Hình ảnh chỉ để tham khảo
LT3475EFE
+BOM-
Nhà sản xuấtAnalog Devices
-
Ông. Phần #LT3475EFE
-
Có sẵn7835
365 Đảm bảo chất lượng ngày
7*24 giờ dịch vụ quarantee
90-Bảo hành sau bán hàng ngày
Bảo hành sản phẩm chính xác
Thông số kỹ thuật
| thuộc tính | Giá trị |
| Brand | Analog Devices |
| Subcategory | Driver ICs |
| Package / Case | TSSOP-20 |
| Height | 1.2 mm |
| Product Type | LED Lighting Drivers |
| Shipping Restrictions | Mouser does not presently sell this product in your region. |
| Topology | Buck |
| Current - Output | 1.5 A |
| Number of Outputs | 2 Output |
| Series | LT3475 |
| Product | LED Drivers |
| Number of Channels | 2 Channel |
Tổng quan
Description
The LT3475EFE is a high-performance, step-up (boost) DC-DC converter designed by Analog Devices. It is specifically tailored for applications requiring efficient power conversion, such as in battery-powered devices and LED drivers. This IC features an input voltage range of 2.4V to 32V and can output up to 34V, making it versatile for various applications.
Key features include a maximum output current of 1.5A, high efficiency up to 95%, and adjustable output voltage options. The LT3475EFE operates with a switching frequency of up to 1.2MHz, allowing for smaller external components and a compact design. It also incorporates features like soft start, under-voltage lockout, and thermal shutdown to enhance reliability and performance.
Additionally, the device is available in a compact 16-lead TSSOP package, making it suitable for space-constrained designs. Overall, the LT3475EFE is an excellent choice for designers looking for a reliable, efficient boost converter for demanding applications.
Key features include a maximum output current of 1.5A, high efficiency up to 95%, and adjustable output voltage options. The LT3475EFE operates with a switching frequency of up to 1.2MHz, allowing for smaller external components and a compact design. It also incorporates features like soft start, under-voltage lockout, and thermal shutdown to enhance reliability and performance.
Additionally, the device is available in a compact 16-lead TSSOP package, making it suitable for space-constrained designs. Overall, the LT3475EFE is an excellent choice for designers looking for a reliable, efficient boost converter for demanding applications.
Equivalent
Equivalent products to the LT3475EFE chip include the TPS63030 from Texas Instruments, the MAX17055 from Maxim Integrated, and the MICR112 from Microchip. These alternatives also provide high-efficiency buck-boost conversion and similar voltage/current specifications. Always check specific parameters and compatibility for your application.
Features
The LT3475EFE is a monolithic step-up (boost) DC/DC converter designed for applications requiring high efficiency and compact size. Key features include:
1. Wide Input Voltage Range: Operates from 2.5V to 16V, allowing versatility in battery-powered applications.
2. High Efficiency: Achieves up to 95% efficiency, minimizing power loss and extending battery life.
3. Adjustable Output Voltage: Output voltage can be set from 2.5V to 34V using external resistors, providing flexibility for various applications.
4. Low Quiescent Current: Maintains low power consumption during standby, enhancing battery performance.
5. Integrated Switch: Includes a high-side N-channel MOSFET for reduced component count and improved reliability.
6. Frequency Operation: Adjustable switching frequency up to 1MHz for optimized performance in different applications.
7. Overcurrent Protection: Features built-in current limit to protect against overloading conditions.
8. Thermal Shutdown: Prevents damage from overheating, ensuring safe operation.
These features make the LT3475EFE suitable for portable devices, LED drivers, and other applications requiring efficient power management.
1. Wide Input Voltage Range: Operates from 2.5V to 16V, allowing versatility in battery-powered applications.
2. High Efficiency: Achieves up to 95% efficiency, minimizing power loss and extending battery life.
3. Adjustable Output Voltage: Output voltage can be set from 2.5V to 34V using external resistors, providing flexibility for various applications.
