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Texas Instruments INA4180A2QPWRQ1
- Part No.:
- INA4180A2QPWRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
INA4180A2QPWRQ1.pdf
- Description:
- IC CURR SENSE 1 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,912
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Product details
Overview
INA4180A2QPWRQ1 from Texas Instruments is an AEC-Q100 Grade 1 quad-channel automotive current-sense amplifier with 50 V/V fixed gain, –0.2 V to +26 V input common-mode range, ±500 µV max offset at 12 V VCM, ±1% max gain error, and 2 V/µs slew rate-used for high-accuracy motor phase current monitoring in EV traction inverters.
For engineers reviewing the INA4180A2QPWRQ1 datasheet, INA4180A2QPWRQ1 pinout, INA4180A2QPWRQ1 application, or INA4180A2QPWRQ1 equivalent, key selection criteria include quad-channel integration for multi-phase systems, rail-to-rail output swing under 5.5 V supply, thermal performance in TSSOP-14 (RθJA = 115.9°C/W), and functional safety documentation support for ASIL-B system design.
Technical Context
The INA4180A2QPWRQ1 implements a precision current-shunt monitor architecture with matched internal gain resistors (50 V/V) enabling stable gain accuracy across temperature (±1% max, 1.5–20 ppm/°C drift). Its input stage operates independently of supply voltage, allowing direct sensing of bus voltages up to 26 V while powered from 2.7–5.5 V.
Each of its four channels features independent IN+ and IN− inputs, rail-to-rail output swing (VS − 0.03 V / GND + 0.005 V), and 210 kHz small-signal bandwidth-optimized for real-time overcurrent detection and closed-loop motor control feedback in automotive powertrain subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain | 50 V/V fixed-enables precise scaling of 10–100 mV shunt voltage drops to 0.5–5 V ADC-friendly output range |
| Common-mode range | –0.2 V to +26 V-supports both high-side (battery/bus) and low-side (ground-return) sensing without level-shifting |
| Offset voltage | ±500 µV max at VCM = 12 V-ensures <1% error when measuring ≥50 mV sense voltage (e.g., 50 A × 1 mΩ) |
| Bandwidth | 210 kHz-captures fast transient currents in BLDC/PMSM motor commutation (≤4.7 µs rise time) |
| Quiescent current | 900 µA max (all 4 channels)-enables always-on battery monitoring with <4.5 mW total dissipation at 5 V |
| Output swing | VS − 0.03 V / GND + 0.005 V-delivers full dynamic range to 12-bit ADCs with minimal headroom loss |
| Supply voltage | 2.7 V to 5.5 V-compatible with automotive 3.3 V or 5 V domain rails, including post-LDO domains |
Pinout & Package
The INA4180A2QPWRQ1 is housed in a 14-pin TSSOP (PW) package measuring 5.00 mm × 4.40 mm, optimized for thermal dissipation (RθJA = 115.9°C/W) and board-space efficiency in multi-channel automotive modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 7, 8, 14 | OUT1–OUT4 | Analog outputs for channels 1–4-each drives ADC input or comparator with rail-to-rail capability |
| 2, 6, 9, 13 | IN−1–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+4 | Positive inputs-connect to bus side (high-side) or load side (low-side) of respective shunt resistors |
| 4 | VS | Single analog supply (2.7–5.5 V)-powers all four channels; decoupling capacitor required at pin |
| 11 | GND | Analog ground reference-must be star-connected to shunt resistor ground to minimize noise coupling |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C ambient operation-meets automotive powertrain and chassis ECU requirements |
| Functional safety documentation | Includes FIT rate, failure mode analysis, and diagnostic coverage guidance-supports ISO 26262 ASIL-B development |
| Rail-to-rail output | Swings within 30 mV of VS and 5 mV above GND-maximizes ADC resolution without external level-shifting |
| Matched internal gain resistors | Minimizes gain error (±1% max) and drift (≤20 ppm/°C)-eliminates external resistor matching and layout sensitivity |
| High CMRR (84–100 dB) | Maintains accuracy despite 26 V bus transients-rejects common-mode noise in noisy 12 V/48 V vehicle networks |
| Low quiescent current per channel | 225 µA/channel typical-enables simultaneous monitoring of 4 motor phases or battery cells with minimal system power impact |
Applications
| Motor Phase Current Monitoring | Battery Cell Balancing Control |
|---|---|
Use Scenario: Real-time measurement of individual phase currents in 3-phase inverter driving PMSM traction motor. IC Role / Device Role / Timing Role: Quad-channel current-shunt monitor providing synchronized analog outputs for each motor phase, sampled by MCU ADC at ≥10 kSPS. Use Value: Enables field-oriented control (FOC) with <1% current error across full torque range, improving efficiency and reducing torque ripple. |
Use Scenario: Monitoring charge/discharge current per cell in 12S Li-ion battery pack for active balancing decision logic. IC Role / Device Role / Timing Role: Four independent channels measure current through parallel cell strings, feeding real-time data to BMS microcontroller. Use Value: Detects >50 mA inter-cell current mismatch with ±500 µV offset-triggering balancing FETs before SOC deviation exceeds 1%. |
| Onboard Charger Input Stage Sensing | Electric Power Steering (EPS) Torque Feedback |
Use Scenario: High-side current sensing on AC/DC rectifier input to detect grid fault conditions (overcurrent, short-circuit). IC Role / Device Role / Timing Role: Channel 1 monitors rectifier input; remaining channels reserved for DC-link and battery-side sensing in integrated OBC. Use Value: 210 kHz bandwidth captures sub-cycle faults; 26 V common-mode range withstands 400 VAC peak transients via isolation barrier. |
