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Texas Instruments INA4180A3QPWRQ1
- Part No.:
- INA4180A3QPWRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
INA4180A3QPWRQ1.pdf
- Description:
- IC CURR SENSE 1 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,487
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Product details
Overview
INA4180A3QPWRQ1 from Texas Instruments is an AEC-Q100 Grade 1 quad-channel current-sense amplifier for automotive high- and low-side sensing, featuring 100 V/V fixed gain, –0.2 V to +26 V input common-mode range, ±500 µV max offset at 12 V VCM, 150 kHz bandwidth, and 2 V/µs slew rate-used in battery monitoring and motor control systems.
For engineers reviewing the INA4180A3QPWRQ1 datasheet, INA4180A3QPWRQ1 pinout, INA4180A3QPWRQ1 application, or INA4180A3QPWRQ1 equivalent, this page delivers verified technical context, package mapping, channel-level pin functions, automotive-grade accuracy specs, and real-world selection guidance for multi-channel current sensing in safety-critical vehicle subsystems.
Technical Context
The INA4180A3QPWRQ1 implements a precision current-shunt monitor architecture with four independent matched-resistor gain stages (100 V/V each), enabling simultaneous sensing across four current paths without external gain-setting components. Its proprietary topology supports rail-to-rail output swing and maintains accuracy over –40°C to +125°C while rejecting common-mode transients up to 26 V independent of 2.7–5.5 V supply voltage.
Each channel features dedicated IN+, IN–, and OUT pins with no shared internal nodes-ensuring >100 dB channel separation at 100 kHz-and integrates ESD protection rated to HBM ±3 kV and CDM ±1 kV. Functional safety documentation is available to support ISO 26262 ASIL-B system integration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channels | 4 independent current-sense amplifiers in single IC |
| Gain | Fixed 100 V/V per channel-no external resistors needed; minimizes gain error drift |
| VCM Range | –0.2 V to +26 V-supports high-side sensing on 12 V/24 V bus rails without level shifting |
| Bandwidth | 150 kHz (A3 variant)-enables accurate response to fast motor phase-current transitions |
| Offset Voltage | ±500 µV max at VCM = 12 V-ensures <1% error at 5 mV sense voltage with 100× gain |
| Quiescent Current | 900 µA max total-supports always-on battery monitoring with minimal parasitic drain |
| Accuracy | ±1% max gain error-guarantees consistent scaling across all four channels for differential current analysis |
Pinout & Package
INA4180A3QPWRQ1 is housed in a 14-pin TSSOP (PW) package measuring 5.00 mm × 4.40 mm, optimized for thermal dissipation in automotive PCB layouts with exposed pad grounding capability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 7, 8, 14 | OUT1, OUT2, OUT3, OUT4 | Analog outputs for each channel-rail-to-rail swing enables full dynamic range use with 3.3 V or 5 V ADCs |
| 2, 6, 9, 13 | IN–1, IN–2, IN–3, IN–4 | Negative inputs-connect to load side (high-side) or ground side (low-side) of respective shunt resistors |
| 3, 5, 10, 12 | IN+1, IN+2, IN+3, IN+4 | Positive inputs-connect to bus-voltage side (high-side) or load side (low-side) of respective shunts |
| 4 | VS | Single 2.7–5.5 V supply for all four channels-decoupling required per TI layout guidelines |
| 11 | GND | Analog ground reference-must be tied to low-impedance PCB plane to maintain CMRR >84 dB |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C operation in engine bay and battery management modules |
| Matched 100 V/V resistor network | Reduces inter-channel gain mismatch to <0.1%, critical for balanced 3-phase motor current reconstruction |
| Rail-to-rail output swing | Swings within 5 mV of VS and GND-maximizes ADC utilization without external level-shifting circuitry |
| Functional safety documentation | Includes FIT rate, failure mode analysis, and diagnostic coverage data for ASIL-B system integration |
| High CMRR (84–100 dB) | Maintains accuracy during battery voltage ripple or load dump transients up to ±26 V common-mode |
Applications
| Battery Management System (BMS) | Electric Power Steering (EPS) |
|---|---|
|
Use Scenario: Real-time monitoring of pack-level charge/discharge current and cell-balancing currents in 12 V/48 V hybrid architectures. IC Role / Device Role / Timing Role: Quad-channel current sensor providing synchronized measurements across main bus, precharge path, and two balancing branches. Use Value: Enables <1% current accuracy across –40°C to +125°C, supporting SOC estimation and thermal derating algorithms without calibration drift. |
Use Scenario: Closed-loop torque control in brushless DC motor drivers where phase currents must be sampled simultaneously. IC Role / Device Role / Timing Role: Four-channel analog front-end delivering time-aligned current feedback to MCU's ADC for field-oriented control. Use Value: 150 kHz bandwidth and 2 V/µs slew rate capture rapid current transients during commutation, reducing torque ripple by >15% vs. lower-bandwidth alternatives. |
| Automotive Lighting Control | Onboard Charger (OBC) Monitoring |
|
Use Scenario: LED string current regulation and fault detection in adaptive headlamp modules with multiple independent zones. IC Role / Device Role / Timing Role: Per-zone current sensing for PWM dimming feedback and open/short-circuit detection. Use Value: ±500 µV offset ensures <2% error at 50 mA sense current-critical for maintaining photometric consistency across temperature. |
Use Scenario: Input AC line current, PFC stage current, DC link current, and battery charge current monitoring in bi-directional OBCs. IC Role / Device Role / Timing Role: Single-package solution for four critical current measurement points, eliminating layout mismatches between discrete sensors. Use Value: Matched 100 V/V gain and <0.1% inter-channel gain error enable precise power flow calculation and efficiency optimization. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar current-sense amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| INA4180A2QPWRQ1 | 50 V/V fixed gain (vs. 100 V/V); same quad-channel TSSOP-14 package and spec limits | Better suited for higher sense voltage ranges (>10 mV) where 100× gain would saturate output | Select when sensing across ≥10 mΩ shunts at ≥1 A-reduces risk of output clipping during peak current events |
| INA240A3QPWRQ1 | Single-supply, bidirectional, 100 V/V gain; wider VCM (–4 V to +80 V); higher quiescent current (1.8 mA) | Supports reverse-current detection and higher bus voltages (e.g., 48 V mild-hybrid systems) | Choose for 48 V architectures requiring reverse-current monitoring or extended common-mode tolerance beyond 26 V |
Compared with INA4180A2QPWRQ1 and INA240A3QPWRQ1, the INA4180A3QPWRQ1 offers optimal trade-off of gain, channel count, and power for 12 V/24 V quad-sensing tasks-delivering 100× amplification without sacrificing thermal margin or layout density.
