INA228AIDGS Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
INA228AIDGS is a high-precision 20-bit digital power monitor from Texas Instruments with a bus voltage sense input range of 0 V to 85 V. It measures voltage, current, power, energy, and charge via an I2C/SMBus interface, packaged in a small-outline DSSOP-10 package, suitable for power management in servers, telecom, and industrial equipment.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 10
- Lifecycle
- ACTIVE
- Datasheet
- INA228AIDGS Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 20-bit ADC resolution for high-accuracy power measurements
- Bus voltage sense input range: 0 V to 85 V
- Simultaneous voltage, current, power, energy, and charge monitoring
- I2C and SMBus compatible digital interface
- Programmable alert thresholds for overcurrent and overvoltage detection
- DSSOP-10 small outline package for space-efficient designs
- Supports up to 16 device addresses on one bus
Applications
The INA228AIDGS is designed for power monitoring in server and data center power supplies, telecom base stations, and industrial automation equipment where accurate energy accounting up to 85 V is required. It also suits battery management systems and solar energy storage applications needing long-term energy and charge accumulation tracking via a digital interface.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for INA228AIDGS:
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Frequently Asked Questions
How accurate is the INA228AIDGS for current measurement in high-side sensing?
The INA228AIDGS uses a 20-bit ADC to measure the differential voltage across a shunt resistor on buses up to 85 V. The high resolution enables current sensing accuracy suitable for precision power budgeting in server infrastructure and industrial systems. Programmable averaging further reduces noise for stable readings at low current levels.
Which power supply topologies can the INA228AIDGS monitor effectively?
The INA228AIDGS can monitor power rails up to 85 V, covering 12 V, 24 V, 48 V, and higher bus voltages common in telecom, server, and industrial power distributions. Its bidirectional current measurement capability also supports regenerative and battery-backed topologies where current direction changes dynamically.
How does the energy accumulation register benefit long-term power monitoring?
The INA228AIDGS includes dedicated energy and charge accumulation registers that automatically integrate power and current over time without requiring host CPU intervention. This enables accurate kilowatt-hour tracking over days or weeks in data center PDUs, uninterruptible power supplies, and renewable energy storage systems operating continuously.
How many INA228AIDGS devices can share the same I2C bus?
Up to 16 INA228AIDGS devices can coexist on a single I2C bus using the 4 address-select pins, allowing monitoring of 16 independent power rails simultaneously. This multi-rail capability is particularly valuable in server motherboards and rack-mount power distribution units with 12 V, 3.3 V, and 5 V rails requiring separate accounting.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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