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Texas Instruments INA230AIRGTT
- Part No.:
- INA230AIRGTT
- Manufacturer:
- Texas Instruments
- Category:
- Current Regulation/Management
- Package:
- 16-VFQFN Exposed Pad
- Datasheet:
-
INA230AIRGTT.pdf
- Description:
- IC CURRENT MONITOR 0.005 16VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:988
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Product details
Overview
INA230AIRGTT from Texas Instruments is a 16-bit I²C-output current, voltage, and power monitor IC for high- or low-side sensing in 0V–36V bus systems. It delivers ±25µV shunt offset, 0.3% gain error, 16-bit resolution, and operates from 2.7V–5.5V supply - enabling precise real-time power telemetry in rack servers and telecom power supplies.
For engineers reviewing the INA230AIRGTT datasheet, INA230AIRGTT pinout, INA230AIRGTT application, or INA230AIRGTT equivalent, key selection criteria include its programmable averaging (1–1024 samples), alert-triggered threshold monitoring (SOL/BOL/POL), and dual-conversion architecture supporting independent shunt/bus timing control.
Technical Context
The INA230AIRGTT integrates dual 16-bit ΔΣ ADCs-one for shunt voltage (±81.92mV range) and one for bus voltage (0–36V)-with an internal multiplier and calibration register to compute current (A) and power (W) directly. Its I²C/SMBus interface supports Fast Mode (400kHz) and High-Speed Mode (3.4MHz), with configurable conversion times from 140µs to 8.24ms per channel.
It implements continuous or triggered measurement modes, programmable alert functions (shunt/bus over/under-limit, power over-limit), and power-down mode (0.5–2µA quiescent). The device maintains full functionality across –40°C to +125°C and features 120–140dB CMRR for robust operation in noisy industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Bus Voltage Range | 0 V to 36 V - enables direct monitoring of 12 V, 24 V, and 36 V DC distribution rails without level-shifting. |
| Shunt Voltage Range | ±81.92 mV - supports high-resolution current sensing with standard 1 mΩ–10 mΩ shunts at up to ±8 A. |
| ADC Resolution | 16 bits - provides 2.5 µV LSB for shunt and 1.25 mV LSB for bus voltage, enabling sub-millivolt precision. |
| Gain Error | ±0.3% max - ensures accurate current scaling across temperature without per-unit calibration. |
| Offset Voltage | ±25 µV max (shunt), ±15 mV max (bus) - minimizes zero-current and zero-voltage measurement errors. |
| Supply Voltage | 2.7 V to 5.5 V - allows direct interfacing with 3.3 V or 5 V microcontrollers and FPGAs. |
| Quiescent Current | 330 µA typical - enables always-on monitoring in energy-sensitive embedded power management. |
Pinout & Package
INA230AIRGTT is housed in a 3.00 mm × 3.00 mm, 16-pin RGT (VQFN) package with exposed thermal pad. Pin numbering follows top-view orientation; thermal pad may be connected to GND or left floating for thermal optimization.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN+ | Shunt voltage positive input | Connects to high-side of sense resistor (high-side sensing) or load side (low-side sensing); differential pair with IN−. |
| IN− | Shunt voltage negative input | Connects to load side (high-side) or ground side (low-side); defines current direction and enables bidirectional measurement. |
| VBUS | Bus voltage input | Monitors supply rail voltage (0–36 V) referenced to GND; used with internal 1.25 mV LSB scaling for direct readout. |
| GND | Analog ground reference | Primary return path for shunt, bus, and internal circuitry; must be low-impedance and separated from digital ground if noise-sensitive. |
| VS | Power supply input | Provides 2.7–5.5 V bias for internal circuitry; independent of monitored bus voltage - enables hot-swap compatibility. |
| SCL | I²C clock input | Open-drain input accepting 1–400 kHz (Fast Mode) or 10–3400 kHz (High-Speed Mode); requires external pull-up. |
| SDA | I²C data I/O | Open-drain bidirectional line; shares bus with other I²C devices; supports SMBus timeout (28–35 ms). |
| ALERT | Programmable open-drain output | Asserts on user-defined events (e.g., SOL, BOL, POL); polarity and latching controlled via Mask/Enable register. |
