EMC2302 _ BDTIC 中国领先电子元器件代理商

EMC2302

The EMC2302 is an SMBus compliant fan controller with up to two independently controlled PWM fan drivers. Each fan driver is controlled by a programmable frequency PWM driver and Fan Speed Control algorithm that operates in either a closed loop fashion or as a directly PWM-controlled device.

The closed loop Fan Speed Control algorithm (FSC) has the capability to detect aging fans and alert the system. It will likewise detect stalled or locked fans and trigger an interrupt.

Additionally, the EMC2302 offers a clock output so that multiple devices may be chained and slaved to the same clock source for optimal performance in large distributed systems.

产品特性

Two Programmable Fan Control circuits 4-wire fan compatible High speed PWM (26 kHz) Low speed PWM (9.5Hz - 2240 Hz) Optional detection of aging fans Fan Spin Up Control and Ramp Rate Control Alert on Fan Stall
4-wire fan compatible
High speed PWM (26 kHz)
Low speed PWM (9.5Hz - 2240 Hz)
Optional detection of aging fans
Fan Spin Up Control and Ramp Rate Control
Alert on Fan Stall
Watchdog Timer
RPM-based fan control algorithm 0.5% accuracy from 500 RPM to 16k RPM (external crystal oscillator) 1% accuracy from 500 RPM to 16k RPM (internal clock)
0.5% accuracy from 500 RPM to 16k RPM (external crystal oscillator)
1% accuracy from 500 RPM to 16k RPM (internal clock)
SMBus 2.0 Compliant SMBus Alert compatible
SMBus Alert compatible
CLK Pin can provide a clock source output
Available in a 10-pin MSOP RoHS Compliant package
Servers
Projectors
Industrial and Networking Equipment
Notebook Computers

技术参数

aspxParamName aspxParamValue	aspxParamValue
comments Multi-Fan Speed Controller	Multi-Fan Speed Controller
# Fans Drivers 2	2
PWM/Linear Control PWM	PWM
Typical Accuracy N/A	N/A
Max Accuracy N/A	N/A
Maximum Temperature Range -40 to 125	-40 to 125
Vcc Range (V) 3.0 to 3.6	3.0 to 3.6
SMBus Alert Yes	Yes
Voltage Monitors N/A	N/A

文档资料

EMC2302 Dual RPM-Based PWM Fan Controller Data Sheet	Data Sheets	05/18/2011	636KB
AN17.4 - RPM to TACH Counts Conversion	AppNote	05/05/2009	447KB
EMC2302 Dual RPM-Based PWM Fan Controller Data Brief	Product Briefs	05/18/2011	167KB
EMC2302 Library Part, Object Library File	Schematics	02/10/2009	6KB
EMC2302 Reference Design Schematic, PDF	Schematics	02/11/2009	22KB

订购型号

Part Number	Leads	Package Type	Temp Range	Packing	1+	26+	100+	1000+	5000+
EMC2302-1-AIZL-TR	10	MSOP	-40C to +125C	T/R	1.09	0.91	0.82	0.80	0.79
EMC2302-2-AIZL-TR	10	MSOP	-40C to +125C	T/R	1.09	0.91	0.82	0.80	0.79

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