規格
| 屬性 | 價值 |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| OutputType | Transistor Driver |
| Function | Step-Up/Step-Down |
| OutputConfiguration | Positive, Isolation Capable |
| Topology | Flyback |
| NumberofOutputs | 1 |
| OutputPhases | 1 |
| Voltage-Supply(Vcc/Vdd) | 5V ~ 100V |
| SynchronousRectifier | No |
| ClockSync | No |
| ControlFeatures | Enable, Soft Start |
| OperatingTemperature | -40°C ~ 125°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | 16-TFSOP (0.118, 3.00mm Width), 12 Leads |
概述
Description
The LT3748EMS#TRPBF is a high-performance flyback converter designed by Analog Devices, formerly Linear Technology. It is specifically tailored for power supply applications and is suitable for isolated and non-isolated configurations. This device operates over a wide input voltage range, typically from 5V to 100V, making it versatile for various applications.
Key features of the LT3748 include its ability to drive a power switch for isolated flyback conversion without the need for an opto-coupler, making it efficient and cost-effective. It also boasts a programmable current limit and soft-start capabilities, which help in managing inrush current and ensuring smooth start-up operations.
Furthermore, the LT3748 provides excellent performance in terms of efficiency and reliability due to its boundary mode operation and integrated features like undervoltage lockout and thermal shutdown. It is commonly used in industrial, automotive, and telecom power supply solutions where space, efficiency, and reliability are crucial.
Key features of the LT3748 include its ability to drive a power switch for isolated flyback conversion without the need for an opto-coupler, making it efficient and cost-effective. It also boasts a programmable current limit and soft-start capabilities, which help in managing inrush current and ensuring smooth start-up operations.
Furthermore, the LT3748 provides excellent performance in terms of efficiency and reliability due to its boundary mode operation and integrated features like undervoltage lockout and thermal shutdown. It is commonly used in industrial, automotive, and telecom power supply solutions where space, efficiency, and reliability are crucial.
Equivalent
The LT3748EMS#TRPBF is an isolated flyback converter from Analog Devices. Equivalent products from other manufacturers might include:
1. Texas Instruments LM5001 - A flyback and forward controller.
2. ON Semiconductor NCP1027 - A self-supplied monolithic switcher.
3. Power Integrations TinySwitch or LinkSwitch series - Integrated switchers for isolated flyback applications.
When selecting an equivalent, ensure compatibility with your specific application's electrical and thermal characteristics.
1. Texas Instruments LM5001 - A flyback and forward controller.
2. ON Semiconductor NCP1027 - A self-supplied monolithic switcher.
3. Power Integrations TinySwitch or LinkSwitch series - Integrated switchers for isolated flyback applications.
When selecting an equivalent, ensure compatibility with your specific application's electrical and thermal characteristics.
Features
The LT3748EMS#TRPBF is a switching regulator controller designed by Analog Devices for isolated and non-isolated flyback converter applications. Key features include:
1. Wide Input Voltage Range: It operates from 5V to 100V, accommodating various power sources.
2. No Opto-isolator Required: It eliminates the need for an opto-isolator or third winding for output voltage regulation.
3. Programmable Operation: Offers programmable switching frequency from 100kHz to 1MHz, allowing design flexibility.
4. High Efficiency: Capable of achieving high efficiency with synchronous rectification.
5. Integrated Power Switch: Includes a 1.9A, 150V power switch.
6. Low Standby Current: Features low quiescent current, optimizing it for battery-powered applications.
7. Current Mode Control: Ensures stable operation and easy compensation.
8. MIL-STD-461 Compliant: Suitable for military and aerospace applications adhering to EMI standards.
9. Temperature Range: Operates within a temperature range of -40°C to 125°C.
These features make the LT3748EMS#TRPBF an ideal choice for efficient and versatile power conversion in compact applications.
1. Wide Input Voltage Range: It operates from 5V to 100V, accommodating various power sources.
2. No Opto-isolator Required: It eliminates the need for an opto-isolator or third winding for output voltage regulation.
