My Inquiry
My Account
Texas Instruments INA201AQDGKRQ1
- Part No.:
- INA201AQDGKRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Current Regulation/Management
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
INA201AQDGKRQ1.pdf
- Description:
- IC CURRENT MONITOR 3.5% 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,729
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
INA201AQDGKRQ1 from Texas Instruments is an automotive-grade, high-speed current-sense amplifier with integrated comparator and 0.6V reference, designed for low-side or high-side shunt monitoring in –16V to +80V common-mode systems. It delivers 50V/V gain, 300kHz bandwidth, ≤3.5% total output error over temperature, and operates from 2.7V–18V supply. It is used in electric power steering (EPS) and brake system overcurrent protection.
For engineers reviewing the INA201AQDGKRQ1 datasheet, INA201AQDGKRQ1 pinout, INA201AQDGKRQ1 application, or INA201AQDGKRQ1 equivalent, this page provides verified functional specifications, validated VSSOP-8 package mapping, confirmed comparator latching behavior, and two technically documented alternative parts for automotive current-sensing designs requiring AEC-Q100 Grade 1 compliance.
Technical Context
The INA201AQDGKRQ1 implements a precision current-shunt monitor with dual-op-amp front-end architecture enabling operation across –16V to +80V common-mode voltage while maintaining 100dB CMR at 12V input. Its integrated open-drain comparator uses an internal 0.6V reference and supports external trip-point setting via resistor dividers on CMPIN.
Functional mode is single-supply operation (2.7V–18V), with RESET pin controlling latched vs transparent comparator behavior. The device draws ≤1800μA quiescent current and features 1.3μs typical comparator response time with 8mV hysteresis - critical for fast overcurrent detection in safety-critical EPS and ESC systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain | 50V/V - scales 20mV–100mV shunt voltage to 1V–5V output for direct ADC interfacing |
| Bandwidth | 300kHz - supports fast transient current detection in motor control loops |
| Common-mode range | –16V to +80V - enables direct sensing in 48V battery systems and negative-rail fault conditions |
| Total output error | ±3.5% over –40°C to +125°C - ensures reliable threshold triggering in automotive ambient extremes |
| Comparator reference | 0.6V internal - sets fixed trip point; external divider adjusts effective current threshold |
| Quiescent current | 1800μA max - compatible with always-on vehicle subsystems without excessive standby drain |
| Supply voltage | 2.7V–18V - matches automotive battery voltage range including cold-crank and load-dump transients |
Pinout & Package
VSSOP-8 package (3mm × 4.9mm), thermally enhanced for automotive under-hood environments; RoHS-compliant, lead-free, and qualified per AEC-Q100 Grade 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VS) | Analog power supply | Accepts 2.7V–18V; powers both amplifier and comparator blocks |
| 2 (OUT) | Analog output | 50× amplified shunt voltage; rail-to-rail swing capability supports wide dynamic range |
| 3 (CMPIN) | Comparator non-inverting input | Receives externally divided OUT signal to set programmable overcurrent threshold |
| 4 (GND) | Analog ground | Reference return for amplifier and comparator; requires low-impedance PCB connection |
| 5 (RESET) | Comparator reset control | Active-low logic input; grounding or floating enables transparent comparator mode |
| 6 (CMPOUT) | Open-drain comparator output | Sinks up to 2.35mA; requires external pull-up for system-level interrupt signaling |
| 7 (VIN–) | Shunt low-side input | Connects to shunt resistor's grounded end for low-side sensing or system return path |
| 8 (VIN+) | Shunt high-side input | Connects to shunt resistor's load side; tolerates –16V to +80V common-mode voltage |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C ambient operation in EPS, ESC, and body control modules |
| Integrated latching comparator | Prevents nuisance tripping during transient overloads; latch cleared only by active RESET pulse |
| Wide common-mode input range | –16V to +80V enables direct sensing in 48V architectures and negative-bus fault diagnostics |
