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INA300AIDGSR
Texas Instruments
IC CURRENT SENSE 10VSSOP
3969 Pcs New Original In Stock
Current Sense Regulator High/Low-Side 10-VSSOP
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5.0 / 5.0
- (204 Ratings)
INA300AIDGSR
Product Overview
1314312
DiGi Electronics Part Number
INA300AIDGSR-DGManufacturer
Texas Instruments
INA300AIDGSR
Description
IC CURRENT SENSE 10VSSOPInventory
3969 Pcs New Original In Stock
Current Sense Regulator High/Low-Side 10-VSSOP
Quantity
Minimum 1
Minimum 1
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INA300AIDGSR Technical Specifications
Category
Power Management (PMIC), Current Regulation/Management
Packaging
Cut Tape (CT) & Digi-Reel®
Series
-
Product Status
Active
Function
Current Sense
Sensing Method
High/Low-Side
Accuracy
-
Voltage - Input
2.7V ~ 5.5V
Current - Output
-
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
Supplier Device Package
10-VSSOP
Base Product Number
INA300
Datasheet & Documents
Manufacturer Product Page
INA300AIDGSR Specifications
HTML Datasheet
INA300AIDGSR-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Other Names
INA300AIDGSR-DG
296-47259-1
296-47259-2
296-47259-6
Standard Package
2,500
Alternative Parts
PART NUMBER
MANUFACTURER
QUANTITY AVAILABLE
DiGi PART NUMBER
UNIT PRICE
SUBSTITUTE TYPE
Reviews
5.0/5.0-(Show up to 5 Ratings)
de desembre 02, 2025
The vast diversity of products ensures I have plenty of options to choose from.
de desembre 02, 2025
Support staff showed patience and expertise in assisting me.
de desembre 02, 2025
I was amazed at how quickly my order was shipped after checkout.
de desembre 02, 2025
I am impressed with the durability of this product; it has withstood daily use without any signs of wear.
de desembre 02, 2025
Every interaction with their team feels personalized and efficient.
de desembre 02, 2025
The site displays all necessary information clearly, reducing confusion.
de desembre 02, 2025
The cost-effectiveness of DiGi Electronics products makes it my go-to choice for tech needs.
de desembre 02, 2025
Their focus on reducing environmental footprint through packaging is admirable.
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Frequently Asked Questions (FAQ)
How do I determine if the INA300AIDGSR is suitable for high-side current sensing in a 12V automotive power rail, and what are the key risks if my system experiences voltage transients above 10V?
The INA300AIDGSR supports high-side current sensing and operates with a supply voltage (VCC) of 2.7V to 5.5V, but its common-mode input voltage range must stay within –0.3V to +10V relative to GND. In a 12V automotive rail, the input pins (IN+ and IN–) will see voltages near 12V, which exceeds the 10V absolute maximum rating. This creates a critical design risk: sustained or transient overvoltage can damage the device or cause inaccurate readings. To safely use the INA300AIDGSR in this application, you must either reduce the common-mode voltage using a resistive divider or select a current sense amplifier rated for higher common-mode voltages, such as the INA240A1PWR (supports up to 80V). Always include transient voltage suppression (e.g., TVS diodes) and verify compliance with ISO 7637-2 pulse immunity if used in automotive environments.
Can I replace the INA300AIDGSR with the INA210A1DCKR in a low-side battery monitoring circuit without redesigning the PCB or firmware?
While both the INA300AIDGSR and INA210A1DCKR are current sense amplifiers from Texas Instruments, direct replacement is not recommended due to functional and pinout differences. The INA300AIDGSR is a comparator-based current monitor with open-drain alert output and programmable threshold, ideal for overcurrent detection, whereas the INA210A1DCKR is a precision amplifier with analog output proportional to current. The INA210 lacks the digital alert functionality and has a different pin configuration (SC70-6 vs. 10-VSSOP), making it incompatible without layout changes. Additionally, the INA210 requires external circuitry for threshold comparison, increasing BOM complexity. If your application relies on real-time fault signaling, replacing the INA300AIDGSR with the INA210A1DCKR would require adding a comparator and reference, introducing new failure points and calibration needs.
What are the thermal and layout considerations when using the INA300AIDGSR in a compact PCB design with high ambient temperatures up to 105°C?
The INA300AIDGSR has an operating temperature range of –40°C to 125°C, but performance and reliability degrade near the upper limit, especially in confined layouts. At 105°C ambient, self-heating from the package (10-VSSOP with limited thermal dissipation) can push the junction temperature close to or beyond safe limits, particularly if the device is sourcing current to a pull-up resistor on the ALERT pin. To mitigate risk, ensure adequate copper pour under the package for heat spreading, avoid placing heat-generating components nearby, and minimize trace resistance in the sense path to reduce I²R losses. Also, derate the pull-up resistor value to limit power dissipation on the ALERT line. Use thermal simulation or empirical testing to validate junction temperature under worst-case load and airflow conditions—failure to do so may result in intermittent faults or reduced MTBF in field deployments.
Is the INA300AIDGSR reliable for long-term industrial use in humid environments, and how does its MSL 1 rating impact assembly and storage?
Yes, the INA300AIDGSR is suitable for long-term industrial use in humid environments due to its Moisture Sensitivity Level (MSL) 1 rating, which indicates unlimited floor life under ambient conditions (≤30°C/85% RH). This eliminates the need for dry packing, baking, or strict time limits before reflow soldering—a significant advantage for high-mix manufacturing. However, long-term reliability still depends on proper conformal coating if the PCB is exposed to condensation or corrosive atmospheres. Unlike MSL 3 or higher devices, the INA300AIDGSR won’t suffer popcorning during reflow, reducing assembly defects. That said, always follow IPC-J-STD-033 guidelines for handling, and ensure your conformal coating process doesn’t interfere with the thermal performance or electrical isolation of the sense traces. This makes the INA300AIDGSR a robust choice for outdoor or factory-floor applications where humidity control is limited.
How should I configure the reference voltage and hysteresis for the INA300AIDGSR’s comparator to avoid false triggering in a noisy motor drive application?
In noisy environments like motor drives, false triggering of the INA300AIDGSR’s open-drain ALERT output is a common risk due to EMI coupling into the sense lines or power supply. To prevent this, externally set the reference voltage (VREF) using a stable, low-noise voltage divider or reference IC (e.g., REF3025), and connect it to the REF pin. Ensure VREF is within 0V to VCC – 0.3V. More critically, add hysteresis by connecting a feedback resistor between the ALERT pin and the IN– input (typically 1MΩ to 10MΩ range). This creates a small voltage window around the threshold, preventing chatter during marginal overcurrent conditions. For example, with a 10MΩ feedback resistor and 10kΩ pull-up, you can achieve ~5–10mV of hysteresis—enough to reject switching noise from PWM-driven motors. Always validate the response with an oscilloscope under real load transients; inadequate hysteresis can lead to nuisance shutdowns or missed fault events.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
INA300AIDGSR CAD Models
Texas Instruments INA300AIDGSR PCB symbols & footprints
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