Availability
INA4180A3QPWRQ1 is available at Aetrix Electronics and suitable for battery monitoring, electric power steering, automotive lighting control, and onboard charger applications requiring stable component supply across automotive production lifecycles.
Supply support for INA4180A3QPWRQ1 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 deep expertise in automotive-grade signal conditioning and power management ICs.
The INA4180-Q1 family was designed specifically for cost-optimized, high-reliability current sensing in automotive subsystems-emphasizing AEC-Q100 compliance, multi-channel integration, and wide common-mode operation without external gain components.
FAQ
What is the operating temperature range for the INA4180A3QPWRQ1?
The INA4180A3QPWRQ1 is qualified per AEC-Q100 Grade 1, supporting continuous operation from –40°C to +125°C ambient temperature. This range is validated across all electrical parameters including gain error, offset voltage, and bandwidth-making it suitable for under-hood and battery-pack installations where thermal stress is extreme.
Does the INA4180A3QPWRQ1 support high-side current sensing?
Yes, the INA4180A3QPWRQ1 supports high-side sensing with a common-mode input voltage range of –0.2 V to +26 V-fully independent of its 2.7–5.5 V supply voltage. Each channel's IN+ and IN– pins tolerate bus voltages up to 26 V, enabling direct connection to 12 V or 24 V power rails without level-shifting circuitry.
What is the maximum capacitive load the INA4180A3QPWRQ1 can drive?
The INA4180A3QPWRQ1 is stable with capacitive loads up to 1 nF, as specified in the Electrical Characteristics table. Driving larger loads may cause peaking or oscillation; for ADC interfacing, a series resistor (e.g., 10–50 Ω) is recommended between OUT and sampling capacitor to ensure stability and settling performance.
How does the gain option A3 translate to actual performance in the INA4180A3QPWRQ1?
The "A3" suffix denotes the 100 V/V fixed-gain variant of the INA4180-Q1 family. This gain is implemented via an internal laser-trimmed resistor network, delivering ±1% max gain error and <20 ppm/°C gain drift-enabling accurate current measurement across temperature without external calibration or trimming components.
Is functional safety documentation available for the INA4180A3QPWRQ1?
Yes, Texas Instruments provides functional safety documentation for the INA4180A3QPWRQ1-including FMEDA reports, FIT rate data, and diagnostic coverage analysis-to support ISO 26262 ASIL-B system development. This documentation is accessible through TI's functional safety portal and referenced in the device's official product folder.
INA4180A3QPWRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Current Sense
- Number of Circuits:
- 1
- Output Type:
- Differential, Rail-to-Rail
- Slew Rate:
- 2V/µs
- Gain Bandwidth Product:
- 350 kHz
- -3db Bandwidth:
- 350 kHz
- Current - Input Bias:
- 100 nA
- Voltage - Input Offset:
- 100 µV
- Current - Supply:
- -
- Current - Output / Channel:
- 8 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
INA4180A3QPWRQ1 FAQ
1.How can I place an order for INA4180A3QPWRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for INA4180A3QPWRQ1 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 INA4180A3QPWRQ1 reliable?
The price and inventory of INA4180A3QPWRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for INA4180A3QPWRQ1 is usually 5 days.
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4.How is shipping managed for INA4180A3QPWRQ1?
INA4180A3QPWRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your INA4180A3QPWRQ1 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 INA4180A3QPWRQ1?
For technical support, including INA4180A3QPWRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your INA4180A3QPWRQ1 requirements.
6.How does Aetrix verify that INA4180A3QPWRQ1 is sourced from the original manufacturer or authorized distributors?
All INA4180A3QPWRQ1 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 INA4180A3QPWRQ1 meets industry standards.
7.What is the process for return or replacement of INA4180A3QPWRQ1?
All INA4180A3QPWRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with INA4180A3QPWRQ1, 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 INA4180A3QPWRQ1 part is unused and in its original packaging.
Return procedure for INA4180A3QPWRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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