LM3822 |
Part Number | LM3822 |
Manufacturer | National Semiconductor |
Description | The LM3822 Current Gauge provides easy to use precision current measurement with virtually zero insertion loss (typically 0.003Ω). The LM3822 is used for high-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 or. |
Features | n No external sense element required n PWM output indicates the current magnitude and direction n PWM output is easily interfaced with microprocessors and controllers n Precision ∆Σ current-sense technique n Low temperature sensitivity n Internal filtering rejects false trips n Internal Power-On-Reset (POR) n DC Offset is less than 1 mA for 1A part Applications n n n n Battery charge/discharge gauge Motion control diagnostics Power supply load monitoring and management Resettable smart fuse Connection Diagram DS101249-1 Top View LM3822 for High-Side Sensing © 2000 National Semiconductor C. |
Datasheet |
LM3822 Data Sheet
PDF 265.20KB |
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