LM5022MMX

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LM5022MMX

IC REG CTRLR BOOST/SEPIC 10MSOP

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規格

Part Status Obsolete
Base Product Number LM5022
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
Package 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
Supplier Device Package 10-VSSOP
Packaging Tape & Reel (TR)

概述

Description

The LM5022MMX is a high-performance PWM controller designed for DC-DC boost or flyback converters. It is part of Texas Instruments' LM5022 series, known for its efficiency and reliability in power management applications. The device operates over a wide input voltage range, making it suitable for applications like power supplies and LED drivers.
Key features include a high-speed current mode architecture, which allows for fast transient response and ease of loop compensation. The LM5022MMX also supports a wide output voltage range, enabling flexibility in design. It provides a programmable switching frequency, allowing designers to optimize efficiency and performance depending on specific requirements.
Protection features such as overcurrent protection, thermal shutdown, and current limiting enhance reliability and safety. The device is typically available in a small, thermally efficient package, making it suitable for compact applications where space is a constraint. With its robust feature set, the LM5022MMX is ideal for engineers looking for a versatile and efficient solution for boosting or isolated power conversion.

Features

The LM5022MMX is a high-voltage, low-side N-channel MOSFET controller designed for boost and flyback DC-DC converters. Key features include:
1. Wide Input Voltage Range: Operates from 4.5V to 60V, suitable for varied applications.
2. High Efficiency: Optimized for high efficiency due to its low-side N-channel MOSFET gate driver.
3. Adjustable Frequency: Allows for frequency adjustments from 50 kHz to 2 MHz, providing design flexibility.
4. Current-Mode Control: Ensures stable operation over a wide range of input and output voltages.
5. Programmable Soft-Start: Facilitates controlled startup, reducing inrush current.
6. Cycle-by-Cycle Current Limiting: Protects the converter from overcurrent conditions.
7. Thermal Shutdown: Provides protection against overheating.
8. Precision Voltage Reference: Ensures accurate output voltage regulation.
9. UVLO (Under-Voltage Lockout): Prevents operation at insufficient input voltage levels.
These features make the LM5022MMX a versatile choice for applications requiring efficient voltage conversion, such as industrial control, automotive systems, and telecommunications.

Package

The LM5022MMX is typically available in a VSSOP-8 (Very Thin Shrink Small Outline Package) package type, which is a small form factor suitable for space-constrained applications.

Pinout

The LM5022MMX is a high-voltage, low-side N-channel MOSFET controller for boost and SEPIC converters. It is typically used in DC-DC converter applications. The LM5022MMX comes in an 8-pin VSSOP package. Here's a brief overview of its pin functions:
1. VCC (Pin 1): Supplies power to the IC.
2. GATE (Pin 2): Drives the gate of the external MOSFET.
3. GND (Pin 3): Ground reference for the IC.
4. ISEN (Pin 4): Current sense input for current mode control.
5. COMP (Pin 5): Compensation network connection to stabilize the control loop.
6. FB (Pin 6): Feedback input for regulating the output voltage.
7. RT (Pin 7): Sets the switching frequency.
8. UVLO (Pin 8): Under-voltage lockout programming input.
These pins collectively enable the LM5022MMX to regulate the output voltage and control the switching of an external MOSFET, making it suitable for efficient power conversion in various electronic applications.

Manufacturer

The LM5022MMX is manufactured by Texas Instruments (TI), a global technology company headquartered in Dallas, Texas. TI is known for designing and manufacturing semiconductors and various integrated circuits, which are used in a broad array of electronic devices. The company serves multiple industries, including automotive, industrial, personal electronics, communications equipment, and enterprise systems.

Application

The LM5022MMX is a high-voltage, low-side N-channel MOSFET controller primarily used in boost and SEPIC (Single-Ended Primary Inductor Converter) converter applications. It is suitable for applications such as LED drivers, battery-powered systems, distributed power systems, automotive electronics, and industrial power supplies where high efficiency and compact solution size are critical. Its ability to operate over a wide input voltage range makes it versatile for various power management solutions.

Equivalent

The LM5022MMX is a high-voltage, low-side N-channel MOSFET controller for boost and flyback regulators. Equivalent products could include:
1. TI LM3481 - A similar boost controller with adjustable frequency.
2. Linear Technology LTC1871 - Offers similar functionality for high-voltage boost applications.
3. ON Semiconductor NCP3063 - A versatile controller for step-up, step-down, and inverting applications.
Ensure to compare specifications like input voltage range, frequency, and performance in your specific application to find the most suitable equivalent.

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