT8390EFE#TRPBF is equipped with programmable switching frequency up to 2MHz, spread spectrum frequency modulation for reduced electromagnetic interference (EMI), and fault protection features like overvoltage, overcurrent, and thermal shutdown.
It operates with high efficiency, typically over 95%, and features synchronization capability with an external clock. The device comes in a thermally enhanced 28-lead TSSOP package, making it suitable for space-constrained applications. Overall, the LT8390EFE#TRPBF is a robust solution for modern LED lighting systems, providing flexibility and reliability.
Equivalent
Features
1. Wide Input Voltage Range: Operates from 4V to 60V, suitable for a variety of power supplies.
2. Buck-Boost Operation: Seamlessly transitions between buck, boost, and buck-boost modes, ensuring consistent LED current delivery even with fluctuating input voltages.
3. High Efficiency: Synchronous rectification maximizes efficiency, reducing power loss.
4. Constant Current and Constant Voltage Regulation: Supports both LED current regulation and output voltage regulation.
5. PWM Dimming: Offers high PWM dimming ratio for precise control over LED brightness.
6. Fault Protection: Includes overvoltage, overcurrent, and overtemperature protection to enhance circuit safety and reliability.
7. Adjustable Switching Frequency: Programmable frequency range from 150kHz to 650kHz to optimize performance for specific applications.
8. Compact Package: Available in a thermally-enhanced 28-lead TSSOP package with exposed pad for improved heat dissipation.
These features make the LT8390EFE#TRPBF suitable for a wide range of applications, including automotive lighting, industrial lighting, and general-purpose LED drivers.
Pinout
Key functions of the LT8390 include:
1. Input Voltage Range: 4V to 60V.
2. Output Voltage Range: 1V to 60V.
3. Switching Frequency: Adjustable between 150kHz and 650kHz.
4. Synchronous Rectification: For high efficiency.
5. Current Mode Control: Provides stable operation and fast transient response.
6. Programmable Undervoltage Lockout (UVLO): Enhances system reliability.
7. Protection Features: Overcurrent, overvoltage, and thermal shutdown.
This controller is suitable for applications requiring a compact solution with high efficiency over a wide range of input and output conditions. For specific pin functions and detailed configuration, referring to the datasheet is recommended.