EMC2300
Fan Control Device with
High Frequency PWM and
Temperature Monitors
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
Voltage Monitor
— Monitors VCC and VCCP
— Limit Comparison of all Monitored Values
— Interrupt Pin for out-of-limit Voltage Indication
XOR Tree Test Mode
16-Pin SSOP Green, Lead-free Package
Power Savings Modes
— Two monitoring modes: continuous or cycling (for power
savings)
— Two low power modes when monitoring if off: Sleep and
Shutdown
ORDER NUMBER(S):
EMC2300-AZC FOR 16 PIN, SSOP PACKAGE (LEAD-FREE)
EMC2300-AZC-TR FOR 16 PIN, SSOP PACKAGE (LEAD-FREE, TAPE AND REEL)
2800 UNITS FOR 13 INCH REEL, 97 UNITS PER TUBE
SMSC EMC2300
DATASHEET
Revision 0.2 (06-14-06)
SMSC [ SMSC CORPORATION ]
