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LT3748IMS#TRPBF
+StücklisteIC REG CTRLR FLYBACK 16MSOP
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HerstellerAnalog Devices Inc.
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Herstellerteil #LT3748IMS#TRPBF
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Datenblatt LT3748IMS#TRPBF DataSheet
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Paket MSOP-16
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Auf Lager4943
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Spezifikationen
| Attribut | Wert |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Active |
| Output Type | Transistor Driver |
| Function | Step-Up/Step-Down |
| Output Configuration | Positive, Isolation Capable |
| Topology | Flyback |
| Number of Outputs | 1 |
| Output Phases | 1 |
| Voltage - Supply (Vcc/Vdd) | 5V ~ 100V |
| Synchronous Rectifier | No |
| Clock Sync | No |
| Control Features | Enable, Soft Start |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount |
Übersicht
Description
Key features of the LT3748IMS#TRPBF include a wide input voltage range, integrated high-voltage power switch, and adjustable switching frequency, which allows designers to optimize the efficiency and size of the power supply. Its design simplifies the creation of isolated power supplies by using a primary-side feedback mechanism, which reduces component count and complexity.
Additionally, the LT3748IMS#TRPBF supports programmable soft-start, undervoltage lockout, and overcurrent protection to enhance reliability and performance. The IC is available in a thermally enhanced, surface-mount MSOP package.
Equivalent
1. Texas Instruments UCC28740: An isolated flyback controller with primary-side regulation.
2. ON Semiconductor NCP1027: A PWM controller for flyback applications.
3. Power Integrations TOPSwitch-HX series: Integrated switcher with a high-voltage MOSFET.
These alternatives may vary in specific features and performance, so it's important to verify compatibility with your application's requirements.
Features
1. Input Voltage Range: It operates over a wide input voltage range from 5V to 100V, making it versatile for various applications.
2. Output Voltage: The device supports isolated outputs without the need for an optocoupler, simplifying design and reducing component count.
3. Switching Frequency: Programmable switching frequency from 100kHz to 1MHz allows flexibility in design and optimization for efficiency and space.
4. No Optocoupler Required: It eliminates the need for a feedback optocoupler, reducing complexity and improving reliability.
5. Integrated 2A, 100V NPN Power Switch: This feature facilitates the handling of power levels suitable for many applications.
6. Boundary Mode Operation: It enhances efficiency, especially under light load conditions.
7. Thermal Shutdown: Protects the device from overheating due to excessive power dissipation or ambient temperature rises.
8. Package: Available in a compact 16-lead MSOP package to suit space-constrained designs.
This device suits power supply designs requiring isolation, such as industrial, automotive, and telecommunications applications.
Pinout
Key features include:
- Wide input voltage range: 5V to 100V.
- Single-switch topology suitable for flyback converters.
- Built-in high voltage start-up circuitry.
- No opto-coupler required for regulation.
- Programmable switching frequency.
- Bias supply voltage regulation.
The pin functions support these features, including connections for input voltage, gate drive, feedback, compensation, and more, enabling efficient and flexible power supply designs.
For detailed pin descriptions and applications, refer to the product datasheet from Analog Devices, which provides comprehensive information on using the LT3748 in various designs.
Manufacturer
Application
1. Telecommunications: Used in power supplies for telecom equipment, providing isolated power conversion and regulation.
2. Industrial Systems: Suitable for powering sensors, actuators, and other industrial systems requiring isolated power.
3. Automotive: Employed in electric vehicles and automotive systems for isolated DC-DC conversion.
4. Medical Devices: Provides safe, isolated power in medical equipment where patient safety is crucial.
5. Consumer Electronics: Used in chargers and adapters for efficient power management.
Its versatility and ability to handle high voltages make it suitable for any application requiring reliable isolated power conversion.