| A0, A1 | I²C address configuration inputs | Set 16 unique slave addresses by tying to GND, VS, SCL, or SDA; enables multi-device bus topology without address conflict. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable averaging (1–1024 samples) | Reduces noise-induced errors in current/power readings without external filtering components or firmware averaging. |
| Independent shunt/bus conversion timing | Allows optimized timing allocation - e.g., longer shunt sampling for dynamic loads while using shorter bus sampling for stable rails. |
| Calibration register-based current scaling | Enables direct amperes readout from Current register without host-side math; eliminates floating-point computation in MCU firmware. |
| Single alert pin with five trigger sources | Supports hardware-level fault response (e.g., overcurrent shutdown) without polling - reduces host CPU overhead and latency. |
| –40°C to +125°C operating range | Validated performance across automotive under-hood, industrial PLC, and telecom base station thermal environments. |
Applications
| Rack Server Power Monitoring | Wireless Infrastructure PSU |
|---|---|
Use Scenario: Real-time per-blade current, voltage, and power tracking in 48 V intermediate bus architectures with hot-swap capability. IC Role / Device Role / Timing Role: High-side current/voltage monitor feeding telemetry to BMC via I²C; performs synchronized 16-bit conversions every 5 ms. Use Value: Enables dynamic power capping, predictive failure analysis, and compliance with ENERGY STAR® server efficiency reporting. |
Use Scenario: Monitoring 24 V/48 V DC-DC converter outputs in remote radio units (RRUs) and baseband units (BBUs). IC Role / Device Role / Timing Role: Low-side shunt monitor with programmable alert for overcurrent events; triggers immediate shutdown via FPGA GPIO. Use Value: Prevents catastrophic MOSFET failure during antenna load transients while maintaining <100 µs fault response time. |
| Industrial Power Supply Diagnostics | Battery Cell Balancer Supervision |
Use Scenario: Embedded monitoring of 24 V/36 V industrial PSUs in PLCs and motor drives, where bus voltage sag and load current spikes indicate aging capacitors or overload conditions. IC Role / Device Role / Timing Role: Continuous-mode bus/shunt measurement with 16-sample averaging; alerts on BUL (bus under-limit) below 22.5 V. Use Value: Extends mean time between failures (MTBF) by enabling proactive maintenance before undervoltage lockout occurs. |
Use Scenario: Monitoring individual cell voltage and charge/discharge current in 12S Li-ion battery packs for UPS and energy storage systems. IC Role / Device Role / Timing Role: High-side sensing on each cell's sense resistor; uses POL alert to halt balancing when pack power exceeds safe thermal limit. Use Value: Prevents localized overheating during active balancing by correlating current and voltage to compute real-time cell power dissipation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar current, voltage, and power monitoring applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| INA226AIDRCT | Same 16-bit resolution and I²C interface, but supports 0–85 V bus range and offers higher 0.1% gain accuracy; no programmable alert latch. | Better suited for 48 V telecom rectifiers and solar MPPT controllers requiring extended common-mode range. | Select INA226AIDRCT when bus voltage exceeds 36 V or sub-0.2% gain error is required; note different pinout (10-pin VSSOP) and no A0/A1 address pins. |
| INA236AIDR | 48 V max bus range, ultra-precise 0.05% gain error, integrated 2.5 V reference, and lower 150 µA quiescent current; lacks programmable averaging. | Optimized for portable medical devices and precision lab equipment needing lowest offset drift (±0.01 µV/°C). | Choose INA236AIDR for battery-powered systems demanding highest accuracy and lowest power; requires external reference bypassing not needed with INA230AIRGTT. |
Compared with INA226AIDRCT and INA236AIDR, the INA230AIRGTT offers the optimal balance of 36 V bus compatibility, flexible I²C addressing (A0/A1), on-chip averaging, and alert latching - making it ideal for cost-sensitive, space-constrained server and infrastructure designs where 0–36 V coverage is sufficient.
