INA209AIPW Texas Instruments In Stock
INA209AIPW is a high-side current shunt and power monitor with I2C interface by Texas Instruments. Key specs: 26V bus voltage range, 12-bit ADC resolution, programmable gain amplifier. From $4.13, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- —
- Lifecycle
- ACTIVE
- Datasheet
- N/A
- Price
- From $4.1300(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of INA209AIPW?
- High-side current sensing with 26V bus voltage range for versatile power rail monitoring
- 12-bit ADC with programmable gain (1x–8x) for wide dynamic range current measurement
- I2C-compatible interface (up to 3.4 MHz) enables easy integration with microcontrollers
- Integrated power calculation register provides direct watts readout without software computation
- Small TSSOP-16 package with wide -40°C to +125°C operating temperature range
What is INA209AIPW used for?
The INA209AIPW is widely used in server and telecom power management systems where accurate high-side current and power monitoring is critical. It is suitable for battery chargers, DC-DC converter monitoring, and industrial equipment that require real-time power budgeting. The device also finds application in smart energy meters and automotive subsystems where I2C-based communication and compact form factor are essential.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
What are equivalent replacements for INA209AIPW?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the maximum bus voltage supported by the INA209AIPW?
The INA209AIPW supports bus voltages up to 26V, making it suitable for monitoring a wide variety of power rails including 5V, 12V, and 24V systems commonly found in industrial and telecom applications.
What ADC resolution does the INA209AIPW provide?
The INA209AIPW features a 12-bit ADC with programmable gain settings of 1x, 2x, 4x, and 8x, enabling accurate current measurements across a wide dynamic range from milliamps to several amps depending on shunt resistor selection.
How does the INA209AIPW communicate with a microcontroller?
The INA209AIPW uses an I2C-compatible serial interface supporting clock speeds up to 3.4 MHz (High-Speed mode), allowing seamless integration with standard microcontrollers and SoCs for reading current, voltage, and power data.
Can the INA209AIPW be used for battery-powered designs?
Yes, the INA209AIPW is suitable for battery-powered applications. It operates from a 3V to 5.5V supply and features a quiescent current of approximately 1 mA, making it practical for designs where power consumption needs to be minimized.
Where can I buy the INA209AIPW and what is the typical price?
The INA209AIPW is available from authorized distributors worldwide. The typical unit price starts at $4.13, and it is in stock with worldwide shipping options to support both prototyping and production volumes.
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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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“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”