Overview
The LMG5200MOFR from Texas Instruments is an integrated power stage solution that combines an 80-V, 10-A driver with a GaN half-bridge power stage. This device utilizes enhancement-mode Gallium Nitride (GaN) FETs, offering significant advantages in power conversion due to their near zero reverse recovery and very small input capacitance. The LMG5200MOFR is designed for high-frequency, high-efficiency operation in a compact form factor, making it ideal for various power conversion applications. It features a bond-wire free package platform with minimized package parasitic elements, ensuring high slew rate switching without excessive ringing. The device is available in a 6 mm × 8 mm × 2 mm lead-free package, facilitating easy mounting on PCBs.
Key Specifications
| Parameter | Value |
|---|---|
| Supply Voltage | 4.75V ~ 5.25V |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Package Type | 9-QFN (6x8 mm) |
| Output Configuration | Half Bridge |
| Load Voltage | 80V (Continuous), 100V (Pulsed) |
| Peak Output Current | 10A |
| Rds On (Typical) | 15mΩ (Both High-Side and Low-Side) |
| Fault Protection | UVLO (Undervoltage Lockout) |
| Switching Frequency | Up to 10 MHz |
| Propagation Delay | 29.5 ns (Typical) |
| Propagation Delay Matching | 2 ns (Typical) |
Key Features
- Integrated 15-mΩ GaN FETs and high-frequency GaN FET driver in a half-bridge configuration.
- Package optimized for easy PCB layout, eliminating the need for underfill, creepage, and clearance requirements.
- Very low common source inductance to ensure high slew rate switching without excessive ringing.
- Internal bootstrap supply voltage clamping to prevent GaN FET overdrive.
- Supply rail undervoltage lockout protection.
- TTL logic compatible inputs that can withstand input voltages up to 12V regardless of the VCC voltage.
- Ideal for isolated and non-isolated applications.
Applications
- Wide VIN multi-MHz synchronous buck converters.
- Class D amplifiers for audio.
- 48-V point-of-load (POL) converters for telecom, industrial, and enterprise computing.
- High power density single- and three-phase motor drives.
Q & A
- What is the LMG5200MOFR? The LMG5200MOFR is an integrated power stage solution combining an 80-V, 10-A driver with a GaN half-bridge power stage from Texas Instruments.
- What are the key advantages of using GaN FETs in the LMG5200MOFR? GaN FETs offer near zero reverse recovery and very small input capacitance, making them ideal for high-frequency, high-efficiency power conversion.
- What is the operating temperature range of the LMG5200MOFR? The operating temperature range is -40°C to 125°C (TJ).
- What is the maximum load voltage the LMG5200MOFR can handle? The device can handle a continuous load voltage of 80V and a pulsed voltage of 100V.
- What is the typical propagation delay of the LMG5200MOFR? The typical propagation delay is 29.5 ns.
- Does the LMG5200MOFR have built-in fault protection? Yes, it includes undervoltage lockout (UVLO) protection.
- What is the maximum switching frequency of the LMG5200MOFR? The device can switch up to 10 MHz.
- Is the LMG5200MOFR suitable for both isolated and non-isolated applications? Yes, it is suitable for both isolated and non-isolated applications.
- What type of package does the LMG5200MOFR come in? It comes in a 9-QFN package with dimensions of 6 mm × 8 mm × 2 mm.
- Can the inputs of the LMG5200MOFR be directly connected to an analog PWM controller? Yes, the inputs can withstand voltages up to 12V regardless of the VCC voltage, allowing direct connection to an analog PWM controller.
