Analog Devices Inc./Maxim Integrated MAX31790ATI+T
| Parameters | |
|---|---|
| Series | - |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | 28-WFQFN Exposed Pad |
| Interface | I²C |
| Mfr | Analog Devices Inc./Maxim Integrated |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 125°C (TA) |
| Technology | Power MOSFET |
| Applications | Fan Motor Driver |
| Current - Output | - |
| Supplier Device Package | 28-TQFN (4x4) |
| Output Configuration | Low Side (6) |
| Function | Driver - Fully Integrated, Control and Power Stage |
| Voltage - Supply | 3V ~ 5.5V |
| Voltage - Load | - |
| Motor Type - Stepper | - |
| Motor Type - AC, DC | Brushless DC (BLDC) |
| Step Resolution | - |
| Package | Tape & Reel (TR) |
| Product Status | Active |
| Base Product Number | MAX31790 |
| REACH Status | REACH Unaffected |
| Standard Package | 2,500 |
| ECCN | EAR99 |
| HTSUS | 8542.31.0001 |
The MAX31790ATI+T is a 6-channel PWM output fan RPM controller manufactured by Analog Devices. The controller ic is designed to provide precise fan control and monitoring for large fan volume applications. It is capable of controlling up to six independent fans, driven via PWM, and has up to 12 tachometer inputs that can be used to precisely monitor and control the RPM of the fan, as well as detect fan failures. The MAX31790ATI+T also provides a controlled duty cycle change rate for optimal acoustic performance and communicates via an I²C bus interface with timeout and watchdog capabilities. It operates in the supply voltage range from 3.0V to 5.5V and operates stably in the temperature range from -40°C to +125°C, typically in a 28-pin TQFN package.
MAX31790ATI+T Features
- Control up to six separate fans with PWM drive
- Provides up to 12 tachometer inputs for precise monitoring of fan RPM
- Controlled duty cycle change rate to reduce noise generated by fan control
-I ²C bus interface with timeout and watchdog control
- Supply voltage range from 3.0V to 5.5V
- Operating temperature range from -40°C to +125°C
MAX31790ATI+T Applications
The MAX31790ATI+T is widely used in areas where efficient fan control is required, including:
1. Network devices, such as routers and switches, for heat dissipation and temperature management
2. Server: Control fans in the data center and server racks to maintain a proper operating temperature
3. Telecommunication equipment: Control the fans of base stations and switching equipment to ensure the stable operation of equipment
4. Industrial control systems: Manage heat dissipation in automation and control applications