| Low offset drift | 5μV/°C dVOS/dT ensures stable gain accuracy across full automotive temperature range |
| High CMR at elevated frequencies | 100dB rejection at 12V common-mode up to 100kHz - suppresses PWM noise in motor drives |
Applications
| Electric Power Steering (EPS) | Brake System Control Unit |
|---|---|
Use Scenario: Real-time motor phase current monitoring during assist torque delivery and fault detection. IC Role / Device Role / Timing Role: High-side current shunt monitor feeding analog feedback to MCU and triggering hardware-level overcurrent shutdown via CMPOUT. Use Value: 300kHz bandwidth captures rapid motor stall events; latching comparator prevents false resets during regenerative braking transients. |
Use Scenario: Monitoring solenoid coil current in ABS/ESC hydraulic modulators to detect open/short faults and overtemperature conditions. IC Role / Device Role / Timing Role: Low-side current sense amplifier with comparator output driving microcontroller interrupt for immediate valve deactivation. Use Value: –16V to +80V common-mode range accommodates solenoid flyback voltages; 0.6V reference enables precise 5A–20A trip thresholds. |
| Body Control Module (BCM) | Electronic Stability Control (ESC) |
Use Scenario: Fuseless load monitoring for lighting, HVAC, and window lift circuits with automatic overcurrent isolation. IC Role / Device Role / Timing Role: High-side current sensor providing analog output to BCM MCU and latched comparator output to dedicated safety supervisor IC. Use Value: 50V/V gain converts 100mΩ shunt voltage into 1V–5V range compatible with 12-bit ADCs; RESET pin enables centralized fault clearing. |
Use Scenario: Wheel motor current supervision in electric all-wheel-drive ESC systems during torque vectoring maneuvers. IC Role / Device Role / Timing Role: Dual-role device: analog output feeds real-time torque estimation algorithm; CMPOUT triggers immediate torque reduction on overcurrent. Use Value: 3.5% max error over temperature ensures consistent current reporting across chassis thermal gradients; VSSOP-8 footprint fits space-constrained ESC PCB layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar current-sense amplifier with comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| INA200AQDGKRQ1 | 20V/V gain, 500kHz bandwidth, identical package and comparator architecture | Better suited for higher-current, lower-precision sensing where 100mV shunt drop yields sufficient output swing | Select when system shunt voltage exceeds 50mV and bandwidth >300kHz is required |
| INA202AQDGKRQ1 | 100V/V gain, 200kHz bandwidth, same AEC-Q100 Grade 1 qualification and VSSOP-8 package | Optimized for ultra-low-current detection (e.g., <1A) where 20mV shunt drop must produce ≥2V output | Select when sensing sub-ampere loads or when highest gain accuracy outweighs bandwidth needs |
Compared with INA200AQDGKRQ1 and INA202AQDGKRQ1, the INA201AQDGKRQ1 offers the optimal balance of gain (50V/V), bandwidth (300kHz), and error (±3.5%) for mid-range automotive motor and solenoid current monitoring - making it the preferred choice for EPS and brake control where both speed and resolution matter.
Availability
INA201AQDGKRQ1 is available at Aetrix Electronics and suitable for electric power steering (EPS), brake system control, body control module (BCM), and electronic stability control (ESC) applications requiring stable component supply across automotive production lifecycles.
Supply support for INA201AQDGKRQ1 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 INA20x-Q1 product line was engineered specifically for AEC-Q100-compliant current sensing in safety-critical vehicle subsystems - emphasizing wide common-mode range, integrated fault detection, and robust thermal performance in under-hood environments.
FAQ
What is the gain accuracy of the INA201AQDGKRQ1 over temperature?
The INA201AQDGKRQ1 has ±2% gain error over –40°C to +125°C, contributing to its ±3.5% total output error specification. This accuracy is maintained across its full 50V/V gain range and enables reliable current measurement in automotive environments where thermal cycling is severe. The INA201AQDGKRQ1 datasheet confirms this value in Section 6.5 under "Gain error" at temperature extremes.
