Overview
The LM5022MME/NOPB is a high-performance, wide-input-voltage, current-mode boost, SEPIC, and flyback controller produced by Texas Instruments. This device is designed for use in various power conversion topologies, offering a flexible and easy-to-use control solution. It features a wide input voltage range of 6 V to 60 V, making it suitable for a broad range of applications. The LM5022 includes all the necessary features to implement single-ended primary topologies, such as boost and SEPIC regulators, with output voltage regulation based on current-mode control. This control method simplifies loop compensation and provides inherent input voltage feedforward.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | VSSOP (10-pin) |
| Operating Temperature Range | -40°C to 125°C |
| Input Voltage Range | 6 V to 60 V (operates down to 3 V after start-up) |
| Maximum Duty Cycle | 90% |
| PWM Controller Frequency Range | Up to 2.2 MHz |
| Propagation Delays | |
| MOSFET Gate Driver Peak Current | 1 A |
| Thermal Shutdown Threshold | 165°C |
| Thermal Shutdown Hysteresis | 25°C |
Key Features
- Internal 60-V start-up regulator
- 1-A Peak MOSFET gate driver
- Programmable UVLO with hysteresis
- Cycle-by-cycle current limit
- External synchronizable (AC-coupled)
- Single resistor oscillator frequency set
- Slope compensation
- Adjustable soft start
- Thermal shutdown protection
- Error amplifier and precision reference
- Line undervoltage lockout
Applications
- Boost converters
- SEPIC converters
- Flyback converters
- Industrial equipment
- Automotive electronics
- Telecommunications equipment
- Consumer electronics
- Lighting systems
Q & A
- What is the input voltage range of the LM5022MME/NOPB?
The input voltage range is 6 V to 60 V, and it can operate down to 3 V after start-up.
- What is the maximum duty cycle of the LM5022MME/NOPB?
The maximum duty cycle is 90%.
- What is the oscillator frequency range of the LM5022MME/NOPB?
The oscillator frequency range is up to 2.2 MHz.
- Does the LM5022MME/NOPB have thermal shutdown protection?
Yes, it has thermal shutdown protection that activates at 165°C and has a hysteresis of 25°C.
- What type of package is the LM5022MME/NOPB available in?
The LM5022MME/NOPB is available in a 10-pin VSSOP package.
- What are the key applications of the LM5022MME/NOPB?
Key applications include boost converters, SEPIC converters, flyback converters, industrial equipment, automotive electronics, telecommunications equipment, consumer electronics, and lighting systems.
- Does the LM5022MME/NOPB support external synchronization?
Yes, it supports external synchronization (AC-coupled).
- What is the peak current capability of the MOSFET gate driver in the LM5022MME/NOPB?
The MOSFET gate driver can source and sink a peak current of 1 A.
- Does the LM5022MME/NOPB have slope compensation?
Yes, it includes slope compensation to prevent subharmonic oscillation in current-mode control circuits.
- Is the LM5022MME/NOPB currently in production?
Yes, the LM5022MME/NOPB is an active product and is currently in production.
