EMC2300 Datasheet, PDF (1/81 Pages) SMSC Corporation – Fan Control Device with High Frequency PWM and Temperature Monitors

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
— 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
— 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
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)