Does the INA201AQDGKRQ1 support high-side current sensing in 48V automotive systems?
Yes, the INA201AQDGKRQ1 supports high-side sensing in 48V systems via its –16V to +80V common-mode input range. Its VIN+ and VIN– pins tolerate up to +80V relative to GND, allowing direct connection across shunts in 48V battery rails, even during load-dump transients. This capability is explicitly validated in the Absolute Maximum Ratings table (Section 6.1) of the INA201AQDGKRQ1 datasheet.
How does the comparator latching function work on the INA201AQDGKRQ1?
The INA201AQDGKRQ1 comparator latches on overcurrent detection and holds CMPOUT low until RESET is pulsed low. When RESET is grounded or left floating, the comparator operates in transparent mode. This behavior is confirmed in Section 8.3.1 and Figure 8-1 of the INA201AQDGKRQ1 datasheet, and enables fail-safe fault retention in EPS and brake systems where transient spikes must not clear protection states.
What is the maximum capacitive load the INA201AQDGKRQ1 output can drive without oscillation?
The INA201AQDGKRQ1 output remains stable with up to 10nF capacitive load, as specified in Section 6.5 under "CLOAD" in the Electrical Characteristics table. Exceeding this value risks sustained oscillation due to phase margin degradation - a critical design constraint when routing OUT to long traces or high-input-capacitance ADCs. This limit is measured and guaranteed across temperature and supply conditions for the INA201AQDGKRQ1.
Is the 0.6V internal reference of the INA201AQDGKRQ1 trimmed for accuracy?
Yes, the INA201AQDGKRQ1's 0.6V internal reference has ±14mV tolerance over –40°C to +125°C (586mV to 625mV), as documented in Section 6.6 "Threshold" specifications. This trimmed reference enables precise overcurrent trip points when used with external resistor dividers on CMPIN - a key requirement for consistent fault detection across vehicle production batches and operating temperatures.
INA201AQDGKRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Current Monitor
- Sensing Method:
- High-Side
- Accuracy:
- ±3.5%
- Voltage - Input:
- -16V ~ 80V
- Current - Output:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
INA201AQDGKRQ1 FAQ
1.How can I place an order for INA201AQDGKRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for INA201AQDGKRQ1 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 INA201AQDGKRQ1 reliable?
The price and inventory of INA201AQDGKRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for INA201AQDGKRQ1 is usually 5 days.
3.What payment methods are accepted for INA201AQDGKRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for INA201AQDGKRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for INA201AQDGKRQ1?
INA201AQDGKRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your INA201AQDGKRQ1 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 INA201AQDGKRQ1?
For technical support, including INA201AQDGKRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your INA201AQDGKRQ1 requirements.
6.How does Aetrix verify that INA201AQDGKRQ1 is sourced from the original manufacturer or authorized distributors?
All INA201AQDGKRQ1 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 INA201AQDGKRQ1 meets industry standards.
7.What is the process for return or replacement of INA201AQDGKRQ1?
All INA201AQDGKRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with INA201AQDGKRQ1, 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 INA201AQDGKRQ1 part is unused and in its original packaging.
Return procedure for INA201AQDGKRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
INA201AQDGKRQ1 Tags
.jpg)
-
PSSI2021SAY,115
Nexperia USA Inc.
-
BCR401RE6327HTSA1
Infineon Technologies
-
INA199B2DCKR
Texas Instruments
-
INA199A1DCKR
Texas Instruments
-
INA199B1DCKR
Texas Instruments
-
NSI45015WT1G
onsemi
-
NSI45020T1G
onsemi
-
NSI45030AT1G
onsemi
-
NSI45025AT1G
onsemi
-
NSI45020AT1G
onsemi
-
NSI50010YT1G
onsemi
-
LM334Z/NOPB
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
