INA219AIDCNT Texas Instruments Integrated Circuit (SOT23 (8-Pin)) In Stock
INA219AIDCNT is a high-side current and power monitor IC with I2C interface, 12-bit ADC resolution, and 0.1Ω sense resistor compatibility. It measures bus voltages up to 26V and current up to 3.2A, ideal for power management in embedded systems. From $1.05 in stock, worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (8-Pin)
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- INA219AIDCNT Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.0479(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- High-side current sensing with 12-bit ADC resolution for accurate measurements
- I2C/SMBus compatible interface, programmable address pins for multi-device bus
- Wide input voltage range up to 26V with ±3.2A bidirectional current measurement
- Integrated power calculation eliminates need for external microcontroller processing
- Ultra-low 1mA quiescent current in SOT23-8 package for space-constrained designs
Applications
The INA219AIDCNT is widely used in battery-powered systems, server power supplies, and industrial equipment for real-time power monitoring and energy management. It excels in embedded designs requiring precise current sensing over I2C, such as IoT nodes, robotics motor controllers, and UPS systems. Its high-side measurement capability and compact SOT23-8 footprint make it ideal for portable electronics and multi-rail power monitoring applications.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Adjustable Threshold | NO |
| Analog IC - Other Type | HIGH SIDE POWER/CURRENT MONITOR |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e4 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP8,.1 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 1mA |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 3V |
| Supply Voltage-Nom (Vsup) | 3.3V |
| Surface Mount | YES |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Threshold Voltage-Nom | +2V |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| ## INA219AIDCNT Alternates Showing results | Image |
| Package | SOT23 (8-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 2 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Philippines |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for INA219AIDCNT:
Texas Instruments Fixed, 1 Channel, +2V, PDSO8
Texas Instruments Fixed, 2 Channel, +2V, PDSO8
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Frequently Asked Questions
What is the maximum bus voltage the INA219AIDCNT can measure?
The INA219AIDCNT supports bus voltage measurements up to 26V, making it suitable for a wide range of power supply rails in industrial, automotive, and consumer electronics applications. The device operates from a 3V to 5.5V supply while measuring higher bus voltages on the high side.
What is the current measurement range and resolution of the INA219AIDCNT?
The INA219AIDCNT provides bidirectional current sensing up to ±3.2A with a 12-bit ADC resolution. It measures the voltage drop across an external sense resistor (typically 0.1Ω) and reports current and power via I2C. Programmable gain settings allow optimization for smaller current ranges to improve resolution.
Is the INA219AIDCNT compatible with 3.3V microcontrollers and Arduino?
Yes, the INA219AIDCNT is fully compatible with 3.3V and 5V microcontroller systems including Arduino, Raspberry Pi, and STM32 boards. It uses a standard I2C interface (up to 400kHz fast mode) and supports up to 16 unique I2C addresses, allowing multiple units on the same bus.
What package does the INA219AIDCNT come in and are there alternatives?
The INA219AIDCNT is available in an 8-pin SOT23 (TSSOP-8 equivalent) package with a 0.1-inch pin pitch, well-suited for compact PCB designs. Pin-compatible alternatives include the INA219BIDR (SOIC-8) and INA226 for higher precision 16-bit measurements. All variants share the same I2C-based interface and register map.
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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.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $2.7944 | $2.79 |
| 10+ | $1.9750 | $19.75 |
| 13+ | $1.7465 | $22.70 |
| 44+ | $1.0479 | $46.11 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”