The EVQ5872-RP-00A evaluation board is designed to demonstrate the capabilities of the MPQ5872, a smart high-side power switch for a nominal 2A load. It can support a wide 3.5V to 28V input voltage (VIN) range.
The MPQ5872 supports both an internal current limit and a configurable, highly accurate external current limit. These limits clamp the inrush current under short-circuit conditions, which improves system reliability. An adjustable start-up slew rate also helps to reduce inrush current during start-up.
The FT/CS pin provides highly accurate current sensing, which achieves accurate diagnostics in real time without additional calibration. The voltage on the FT/CS pin represents 1 / KCS of the load current, where KCS is a constant value across the temperature and supply voltage ranges. The FT/CS pin can report faults by pulling up its voltage.
The MPQ5872 provides full diagnostic capabilities when it is in both the on and off state. By pulling the DIAG_EN pin up or down, users can enable or disable off-state open load or battery short detection. If the system does not require off-state diagnostics, turn off this function and reduce the standby current by connecting the DIAG_EN pin to the GND pin.
The MPQ5872 is available in a QFN-8 (2mmx2.5mm) package, and is available in AEC-Q100 Grade 1 and AEC-Q100-012 Test Grade A.
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