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EMC2300_11 Datasheet, PDF (1/82 Pages) SMSC Corporation – Fan Control Device with High Frequency PWM and Temperature Monitors | |||
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EMC2300
Fan Control Device with
High Frequency PWM and
Temperature Monitors
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
â PWM (Pulse width Modulation) Outputs (3)
â Fan Tachometer Inputs (4)
â Programmable automatic fan control based on
temperature
â Backwards compatible with fans requiring lower
frequency PWM drive
â High frequency fan support for 4 wire fans
â One fan can be controlled from as many as 3
temperature zones
â Fan ramp rate control for acoustic noise reduction
 Power Savings Modes
â Two monitoring modes: continuous or cycling (for power
savings)
â Two low power modes when monitoring if off: Sleep and
Shutdown
 Temperature Monitor
â Monitoring of Two Remote Thermal Diodes (+/- 3 deg
C accuracy)
â Internal Ambient Temperature Measurement
â Limit Comparison of all Monitored Values
â Interrupt Pin for out-of-limit Temperature Indication
 Voltage Monitor
â Monitors VCC and VCCP
â Limit Comparison of all Monitored Values
â Interrupt Pin for out-of-limit Voltage Indication
 XOR Tree Test Mode
 16-Pin SSOP Lead-Free RoHS Compliant Package
ORDER NUMBERS:
EMC2300-AZC FOR 16 PIN, SSOP LEAD-FREE ROHS COMPLIANT PACKAGE
EMC2300-AZC-TR FOR 16 PIN, SSOP LEAD-FREE ROHS COMPLIANT PACKAGE (TAPE AND REEL)
2,800 UNITS FOR 13 INCH REEL, 97 UNITS PER TUBE
SMSC EMC2300
DATASHEET
Revision 0.32 (06-23-08)
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