EMC6D103
Fan Control Device with
High Frequency PWM
Support and Hardware
Monitoring Features
PRODUCT FEATURES
3.3 Volt Operation (5 Volt Tolerant Input Buffers)
SMBus 2.0 Compliant Interface (Fixed, not
Discoverable) with Three Slave Address Options
Fan Control
— PWM (Pulse width Modulation) Outputs (3)
— Fan Tachometer Inputs (4)
— Programmable automatic fan control based on
temperature
— Backwards compatible with fans requiring lower
frequency PWM drive
— High frequency fan support for 4 wire fans
— One fan can be controlled from as many as 3
temperature zones
— Fan ramp rate control for acoustic noise reduction
Datasheet
Temperature Monitor
— Monitoring of Two Remote Thermal Diodes (+/- 3 deg
C accuracy)
— Internal Ambient Temperature Measurement
— Limit Comparison of all Monitored Values
— Interrupt Pin for out-of-limit Temperature Indication
— Configurable offset for internal or external temperature
channels.
Voltage Monitor
— Monitor Power supplies (+2.5V, +5V, +12V, Vccp, and
VCC)
— Limit Comparison of all Monitored Values
— Interrupt Pin for out-of-limit Voltage Indication
Power Savings Modes
— Two monitoring modes: continuous or cycling (for power
savings)
— Two low power modes when monitoring if off: Sleep and
Shutdown
5 VID (Voltage Identification) Inputs
XOR Tree Test Mode
24-Pin, SSOP Lead-Free RoHS Compliant Packages
ORDER NUMBERS:
EMC6D103-CZC FOR 24 PIN, SSOP LEAD-FREE ROHS COMPLIANT PACKAGE
EMC6D103-CZC-TR FOR 24 PIN, SSOP LEAD-FREE ROHS COMPLIANT PACKAGE (TAPE AND REEL)
EVALUATION BOARD IS AVAILABLE
SMSC EMC6D103
DATASHEET
Revision 0.3 (03-01-07)