Overview
The LM5002MA is a high-voltage switch mode regulator manufactured by Texas Instruments. It is designed for efficient high-voltage applications, integrating a 75V N-Channel MOSFET with a 0.5A peak current limit. This regulator is suitable for various DC-DC power conversion topologies, including boost, flyback, SEPIC, and forward converters. Its ultra-wide input voltage range of 3.1V to 75V makes it versatile for industrial, communication, and automotive applications. The LM5002MA is available in SOIC-8 and WSON-8 packages, offering flexibility in design and integration.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Input Voltage Range | 3.1 - 75 | V | |
| Output Voltage Range | 1.26 - 75 | V | |
| Switch Current Limit (Typ) | 0.5 | A | |
| Switching Frequency Range | 50 - 1500 | kHz | |
| Quiescent Current (Typ) | 3.1 | mA | |
| Duty Cycle (Max) | 85 | % | |
| Operating Temperature Range | -40 to 125 | °C | |
| Package | SOIC-8, WSON-8 |
Key Features
- Integrated 75V N-Channel MOSFET
- Ultra-wide input voltage range (3.1V to 75V)
- Current mode control with selectable compensation
- Adjustable output voltage with 1.5% accuracy
- Integrated current sensing and limiting
- Frequency synchronization and enable features
- Thermal shutdown and under-voltage lockout protection
Applications
The LM5002MA is widely used in industrial, communication, and automotive applications. It is particularly suitable for DC-DC power supplies in systems requiring high efficiency and reliability. Common applications include boost, flyback, SEPIC, and forward converters. Its robust design and protection features make it ideal for environments with fluctuating input voltages and demanding operational conditions.
Q & A
1. What is the input voltage range of the LM5002MA?
The input voltage range is 3.1V to 75V.
2. What is the maximum output voltage of the LM5002MA?
The maximum output voltage is 75V.
3. What is the typical switch current limit of the LM5002MA?
The typical switch current limit is 0.5A.
4. What are the available packages for the LM5002MA?
It is available in SOIC-8 and WSON-8 packages.
5. What is the operating temperature range of the LM5002MA?
The operating temperature range is -40°C to 125°C.
6. Does the LM5002MA support frequency synchronization?
Yes, it supports frequency synchronization.
7. What protection features does the LM5002MA offer?
It offers thermal shutdown, under-voltage lockout, and current limiting.
8. What is the typical quiescent current of the LM5002MA?
The typical quiescent current is 3.1mA.
9. Can the LM5002MA be used in automotive applications?
Yes, it is suitable for automotive applications.
10. What is the maximum duty cycle of the LM5002MA?
The maximum duty cycle is 85%.
