INA236
48-V, 16-bit ultraprecise I²C output digital power monitor with alert in WCSP
INA236
- High-side or low-side current sensing
- Operates from a 1.7-V to 5.5-V power supply
- Reports current, voltage and power
- Programmable full scale range: 20mV / 80mV
- Input common mode range: –0.3 V to 48 V
- Current monitoring accuracy:
- 16-bit ADC resolution
- 0.1% gain error (maximum)
- 5-µV offset (maximum)
- Low input bias current: 10 nA (maximum)
- Configurable averaging options
- General call addressing allows conversion synchronization among devices
- Alert limits for over and under current events
- 1.2-V compliant I 2C, SMBus interface
- Two device address options with a 4-pin selectable address
- DSBGA-8 Package (0.745 mm × 1.508 mm)
- SOT23-8 Package
- Operating temperature: –40°C and +125°C
The INA236 device is a 16-bit digital current monitor with an I 2C/SMBus-compatible interface that is compliant with a wide range of digital bus voltages such as 1.2 V, 1.8 V, 3.3 V, and 5.0 V. The device monitors the voltage across an external sense resistor and reports values for current, bus voltage, and power.
The INA236 features programmable ADC conversion times and averaging. The device also has a programmable calibration value with an internal multiplier that enables direct readouts of current in amperes and power in watts. The device monitors the bus voltage present on the IN– pin and can alert on overcurent and undercurrent conditions as well as overvoltage and undervoltage conditions. High input impedance while in current measurement mode allows use of larger current sense resistors needed to measure small value system currents.
The INA236 senses current on common-mode bus voltages that can vary from –0.3 V to 48 V, independent of the supply voltage. The device operates from a single 1.7-V to 5.5-V supply, drawing a typical supply current of 300 µA in normal operation. The device can be placed in a low-power standby mode where the typical operating current is 2.2 µA.
Technical documentation
Type | Title | Date | ||
---|---|---|---|---|
* | Data sheet | INA236 48-V, 16-Bit, Ultra-Precise, Current, Voltage, and Power Monitor With an I2C Interface datasheet (Rev. D) | PDF | HTML | 14 Aug 2023 |
EVM User's guide | INA232EVM, INA234EVM and INA236EVM User's Guide (Rev. B) | PDF | HTML | 23 Dec 2022 | |
Application note | Using a PCB Copper Trace as a Current-Sense Shunt Resistor | PDF | HTML | 25 Jan 2022 | |
Application note | Digital Interfaces for Current Sensing Devices (Rev. A) | PDF | HTML | 30 Sep 2021 | |
Application note | Getting Started with Digital Power Monitors (Rev. A) | PDF | HTML | 02 Sep 2021 | |
Certificate | INA236EVM EU RoHS Declaration of Conformity (DoC) | 01 Jun 2021 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
INA234_236EVM — INA232, INA234 and INA236 evaluation module for current/voltage/power monitors
CS-AMPLIFIER-ERROR-TOOL — Current Sense Amplifier Comparison and Error Tool
Supported products & hardware
Products
Analog current-sense amplifiers
Analog current-sense amplifiers with integrated shunt resistor
Digital power monitors
SBOR021 — Power Monitor Tool
Supported products & hardware
Products
Digital power monitors
Digital power monitors with integrated shunt resistor
PSPICE-FOR-TI — PSpice® for TI design and simulation tool
TINA-TI — SPICE-based analog simulation program
Package | Pins | Download |
---|---|---|
DSBGA (YBJ) | 8 | View options |
SOT-23-THN (DDF) | 8 | 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
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