Overview
The INA219AIDCNR is a current shunt and power monitor produced by Texas Instruments. This device features an I²C- or SMBUS-compatible interface and is designed to monitor both shunt voltage drop and bus supply voltage. It offers programmable conversion times and filtering, making it versatile for various power management applications. The INA219AIDCNR is available in two grades: A and B, with the B grade version offering higher accuracy and precision specifications. It operates within a temperature range of -40°C to 125°C and uses a single 3- to 5.5-V supply, drawing a maximum of 1 mA of supply current.
Key Specifications
| Specification | Value |
|---|---|
| Package | SOT-23 (DCN), 8 pins |
| Operating Temperature Range (°C) | -40 to 125 |
| Supply Voltage Range (V) | 3 to 5.5 |
| Maximum Supply Current (mA) | 1 |
| Bus Voltage Range (V) | 0 to 26 |
| Accuracy (Maximum) Over Temperature | 0.5% (INA219B) |
| Interface | I²C or SMBUS-compatible |
| Programmable Addresses | 16 |
| Bandwidth | 3.4 MHz |
Key Features
- Senses bus voltages from 0 to 26 V
- Reports current, voltage, and power
- 16 programmable addresses
- High accuracy: 0.5% (maximum) over temperature (INA219B)
- Filtering options
- Calibration registers
- Available in SOT23-8 and SOIC-8 packages
- Pb-free and RoHS compliant
Applications
- Consumer Electronics: Devices such as smartphones, laptops, and wearables for optimizing battery life and performance through precise monitoring of current and power consumption.
- Industrial Automation: Monitoring the efficiency and power consumption of industrial machinery and control systems.
- Telecommunications: Monitoring power supply status and consumption in telecom hardware.
- Computing and Data Storage: Managing power supply distribution and efficiency in servers and storage devices.
- Electronic Manufacturing: Precise power consumption measurement during device assembly and testing.
Q & A
- What is the operating temperature range of the INA219AIDCNR?
The INA219AIDCNR operates within a temperature range of -40°C to 125°C.
- What is the supply voltage range for the INA219AIDCNR?
The device uses a single 3- to 5.5-V supply.
- What is the maximum supply current of the INA219AIDCNR?
The maximum supply current is 1 mA.
- What is the bus voltage range that the INA219AIDCNR can sense?
The device can sense bus voltages from 0 to 26 V.
- Does the INA219AIDCNR support multiple addresses?
Yes, it features 16 programmable addresses.
- What interface does the INA219AIDCNR use?
The device uses an I²C or SMBUS-compatible interface.
- Is the INA219AIDCNR Pb-free and RoHS compliant?
Yes, it is Pb-free and RoHS compliant.
- What are the typical applications of the INA219AIDCNR?
It is used in consumer electronics, industrial automation, telecommunications, computing and data storage, and electronic manufacturing.
- What is the bandwidth of the INA219AIDCNR?
The bandwidth is 3.4 MHz.
- What are the available package types for the INA219AIDCNR?
The device is available in SOT23-8 and SOIC-8 packages.
