Overview
The LMG1025-Q1, produced by Texas Instruments, is a single-channel low-side enhancement-mode GaN FET and logic-level MOSFET driver. It is specifically designed for high switching frequency automotive applications. This driver is notable for its narrow pulse width capability, fast switching specifications, and minimal pulse distortion, which significantly enhance the performance of LiDAR, Time-of-Flight (ToF), and power converter systems. The device is AEC-Q100 grade 1 qualified, ensuring it meets stringent automotive reliability standards.
Key Specifications
| Parameter | Typical Value | Unit |
|---|---|---|
| Minimum Input Pulse Width | 1.25 | ns |
| Rising Propagation Delay | 2.6 | ns |
| Falling Propagation Delay | 2.9 | ns |
| Pulse Distortion | 300 | ps |
| Pull-up Current | 7 | A |
| Pull-down Current | 5 | A |
| Rise Time (220-pF load) | 650 | ps |
| Fall Time (220-pF load) | 850 | ps |
| Package Type | WSON-6 (2x2 mm) | |
| Supply Voltage | 5 V | |
| Operating Temperature Range | -40 to 125 | °C |
Key Features
- AEC-Q100 grade 1 qualified for automotive reliability.
- Inverting and non-inverting inputs for flexible configuration.
- Undervoltage lockout (UVLO) and over-temperature protection (OTP) for fault protection.
- Independent 7-A pull-up and 5-A pull-down current for robust driving capability.
- Split output allows drive strength and timing to be independently adjusted through external resistors.
- Compact, leadless 2-mm x 2-mm QFN package to meet size and gate loop inductance requirements.
Applications
The LMG1025-Q1 is designed for high switching frequency automotive applications, particularly enhancing the performance of:
- LiDAR (Light Detection and Ranging) systems, enabling more powerful and eye-safe diode pulses.
- Time-of-Flight (ToF) systems, leading to longer-range and precise measurements.
- Power converters, improving control loop response time and overall system performance.
Q & A
- What is the LMG1025-Q1 used for?
The LMG1025-Q1 is a single-channel low-side enhancement-mode GaN FET and logic-level MOSFET driver designed for high switching frequency automotive applications.
- What are the key benefits of the LMG1025-Q1 in LiDAR and ToF systems?
The device offers narrow pulse width capability, fast switching specifications, and minimal pulse distortion, enhancing the range and precision of LiDAR and ToF systems.
- What protection features does the LMG1025-Q1 include?
The device features undervoltage lockout (UVLO) and over-temperature protection (OTP) to prevent damage in overload or fault conditions.
- What is the typical minimum input pulse width of the LMG1025-Q1?
The typical minimum input pulse width is 1.25 ns.
- What are the pull-up and pull-down current capabilities of the LMG1025-Q1?
The device has independent 7-A pull-up and 5-A pull-down current capabilities.
- What is the package type and size of the LMG1025-Q1?
The LMG1025-Q1 is available in a compact, leadless 2-mm x 2-mm QFN package.
- What is the operating temperature range of the LMG1025-Q1?
The operating temperature range is -40°C to 125°C.
- Is the LMG1025-Q1 automotive qualified?
Yes, the LMG1025-Q1 is AEC-Q100 grade 1 qualified for automotive reliability.
- How can the drive strength and timing be adjusted in the LMG1025-Q1?
The drive strength and timing can be independently adjusted through external resistors between OUTH, OUTL, and the FET gate.
- What is the supply voltage requirement for the LMG1025-Q1?
The device operates on a single 5-V supply voltage.
