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INA2227AIYBJR

TIINA2227AIYBJR

Texas Instruments
Current & Power Monitors & Regulators Dual channel 16-bit current voltage
Active2,038 in stock
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Overview

The INA2227AIYBJR is a dual-channel, high-side or low-side current, voltage, and power monitor with a 16-bit ADC resolution. It communicates via a 1.2V compliant I2C and SMBus interface, allowing for precise energy monitoring across a common-mode range up to 48V. This device integrates programmable full-scale ranges and alert limits to simplify system-level power management.

Why Choose This Part

The dual-channel architecture enables monitoring of two separate rails or a single rail's input and output for efficiency calculations in a compact 1.6mm x 1.6mm DSBGA package. Its high accuracy of +/-0.5% combined with 16 selectable I2C addresses allows for complex, multi-rail system designs without bus contention issues.

Applications

Battery Management Systems
Monitoring charge and discharge cycles in multi-cell battery packs with precise current and energy accumulation.
Industrial Power Supplies
Real-time power consumption tracking and over-current protection for industrial automation equipment.
Telecom Infrastructure
Measuring power efficiency and rail stability in high-density networking hardware.
Server Power Monitoring
Providing accurate voltage and current telemetry for system health monitoring and thermal management.

Key Specifications

Accuracy +/-0.5%
Function Current Monitor
Mounting Type Surface Mount
Package / Case 16-XFBGA, DSBGA
Sensing Method High/Low-Side
Voltage - Input 1.7V ~ 5.5V
Operating Temperature -40degC ~ 125degC (TA)
Supplier Device Package 16-DSBGA (1.6x1.6)

Getting Started

To evaluate the INA2227, connect the DSBGA package to a breakout board and interface it with an MCU via the I2C bus. Configure the shunt resistor value and programmable full-scale range (20mV or 80mV) in the internal configuration registers to match your expected load current. Utilize the alert pin to trigger hardware interrupts for over-current or under-voltage conditions.

Also Consider

INA226 TITexas Instruments - A single-channel alternative with higher precision and a 36V common-mode range in a standard VSSOP package.
INA219 TITexas Instruments - A simpler, 12-bit single-channel monitor suitable for less demanding applications with a 26V common-mode limit.

Categories

Power Management > Power Monitoring ICs Industrial & Automation > Industrial Sensors & Instrumentation