Digital power monitors
Optimize your system with power monitoring and improved accuracy all with a wide common-mode range
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Digital power monitors perform mathematical processing on chip, freeing up system processors to handle other tasks. Providing higher bit-depth with additional features such as ALERTs, energy accumulation and ambient temperature sensing, our portfolio of digital power monitors helps address the needs of various application types, especially those that need multidecade current sensing from 1000A to 100mA.
Select by parametric specification
Common-mode voltage
Accuracy
Resolution
Device features
Technical resources
Video series
TI Precision Labs - Current Sense Amplifiers
View this series of short training videos covering the basics of current-sense amplifiers, tips for applications, debugging, key specifications and more.
E-book
An Engineer's Guide to Current Sensing (Rev. B)
Explore a comprehensive library of application-specific current-sensing design challenges and how to solve them.
Selection guide
Current Sense Amplifiers (Rev. E)
Find featured reference designs and current-sense amplifier products.
Discover featured applications
Battery Energy Storage
Monitoring current inflow and outflow from battery energy storage systems ensures proper operation and maximizes system efficiency
Automotive Advanced Driver Assistance Systems
Precision current sensing can help your advanced driver assistance systems operate correctly for safe vehicle operation
Video Surveillance
Measure current feedback and cycle camera functionality: LEDs, heaters and motors, to stay below Power over Ethernet class limits and avoid power sourcing equipment shutdown
Monitoring current inflow and outflow from battery energy storage systems ensures proper operation and maximizes system efficiency
Precision monitoring of current, voltage, power and energy enables battery health monitoring and discrete fuel gauging of energy storage systems.
Benefits:
- Current measurements with <0.5% full-scale error over –40°C to +125°C temperature range.
- Monitoring the current and bus voltage in a single solution minimizes board space requirements for diagnostics.
- Flexible alert configurations enable the detection of multiple fault conditions.
- An operational common-mode voltage as high as 85 V allows use on multiple battery systems.
Featured resources
END-EQUIPMENT / SUB-SYSTEM
REFERENCE DESIGNS
- TIDA-00639 – 600V Uni-directional Current/Voltage/Power Monitoring for Solar Smart Combiner Box Reference Design
- TIDA-00528 – 40 V to 400 V Uni-directional Current/Voltage/Power Monitoring Reference Design
PRODUCTS
TECHNICAL RESOURCES
- A smarter way for solar to power the grid – think inside the box – Technical article
DESIGN TOOLS AND SIMULATION
- CS-AMPLIFIER-ERROR-TOOL – Current sense amplifier comparison and error tool
SOFTWARE DEVELOPMENT
- ASC-STUDIO – Analog signal chain (ASC) studio
Precision current sensing can help your advanced driver assistance systems operate correctly for safe vehicle operation
Precision monitoring helps develop safer systems by measuring current and voltage to ensure safe operating conditions at controllers and the sensors systems such as radar, LiDAR, ultrasonic and cameras.
Benefits:
- Current measurements with <0.5% full-scale error over –40°C to +125°C temperature range.
- Monitoring the current and bus voltage in a single solution minimizes board space requirements for diagnostics.
- Flexible alert configurations enable the detection of multiple fault conditions.
- An operational common-mode voltage as high as 85 V allows use on multiple battery systems.
Featured resources
END-EQUIPMENT / SUB-SYSTEM
PRODUCTS
- INA238-Q1 – AEC-Q100, 85-V, 16-bit, high-precision, I²C output current/voltage/charge monitor
- INA226-Q1 – AEC-Q100, 36V, 16-bit, ultra-precise, i2c output current/voltage/power monitor w/alert
- INA3221-Q1 – AEC-Q100, 26V, triple channel, 13-bit, i2c output current/voltage monitor w/alerts
TECHNICAL RESOURCES
- Integrating the Current Sensing Signal Path (Rev. B) – Application brief
- Getting Started with Digital Power Monitors (Rev. A) – Application note
DESIGN TOOLS AND SIMULATION
- CS-AMPLIFIER-ERROR-TOOL – Current sense amplifier comparison and error tool
Measure current feedback and cycle camera functionality: LEDs, heaters and motors, to stay below Power over Ethernet class limits and avoid power sourcing equipment shutdown
Precision monitoring of a camera input's AC/DC supply and Ethernet power can help prevent overcurrent and overvoltage events.
Benefits:
- Monitoring current and bus voltage in a single solution minimizes board space requirements and increases ease of use.
- Current measurements with <0.5% full-scale error over –40°C to +125°C temperature range.
- Flexible alert configurations enable the detection of multiple fault conditions.
- An operational common-mode voltage as high as 85 V allows use on the higher-voltage rail of flyback converters.
Featured resources
END-EQUIPMENT / SUB-SYSTEM
PRODUCTS
DESIGN TOOLS AND SIMULATION
- CS-AMPLIFIER-ERROR-TOOL – Current sense amplifier comparison and error tool
SOFTWARE DEVELOPMENT
- SYSCONFIG – System configuration tool
Design & development resources
Calculation tool
Current sense amplifier comparison and error tool
This Excel calculator provides a comparison between two and five of our standard current sense amplifiers, delivering a chart containing the basic parameters of each device. This calculator also takes system condition inputs from users such as common-mode voltage, supply voltage, shunt resistor (...)
IDE, configuration, compiler or debugger
System configuration tool
CCStudio™ SysConfig is part of TI's extensive CCStudio™ development ecosystem and is a configuration tool that simplifies hardware and software configuration challenges to accelerate software development.
SysConfig provides an intuitive graphical user interface for configuring pins, peripherals, (...)
Evaluation board
INA232, INA234 and INA236 evaluation module for current/voltage/power monitors
This evaluation module (EVM) is an easy-to-use platform to evaluate the main features and performance of the INA232, INA234 or INA236. The EVM comes with GUI support to read and write to device registers.