MAX6641 Datasheet (SMBus-Compatible Temperature Monitor)

Part: MAX6641
Manufacturer: Maxim Integrated (official site)
Size: 169.77 KB

MAX6641 Key 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
OT Output for Throttling or Shutdown

Related Maxim Integrated Datasheets

Part Number	Description
MAX6640	2-Channel Temperature Monitor
MAX6642	SMBus-Compatible Remote/Local Temperature Sensor
MAX6643	Automatic PWM Fan-Speed Controllers
MAX6644	Automatic PWM Fan-Speed Controllers
MAX6645	Automatic PWM Fan-Speed Controllers

MAX6641 Description

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 mon-collector pnp on a CPU, FPGA, or ASIC.