# I2C-INA-BM

**Artikelnr.:** PM-6448 | **HAN:** I2C-INA-BM

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## **Matek Präzisions Digital Power Monitor I2C-  I2C-INA-BM**

* I2C-INA-BM is an ultra-precise digital power monitor based on TI INA228.
* The resistance of this conductive path is 200 μΩ typical, providing low power loss in the application.
* Support 3x I2C-INA-BM on one I2C bus in parallel.
* No calibration required, Flight controller with ArduPilot fw can easily get accurate current & bus voltage readouts via I2C bus.

### **Specifications**

* INA228 85-V, 20-Bit, Ultra-Precise Power monitor IC With I2C Interface
* Battery Voltage sense input: 0\~85V
* Current Sense Range: 0\~204.8A
* Load current on current sensing resistor: 150A(Continuous), 204.8A(Burst)
* Voltage accuracy: ± 0.1%
* Current accuracy: ± 2%
* Interface: I2C (Decimalism Address 69 by default, 68 and 65 options)
* Power supply for I2C-INA-BM board : 4\~9V @5V pad/pin
* Power consumption: 1mA
* LED Red, 3.3V indicator
* Operating Temperatures: -40\~125 °C
* Physical
* Board Size: 27mm\*20mm\*6mm. 4g
* Parameters
* BATT\*\_MONITOR ->21 (INA2XX)
* BATT\*\_I2C\_ADDR -> 0 (or 69, 68, 65)
* BATT\*\_I2C\_BUS -> 0/1/2 , depends on the FC I2C bus connected
* BATT\*\_SHUNT -> 0.0002
* BATT\*\_MAX\_AMPS -> 204.8

### **Packing**

* 1x I2C-INA-BM board
* 1x JST-GH-4P to JST-GH-4P 20cm silicon wire

### **Tips**

* The big pad on the bottom side is a dead pad. No any circuit network on it.
* Solder the positive wires as close as possible to both sides of the current sensing resistor.
* **Compatible with ArduPilot firmware only now.**


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