Overview
The LMG1020YFFR is a high-performance, low-side gate driver designed by Texas Instruments for driving GaN FETs and logic-level MOSFETs in high-speed applications. This device is optimized for minimal propagation delay and is particularly suited for applications requiring fast switching times, such as LiDAR, time-of-flight laser drivers, facial recognition, and various power converters. The LMG1020YFFR features a compact 0.8 mm × 1.2 mm WCSP (Wafer Chip Scale Package) that minimizes gate loop inductance, ensuring high current and low ringing performance at very high frequencies.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | DSBGA-6 (YFF) |
| Supply Voltage | 4.75V to 5.25V |
| Peak Drive Current | 7A source, 5A sink |
| Propagation Delay | 2.5 ns |
| Minimum Pulse Width | 1 ns |
| UVLO (Undervoltage Lockout) | Yes |
| OTP (Overtemperature Protection) | Yes |
| Input Configuration | Single-ended inputs with Schmitt-triggers |
| Output Configuration | Split output (OUTH and OUTL) for independent drive strength adjustment |
Key Features
- High-speed operation with propagation delays as low as 2.5 ns and minimum pulse width of 1 ns.
- Independent adjustable drive strengths for turn-on and turn-off using external resistors.
- Undervoltage lockout (UVLO) and overtemperature protection (OTP) for fault conditions.
- Compact 0.8 mm × 1.2 mm WCSP package to minimize gate loop inductance.
- Split output configuration (OUTH and OUTL) for flexible drive strength control.
- Input stage with Schmitt-triggers to reduce noise sensitivity.
Applications
- LiDAR and time-of-flight laser drivers.
- Facial recognition systems.
- Class-E wireless chargers.
- VHF resonant power converters.
- GaN-based synchronous rectifiers.
- Augmented reality systems.
- High-frequency low-current laser diode drivers.
- Signal buffers with fast rise/fall times.
Q & A
- What is the primary function of the LMG1020YFFR?
The LMG1020YFFR is a low-side gate driver designed for driving GaN FETs and logic-level MOSFETs in high-speed applications. - What is the package type of the LMG1020YFFR?
The LMG1020YFFR comes in a DSBGA-6 (YFF) package. - What are the peak drive current capabilities of the LMG1020YFFR?
The device can source up to 7A and sink up to 5A. - What is the minimum pulse width supported by the LMG1020YFFR?
The minimum pulse width is 1 ns. - Does the LMG1020YFFR have undervoltage lockout and overtemperature protection?
Yes, it features both UVLO and OTP. - How can the drive strengths be adjusted in the LMG1020YFFR?
The drive strengths can be independently adjusted for turn-on and turn-off using external resistors connected to the OUTH and OUTL outputs. - What types of applications is the LMG1020YFFR suited for?
It is suited for applications such as LiDAR, time-of-flight laser drivers, facial recognition, class-E wireless chargers, and more. - What is the significance of the compact WCSP package?
The compact package minimizes gate loop inductance, ensuring high current and low ringing performance at high frequencies. - Can the LMG1020YFFR be used as a signal buffer?
Yes, it can be used as a signal buffer with very fast rise/fall times. - How does the input stage of the LMG1020YFFR reduce noise sensitivity?
The input stage features Schmitt-triggers to reduce sensitivity to noise on the inputs.
