INA229AIDGST Equivalent & Substitute Parts

Part Overview

The INA229AIDGST is an active, high-side current monitor integrated circuit manufactured by Texas Instruments. This Power Management (PMIC) device functions as a current sensing regulator with high-side measurement capability, delivering 10mA output current. The device operates across a 2.7V to 5.5V input voltage range with ±0.01% accuracy and supports operating temperatures from -40°C to 125°C. Packaged in 10-VSSOP surface mount configuration, the INA229AIDGST is supplied in Tape & Reel format with 1160 units currently in stock.

Equivalent and substitute parts are identified to address supply chain requirements, packaging format preferences, or application-specific certifications while maintaining identical electrical and mechanical performance characteristics.

Substiute Parts

INA229AIDGST

Texas InstrumentsIn Stock: 1248INA229AIDGST Datasheet

Current PartRFQ

INA229AIDGSR

Texas InstrumentsIn Stock: 5185INA229AIDGSR Datasheet

Parametric EquivalentRFQ

INA229AQDGSRQ1

Texas InstrumentsIn Stock: 3376INA229AQDGSRQ1 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the INA229AIDGST are identified based on strict parametric equivalence across all critical electrical and mechanical specifications. The substitution logic is based on the following key parameters that must remain identical:

• Function: Current Monitor
• Sensing Method: High-Side
• Accuracy: ±0.01%
• Voltage - Input Range: 2.7V ~ 5.5V
• Current - Output: 10mA
• Operating Temperature Range: -40°C ~ 125°C (TA)
• Mounting Type: Surface Mount
• Package / Case: 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
• Supplier Device Package: 10-VSSOP
• Moisture Sensitivity Level (MSL): 2 (1 Year)

Substitute parts differ only in packaging format (Cut Tape & Digi-Reel® versus Tape & Reel) and compliance certifications. All substitute parts maintain identical electrical performance and physical form factor compatibility.

Parameter Comparison

Engineering Selection Recommendations

All three parts—INA229AIDGST, INA229AIDGSR, and INA229AQDGSRQ1—are active products from Texas Instruments with identical electrical specifications and physical form factors. Selection between these parts is determined by application requirements and supply chain considerations:

INA229AIDGST is the primary specification with Tape & Reel packaging. This format is standard for high-volume manufacturing and automated assembly processes.

INA229AIDGSR is a parametric equivalent supplied in Cut Tape & Digi-Reel® format. This packaging option is suitable for lower-volume applications or when component-level flexibility is required. The part carries ROHS3 compliance certification and REACH unaffected status.

INA229AQDGSRQ1 is an automotive-grade variant qualified to AEC-Q100 standards. This part is required for automotive applications where functional safety and reliability certifications are mandatory. The automotive qualification ensures the device meets automotive industry reliability and quality standards.

Selection should be based on: (1) packaging format requirements for assembly processes, (2) compliance certifications needed for the target application, and (3) supply chain availability.

Frequently Asked Questions (FAQ)

Q: Can INA229AIDGSR be used as a direct replacement for INA229AIDGST?

A: Yes. Both parts are parametrically equivalent with identical electrical performance, accuracy, voltage range, current output, operating temperature range, and physical package dimensions. The only difference is packaging format: INA229AIDGST uses Tape & Reel while INA229AIDGSR uses Cut Tape & Digi-Reel®. Direct substitution is electrically and mechanically compatible.

Q: What is the difference between INA229AIDGSR and INA229AQDGSRQ1?

A: Both parts share identical electrical specifications and package dimensions. The key difference is that INA229AQDGSRQ1 is automotive-grade with AEC-Q100 qualification, making it suitable for automotive applications. INA229AIDGSR is standard-grade without automotive certification. Selection depends on whether the application requires automotive-grade reliability certification.

Q: Are all three parts pin-compatible?

A: Yes. All three parts use the 10-VSSOP package with identical pin configuration, spacing (0.118", 3.00mm width), and electrical pinout. They are fully pin-compatible for PCB design and assembly.

Q: What does the packaging format difference mean for my assembly process?

A: INA229AIDGST (Tape & Reel) is optimized for high-speed automated pick-and-place assembly with continuous tape feeding. INA229AIDGSR (Cut Tape & Digi-Reel®) provides flexibility for lower-volume production or manual assembly processes. Both formats contain the same component; the difference is in delivery and handling method.

Q: Can I use INA229AQDGSRQ1 in non-automotive applications?

A: Yes. INA229AQDGSRQ1 meets or exceeds all specifications required for standard applications. Automotive-grade components are qualified to higher reliability standards and can be used in any application where the INA229AIDGST or INA229AIDGSR would be suitable. The automotive qualification is an additional certification, not a limitation.

Q: Are there any compliance or certification differences I should know about?

A: INA229AIDGSR carries ROHS3 compliance and REACH unaffected status. INA229AQDGSRQ1 carries AEC-Q100 automotive qualification. INA229AIDGST compliance status is not specified in the provided data. Verify compliance requirements for your specific application and supply chain.

Q: What is the Moisture Sensitivity Level (MSL) and why is it important?

A: All three parts have MSL 2 (1 Year), meaning they can be stored in standard conditions for up to one year before requiring baking prior to reflow soldering. This is a standard moisture sensitivity rating for surface mount components and does not differentiate between the three parts.