Overview
The LM5022MM/NOPB is a high-voltage, low-side, N-channel MOSFET controller produced by Texas Instruments. It is designed for use in boost and SEPIC regulators, offering a comprehensive set of features to implement single-ended primary topologies. The device operates over a wide input voltage range of 6 V to 60 V and is based on current-mode control, which simplifies loop compensation and provides inherent input voltage feedforward. The LM5022MM/NOPB is available in a 10-pin VSSOP package and is suitable for high-speed applications with an oscillator frequency range up to 2.2 MHz and total propagation delays less than 100 ns.
Key Specifications
| Parameter | Value |
|---|---|
| Maximum Operating Supply Voltage | 60 V |
| Maximum Switching Frequency | 2.2 MHz |
| Maximum Output Current | 10 A |
| Typical Quiescent Current | 3.5 mA |
| Operating Temperature Range | -40°C to 125°C |
| Package Type | VSSOP |
| Pin Count | 10 |
| Dimensions | 3 mm x 3 mm x 0.86 mm |
| Duty Cycle (Max) | 90% |
| Maximum Supply Current | 4 mA |
Key Features
- High-voltage start-up regulator operating over a wide input range of 6 V to 60 V
- Current-mode control for simplified loop compensation and inherent input voltage feedforward
- High-speed capability with oscillator frequency range up to 2.2 MHz and total propagation delays less than 100 ns
- Error amplifier, precision reference, line undervoltage lockout, cycle-by-cycle current limit, slope compensation, and soft start
- External synchronization capability and thermal shutdown
- Internal gate driver capable of sourcing and sinking a peak current of 1 A
Applications
- Boost converters
- SEPIC converters
- High-power LED drivers
- Isolated and non-isolated DC/DC converters
- High-voltage flyback converters
Q & A
- What is the maximum operating supply voltage of the LM5022MM/NOPB?
The maximum operating supply voltage is 60 V. - What is the maximum switching frequency of the LM5022MM/NOPB?
The maximum switching frequency is up to 2.2 MHz. - What is the typical quiescent current of the LM5022MM/NOPB?
The typical quiescent current is 3.5 mA. - What is the operating temperature range of the LM5022MM/NOPB?
The operating temperature range is -40°C to 125°C. - What package type is the LM5022MM/NOPB available in?
The LM5022MM/NOPB is available in a 10-pin VSSOP package. - What are the key features of the LM5022MM/NOPB?
The key features include high-voltage start-up regulator, current-mode control, high-speed capability, error amplifier, precision reference, line undervoltage lockout, cycle-by-cycle current limit, slope compensation, soft start, external synchronization capability, and thermal shutdown. - What are the typical applications of the LM5022MM/NOPB?
The typical applications include boost converters, SEPIC converters, high-power LED drivers, isolated and non-isolated DC/DC converters, and high-voltage flyback converters. - How does the LM5022MM/NOPB handle thermal protection?
The LM5022MM/NOPB includes thermal shutdown circuitry that protects the device by forcing it into a low power standby state if the maximum junction temperature is exceeded. - Can the LM5022MM/NOPB be synchronized externally?
Yes, the LM5022MM/NOPB has an external synchronization capability. - What is the maximum duty cycle of the LM5022MM/NOPB?
The maximum duty cycle is 90%.
