Texas Instruments LM3824MM-1.0/NOPB

Description
The LM3824 Current Gauge provides precise current measurement with minimal insertion loss (typically 0.003Ω). It utilizes a Delta Sigma analog-to-digital converter for accurate current measurement and averaging over 6 ms intervals to eliminate current spikes. The IC features a pulse-width modulated (PWM) output that indicates current magnitude and direction. A shutdown pin allows for inhibition of false triggering during startup or entry into low quiescent current mode.

Features
Ultra-low insertion loss (0.003Ω)
2V to 5.5V supply range
±3% accuracy at room temperature for the 1A device (including internal sense element accuracy)
Low quiescent current in shutdown mode (typically 1.8 μA)
6 ms sampling interval
No external sense element required
PWM output indicates current magnitude and direction
PWM output easily interfaced with microprocessors and controllers
Precision ΔΣ current-sense technique
Low temperature sensitivity
Internal filtering rejects false trips
Internal Power-On-Reset (POR)
DC Offset less than 8 mA for 1A part

Applications
Battery charge/discharge gauge
Motion control diagnostics
Power supply load monitoring and management
Resettable smart fuse