사양
| 속성 | 가치 |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Obsolete |
| OutputType | Transistor Driver |
| Function | Step-Up/Step-Down |
| OutputConfiguration | Positive, Isolation Capable |
| Topology | Forward Converter |
| NumberofOutputs | 2 |
| OutputPhases | 1 |
| Voltage-Supply(Vcc/Vdd) | 8V ~ 15V |
| Frequency-Switching | 200kHz ~ 590kHz |
| DutyCycle(Max) | 70%, 80% |
| SynchronousRectifier | No |
| ClockSync | Yes |
| ControlFeatures | Dead Time Control, Frequency Control, Reset, Soft Start |
| OperatingTemperature | -40°C ~ 125°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | 16-TSSOP (0.173, 4.40mm Width) |
개요
Description
The LM5026MTX is a high-performance, current-mode PWM (Pulse Width Modulation) controller designed for applications in isolated and non-isolated DC-DC converters. It is part of the LM5026 series and is often used in power supply designs that require efficiency, reliability, and precision.
Key features of the LM5026MTX include programmable switching frequency, soft-start capability, and a wide input voltage range. It supports both voltage and current mode control, offering flexibility for various power management applications. The device also includes built-in protection features such as over-voltage protection, under-voltage lockout, and current limiting, ensuring robust performance under different operating conditions.
The LM5026MTX is particularly suited for use in power systems requiring synchronization to an external clock, thanks to its synchronization capability. It is typically housed in a thermally enhanced package, allowing for better heat dissipation and improved thermal performance.
Overall, the LM5026MTX is ideal for applications in telecommunications, industrial power systems, and other areas needing efficient power conversion solutions.
Key features of the LM5026MTX include programmable switching frequency, soft-start capability, and a wide input voltage range. It supports both voltage and current mode control, offering flexibility for various power management applications. The device also includes built-in protection features such as over-voltage protection, under-voltage lockout, and current limiting, ensuring robust performance under different operating conditions.
The LM5026MTX is particularly suited for use in power systems requiring synchronization to an external clock, thanks to its synchronization capability. It is typically housed in a thermally enhanced package, allowing for better heat dissipation and improved thermal performance.
Overall, the LM5026MTX is ideal for applications in telecommunications, industrial power systems, and other areas needing efficient power conversion solutions.
Equivalent
The LM5026MTX is a PWM controller for push-pull and half-bridge power converters. Equivalent products might include similar PWM controllers from other manufacturers, such as the UCC28250 from Texas Instruments, the SG3525A from ON Semiconductor, or the UC3525 from Texas Instruments. Always verify compatibility in terms of electrical characteristics and pin configuration when selecting an alternative.
Features
The LM5026MTX is a high-performance PWM controller from Texas Instruments, designed for isolated power supply applications. It features a highly adjustable, fixed-frequency PWM controller optimized for current-mode control, offering precise power management. Key features include:
1. Wide Input Voltage Range: Supports a broad input voltage to accommodate various power supply conditions.
2. Frequency Synchronization: Capable of synchronizing the switching frequency with an external clock, allowing enhanced flexibility in system design.
3. Current-Mode Control: Offers superior line regulation and simplifies the compensation design process.
4. Advanced Protection Features: Includes over-voltage, under-voltage lockout, over-current protection, and thermal shutdown to enhance safety and reliability.
5. Soft-Start Capability: Allows for controlled ramp-up of output voltage, minimizing inrush current during startup.
6. Programmable Dead-Time Control: Enhances efficiency and performance by optimizing the dead time between high-side and low-side switches.
These features make the LM5026MTX suitable for various applications, ensuring efficient and reliable power management in isolated power supply designs.
1. Wide Input Voltage Range: Supports a broad input voltage to accommodate various power supply conditions.
2. Frequency Synchronization: Capable of synchronizing the switching frequency with an external clock, allowing enhanced flexibility in system design.
3. Current-Mode Control: Offers superior line regulation and simplifies the compensation design process.
4. Advanced Protection Features: Includes over-voltage, under-voltage lockout, over-current protection, and thermal shutdown to enhance safety and reliability.
5. Soft-Start Capability: Allows for controlled ramp-up of output voltage, minimizing inrush current during startup.
6. Programmable Dead-Time Control: Enhances efficiency and performance by optimizing the dead time between high-side and low-side switches.
