Datasheet4U Logo Datasheet4U.com

MAX6650 Datasheet Fan-speed Regulators And Monitors

Manufacturer: Maxim Integrated (now Analog Devices)

Overview: EVALUATION KIT AVAILABLE MAX6650/MAX6651 Fan-Speed Regulators and Monitors with SMBus/I2C-Compatible Interface.

General Description

The MAX6650/MAX6651 fan controllers use an SMBus/I2C-compatible interface to regulate and monitor the speed of 5VDC/12VDC brushless fans with builtin tachometers.

They automatically force the fan’s tachometer frequency (fan speed) to match a preprogrammed value in the Fan-Speed Register by using an external MOSFET or bipolar transistor to linearly regulate the voltage across the fan.

The MAX6650 regulates the speed of a single fan by monitoring its tachometer output.

Key Features

  • Closed/Open-Loop Fan-Speed Control for 5V/12V Fans.
  • 2-Wire SMBus/I2C-Compatible Interface.
  • Monitors Tachometer Output Single Tachometer (MAX6650) Up to Four Tachometers (MAX6651).
  • Programmable Alert Output.
  • GPIOs.
  • Hardware Full-On Override.
  • Synchronize Multiple Fans.
  • Four Selectable Slave Addresses.
  • 3V to 5.5V Supply Voltage.
  • Small Packages 10-Pin µMAX (MAX6650) 16-Pin QSOP (MAX6651) Ordering Information.

MAX6650 Distributor & Price

Compare MAX6650 distributor prices and check real-time stock availability from major suppliers. Prices and inventory may vary by region and order quantity.

More Datasheets from Maxim Integrated (now Analog Devices)

Part Number Description
MAX665 8V CMOS Switched-Capacitor Voltage Converter
MAX6651 Fan-Speed Regulators and Monitors
MAX6652 Temperature Sensor and System Monitor
MAX6653 Temperature Monitors and PWM Fan Controllers
MAX6654 1C Accurate Remote/Local Temperature Sensor
MAX6657 SMBus-Compatible Remote/Local Temperature Sensors
MAX6658 SMBus-Compatible Remote/Local Temperature Sensors
MAX6659 SMBus-Compatible Remote/Local Temperature Sensors
MAX660 CMOS Monolithic Voltage Converter
MAX6605 Low-Power Analog Temperature Sensor