General Description
The RT6056 is a high accuracy current-sense monitor
with an I2C and SMBUS interface, and the device
provides full information for system by reading out the
load current and power.
The device monitors both of the drops across sense
resistor and the BUS voltage, converts into the current
in amperes, and power in watts through internal analogto-
digital converter ADC. The programmable calibration,
adjustable conversion time, and averaging function are
also built in for more design flexibility.
The RT6056 provides a wide temperature environment
from −40C to 125C and operates with an input voltage
from 2.7V to 5.5V. The device senses the current on
common-mode bus voltage with 0V to 36V.
The RT6056 also provides an alert function with opendrain
output, and it provides the full protection by giving
a warning to host from over-current, over-voltage and
over-power situation.
The RT6056 is available in a small MSOP-10 package.

Features
⚫ I2C and SMBUS Compatible Interface
⚫ Bi-Direction Current Sensing, Available for High-
Side or Low-Side Sensing
⚫ 2.7V to 5.5V Operation Supply Voltage Range
⚫ Monitor Bus Voltage from 0V to 36V
⚫ High Accuracy, Max 0.12% Gain Error
⚫ Low Offset Voltage, Max 10V Offset
⚫ Current, Bus Voltage and System Power
Reporting
⚫ Programmable Warning Threshold
⚫ Over-Current, Over-Voltage and Over-Power Alert
⚫ MSOP-10 Package

Applications
⚫ Servers, Storage and Network Equipment
⚫ Portable, Battery-Powered Systems
⚫ Point of Load (POL) Power Modules
⚫ Notebook Computers
⚫ High End Digital TV