Use Scenario: Low-side current sensing on EPS motor H-bridge legs to derive torque command feedback for assist ratio control. IC Role / Device Role / Timing Role: Two channels monitor dual-winding motor legs; third and fourth support redundancy or auxiliary sensor fusion. Use Value: ±150 µV offset at 0 V VCM enables accurate <1 A stall current detection-critical for fail-safe torque limiting below 5 km/h. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar current-sense amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| INA4181A2QPWRQ1 | Same quad-channel, 50 V/V gain, TSSOP-14 package-but includes shutdown pin (pin 1) for power gating | Required where dynamic power cycling of current sensing is needed (e.g., sleep-mode battery monitoring) | Select INA4181A2QPWRQ1 if system-level power sequencing mandates per-channel enable/disable; otherwise INA4180A2QPWRQ1 offers simpler biasing |
| INA240A2QDRQ1 | Dual-channel, 50 V/V, SOIC-8; higher bandwidth (400 kHz), lower offset (±20 µV), but no quad integration | Suitable for 2-phase systems or where PCB area allows two separate devices instead of one quad | Choose INA240A2QDRQ1 when higher precision (<0.1% gain error) and faster response are prioritized over channel density and board space |
Compared with INA4181A2QPWRQ1, the INA4180A2QPWRQ1 lacks shutdown control but simplifies layout with fewer external components; versus INA240A2QDRQ1, it trades bandwidth and offset for integrated quad functionality-making it optimal for space-constrained 3-phase motor control where channel count and thermal uniformity outweigh marginal precision gains.
Availability
INA4180A2QPWRQ1 is available at Aetrix Electronics and suitable for automotive motor control, battery management systems, and onboard charger designs requiring stable component supply across extended temperature and long production lifecycles.
Supply support for INA4180A2QPWRQ1 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 powertrain and chassis systems-emphasizing AEC-Q100 compliance, functional safety readiness, and seamless integration into multi-phase architectures.
FAQ
What is the maximum common-mode voltage the INA4180A2QPWRQ1 can handle?
The INA4180A2QPWRQ1 supports a common-mode input voltage range of –0.2 V to +26 V, independent of its 2.7–5.5 V supply voltage. This allows direct high-side sensing on 12 V or 48 V automotive buses without external level-shifting circuitry. Sustained operation above 26 V may cause permanent damage, per absolute maximum ratings.
Does the INA4180A2QPWRQ1 require external gain-setting resistors?
No. The INA4180A2QPWRQ1 integrates a precision-matched internal resistor network configured for 50 V/V fixed gain. This eliminates external resistor selection, layout sensitivity, and temperature-induced gain drift-delivering ±1% max gain error across –40°C to +125°C without calibration.
How many independent current-sensing channels does the INA4180A2QPWRQ1 provide?
The INA4180A2QPWRQ1 provides four fully independent current-sense amplifier channels in a single 14-pin TSSOP package. Each channel has dedicated IN+, IN−, and OUT pins, enabling simultaneous monitoring of four separate current paths-ideal for 3-phase motor control with neutral current or multi-string battery monitoring.
Is the INA4180A2QPWRQ1 qualified for automotive safety-critical systems?
Yes. The INA4180A2QPWRQ1 is AEC-Q100 Grade 1 qualified (–40°C to +125°C) and designated functional safety-capable, with documentation available-including FIT rate data and failure mode analysis-to support ISO 26262 ASIL-B system-level development for motor control and battery management applications.
What is the typical quiescent current consumption of the INA4180A2QPWRQ1?
The INA4180A2QPWRQ1 draws a maximum of 900 µA total quiescent current across all four channels at 25°C, with typical consumption around 690 µA. This low power draw enables always-on current monitoring in automotive systems without compromising battery standby life-especially critical for 12 V stop-start and 48 V mild-hybrid architectures.
INA4180A2QPWRQ1 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
INA4180A2QPWRQ1 FAQ
1.How can I place an order for INA4180A2QPWRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for INA4180A2QPWRQ1 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 INA4180A2QPWRQ1 reliable?
The price and inventory of INA4180A2QPWRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for INA4180A2QPWRQ1 is usually 5 days.
3.What payment methods are accepted for INA4180A2QPWRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for INA4180A2QPWRQ1 transactions.
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4.How is shipping managed for INA4180A2QPWRQ1?
INA4180A2QPWRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your INA4180A2QPWRQ1 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 INA4180A2QPWRQ1?
For technical support, including INA4180A2QPWRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your INA4180A2QPWRQ1 requirements.
6.How does Aetrix verify that INA4180A2QPWRQ1 is sourced from the original manufacturer or authorized distributors?
All INA4180A2QPWRQ1 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 INA4180A2QPWRQ1 meets industry standards.
7.What is the process for return or replacement of INA4180A2QPWRQ1?
All INA4180A2QPWRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with INA4180A2QPWRQ1, 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 INA4180A2QPWRQ1 part is unused and in its original packaging.
Return procedure for INA4180A2QPWRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
INA4180A2QPWRQ1 Tags
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