STMICROELECTRONICS REVEALS PRECISION DIGITAL POWER MONITOR

STMicroelectronics has introduced the TSC1641 precision digital current, voltage, and power monitor with high-precision input channels and support for the MIPI I3C advanced bus interface.

The IC monitors DC current and DC voltage simultaneously through a dual-channel 16-bit analog-to-digital converter (ADC) and computes power internally. Synchronizing the current and voltage measurements allows highly accurate power calculations.

With I2C and SMBus host communications, in addition to MIPI I3C, the new device reports measurements and warns of excessively high or low current, voltage, power, and temperature to prevent circuit damage. The IC also provides an alert pin to indicate warnings and saves external components by integrating the sensor for temperature monitoring.

With a voltage measurement range up to 60V, the TSC1641 can be used in a wide variety of industrial settings. Monitoring current with an external shunt resistor allows flexibility to perform high-side, low-side, and bi-directional measurements. Drawing just 50nA in shutdown mode ensures minimal impact on the overall system power consumption.

The MIPI I3C interface allows designers to connect the TSC1641 directly to state-of-the-art microcontrollers such as ST’s STM32H5 series, to assist system supervision. The interface supports data rates up to 12.5MHz and requires no pull-up resistors, which helps reduce the bill of materials and saves board space.