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EMC2302 Datasheet PDF


Part Number EMC2302
Manufacturer SMSC
Title Dual RPM-Based PWM Fan Controller
Description The EMC2302 is an SMBus compliant fan controller with up to two independently controlled PWM fan drivers. Each fan driver is controlled by a progr...
Features Datasheet General Description 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 directl...

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Datasheet EMC2302 PDF File








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EMC2101 : The EMC2101 is an SMBus 2.0 compliant, integrated fan control solution complete with two temperature monitors, one external and one internal. Each temperature channel has programmable high limits that can assert an interrupt. The fan drive is selectable as a Pulse Width Modulator (PWM) or Linear (DAC) output. The fan control output, whether the PWM or DAC drive circuit, uses an eight position look-up table to allow the user to program the fan speed profile based on temperature. The DAC output ranges from 0V to VDD with up to 6 bit resolution while the PWM output has a range of 0% to 100% with up to 64 steps. The EMC2101 has an option to automatically upload the contents of an attached SMBus .

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EMC2300 : 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 pow.

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EMC2301 : The EMC2301 is an SMBus compliant fan controller with a PWM fan driver. The 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. Each 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 EMC2301 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. Applications „ Servers „ Projectors „ Industrial and Networking Equipment „ No.

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