Overview
The INA219BIDCNT is a high-accuracy, bidirectional current 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 operates with a single 3- to 5.5-V supply, drawing a maximum of 1 mA of supply current, and can sense bus voltages ranging from 0 to 26 V. The INA219BIDCNT is available in SOT-23-8 and SOIC-8 packages and operates over a temperature range of -40°C to 125°C.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package Type | SOT-23-8 | |
| Pins | 8 | |
| Operating Temperature Range | -40 to 125 | °C |
| Supply Voltage | 3 to 5.5 | V |
| Supply Current (Max) | 1 | mA |
| Bus Voltage Range | 0 to 26 | V |
| Digital Interface | I2C or SMBUS | |
| Gain Error | 0.5% | |
| Input Offset Voltage (Max) | 50 μV | |
| Common Mode Rejection Ratio (Min) | 120 dB | |
| Bandwidth | 5.5 kHz |
Key Features
- Senses bus voltages from 0 to 26 V
- Reports current, voltage, and power
- Bidirectional current sensing
- High accuracy: 0.5% (maximum) over temperature (INA219B)
- 16 programmable addresses
- Filtering options and calibration registers
- Programmable gain
Applications
- Servers
- Telecom equipment
- Notebook computers
- Power management systems
- Battery chargers
- Welding equipment
- Power supplies
- Test equipment
Q & A
- What is the operating temperature range of the INA219BIDCNT?
The INA219BIDCNT operates from -40°C to 125°C.
- What is the supply voltage range for the INA219BIDCNT?
The device operates with a supply voltage ranging from 3 to 5.5 V.
- What is the maximum supply current of the INA219BIDCNT?
The maximum supply current is 1 mA.
- What types of packages are available for the INA219BIDCNT?
The device is available in SOT-23-8 and SOIC-8 packages.
- What is the bus voltage range that the INA219BIDCNT can sense?
The device can sense bus voltages from 0 to 26 V.
- Does the INA219BIDCNT support bidirectional current sensing?
Yes, the INA219BIDCNT supports bidirectional current sensing.
- How many programmable addresses does the INA219BIDCNT have?
The device has 16 programmable addresses.
- What is the gain error of the INA219BIDCNT?
The gain error is 0.5%.
- What is the common mode rejection ratio (CMRR) of the INA219BIDCNT?
The CMRR is a minimum of 120 dB.
- What are some common applications of the INA219BIDCNT?
Common applications include servers, telecom equipment, notebook computers, power management systems, battery chargers, welding equipment, power supplies, and test equipment.
