Specifications
| Attribute | Value |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Not For New Designs |
| Output Type | Transistor Driver |
| Function | Step-Up, Step-Up/Step-Down |
| Output Configuration | Positive |
| Topology | Boost, SEPIC |
| Number of Outputs | 1 |
| Output Phases | 1 |
| Voltage - Supply (Vcc/Vdd) | 6V ~ 60V |
| Frequency - Switching | 200kHz ~ 990kHz |
| Duty Cycle(Max) | 95% |
| Synchronous Rectifier | No |
| Clock Sync | Yes |
| Control Features | Frequency Control, Soft Start |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount |
Overview
Description
The LM5022MM is a high-performance, current-mode PWM (Pulse Width Modulation) controller designed primarily for boost or flyback DC-DC converter applications. It is manufactured by Texas Instruments and is part of the LM5022 series. This controller is optimized for high-efficiency and compact applications, supporting both isolated and non-isolated configurations.
Key features include:
1. Wide input voltage range: The LM5022MM supports input voltages from 6V to 60V, making it versatile for various applications.
2. High efficiency: It utilizes a current-mode control architecture to ensure fast transient response and circuit stability.
3. Adjustable switching frequency: The device allows you to set the switching frequency from 50 kHz to 2 MHz, enabling design flexibility.
4. Built-in protections: It includes essential protections like overcurrent protection, thermal shutdown, and undervoltage lockout (UVLO).
Applications for the LM5022MM include LED drivers, telecom power supplies, and battery-powered systems, where efficiency and compactness are crucial. Its compact size and robust feature set make it ideal for modern electronic designs requiring reliable and efficient power conversion.
Key features include:
1. Wide input voltage range: The LM5022MM supports input voltages from 6V to 60V, making it versatile for various applications.
2. High efficiency: It utilizes a current-mode control architecture to ensure fast transient response and circuit stability.
3. Adjustable switching frequency: The device allows you to set the switching frequency from 50 kHz to 2 MHz, enabling design flexibility.
4. Built-in protections: It includes essential protections like overcurrent protection, thermal shutdown, and undervoltage lockout (UVLO).
Applications for the LM5022MM include LED drivers, telecom power supplies, and battery-powered systems, where efficiency and compactness are crucial. Its compact size and robust feature set make it ideal for modern electronic designs requiring reliable and efficient power conversion.
Equivalent
The LM5022MM is a high-voltage, wide-input range boost controller. Equivalent products include the Texas Instruments LM5022 series in different package options, Maxim Integrated's MAX1771, and Analog Devices' LT3759, which offer similar functionalities. Other possible equivalents might include the ON Semiconductor NCP1200 series, although specifics like input voltage range and application requirements should be carefully compared to ensure compatibility. Always verify the electrical specifications and pin configurations before substituting.
Features
The LM5022MM is a versatile, high-performance controller for boost and SEPIC converters, manufactured by Texas Instruments. It operates over a wide input voltage range of 4.5V to 60V, making it suitable for a variety of applications. Key features include a high-efficiency pulse-width modulation (PWM) controller with a 1.5A peak gate drive, enabling it to drive large power MOSFETs effectively. The device supports constant frequency operation, which helps in minimizing electromagnetic interference (EMI). It also includes a programmable soft-start function to reduce inrush currents during startup. The LM5022MM has an adjustable switching frequency, allowing users to optimize for efficiency or size constraints. It boasts cycle-by-cycle current limiting and thermal shutdown protection to ensure robust operation under fault conditions. The controller also has a low shutdown current of less than 10µA, enhancing power efficiency in standby modes. Its compact form factor makes it suitable for space-constrained applications. Overall, the LM5022MM is ideal for use in telecom, automotive, and industrial power supply applications.
Pinout
The LM5022MM is an integrated circuit used for boost and flyback converter applications. It is typically available in an 8-pin MSOP package. Here is a concise description of its pin functions:
1. VCC (Pin 1): Supplies power to the internal control circuitry.
2. OUT (Pin 2): The gate drive output for the external MOSFET.
3. CS (Pin 3): Current sense input for monitoring the current through the MOSFET.
4. RT/SD (Pin 4): A resistor connected here sets the oscillator frequency. This pin also serves as a shutdown control.
5. FB (Pin 5): Feedback input for output voltage regulation.
6. COMP (Pin 6): Compensation pin for stabilizing the control loop.
7. GND (Pin 7): Ground reference for the IC.
8. VIN (Pin 8): Input voltage supply for the IC.
This configuration supports its primary function as a high-performance, low-side N-FET controller designed for boost and flyback topologies.
1. VCC (Pin 1): Supplies power to the internal control circuitry.
2. OUT (Pin 2): The gate drive output for the external MOSFET.
3. CS (Pin 3): Current sense input for monitoring the current through the MOSFET.
4. RT/SD (Pin 4): A resistor connected here sets the oscillator frequency. This pin also serves as a shutdown control.
5. FB (Pin 5): Feedback input for output voltage regulation.
6. COMP (Pin 6): Compensation pin for stabilizing the control loop.
7. GND (Pin 7): Ground reference for the IC.
8. VIN (Pin 8): Input voltage supply for the IC.
This configuration supports its primary function as a high-performance, low-side N-FET controller designed for boost and flyback topologies.
Manufacturer
The LM5022MM is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor design and manufacturing company. It specializes in the production of analog and embedded processing chips that are used in a wide range of electronic systems and devices. TI’s products are integral to various applications, including automotive, industrial, personal electronics, communications, and enterprise systems. The company is known for its innovation and extensive portfolio of products that support efficiency, reliability, and performance in electronic design.
Application
The LM5022MM is a high-voltage, low-side N-channel MOSFET controller used in various power conversion applications. Key application areas include:
1. Boost Converters: Enhancing voltage levels in power supply systems.
2. Flyback Converters: Providing isolated outputs for power supplies.
3. SEPIC (Single-Ended Primary-Inductor Converter): Used for applications requiring a wide range of input voltage levels.
4. LED Drivers: Powering and controlling LEDs with efficient energy use.
5. Battery Chargers: Facilitating charging by managing voltage and current levels.
6. DC-DC Converters: Converting and regulating DC power for various electronic devices and systems.
These applications benefit from the LM5022MM's wide input voltage range, efficiency, and flexibility in power management.
1. Boost Converters: Enhancing voltage levels in power supply systems.
2. Flyback Converters: Providing isolated outputs for power supplies.
3. SEPIC (Single-Ended Primary-Inductor Converter): Used for applications requiring a wide range of input voltage levels.
4. LED Drivers: Powering and controlling LEDs with efficient energy use.
5. Battery Chargers: Facilitating charging by managing voltage and current levels.
6. DC-DC Converters: Converting and regulating DC power for various electronic devices and systems.
These applications benefit from the LM5022MM's wide input voltage range, efficiency, and flexibility in power management.
Package
The LM5022MM is typically available in a mini small-outline package (MSOP), specifically an 8-pin MSOP. This package type is compact, making it suitable for space-constrained applications.