3. Programmable Operation: Offers programmable switching frequency from 100kHz to 1MHz, allowing design flexibility.
4. High Efficiency: Capable of achieving high efficiency with synchronous rectification.
5. Integrated Power Switch: Includes a 1.9A, 150V power switch.
6. Low Standby Current: Features low quiescent current, optimizing it for battery-powered applications.
7. Current Mode Control: Ensures stable operation and easy compensation.
8. MIL-STD-461 Compliant: Suitable for military and aerospace applications adhering to EMI standards.
9. Temperature Range: Operates within a temperature range of -40°C to 125°C.
These features make the LT3748EMS#TRPBF an ideal choice for efficient and versatile power conversion in compact applications.
Pinout
The LT3748EMS#TRPBF is a high input voltage flyback controller from Analog Devices, designed to drive isolated flyback converters. This part is available in a 10-lead MSOP (Mini Small Outline Package) with a heat sink. The pin count for this package is 10 pins.
The primary functions of the LT3748 include:
1. Vin Pin: Input supply voltage.
2. GND Pin: Ground reference for the IC.
3. SW Pin: Switch pin for connecting to the transformer.
4. FB Pin: Feedback input for voltage regulation.
5. VC Pin: Compensation pin for loop stability.
6. SYNC Pin: Synchronization input.
7. RT Pin: Sets the switching frequency with an external resistor.
8. GATE Pin: Drives the gate of the external MOSFET.
9. SD Pin: Shutdown pin for low power operation.
10. SS Pin: Soft-start control pin.
This controller is tailored for applications requiring high voltage and high power efficiency, making it suitable for use in isolated power supplies.
The primary functions of the LT3748 include:
1. Vin Pin: Input supply voltage.
2. GND Pin: Ground reference for the IC.
3. SW Pin: Switch pin for connecting to the transformer.
4. FB Pin: Feedback input for voltage regulation.
5. VC Pin: Compensation pin for loop stability.
6. SYNC Pin: Synchronization input.
7. RT Pin: Sets the switching frequency with an external resistor.
8. GATE Pin: Drives the gate of the external MOSFET.
9. SD Pin: Shutdown pin for low power operation.
10. SS Pin: Soft-start control pin.
This controller is tailored for applications requiring high voltage and high power efficiency, making it suitable for use in isolated power supplies.
Manufacturer
The LT3748EMS#TRPBF is manufactured by Analog Devices, Inc. Analog Devices is a multinational semiconductor company that specializes in the design and manufacturing of analog, mixed-signal, and digital signal processing integrated circuits. The company is known for its high-performance electronic components used in a wide range of applications including industrial, automotive, healthcare, consumer electronics, and communications.
Application
The LT3748EMS#TRPBF is a high-voltage isolated flyback controller used in various power supply applications. Key application areas include:
1. Isolated Power Supplies: Used in telecom, industrial, and medical equipment for efficient power conversion.
2. Battery Charging: Suitable for isolated battery charger designs, especially in automotive and energy storage systems.
3. PoE (Power over Ethernet): Employed in powering network devices with isolation requirements.
4. LED Lighting: Utilized in LED drivers for illumination systems requiring isolation.
5. Consumer Electronics: Implemented in power adapters and chargers for safety and efficiency.
6. Renewable Energy: Supports solar micro-inverters and other renewable energy conversion applications.
Its versatility in handling high-input voltages and providing isolated outputs makes it ideal for these applications.
1. Isolated Power Supplies: Used in telecom, industrial, and medical equipment for efficient power conversion.
2. Battery Charging: Suitable for isolated battery charger designs, especially in automotive and energy storage systems.
3. PoE (Power over Ethernet): Employed in powering network devices with isolation requirements.
4. LED Lighting: Utilized in LED drivers for illumination systems requiring isolation.
5. Consumer Electronics: Implemented in power adapters and chargers for safety and efficiency.
6. Renewable Energy: Supports solar micro-inverters and other renewable energy conversion applications.
Its versatility in handling high-input voltages and providing isolated outputs makes it ideal for these applications.
Package
The LT3748EMS#TRPBF is a part number for a DC/DC converter from Analog Devices. The package type for this component is MSOP-10, which stands for Mini Small Outline Package with 10 pins.
