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LM5020MM-2
+Lista de MateriaisIC REG CTRLR FLYBACK 10MSOP
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FabricanteTexas Instruments
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Peça do Fabricante #LM5020MM-2
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Ficha Técnica LM5020MM-2 DataSheet
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Especificações
| Atributo | Valor |
| PartStatus | Obsolete |
| OutputType | Transistor Driver |
| Function | Step-Up/Step-Down |
| OutputConfiguration | Positive |
| Topology | Flyback |
| NumberofOutputs | 1 |
| OutputPhases | 1 |
| Voltage-Supply(Vcc/Vdd) | 8V ~ 15V |
| Frequency-Switching | 200kHz ~ 630kHz |
| DutyCycle(Max) | 50% |
| SynchronousRectifier | No |
| ClockSync | Yes |
| ControlFeatures | Frequency Control, Soft Start |
| OperatingTemperature | -40°C ~ 125°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) |
| SupplierDevicePackage | 10-VSSOP |
| BaseProductNumber | LM5020 |
Visão Geral
Description
The LM5020MM-2 is a high-performance, versatile power supply controller designed for use in isolated power supply applications. It integrates a range of features including a high-voltage start-up capability, PWM (Pulse Width Modulation) control, and adjustable output voltage regulation. Operating within a wide input voltage range, it is particularly suitable for applications in telecommunications, industrial systems, and automotive power supplies.
Key specifications include a frequency range typically around 100 kHz and the ability to drive external N-channel MOSFETs for efficient power conversion. The LM5020MM-2 also includes protections such as under-voltage lockout, over-voltage protection, and thermal shutdown, enhancing the reliability of the power system.
With its compact design and integrated functions, the LM5020MM-2 helps streamline the development of efficient power converters, minimizing component count and board space. Its flexibility and robustness make it a popular choice among engineers for designing reliable power supply solutions.
Key specifications include a frequency range typically around 100 kHz and the ability to drive external N-channel MOSFETs for efficient power conversion. The LM5020MM-2 also includes protections such as under-voltage lockout, over-voltage protection, and thermal shutdown, enhancing the reliability of the power system.
With its compact design and integrated functions, the LM5020MM-2 helps streamline the development of efficient power converters, minimizing component count and board space. Its flexibility and robustness make it a popular choice among engineers for designing reliable power supply solutions.
Equivalent
The LM5020MM-2 is a primary-side regulation controller used in power supply applications. Equivalent products include the LM5020 (various package options), UC3825, NCP1200, and TOPSwitch series (e.g., TOP258, TOP264) from Power Integrations. Always consult the datasheets for specific application requirements and characteristics to ensure compatibility.
Features
The LM5020MM-2 is a high-voltage, high-performance PWM controller designed for power supply applications. Key features include:
1. Wide Input Voltage Range: Operates from 10V to 100V, making it suitable for various applications.
2. Integrated High-Voltage Start-Up Circuit: Enables direct connection to high-voltage power sources without the need for an external resistor.
3. Current Mode Control: Provides stable operation and improved transient response.
4. Adjustable Switching Frequency: Typically operates between 50 kHz to 500 kHz, allowing design flexibility.
5. Built-In Protection Features: Includes over-voltage protection (OVP), under-voltage lockout (UVLO), and thermal shutdown to enhance reliability.
6. Soft Start Functionality: Reduces inrush current during startup.
7. Compact Package: Available in an 8-pin SOIC package, enabling space-efficient designs.
These features make the LM5020MM-2 suitable for applications such as LED drivers, offline switching power supplies, and industrial power supplies.
1. Wide Input Voltage Range: Operates from 10V to 100V, making it suitable for various applications.
2. Integrated High-Voltage Start-Up Circuit: Enables direct connection to high-voltage power sources without the need for an external resistor.
3. Current Mode Control: Provides stable operation and improved transient response.
4. Adjustable Switching Frequency: Typically operates between 50 kHz to 500 kHz, allowing design flexibility.
5. Built-In Protection Features: Includes over-voltage protection (OVP), under-voltage lockout (UVLO), and thermal shutdown to enhance reliability.
6. Soft Start Functionality: Reduces inrush current during startup.
7. Compact Package: Available in an 8-pin SOIC package, enabling space-efficient designs.
These features make the LM5020MM-2 suitable for applications such as LED drivers, offline switching power supplies, and industrial power supplies.
Pinout
The LM5020MM-2 is a high-voltage, current-mode PWM controller designed for use in switch-mode power supplies. It features a 20-pin surface-mount package (MM-20) with various functions, including:
1. PWM Control: Regulates the output voltage by controlling the duty cycle.
2. High Voltage Start-Up: Allows connection directly to high-voltage inputs, eliminating the need for an additional start-up circuit.
3. Internal Reference: Provides a stable reference voltage for feedback regulation.
4. Over-voltage Protection: Monitors output voltage to prevent over-voltage conditions.
5. Under-voltage Lockout (UVLO): Ensures the device operates only when the input voltage is within a specified range.
6. Soft Start: Gradually ramps up the output voltage to prevent inrush current.
The pin configuration includes connections for input voltage, output feedback, compensation, and gate drive, among others, allowing flexible integration into power supply designs.
1. PWM Control: Regulates the output voltage by controlling the duty cycle.
2. High Voltage Start-Up: Allows connection directly to high-voltage inputs, eliminating the need for an additional start-up circuit.
3. Internal Reference: Provides a stable reference voltage for feedback regulation.
4. Over-voltage Protection: Monitors output voltage to prevent over-voltage conditions.
5. Under-voltage Lockout (UVLO): Ensures the device operates only when the input voltage is within a specified range.
6. Soft Start: Gradually ramps up the output voltage to prevent inrush current.
The pin configuration includes connections for input voltage, output feedback, compensation, and gate drive, among others, allowing flexible integration into power supply designs.
Manufacturer
The LM5020MM-2 is manufactured by Texas Instruments (TI), a leading global semiconductor company. Founded in 1930 and headquartered in Dallas, Texas, Texas Instruments designs and produces a wide range of analog and digital semiconductor solutions. The company is renowned for its innovations in various fields, including signal processing, embedded processing, and power management. TI serves diverse markets such as automotive, industrial, communications, and consumer electronics, providing essential components for various electronic applications. With a strong focus on research and development, Texas Instruments continuously strives to enhance its product offerings and maintain its leadership position in the semiconductor industry.
Application
The LM5020MM-2 is a high-performance power management integrated circuit primarily used in high-voltage applications, such as power supplies for telecom systems, industrial equipment, and LED drivers. Its features include voltage regulation, power factor correction, and wide input voltage range capabilities. This chip is suitable for use in isolated DC-DC converters, offline switch-mode power supplies, and various applications requiring robust power management solutions. Its efficiency and reliability make it ideal for demanding environments in both commercial and industrial sectors.
Package
The LM5020MM-2 is available in a surface mount package type known as the "M" package, specifically a 16-pin TSSOP (Thin Shrink Small Outline Package).
