Melexis MLX90418 Single-Coil Fan Drivers
Melexis MLX90418 Single-Coil Fan Drivers are 1-coil BLDC motor driver ICs that support replacing legacy sensorless 3-phase motors and can be configured for various applications. The Melexis MLX90418 fan drivers include dedicated features for high-speed server fan applications. With the MLX90418, 1-coil solutions are extended up to 30W in 4cm and 6cm server fans. Code-free plug-and-play functionality avoids the need for software validation of MCU-based solutions, freeing up essential engineering resources for realizing more projects in less time and enabling faster production ramp-up.
Features
- Open and closed-loop speed control
- 40k m-RPM (for 2x pole-pair motors)
- ±1.5% closed-loop speed accuracy
- Soft-switching
- Lead angle control
- Configurable motor start and stop options
- Forward windmilling
- Reverse windmilling
- Universal windmilling
- Integrated bridge driver
- 135mΩ (HS+LS)
- Programmable current limit up to 4.0A
- 8.0A braking current
- Integrated supply clamp
- Operating range
- 6.7V to 18V supply voltage range
- -40°C to +150°C junction temperature range
- Extensive programmability (MTP)
- Sleep mode option
- 8-point configurable speed curves
- Synthesized FG output for easy retrofitting of legacy 3-phase solutions
- Protections and diagnostics
- LRP / UVP / OCP / TSD
- Hot unplug handling with power loss brake option
- AC-power loss management
- DFN10 3.5mm x 3mm package with exposed pad, RoHS-compliant
Applications
- High-speed server cooling fans
- General 12V fans and pumps up to 30W
Resources
Publicado: 2024-05-22
| Actualizado: 2024-07-02