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The EMC2300 is an environmental monitoring device with automatic fan control capability. This ACPI compliant device provides hardware monitoring for up to two voltages and three thermal zones, measures the speed of up to four fans, and controls the speed of multiple DC fans using Pulse Width Modulator (PWM) outputs. High frequency and low frequency PWMs are supported.
The EMC2300 hardware monitor provides analog inputs for monitoring the processor voltage Vccp. This device has the capability to monitor its own internal VCC power supply, which may be connected to either main power (VCC) or the suspend power well (VTR).
The EMC2300 hardware monitor includes support for monitoring three thermal zones: two external and one internal. The external temperatures are measured via thermal diode inputs capable of monitoring remote devices. In addition, the EMC2300 is equipped with an ambient temperature sensor for measuring the internal temperature.
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
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 Degrees 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
XNOR Tree Test Mode
16-Pin SSOP RoHS Compliant Package
EMC2300 封装图
| 型号 | 制造商 | 描述 | 购买 |
|---|---|---|---|
| EMC2300-AZC-TR | SII Semiconductor Corporation | Supervisor Open Drain or Open Collector 1 Channel SOT-23-5 | 立即购买 |
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