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Monolithic Power Systems Inc. MCQ1823GQTE-310BRNAEC-P
- Part No.:
- MCQ1823GQTE-310BRNAEC-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- Current Sensors
- Package:
- 12-PowerWFQFN
- Datasheet:
-
MCQ1823GQTE-310BRNAEC-P.pdf
- Description:
- AUTOMOTIVE-GRADE, LINEAR HALL-EF
- Quantity:
- Payment:
- Shipping:
Inventory:3,222
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Product details
Overview
MCQ1823GQTE-310BRNAEC-P from Monolithic Power Systems is an automotive-grade, bidirectional linear Hall-effect current sensor IC with integrated over-current detection (OCD), housed in a TQFN-12 (3mm×3mm) package and AEC-Q100 Grade 1 qualified. It delivers ±10A sensing range, 132mV/A sensitivity, ±2.5% total output error, 120kHz bandwidth, and 1µs OCD response time for motor control and power system protection.
For engineers reviewing the MCQ1823GQTE-310BRNAEC-P datasheet, MCQ1823GQTE-310BRNAEC-P pinout, MCQ1823GQTE-310BRNAEC-P application, or MCQ1823GQTE-310BRNAEC-P equivalent, this page provides verified technical context, validated pin functions, confirmed AEC-Q100 compliance, real-world use cases in automotive and industrial power systems, and cross-checked alternative part guidance.
Technical Context
The MCQ1823GQTE-310BRNAEC-P uses a differential Hall array to reject homogeneous and gradient stray magnetic fields, enabling accurate current measurement in electrically noisy environments. Its 0.6mΩ internal conductor minimizes power loss while supporting high-current paths adjacent to the sensing die.
It integrates a ratiometric analog output (VOUT) proportional to ±10A primary current, factory-trimmed for ±2.5% total error across –40°C to +125°C, and features a configurable open-drain /OCD output with 50–240% IPMAX threshold setting via external pull-up resistor.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Current Range | ±10A bidirectional - supports full-scale AC/DC current monitoring in compact motor drivers and battery management systems. |
| Sensitivity | 132mV/A - enables precise low-noise analog feedback with minimal signal conditioning required. |
| Total Output Error | ±2.5% - guaranteed accuracy over full temperature range ensures reliable closed-loop control without recalibration. |
| Bandwidth | 120kHz - captures fast transient currents in switch-mode power supplies and inverter gate drive circuits. |
| OCD Response Time | 1µs - provides ultra-fast fault detection for IGBT/MOSFET short-circuit protection in automotive traction inverters. |
| Conductor Resistance | 0.6mΩ - reduces thermal dissipation (<120mW at 10A) and eliminates need for external shunt resistors. |
| Supply Voltage | 3.0–3.6V - compatible with standard 3.3V automotive microcontroller domains and low-power domain regulators. |
Pinout & Package
TQFN-12 (3mm × 3mm, 0.5mm pitch) package with wettable flanks, AEC-Q100 qualified, MSL Level 1, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 IP+ | Primary current input (+) | Fused internal high-side current path terminal; connects directly to high-current bus trace. |
| 3, 4 IP- | Primary current input (−) | Fused internal low-side current path terminal; completes current loop through integrated conductor. |
| 5 GND | Signal ground reference | Common return for analog output and OCD logic; must be connected to low-impedance PCB ground plane. |
| 6 /OCD | Open-drain over-current flag | Active-low fault indicator; requires external pull-up (10kΩ–500kΩ) to set custom OCD threshold between 50%–240% of ±10A. |
| 7–10 NC | No connection | Internally unconnected pins; must remain floating or tied to GND per layout guidelines. |
| 11 VOUT | Analog output voltage | Ratiometric output centered at VCC/2 (1.65V @ 3.3V); drives 4.7kΩ load with ≤4.7nF capacitance. |
| 12 VCC | Power supply input | 3.3V supply rail; requires 0.1µF–1µF ceramic bypass capacitor to GND placed within 2mm of pin. |
Key Features
| Feature | Design Value |
|---|---|
| Differential Hall sensing | Rejects external magnetic interference up to gradient fields, eliminating need for magnetic shielding in EV motor controllers. |
| Factory-trimmed offset & sensitivity | Enables ±2.5% total error without end-of-line calibration, reducing test time and BOM cost in high-volume automotive production. |
| Configurable OCD threshold | Supports dynamic fault-level adaptation via single external resistor-no firmware update needed when changing system current limits. |
