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LT3790EFE#PBF
+BOMIC REG CTRLR BUCK-BOOST 38TSSOP
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ManufacturerAnalog Devices Inc.
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Mfr. Part #LT3790EFE#PBF
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Datasheet LT3790EFE#PBF DataSheet
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In Stock8705
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Specifications
| Attribute | Value |
| Part Status | Active |
| Output Type | Transistor Driver |
| Function | Step-Up/Step-Down |
| Output Configuration | Positive |
| Topology | Buck-Boost |
| Number of Outputs | 2 |
| Output Phases | 2 |
| Voltage - Supply (Vcc/Vdd) | 4.7V ~ 60V |
| Frequency - Switching | 200kHz ~ 700kHz |
| Synchronous Rectifier | Yes |
| Clock Sync | Yes |
| Control Features | Enable, Frequency Control, Soft Start |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount |
| Package / Case | 38-TFSOP (0.173", 4.40mm Width) Exposed Pad |
| Supplier Device Package | 38-TSSOP-EP |
| Base Product Number | LT3790 |
Overview
Description
The LT3790EFE#PBF is a high-performance LED driver IC from Analog Devices, designed for driving high-brightness LEDs in various lighting applications. This device features a constant current output, which ensures uniform brightness across the LED array. It operates in a wide input voltage range and can switch efficiently to maximize power conversion.
Key features include a programmable frequency operation, support for dimming through PWM (Pulse Width Modulation) and an adjustable output current, making it versatile for different applications. The LT3790EFE#PBF also includes protections against overvoltage, overcurrent, and thermal shutdown, enhancing the reliability of the LED lighting system.
The device comes in a thermally enhanced 16-lead TSSOP package, facilitating easy integration into compact designs. Overall, the LT3790EFE#PBF is suitable for applications in automotive lighting, architectural lighting, and general illumination where high efficiency and precise current control are required.
Key features include a programmable frequency operation, support for dimming through PWM (Pulse Width Modulation) and an adjustable output current, making it versatile for different applications. The LT3790EFE#PBF also includes protections against overvoltage, overcurrent, and thermal shutdown, enhancing the reliability of the LED lighting system.
The device comes in a thermally enhanced 16-lead TSSOP package, facilitating easy integration into compact designs. Overall, the LT3790EFE#PBF is suitable for applications in automotive lighting, architectural lighting, and general illumination where high efficiency and precise current control are required.
Equivalent
The LT3790EFE#PBF is a high-voltage LED driver from Analog Devices. Equivalent products include the LM3405 from Texas Instruments, MAX16832 from Maxim Integrated, and ISL97634 from Renesas. When considering alternatives, ensure they meet your specific application requirements, such as voltage range, current output, and features. Always consult datasheets for detailed comparisons.
Features
The LT3790EFE#PBF is a high-performance DC/DC converter from Analog Devices designed for LED driver applications. Key features include:
1. Input Voltage Range: Supports 4.5V to 60V, making it versatile for various applications.
2. Output Current: Capable of driving up to 1.5A of output current, suitable for high-power LED configurations.
3. Constant Current Regulation: Ensures stable LED brightness with built-in current regulation.
4. Switching Frequency: Adjustable frequency up to 1MHz, allowing for optimized performance and smaller component sizes.
5. Open LED Protection: Prevents damage in case of an open LED condition.
6. Thermal Shutdown: Integrated thermal protection to prevent overheating.
7. Wide Dimming Range: Supports both analog and PWM dimming, offering flexibility in brightness control.
8. Compact Package: Available in a thermally enhanced 16-lead TSSOP package, facilitating space-efficient designs.
These features make the LT3790EFE#PBF suitable for various applications, including automotive, industrial, and architectural lighting.
1. Input Voltage Range: Supports 4.5V to 60V, making it versatile for various applications.
2. Output Current: Capable of driving up to 1.5A of output current, suitable for high-power LED configurations.
3. Constant Current Regulation: Ensures stable LED brightness with built-in current regulation.
4. Switching Frequency: Adjustable frequency up to 1MHz, allowing for optimized performance and smaller component sizes.
5. Open LED Protection: Prevents damage in case of an open LED condition.
6. Thermal Shutdown: Integrated thermal protection to prevent overheating.
7. Wide Dimming Range: Supports both analog and PWM dimming, offering flexibility in brightness control.
8. Compact Package: Available in a thermally enhanced 16-lead TSSOP package, facilitating space-efficient designs.
These features make the LT3790EFE#PBF suitable for various applications, including automotive, industrial, and architectural lighting.
Pinout
The LT3790EFE#PBF is a high-performance LED driver with a pin count of 20. It is primarily designed for driving high-brightness LEDs in various applications, including architectural and automotive lighting.
Key functions of the pins include:
- Input Voltage (VIN): Provides the operating voltage.
- Ground (GND): Common ground reference.
- SW (Switch): Connects to the inductor for boost topology.
- CSN/ CSP (Current Sense): Used for current sensing to regulate LED current.
- COMP (Compensation): For stability in control loops.
- Rset (Setting Resistor): Sets the LED current.
- PWM (Pulse Width Modulation): Controls LED brightness.
- EN (Enable): Activates or deactivates the driver.
- ISET (Current Setting): Sets the output current.
- VOUT (Output Voltage): Connects to the LED load.
The LT3790EFE#PBF offers various features for flexible design in LED applications while ensuring efficiency and reliability.
Key functions of the pins include:
- Input Voltage (VIN): Provides the operating voltage.
- Ground (GND): Common ground reference.
- SW (Switch): Connects to the inductor for boost topology.
- CSN/ CSP (Current Sense): Used for current sensing to regulate LED current.
- COMP (Compensation): For stability in control loops.
- Rset (Setting Resistor): Sets the LED current.
- PWM (Pulse Width Modulation): Controls LED brightness.
- EN (Enable): Activates or deactivates the driver.
- ISET (Current Setting): Sets the output current.
- VOUT (Output Voltage): Connects to the LED load.
The LT3790EFE#PBF offers various features for flexible design in LED applications while ensuring efficiency and reliability.
Manufacturer
The LT3790EFE#PBF is manufactured by Analog Devices, Inc. Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing (DSP) integrated circuits. Founded in 1965, the company specializes in the design and manufacturing of semiconductor solutions for a wide range of applications, including communications, automotive, industrial, and consumer electronics. Their products are widely used in various sectors that require precise and reliable data conversion and signal processing. Analog Devices is known for its innovative technologies and commitment to quality, making it a key player in the electronics industry.
Application
The LT3790EFE#PBF is a high-performance, DC/DC LED driver primarily used in applications such as automotive lighting, general lighting, and industrial lighting. It supports both boost and buck-boost topologies, making it suitable for driving high-brightness LEDs in various configurations. Additionally, it is utilized in applications requiring efficient power conversion with dimming control, including architectural and decorative lighting. Its features enable advanced lighting solutions, such as RGB color mixing and smart lighting systems.
Package
The LT3790EFE#PBF package type is an EF Flat No-lead (FNP) package. It features a compact design suitable for surface-mount applications, providing efficient thermal performance and reduced PCB space requirements.
