MAX6641
Info: : PRODUCTION
searchIcon
cartIcon

MAX6641

SMBus-Compatible Temperature Monitor with Automatic PWM Fan-Speed Controller

Show More showmore-icon

Industry's Smallest, Single Temperature Sensor and Fan Controller in MSOP Package

Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 4
1ku List Price Starting From $1.83
Features
  • Tiny 3mm x 5mm µMAX Package
  • Thermal Diode Input
  • Local Temperature Sensor
  • Open-Drain PWM Output for Fan Drive
  • Programmable Fan Control Characteristics
  • Automatic Fan Spin-Up Ensures Fan Start
  • ±1°C Remote Temperature Accuracy (+60°C to +145°C)
  • Controlled Rate of Change Ensures Unobtrusive Fan-Speed Adjustments
  • Temperature Monitoring Begins at Power-On for Fail-Safe System Protection
  • Active-Low OT Output for Throttling or Shutdown
Additional Details
show more Icon

The MAX6641 temperature sensor and fan controller accurately measures the temperature of its own die and the temperature of a remote pn junction. The device reports temperature values in digital form using a 2-wire serial interface. The remote pn junction is typically the emitter-base junction of a common-collector pnp on a CPU, FPGA, or ASIC.

The 2-wire serial interface accepts standard System Management Bus (SMBus™) write byte, read byte, send byte, and receive byte commands to read the temperature data and program the alarm thresholds. The temperature data controls a PWM output signal to adjust the speed of a cooling fan, thereby minimizing noise when the system is running cool, but providing maximum cooling when power dissipation increases. The device also features an over-temperature alarm output to generate interrupts, throttle signals, or shut down signals. The MAX6641 operates from supply voltages in the 3.0V to 5.5V range and typically consumes 500µA of supply current.

The MAX6641 is available in a slim 10-pin µMAX® package and is available over the -40°C to +125°C automotive temperature range.

Applications

  • Desktop Computers
  • Industrial
  • Networking Equipment
  • Notebook Computers
  • Servers
  • Workstations
Part Models 4
1ku List Price Starting From $1.83

close icon
Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
MAX6641AUB90+
  • HTML
  • HTML
MAX6641AUB90+T
  • HTML
  • HTML
MAX6641AUB94+
  • HTML
  • HTML
MAX6641AUB94+T
  • HTML
  • HTML

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Sep 19, 2018

- 1753N

ASSEMBLY

MAX6641AUB90+

PRODUCTION

MAX6641AUB90+T

PRODUCTION

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Sep 19, 2018

- 1753N

arrow down

ASSEMBLY

MAX6641AUB90+

PRODUCTION

MAX6641AUB90+T

PRODUCTION

Software & Part Ecosystem

Software & Part Ecosystem

Recently Viewed