RTQ6056 High-Accuracy Current-Sense Monitor

Richtek’s RTQ6056 is a high-accuracy current-sense monitor with an I²C and SMBus interface. The device provides full information for a system by reading out the load current and power. The device monitors drops across the sense resistor and the bus voltage, converting the current in amperes and the power in watts through an internal analog-to-digital converter (ADC). The programmable calibration, adjustable conversion time, and averaging function are also built in for more design flexibility.

The RTQ6056 provides a wide temperature environment from -40°C to +125°C and operates with an input voltage from 2.7 V to 5.5 V. The device senses the current on common-mode bus voltage with 0 V to 36 V. The RTQ6056 provides an alert function with open-drain output and full protection by giving a warning to the host in overcurrent, overvoltage, and over-power situations. It is available in a small MSOP-10 package.