EMC6D103 Datasheet, PDF (1/89 Pages) SMSC Corporation – FAN CONTROL DEVICE WITH HIGH FREQUENCY PWM

EMC6D103
Fan Control Device with
High Frequency PWM
Support and Hardware
Monitoring Features
PRODUCT FEATURES
Datasheet
■ 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
■ Power Savings Modes
— Two monitoring modes: continuous or cycling (for power
savings)
— Two low power modes when monitoring if off: Sleep and
Shutdown
■ 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
■ 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
■ 5 VID (Voltage Identification) Inputs
■ XOR Tree Test Mode
■ 24-Pin SSOP Package; green, lead-free package
also available.
ORDER NUMBER(S):
EMC6D103-CK FOR 24 PIN SSOP PACKAGE
EMC6D103-CK-TR FOR 24 PIN SSOP PACKAGE (TAPE AND REEL)
EMC6D103-CZC FOR 24 PIN SSOP PACKAGE (LEAD FREE)
EMC6D103-CZC-TR FOR 24 PIN SSOP PACKAGE (LEAD FREE, TAPE AND REEL)
Evaluation Board is available.
SMSC EMC6D103
DATASHEET
Revision 0.4 (04-04-05)