4. Low Quiescent Current: Maintains low power consumption during standby, enhancing battery performance.
5. Integrated Switch: Includes a high-side N-channel MOSFET for reduced component count and improved reliability.
6. Frequency Operation: Adjustable switching frequency up to 1MHz for optimized performance in different applications.
7. Overcurrent Protection: Features built-in current limit to protect against overloading conditions.
8. Thermal Shutdown: Prevents damage from overheating, ensuring safe operation.
These features make the LT3475EFE suitable for portable devices, LED drivers, and other applications requiring efficient power management.
Pinout
The LT3475EFE is a high-efficiency LED driver designed for powering LEDs in various applications. It features a 16-pin configuration. The primary functions of the pins include:
1. VIN (Pin 1): Input voltage supply.
2. SW (Pin 2): Switch node for connecting to the inductor.
3. GND (Pin 3): Ground reference.
4. ISENSE (Pin 4): Current sense input for LED current regulation.
5. COMP (Pin 5): Compensation network connection for stability.
6. CSN (Pin 6): Current sense negative terminal.
7. CSP (Pin 7): Current sense positive terminal.
8. ISET (Pin 8): Sets the output current via a resistor.
9. RAMP (Pin 9): Controls the slope of the voltage ramp.
10. FAULT (Pin 10): Fault indicator output.
11. SS (Pin 11): Soft-start timing capacitor connection.
12. NC (Pins 12, 13): No connect, not used.
13. VOUT (Pin 14): Output voltage connection for LEDs.
14. VCC (Pin 15): Output voltage for internal circuitry.
15. RT (Pin 16): Timing resistor connection for frequency setting.
Overall, the LT3475EFE is designed to efficiently drive multiple LED strings with accurate current regulation.
1. VIN (Pin 1): Input voltage supply.
2. SW (Pin 2): Switch node for connecting to the inductor.
3. GND (Pin 3): Ground reference.
4. ISENSE (Pin 4): Current sense input for LED current regulation.
5. COMP (Pin 5): Compensation network connection for stability.
6. CSN (Pin 6): Current sense negative terminal.
7. CSP (Pin 7): Current sense positive terminal.
8. ISET (Pin 8): Sets the output current via a resistor.
9. RAMP (Pin 9): Controls the slope of the voltage ramp.
10. FAULT (Pin 10): Fault indicator output.
11. SS (Pin 11): Soft-start timing capacitor connection.
12. NC (Pins 12, 13): No connect, not used.
13. VOUT (Pin 14): Output voltage connection for LEDs.
14. VCC (Pin 15): Output voltage for internal circuitry.
15. RT (Pin 16): Timing resistor connection for frequency setting.
Overall, the LT3475EFE is designed to efficiently drive multiple LED strings with accurate current regulation.
Manufacturer
The LT3475EFE is manufactured by Analog Devices, Inc. (ADI). Analog Devices is a prominent American multinational semiconductor company that specializes in data conversion, signal processing, and power management technologies. Founded in 1965, the company is recognized for its high-performance analog, mixed-signal, and digital signal processing (DSP) integrated circuits. Analog Devices serves a wide range of industries, including communications, automotive, industrial, healthcare, and consumer electronics.
The LT3475EFE is a high-performance LED driver designed for driving multiple LEDs in series or parallel configurations, making it suitable for applications in lighting and display systems. As a leader in high-tech solutions, Analog Devices focuses on innovation and quality, providing essential components that enable advancements in various electronic applications.
The LT3475EFE is a high-performance LED driver designed for driving multiple LEDs in series or parallel configurations, making it suitable for applications in lighting and display systems. As a leader in high-tech solutions, Analog Devices focuses on innovation and quality, providing essential components that enable advancements in various electronic applications.
Application
The LT3475EFE is a versatile LED driver primarily used in applications such as backlighting for LCD displays, automotive lighting, and general lighting solutions. It supports multiple LED configurations, allowing for high-efficiency operation in portable devices, TVs, and signage. The driver features a wide input voltage range, making it suitable for battery-powered applications, as well as industrial and consumer electronic devices. Additionally, its compact design and high-performance capabilities make it ideal for compact LED setups in various lighting applications.
Package
The LT3475EFE comes in a 16-lead TSSOP (Thin Shrink Small Outline Package) format.
