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Texas Instruments INA210BQDCKRQ1
- Part No.:
- INA210BQDCKRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
INA210BQDCKRQ1.pdf
- Description:
- IC CURR SENSE 1 CIRCUIT SC70-6
- Quantity:
- Payment:
- Shipping:
Inventory:4,874
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Product details
Overview
INA210BQDCKRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive current-shunt monitor with zero-drift architecture, 200 V/V fixed gain, ±100 µV max offset voltage, and –0.3 V to 26 V common-mode input range. It operates from 2.7 V to 26 V supply, draws ≤100 µA quiescent current, and supports bidirectional low-side or high-side shunt sensing in motor control and body electronics.
For engineers reviewing the INA210BQDCKRQ1 datasheet, INA210BQDCKRQ1 pinout, INA210BQDCKRQ1 application, or INA210BQDCKRQ1 equivalent, key selection criteria include its 200 V/V gain accuracy (±1% over temperature), 14 kHz bandwidth, SC70-6 package footprint, and functional safety documentation support for ISO 26262 ASIL-B–capable systems.
Technical Context
The INA210BQDCKRQ1 implements a precision zero-drift chopper-stabilized amplifier topology optimized for current-sense applications, enabling accurate measurement of sub-10-mV shunt voltage drops. Its differential input stage rejects common-mode voltages up to 26 V independent of supply rail, supporting direct connection to high-voltage battery rails in 12 V/24 V automotive systems.
It features a buffered voltage output referenced to an externally configurable REF pin, allowing flexible output offset setting (0 V to V+). The device lacks a dedicated shutdown pin but supports power-gating via V+ control, with input bias currents <35 µA and internal 1-MΩ feedback paths that require careful handling during system-level power sequencing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain | 200 V/V - sets output = 200 × (VIN+ – VIN−) + VREF; enables 10-mV full-scale shunt sensing at ±0.5% linearity |
| Offset voltage (max) | ±100 µV - allows accurate current measurement with 10-mV shunt drop; RTI error ≤0.5% of full scale at 50 mΩ shunt |
| Common-mode range | –0.3 V to 26 V - supports direct sensing on battery rails, including reverse-battery tolerant configurations |
| Supply voltage | 2.7 V to 26 V - powers from microcontroller LDO or main battery; no external regulator needed in 3.3 V or 5 V systems |
| Quiescent current | ≤100 µA - enables always-on current monitoring in low-power wake-up circuits without significant battery drain |
| Bandwidth | 14 kHz - supports real-time motor phase current sampling up to ~1.4 kHz PWM frequencies with <1% gain error |
| Temp range | –40°C to +125°C - qualified per AEC-Q100 Grade 1; specified across full junction temperature range for under-hood deployment |
Pinout & Package
INA210BQDCKRQ1 is housed in a 6-pin SC70 package (2.00 mm × 1.25 mm body size) with 0.65 mm pitch, optimized for space-constrained automotive PCBs and compatible with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| REF (Pin 1) | Reference input | DC bias point for output; sets output offset (0 V to V+); must be low-impedance or buffered to preserve CMRR |
| GND (Pin 2) | Ground reference | Analog ground return; separate from power ground in mixed-signal layouts to avoid noise coupling into sense path |
| V+ (Pin 3) | Power supply | Single 2.7–26 V supply; bypass with 0.01–0.1 µF capacitor close to pin to suppress supply noise and ensure stability |
| IN+ (Pin 4) | Differential input (+) | Connects to supply side of shunt; high-impedance input (≥1 MΩ) minimizes loading on high-side sensing nodes |
| IN− (Pin 5) | Differential input (−) | Connects to load side of shunt; matched input impedance ensures <0.1 µV/°C drift contribution from bias current mismatch |
| OUT (Pin 6) | Voltage output | Buffered rail-to-rail output (to GND +5 mV / to V+ −200 mV); drives ADC inputs or comparator thresholds directly |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for automotive use from –40°C to +125°C ambient; includes HTOL, ESD, and thermal cycling test reports |
| Zero-drift architecture | Enables stable 10-mV full-scale shunt sensing with <0.5 µV/°C offset drift-reducing calibration frequency in production ECUs |
| 26-V common-mode capability | Allows direct connection to 12 V/24 V battery rails without level-shifting; eliminates need for external attenuators or isolation |
| Functional safety documentation | Includes FIT rate, failure mode analysis, and diagnostic coverage guidance to accelerate ISO 26262 ASIL-B system integration |
| Low quiescent current | ≤100 µA operation enables continuous current monitoring in always-on domains (e.g., battery disconnect supervision) without compromising standby life |
Applications
| Body Control Module | Motor Control |
|---|---|
Use Scenario: Real-time monitoring of door lock actuator, seat heater, or lighting load currents for fault detection and energy accounting. IC Role / Device Role / Timing Role: High-side current sensor feeding MCU ADC; provides isolated current data without ground loop interference. Use Value: Enables open-circuit, short-circuit, and overcurrent detection within 10 ms using 10-mV shunt drop-reducing PCB area vs. legacy 100-mV solutions by 90%. | Use Scenario: Phase current sensing in BLDC motor drivers for field-oriented control (FOC) in HVAC blowers or power steering assist. IC Role / Device Role / Timing Role: Low-side shunt monitor with 14 kHz bandwidth delivering synchronized current samples to PWM timer-triggered ADC captures. Use Value: Supports 10-bit ADC resolution at 10-mV full scale, achieving ±1% current accuracy across –40°C to 125°C without recalibration. |
| Electronic Stability Control | Wireless Charging Transmitter |
