INA3221AIRGVR Triple-Channel Current and Bus Voltage Monitor
Three-channel high-side current and bus voltage monitor with I2C/SMBus interface, 13-bit ADC, 0-26V bus range, 2.7-5.5V supply, critical/warning/PV/TC alert outputs, -40 to +125 C.
Aliase:INA3221AIRGVR
VQFN-16 Top View
17 Pins
Pinout Table17
| Pin | Signal / Name | Type | Alternative Functions |
|---|---|---|---|
| 1 | IN-3 | Analog | Channel 3 shunt load side, bus voltage sense |
| 2 | IN+3 | Analog | Channel 3 shunt supply side |
| 3 | GND | Ground | Ground |
| 4 | VS | Power | Power supply 2.7V to 5.5V |
| 5 | A0 | Digital | Address pin: GND, SCL, SDA or VS |
| 6 | SCL | Digital | Serial bus clock, open-drain input |
| 7 | SDA | Digital | Serial bus data, open-drain I/O |
| 8 | Warning | Digital | Averaged measurement warning alert, open-drain |
| 9 | Critical | Digital | Conversion-triggered critical alert, open-drain |
| 10 | PV | Digital | Power valid alert, open-drain |
| 11 | IN-1 | Analog | Channel 1 shunt load side, bus voltage sense |
| 12 | IN+1 | Analog | Channel 1 shunt supply side |
| 13 | TC | Digital | Timing control alert, open-drain |
| 14 | IN-2 | Analog | Channel 2 shunt load side, bus voltage sense |
| 15 | IN+2 | Analog | Channel 2 shunt supply side |
| 16 | VPU | Analog | Pull-up supply for power valid output circuitry |
| EP | Thermal Pad | NC | Must be connected to ground or left floating |