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Partname:LM3813MX-1.0
Description:Precision Current Gauge IC with Ultra Low Loss Sense Element and PWM Output, for Low-Side Sensing
Manufacturer:National Semiconductor
Package:SOIC NARROW
Pins:8
Datasheet:PDF (258K).
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The LM3812/LM3813 Current Gauges provide easy to use precision current measurement with virtually zero insertion loss (typically 0.004). The LM3812 is used for high-side sensing and the LM3813 is used for low-side sensing. A Delta Sigma analog to digital converter is incorporated to precisely measure the current and to provide a current averaging function. Current is averaged over 50 msec time periods in order to provide immunity to current spikes. The ICs have a pulse-width modulated (PWM) output which indicates the current magnitude and direction. The shutdown pin can be used to inhibit false triggering during start-up, or to enter a low quiescent current mode.

Click here to download LM3813MX-1.0 Datasheet
Click here to download LM3813MX-1.0 Datasheet
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