-48V Telecom Current/Voltage/Power Sense with Isolation
TIDA-00313
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
See the Important Notice and Disclaimer covering reference designs and other TI resources.
Description
This verified design can accurately measure current, voltage and power on a bus that carries -48V and is able to provide this data using an I²C compatible interface. This design is targeted for Telecom applications because the most common Telecom equipment’s are fed with this negative supply voltage. It uses INA226 and ISO1541. The INA226 is a current shunt and power monitor with an I²C compatible interface. This device will precisely take these measurements and will use ISO1541 to translate the negative voltage to ground referenced signals. The ISO1541 is a low-power, bidirectional I²C compatible isolator.
Features
- Ability to report current, voltage and power on a bus that carries -48V
- High Accuracy:
- 10µV Offset (Max)
- 0.1% Gain Error (Max)
- I²C compatible interface
- Isolation friendly for board to board communication
- I²C compatible isolation translates -48V reference to ground referenced signals
See the Important Notice and Disclaimer covering reference designs and other TI resources.