| Ultra-small TQFN-12 footprint | Reduces board area by >60% vs. legacy SOIC-8 current sensors, enabling placement directly on high-current PCB traces. |
| AEC-Q100 Grade 1 qualification | Validated for operation from –40°C to +125°C junction temperature, meeting automotive powertrain and ADAS reliability requirements. |
Applications
| Motor Control | Audio Driver Current Control |
|---|---|
Use Scenario: Real-time phase current sensing in 3-phase BLDC motor inverters for electric power steering (EPS) and HVAC blowers. IC Role / Device Role / Timing Role: Bidirectional current sensor providing isolated analog feedback to MCU ADC with 120kHz bandwidth and <4µs propagation delay. Use Value: Enables field-oriented control (FOC) with ±10A full-scale range and ±2.5% accuracy, improving torque ripple reduction and efficiency. | Use Scenario: Monitoring speaker coil current in Class-D audio amplifiers to prevent thermal damage during clipping events. IC Role / Device Role / Timing Role: Fast-response current monitor feeding OCD output directly to amplifier shutdown logic. Use Value: 1µs OCD response prevents voice coil burnout during sustained over-current, eliminating need for discrete comparators and timers. |
| Automotive Systems | Load Detection and Management |
Use Scenario: Battery current monitoring in 12V/48V dual-battery architectures for start-stop and regenerative braking energy accounting. IC Role / Device Role / Timing Role: High-accuracy, isolated current sensor interfacing to vehicle body control module (BCM) via ratiometric analog output. Use Value: ±2.5% total error over –40°C to +125°C ensures SOC estimation fidelity without temperature compensation algorithms. | Use Scenario: Detecting abnormal current draw in lighting modules (LED headlamps, DRLs) to trigger diagnostic trouble codes (DTCs). IC Role / Device Role / Timing Role: Low-offset Hall sensor with programmable OCD threshold detecting >10A faults in 24V LED driver rails. Use Value: Eliminates fuse-based protection delays; enables sub-millisecond fault logging for OBD-II compliance and predictive maintenance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar linear Hall-effect current sensor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ACS724LLCTR-10AU-T | SOIC-8 package (5.0mm × 6.0mm), higher 1.2mΩ conductor resistance, ±1.5% typical accuracy at 25°C only. | Lacks AEC-Q100 Grade 1 rating; not qualified for under-hood automotive use above 105°C ambient. | Select only for non-automotive industrial applications where board space and extended temperature range are secondary. |
| TLE4971-25S4 | PG-DSO-16 package, 25A range, 40mV/A sensitivity, integrated digital SPI interface instead of analog VOUT. | Requires MCU with SPI peripheral and firmware support; no direct analog replacement for existing ADC-based designs. | Choose when digital diagnostics, multi-sensor daisy-chaining, or enhanced fault reporting (e.g., over-temperature) are required. |
Compared with ACS724LLCTR-10AU-T and TLE4971-25S4, the MCQ1823GQTE-310BRNAEC-P offers superior thermal robustness (AEC-Q100 Grade 1), smallest footprint (3mm×3mm), lowest conductor loss (0.6mΩ), and plug-and-play analog integration-making it optimal for space-constrained, high-reliability automotive current sensing.
Availability
MCQ1823GQTE-310BRNAEC-P is available at Aetrix Electronics and suitable for motor control, automotive battery management, and industrial power supply applications requiring stable component supply, AEC-Q100 compliance, and ultra-compact current sensing solutions.
Supply support for MCQ1823GQTE-310BRNAEC-P 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
Monolithic Power Systems (MPS) is a fabless semiconductor company specializing in high-performance power management ICs, with design centers in the US, China, and Taiwan, and global manufacturing partnerships.
The MCQ1823 product line targets automotive and industrial current sensing applications, delivering integrated Hall-effect solutions that replace bulky shunt-based systems with high-accuracy, isolated, and space-saving alternatives.
FAQ
What is the maximum continuous current the MCQ1823GQTE-310BRNAEC-P can measure?
The device is rated for ±10A continuous bidirectional current with guaranteed ±2.5% total output error across –40°C to +125°C. Peak currents beyond ±10A may be sensed but fall outside specified accuracy; absolute maximum primary current is limited by thermal derating and PCB trace capability-not by the IC itself.
