RT6056
High-Side or Low-Side Measurement, Bi-Directional Current
and Power Monitor with 16 Bit ADC and Alert
General Description
The RT6056 is a high accuracy current-sense monitor
Features
⚫ I C and SMBUS Compatible Interface
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⚫ Bi-Direction Current Sensing, Available for High-
Side or Low-Side Sensing
with an I C and SMBUS interface, and the device
provides full information for system by reading out the
load current and power.
⚫ 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 10V Offset
⚫ Current, Bus Voltage and System Power
Reporting
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 analog-
to-digital converter ADC. The programmable calibration,
adjustable conversion time, and averaging function are
also built in for more design flexibility.
⚫ Programmable Warning Threshold
⚫ Over-Current, Over-Voltage and Over-Power Alert
⚫ MSOP-10 Package
The RT6056 provides a wide temperature environment
from −40C to 125C 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.
Applications
⚫ Servers, Storage and Network Equipment
⚫ Portable, Battery-Powered Systems
⚫ Point of Load (POL) Power Modules
⚫ Notebook Computers
The RT6056 also provides an alert function with open-
drain output, and it provides the full protection by giving
a warning to host from over-current, over-voltage and
over-power situation.
⚫ High End Digital TV
The RT6056 is available in a small MSOP-10 package.
The recommended junction temperature range is −40C
to 125C.
Simplified Application Circuit
Power Supply
0V ~ 36V
A1
VBUS
IN+
A0
RSHUNT
IN-
VS
RT6056
Load
Alert
VS
VS
SDA
SCL
GND
Copyright © 2024 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation
DS6056-01 January 2024
www.richtek.com
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