These features make the LM5026MTX suitable for various applications, ensuring efficient and reliable power management in isolated power supply designs.
Pinout
The LM5026MTX is a high-performance PWM controller specifically designed for use in isolated power converters. It comes in a 16-pin TSSOP package. Here's a brief overview of its pin functions:
1. VCC: Supply voltage to the chip.
2. OUT_A: Drive output for the external MOSFET.
3. OUT_B: Alternative drive output for complementary switching.
4. CS: Current sense input for peak current mode control.
5. RT: Timing resistor for setting oscillator frequency.
6. SYNC: Synchronization input for external clock.
7. COMP: Compensation network connection for loop stability.
8. FB: Feedback input for voltage regulation.
9. UVLO: Under-voltage lockout programming pin.
10. VREF: Reference voltage output.
11. RES: Restart timing capacitor connection for fault conditions.
12. SS: Soft-start programming pin.
13. RAMP: Modulator ramp signal input.
14. AGND: Analog ground connection.
15. PGND: Power ground connection.
16. VIN: Input voltage for the PWM controller.
These pins collectively enable the LM5026MTX to regulate power efficiently in various applications, especially in isolated power converter designs.
1. VCC: Supply voltage to the chip.
2. OUT_A: Drive output for the external MOSFET.
3. OUT_B: Alternative drive output for complementary switching.
4. CS: Current sense input for peak current mode control.
5. RT: Timing resistor for setting oscillator frequency.
6. SYNC: Synchronization input for external clock.
7. COMP: Compensation network connection for loop stability.
8. FB: Feedback input for voltage regulation.
9. UVLO: Under-voltage lockout programming pin.
10. VREF: Reference voltage output.
11. RES: Restart timing capacitor connection for fault conditions.
12. SS: Soft-start programming pin.
13. RAMP: Modulator ramp signal input.
14. AGND: Analog ground connection.
15. PGND: Power ground connection.
16. VIN: Input voltage for the PWM controller.
These pins collectively enable the LM5026MTX to regulate power efficiently in various applications, especially in isolated power converter designs.
Manufacturer
The LM5026MTX is manufactured by Texas Instruments (TI), a well-known American technology company. Texas Instruments is a global semiconductor company that designs and makes analog and embedded processing chips. These components are integral to a variety of electronic devices, providing essential functions such as signal processing, power management, and connectivity. TI is recognized for its innovation in the electronics industry and serves a wide range of markets including industrial, automotive, personal electronics, communications equipment, and enterprise systems. The company is committed to advancing technology through its extensive portfolio of semiconductors and services, contributing significantly to the electronics supply chain worldwide.
Application
The LM5026MTX is a high-performance pulse width modulation (PWM) controller designed for use in various power conversion applications. Key application areas include:
1. DC-DC Converters: Used in isolated and non-isolated converter designs for efficient power management.
2. Telecom Power Supplies: Supports high voltage and high current requirements typical in telecommunications infrastructure.
3. Industrial Power Supplies: Suitable for robust industrial applications requiring precise control and efficiency.
4. Server and Networking Equipment: Provides reliable power conversion for data centers and network hardware.
5. Automotive Systems: Integrates into vehicle power systems for efficient energy conversion and management.
These applications benefit from the LM5026MTX’s high-frequency operation, integrated start-up regulator, and current-mode control features.
1. DC-DC Converters: Used in isolated and non-isolated converter designs for efficient power management.
2. Telecom Power Supplies: Supports high voltage and high current requirements typical in telecommunications infrastructure.
3. Industrial Power Supplies: Suitable for robust industrial applications requiring precise control and efficiency.
4. Server and Networking Equipment: Provides reliable power conversion for data centers and network hardware.
5. Automotive Systems: Integrates into vehicle power systems for efficient energy conversion and management.
These applications benefit from the LM5026MTX’s high-frequency operation, integrated start-up regulator, and current-mode control features.
Package
The LM5026MTX is packaged in a TSSOP (Thin Shrink Small Outline Package) with 16 pins. This package type is designed for improved thermal performance and a smaller footprint on a printed circuit board, making it suitable for space-constrained applications.
