INA231 in INA219 / INA226 Current Sensors Family
The INA231 family from Texas Instruments consists of high-accuracy current, voltage, and power shunt monitors featuring an I2C and SMBus-compatible interface. Designed for high-side or low-side sensing, these digital power monitors measure bus voltages from 0V to 28V. By integrating a programmable ADC with an internal multiplier, the INA231 provides direct readouts of current in Amperes and power in Watts, offloading intensive processing tasks from the host microcontroller in complex power management systems.
Variants in This Sub-Family
Comparing specs that differ across variants.
| Part Number | Package | Stock |
|---|---|---|
| INA231AIYFFR (Texas Instruments) | UFBGA-12 | 37,393 |
| INA231AIYFDR (Texas Instruments) | XFBGA-12 | 3,177 |
Variants within the INA231 sub-family primarily differ in their physical packaging and tape-and-reel specifications. The AIYFFR and AIYFDR variants both utilize the 12-DSBGA chip-scale package, providing the smallest possible footprint for space-critical PCB layouts. While the core electrical specifications remain identical across the A-suffix devices, engineers should verify the specific package dimensions and ball pitch to ensure compatibility with their assembly process and thermal management requirements.