Availability
INA230AIRGTT is available at Aetrix Electronics and suitable for rack servers, wireless infrastructure base stations, and industrial power supplies requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for INA230AIRGTT includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with decades of expertise in precision signal chain and power management ICs.
The INA230AIRGTT belongs to TI's high-accuracy current-sense monitor product line, designed specifically for real-time power telemetry in enterprise computing, telecom, and industrial systems where reliability and measurement integrity are critical.
FAQ
What is the maximum bus voltage the INA230AIRGTT can safely measure?
The INA230AIRGTT supports a common-mode input range of 0 V to 36 V on the VBUS pin. Applying more than 36 V violates absolute maximum ratings and risks permanent damage. This rating holds across the full –40°C to +125°C operating temperature range and is independent of the 2.7–5.5 V VS supply voltage.
Does the INA230AIRGTT require external calibration for current measurement?
No - the INA230AIRGTT uses an internal calibration register that, when programmed with a value derived from shunt resistance and desired current units, enables direct amperes readout from the Current register. This eliminates host-side scaling math and ensures consistent accuracy without per-unit calibration.
How does the ALERT pin function in the INA230AIRGTT?
The ALERT pin is an open-drain output that asserts when any enabled alert condition (e.g., Shunt Over-Limit, Bus Over-Limit, or Power Over-Limit) exceeds its programmed threshold. Its behavior - including polarity, latching, and source identification - is fully configurable via the Mask/Enable and Alert Limit registers in the INA230AIRGTT.
Can the INA230AIRGTT operate with different conversion times for shunt and bus voltage measurements?
Yes - the INA230AIRGTT allows independent selection of conversion time (CT) bits for shunt and bus channels, ranging from 140 µs to 8.24 ms. This enables optimization such as longer shunt sampling for noisy current waveforms while using faster bus sampling for stable supply rails - all within a single INA230AIRGTT device.
What package type and thermal characteristics apply to the INA230AIRGTT?
The INA230AIRGTT uses a 3.00 mm × 3.00 mm, 16-pin RGT (VQFN) package with exposed thermal pad. Its junction-to-board thermal resistance (RθJB) is 29.9 °C/W, and junction-to-ambient (RθJA) is 54.5 °C/W - enabling reliable operation at full specification up to +125°C ambient when properly mounted on a 2-layer PCB with thermal vias to inner ground planes.
INA230AIRGTT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Current Monitor
- Sensing Method:
- High/Low-Side
- Accuracy:
- 0.5%
- Voltage - Input:
- 0V ~ 36V
- Current - Output:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-VQFN (3x3)
INA230AIRGTT FAQ
1.How can I place an order for INA230AIRGTT through Aetrix?
Please submit a Request for Quotation (RFQ) for INA230AIRGTT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for INA230AIRGTT reliable?
The price and inventory of INA230AIRGTT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for INA230AIRGTT is usually 5 days.
3.What payment methods are accepted for INA230AIRGTT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for INA230AIRGTT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for INA230AIRGTT?
INA230AIRGTT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your INA230AIRGTT order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for INA230AIRGTT?
For technical support, including INA230AIRGTT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your INA230AIRGTT requirements.
6.How does Aetrix verify that INA230AIRGTT is sourced from the original manufacturer or authorized distributors?
All INA230AIRGTT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that INA230AIRGTT meets industry standards.
7.What is the process for return or replacement of INA230AIRGTT?
All INA230AIRGTT units undergo pre-shipment inspection (PSI). If there is an issue with INA230AIRGTT, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The INA230AIRGTT part is unused and in its original packaging.
Return procedure for INA230AIRGTT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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