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Ina237 Dc Current Voltage Power Monitor
Adafruit
The Ina237 Dc Current Voltage Power Monitor is a power monitoring chip with I2C interface, capable of measuring high or low side DC current and voltage up to +85V.
In stock
Specifications
3- Operating Voltage
- 3V or 5V
- Logic Level
- 3-5V
- Connectivity
- I2C
Pinout
8| Pin | Name | Functions | Notes |
|---|---|---|---|
| VIN | Power Pin | POWER | Can be powered by 3V or 5V. |
| GND | Ground | GND | Common ground for power and logic. |
| SCL | I2C Clock Pin | I2C | Connect to your microcontroller's I2C clock line. 3-5V logic, with a 10K pullup. |
| SDA | I2C Data Pin | I2C | Connect to your microcontroller's I2C data line. 3-5V logic, with a 10K pullup. |
| ALRT | Interrupt Pin | GPIO | Active low by default. |
| VIN+ | Positive Input Pin | GPIO | For high-side measurement, connect to the highest project voltage. For low-side measurement, connect to load's lowest potential. |
| VIN- | Negative Input Pin | GPIO | For high-side measurement, connect to load's highest potential. For low-side measurement, connect to ground. |
| VBUS | Bus Voltage Input Pin | GPIO | Connect VBUS to the highest project voltage for high-side measurement; leave open for low-side measurement. |
Interactive pinout
Highlight:
BOARD
Click a pin to copy its name · tap a tag above to spotlight a bus.