MPQ5864GLTE-AEC1

The MPQ5864-AEC1 is a quad-channel, smart high-side power switch for a nominal current up to 0.8A per channel. The device covers a 5V to 16V input voltage (VINx, where x = A or B) range. With a separate power supply design, the device supports two different input power rails. A back-to-back MOSFET configuration achieves up to 26V for short-to-battery protection. With a small 180mΩ on resistance (RDS(ON)), the MPQ5864-AEC1 provides a highly efficient and compact solution for camera load switch applications. The MPQ5864-AEC1 supports a configurable, high-accuracy current limit via the I2C to clamp the inrush current under short-circuit conditions, which improves system reliability. A selectable start-up slew rate also helps to reduce the inrush current during start-up. In addition, a fast-off function can quickly turn off the device if the channel current increases sharply. The MPQ5864-AEC1 communicates to the microcontroller unit (MCU) via the I2C interface. The device supports up to 6 addresses set via an external resistor. With the help of an internal analog-to-digital converter (ADC), the channel currents, supply voltages, reference voltage, and output voltages can be obtained without additional external circuitry. Full diagnostics and protections are developed for the device, including input over-voltage (OV)/under-voltage (UV), output OV for each channel, open-load and short-to-battery detection, over-current protection (OCP), short-circuit protection (SCP) (fast-off), and over-temperature shutdown. The average/peak current detection improves the diagnostic reliability in the driver monitoring system (DMS). The fault status can be reported via the FT pin and I2C interface. The MPQ5864-AEC1 provides well-developed monitoring and diagnostics with an internal ADC. Related safety documentation is also provided to aid functional safety design. The MPQ5864-AEC1 is available in a tiny TQFN-17 (3mmx4mm) package, and it is available in AEC-Q100 Grade 1.