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MIC502 - Fan Management IC Advance Information

Description

The MIC502 is a thermal and fan management IC which supports the

Features

  • for NLX/ATX power supplies and other control.

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Datasheet Details

Part number MIC502
Manufacturer Micrel Semiconductor
File Size 130.32 KB
Description Fan Management IC Advance Information
Datasheet download datasheet MIC502 Datasheet
Additional preview pages of the MIC502 datasheet.

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Full PDF Text Transcription

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MIC502 Micrel MIC502 Fan Management IC Advance Information General Description The MIC502 is a thermal and fan management IC which supports the features for NLX/ATX power supplies and other control applications. Fan speed is determined by an external temperature sensor, typically a thermistor-resistor divider, and (optionally) a second signal, such as the NLX “FanC” signal. The MIC502 produces a low-frequency pulse-width modulated output for driving an external motor drive transistor. Low-frequency PWM speed control allows operation of standard brushless dc fans at low duty cycle for reduced acoustic noise and permits the use of a very small power transistor. The PWM time base is determined by an external capacitor.
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