26V, triple channel, 13-bit, i2c output current/voltage monitor w/alerts
Product details
Parameters
Package | Pins | Size
Features
- Senses Bus Voltages From 0 V to 26 V
- Reports Shunt and Bus Voltage
- High Accuracy:
- Offset Voltage: ±80 µV (max)
- Gain Error: 0.25% (max)
- Configurable Averaging Options
- Four Programmable Addresses
- Programmable Alert and Warning Outputs
- Power-Supply Operation: 2.7 V to 5.5 V
Description
The INA3221 is a three-channel, high-side current and bus voltage monitor with an I2C- and SMBUS-compatible interface. The INA3221 monitors both shunt voltage drops and bus supply voltages, in addition to having programmable conversion times and averaging modes for these signals. The INA3221 offers both critical and warning alerts to detect multiple programmable out-of-range conditions for each channel.
The INA3221 senses current on buses that can vary from 0 V to 26 V. The device is powered from a single 2.7-V to 5.5-V supply, and draws 350 µA (typ) of supply current. The INA3221 is specified over the operating temperature range of –40°C to +125°C. The I2C- and SMBUS-compatible interface features four programmable addresses.
Technical documentation
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
The INA3221EVM is a platform for evaluating the performance of the INA3221 under various signal, shunt, and supply conditions.
Features
Software development
Linux Mainline Status
Available in Linux Main line: Yes
Available through git.ti.com: N/A
- ina3221
Design tools & simulation
Features
- Leverages Cadence PSpice Technology
- Preinstalled library with a suite of digital models to enable worst-case timing analysis
- Dynamic updates ensure you have access to most current device models
- Optimized for simulation speed without loss of accuracy
- Supports simultaneous analysis of multiple products
- (...)
Reference designs
The hardware design consists of DDR3L SDRAM (2x512MB), 64MB Serial NOR Flash, 8GB eMMC 5.0 iNAND, SD Card interface v3.0, 50 pin LCD Connector for external TFT display (...)
Design files
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download TIDA-050034 BOM.pdf (515KB) -
download TIDA-050034 Assembly Files.zip (547KB) -
download TIDA-050034 Layer Plots.zip (540KB) -
download TIDA-050034 CAD Files.zip (8958KB) -
download TIDA-050034 Gerber.zip (2330KB)
Design files
-
download TIDA-050043 BOM.pdf (648KB) -
download TIDA-050043 Assembly Files.zip (352KB) -
download TIDA-050043 Layer Plots.zip (434KB) -
download TIDA-050043 CAD Files.zip (9337KB) -
download TIDA-050043 Gerber.zip (1958KB)
Design files
-
download TIDA-050038 Assembly Files.zip (263KB) -
download TIDA-050038 Layer Plots.zip (303KB) -
download TIDA-050038 Gerber.zip (1120KB) -
download TIDA-050038 BOM (Rev. A).pdf (638KB) -
download TIDA-050038 CAD Files (Rev. A).zip (8914KB)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
VQFN (RGV) | 16 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Support & training
TI E2E™ forums with technical support from TI engineers
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