Use Scenario: Monitoring ABS pump motor current to detect mechanical binding or electrical faults during active braking events. IC Role / Device Role / Timing Role: High-side current sensor operating at 26 V common-mode; interfaces to safety MCU via isolated SPI or analog channel. Use Value: Delivers <1 µs propagation delay and <0.5% gain error over temperature-meeting ASIL-B timing and accuracy requirements. | Use Scenario: Input current monitoring in GaN-based 15 W wireless charging transmitters to enforce IEC 62368-1 current limits and thermal derating. IC Role / Device Role / Timing Role: Bidirectional shunt monitor on primary-side DC link; outputs voltage proportional to charge/discharge current. Use Value: Zero-drift performance maintains ±100 µV offset across 100,000-cycle thermal cycles-ensuring long-term compliance without field recalibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar current-sense amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| INA211BQDCKRQ1 | 500 V/V gain, same SC70-6 package, ±100 µV offset, 7 kHz bandwidth | Better suited for lower-current shunts (<20 mA full scale); reduced bandwidth limits high-frequency PWM current capture | Select when higher gain is required for ultra-low shunt dissipation, accepting trade-off in signal bandwidth and noise gain |
| MAX40056ATA+T | 200 V/V gain, 25 V common-mode, ±50 µV offset, 1 MHz bandwidth, 8-pin TDFN | Higher bandwidth enables >100 kHz switching current monitoring; larger package increases layout area | Choose for fast-switching GaN/SiC applications requiring wider bandwidth, accepting higher cost and different footprint |
Compared with INA211BQDCKRQ1 and MAX40056ATA+T, the INA210BQDCKRQ1 delivers optimal balance of automotive qualification, 14 kHz bandwidth, and minimal 2.5 mm² footprint-making it preferred for cost-sensitive, space-constrained 12 V body electronics where 10–100 kHz current dynamics dominate.
Availability
INA210BQDCKRQ1 is available at Aetrix Electronics and suitable for body control modules, motor control units, electronic stability control systems, and wireless charging transmitters requiring stable component supply across automotive production lifecycles.
Supply support for INA210BQDCKRQ1 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 INA21x-Q1 product line was designed specifically for AEC-Q100-compliant current sensing in harsh automotive environments-targeting high-accuracy, low-power, and functional-safety-aware applications such as battery management, motor control, and chassis electronics.
FAQ
What is the maximum common-mode voltage supported by the INA210BQDCKRQ1?
The INA210BQDCKRQ1 supports a common-mode input voltage range of –0.3 V to 26 V, enabling direct connection to 12 V and 24 V automotive battery rails. This specification holds across the full operating temperature range of –40°C to +125°C and is independent of the 2.7 V to 26 V supply voltage applied to V+. Exceeding 26 V continuously may cause permanent damage.
Does the INA210BQDCKRQ1 support bidirectional current sensing?
Yes, the INA210BQDCKRQ1 supports bidirectional current sensing through its differential input architecture and externally configurable REF pin. When REF is set to mid-supply (e.g., V+/2), the output voltage centers at that reference, allowing positive and negative shunt voltage drops to produce corresponding above- and below-reference output swings-enabling accurate measurement of charging and discharging currents.
What is the gain accuracy specification for the INA210BQDCKRQ1 over temperature?
The INA210BQDCKRQ1 has a gain error of ±1% maximum over the full operating temperature range of –40°C to +125°C. This value applies to versions designated "A" and "B", which include the INA210BQDCKRQ1. Gain drift is further limited to 10 ppm/°C, ensuring predictable scaling across thermal transients without software compensation.
Can the INA210BQDCKRQ1 be used in high-side sensing configurations?
Yes, the INA210BQDCKRQ1 is explicitly designed for both high-side and low-side current sensing. Its wide –0.3 V to 26 V common-mode input range allows IN+ and IN− to operate at voltages far exceeding the V+ supply rail-making it suitable for high-side placement between battery and load, even in 24 V commercial vehicle systems.
Is functional safety documentation available for the INA210BQDCKRQ1?
Yes, Texas Instruments provides functional safety documentation for the INA210BQDCKRQ1, including FIT rate calculations, failure mode effects and diagnostic analysis (FMEDA), and safety manual guidance. These resources support ISO 26262 ASIL-B system development but do not constitute full certification-the final safety case remains the responsibility of the end-system integrator.
INA210BQDCKRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- Zero-Drift
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Current Sense
- Number of Circuits:
- 1
- Output Type:
- Single-Ended
- Slew Rate:
- 0.4V/µs
- Gain Bandwidth Product:
- 14 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 28 µA
- Voltage - Input Offset:
- 0.55 µV
- Current - Supply:
- 65µA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 26 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-6
INA210BQDCKRQ1 FAQ
1.How can I place an order for INA210BQDCKRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for INA210BQDCKRQ1 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 INA210BQDCKRQ1 reliable?
The price and inventory of INA210BQDCKRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for INA210BQDCKRQ1 is usually 5 days.
3.What payment methods are accepted for INA210BQDCKRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for INA210BQDCKRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for INA210BQDCKRQ1?
INA210BQDCKRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your INA210BQDCKRQ1 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 INA210BQDCKRQ1?
For technical support, including INA210BQDCKRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your INA210BQDCKRQ1 requirements.
6.How does Aetrix verify that INA210BQDCKRQ1 is sourced from the original manufacturer or authorized distributors?
All INA210BQDCKRQ1 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 INA210BQDCKRQ1 meets industry standards.
7.What is the process for return or replacement of INA210BQDCKRQ1?
All INA210BQDCKRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with INA210BQDCKRQ1, 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 INA210BQDCKRQ1 part is unused and in its original packaging.
Return procedure for INA210BQDCKRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
INA210BQDCKRQ1 Tags
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