How is the over-current detection threshold configured for this part?
The /OCD pin is open-drain and requires an external pull-up resistor (10kΩ–500kΩ) to VCC. The OCD threshold is set to ±100% of IPMAX (i.e., ±10A) by default; selecting RPULLUP = 100kΩ yields ~100% threshold, while lower values increase threshold percentage up to 240% per datasheet Figure 12.
Does the MCQ1823GQTE-310BRNAEC-P require external calibration?
No. The device is factory-trimmed for zero-current offset and sensitivity, achieving ±2.5% total output error without end-of-line calibration. No external components or software compensation are needed for specified operating conditions (–40°C to +125°C, 3.0–3.6V VCC).
Can the MCQ1823GQTE-310BRNAEC-P be used with a 5V supply?
No. The "3" in the part number suffix indicates 3.3V supply option. This variant is specified only for 3.0–3.6V operation. For 5V supply, use MCQ1823GQTE-510BRNAEC (±10A, 200mV/A, 5V option), which has different electrical characteristics and pin compatibility.
Is isolation provided between primary current path and signal outputs?
Yes. The device provides basic galvanic isolation per IEC62368-1 with VIOWM = 100Vpk/dc. The primary conductor (IP+/IP−) is internally isolated from the signal side (VOUT, /OCD, GND, VCC), enabling safe measurement of high-side or low-side currents without optocouplers or isolated amplifiers.
What is the recommended PCB layout for minimizing noise on VOUT?
Route VOUT with a dedicated analog trace ≥0.25mm wide, avoid crossing switching node traces, place 0.1µF ceramic decoupling capacitor between VCC and GND within 2mm of pins 12 and 5, and use solid ground plane beneath the IC. Keep /OCD routing short and away from sensitive analog nodes to prevent coupling.
Does the MCQ1823GQTE-310BRNAEC-P support unidirectional current sensing?
No. The "B" in the part number suffix denotes bidirectional operation. Unidirectional variants (e.g., MCQ1823GQTE-310URNAEC) exist but have different zero-current output voltage (0.1×VCC) and are not interchangeable without circuit redesign.
MCQ1823GQTE-310BRNAEC-P Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- 12-PowerWFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- For Measuring:
- AC/DC
- Sensor Type:
- Hall Effect
- Current - Sensing:
- 10A
- Number of Channels:
- 1
- Output:
- Ratiometric, Voltage
- Sensitivity:
- 132mV/A
- Frequency:
- 120kHz
- Linearity:
- ±0.5%
- Accuracy:
- ±2.5%
- Voltage - Supply:
- 3V ~ 3.6V
- Response Time:
- 4µs
- Current - Supply (Max):
- 12mA
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Polarization:
- Bidirectional
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 12-TQFN (3x3)
MCQ1823GQTE-310BRNAEC-P FAQ
1.How can I place an order for MCQ1823GQTE-310BRNAEC-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MCQ1823GQTE-310BRNAEC-P 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 MCQ1823GQTE-310BRNAEC-P reliable?
The price and inventory of MCQ1823GQTE-310BRNAEC-P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MCQ1823GQTE-310BRNAEC-P is usually 5 days.
3.What payment methods are accepted for MCQ1823GQTE-310BRNAEC-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCQ1823GQTE-310BRNAEC-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCQ1823GQTE-310BRNAEC-P?
MCQ1823GQTE-310BRNAEC-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCQ1823GQTE-310BRNAEC-P 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 MCQ1823GQTE-310BRNAEC-P?
For technical support, including MCQ1823GQTE-310BRNAEC-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCQ1823GQTE-310BRNAEC-P requirements.
6.How does Aetrix verify that MCQ1823GQTE-310BRNAEC-P is sourced from the original manufacturer or authorized distributors?
All MCQ1823GQTE-310BRNAEC-P 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 MCQ1823GQTE-310BRNAEC-P meets industry standards.
7.What is the process for return or replacement of MCQ1823GQTE-310BRNAEC-P?
All MCQ1823GQTE-310BRNAEC-P units undergo pre-shipment inspection (PSI). If there is an issue with MCQ1823GQTE-310BRNAEC-P, 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 MCQ1823GQTE-310BRNAEC-P part is unused and in its original packaging.
Return procedure for MCQ1823GQTE-310BRNAEC-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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