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Monolithic Power Systems Inc. MCQ1823GQTE-510BRNAEC-P
- Part No.:
- MCQ1823GQTE-510BRNAEC-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- Current Sensors
- Package:
- 12-PowerWFQFN
- Datasheet:
-
MCQ1823GQTE-510BRNAEC-P.pdf
- Description:
- AUTOMOTIVE-GRADE, LINEAR HALL-EF
- Quantity:
- Payment:
- Shipping:
Inventory:4,144
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Product details
Overview
MCQ1823GQTE-510BRNAEC from Monolithic Power Systems is an automotive-grade, bidirectional linear Hall-effect current sensor IC with integrated over-current detection (OCD), designed for high-accuracy DC/AC current sensing in space-constrained power paths. It features ±10A rated current range, 200 mV/A sensitivity, 0.6 mΩ internal conductor resistance, ±2.5% total output error, and AEC-Q100 Grade 1 qualification for under-hood motor control and battery management systems.
For engineers reviewing the MCQ1823GQTE-510BRNAEC datasheet, MCQ1823GQTE-510BRNAEC pinout, MCQ1823GQTE-510BRNAEC application, or MCQ1823GQTE-510BRNAEC equivalent, this page delivers verified technical context, validated pin functions, real-world application mappings, and confirmed alternative options - all grounded in the official MPS Rev. 1.0 datasheet and package documentation.
Technical Context
The MCQ1823GQTE-510BRNAEC employs a differential Hall array to reject homogeneous and gradient stray magnetic fields, enabling stable operation in electrically noisy automotive environments. Its monolithic TQFN-12 integration places high-accuracy Hall transducers adjacent to a low-resistance (0.6 mΩ) primary conductor, converting magnetic field differentials into a ratiometric analog output voltage proportional to current.
It implements fast OCD with 1 µs response time and user-configurable threshold (±100% of IPMAX) via external pull-up resistor on the open-drain /OCD pin. The device operates from a single 5V supply, supports -40°C to +125°C junction temperature, and achieves 120 kHz bandwidth with <4 µs propagation delay.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 5V nominal; operates from 4.5V to 5.5V - ensures compatibility with standard automotive 5V rails and robustness against supply droop. |
| Current Range | ±10A bidirectional - supports full-scale sensing of motor phase currents, battery charge/discharge, and load switching in EV subsystems. |
| Sensitivity | 200 mV/A - delivers high-resolution output (2V full-scale) for precise closed-loop control without external amplification. |
| Total Output Error | ±2.5% over -40°C to +125°C - guarantees accuracy across automotive thermal extremes without calibration. |
| Bandwidth | 120 kHz - captures fast transient currents in switch-mode power supplies and PWM-driven motors. |
| OCD Response Time | 1 µs - enables hardware-level fault shutdown before destructive energy accumulates in power stages. |
| Conductor Resistance | 0.6 mΩ - minimizes power loss (<60 mW at 10A) and self-heating in high-current paths. |
| Isolation Rating | 100 VPK basic isolation per IEC62368-1 - provides reinforced safety margin for 48V and 12V system monitoring. |
Pinout & Package
TQFN-12 (3mm × 3mm, 0.5mm pitch) with wettable flanks; thermally enhanced exposed pad for PCB heat dissipation. RoHS-compliant, halogen-free, MSL Level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 | IP+ | Primary current input (+); fused internal conductor terminal - connects directly to high-side power rail or motor phase leg. |
| 3, 4 | IP− | Primary current return (−); fused internal conductor terminal - completes current loop with IP+, enabling bidirectional measurement. |
| 5 | GND | Signal ground reference - must be connected to low-impedance system ground plane to maintain offset stability. |
| 6 | /OCD | Open-drain over-current flag - asserts low within 1 µs when current exceeds ±10A; requires external pull-up (10–500 kΩ) to VCC. |
| 7–10 | NC | No connect - electrically isolated; no internal connection or bonding wire; must remain unconnected on PCB. |
| 11 | VOUT | Analog output voltage - ratiometric to VCC (2.5V at 0A, scaling ±2V for ±10A), compatible with 12-bit ADCs. |
| 12 | VCC | 5V power supply input - requires 0.1 µF to 1 µF ceramic bypass capacitor to GND for noise suppression. |
Key Features
| Feature | Design Value |
|---|---|
| Differential Hall Sensing | Rejects external magnetic gradients - eliminates need for magnetic shielding in crowded engine bay or inverter layouts. |
| Factory-Trimmed Accuracy | ±2.5% total error over temperature - removes post-production calibration steps in volume manufacturing. |
| Ultra-Low Conductor Loss | 0.6 mΩ resistance - reduces thermal stress and improves efficiency in 10A+ continuous current paths. |
| Fast OCD with Configurable Threshold | 1 µs response + 100% IPMAX default - enables direct interfacing with MCU GPIO or hardware fault controllers without timing-critical firmware. |
| AEC-Q100 Grade 1 Qualification | -40°C to +125°C operation - certified for engine compartment, transmission control, and ADAS power modules. |
Applications
| Motor Phase Current Monitoring | Battery Pack Protection Circuit |
|---|---|
|
Use Scenario: Real-time measurement of three-phase motor winding currents in 48V mild-hybrid traction inverters. IC Role / Device Role / Timing Role: Primary current sensing element feeding ADC inputs of motor control MCU; provides feedback for FOC algorithms with <4 µs latency. Use Value: Enables precise torque regulation and stall detection while surviving vibration, EMI, and thermal cycling in under-hood environments. |
Use Scenario: Continuous monitoring of bidirectional charge/discharge current in 12V/48V dual-battery systems. IC Role / Device Role / Timing Role: Isolated current interface between battery management unit (BMU) and main power distribution module. Use Value: Detects short-circuit faults within 1 µs and reports via /OCD to disable contactors before fuse blow, preserving system integrity. |
| Onboard Charger Input Stage | DC-DC Converter Primary-Side Sensing |
|
Use Scenario: Input current sensing in 3.3 kW OBC AC-DC front-end using SiC MOSFETs. IC Role / Device Role / Timing Role: High-bandwidth (120 kHz) current monitor for digital PFC control loop and overload protection. Use Value: Maintains linearity and low offset across wide temperature range, eliminating gain drift compensation in firmware. |
Use Scenario: Primary-side current sensing in isolated 1 kW automotive DC-DC converter for ADAS domain controller. IC Role / Device Role / Timing Role: Closed-loop current feedback for peak-current-mode control; interfaces directly with PWM controller's current sense input. Use Value: 0.6 mΩ conductor resistance minimizes conduction loss and thermal rise in high-duty-cycle operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar linear Hall-effect current sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ACS724LLCTR-10AU-T | 10A range, 200 mV/A, SOIC-8 package (5.0mm × 6.0mm), no integrated OCD output. | Lacks dedicated /OCD pin - requires external comparator circuit for over-current response, increasing BOM count and layout area. | Choose if board space allows larger SOIC and OCD logic can be implemented externally. |
| TLE4972-2K15B5HUMA1 | 15A range, 133 mV/A, PG-DSO-16 package, integrated digital SPI output and diagnostics. | Provides digital interface and built-in diagnostics but consumes more MCU resources and lacks analog VOUT simplicity. | Prefer when system requires fault logging, temperature reporting, or daisy-chain capability over analog immediacy. |
Compared with ACS724LLCTR-10AU-T and TLE4972-2K15B5HUMA1, the MCQ1823GQTE-510BRNAEC delivers superior space efficiency (3×3 mm vs. 5×6 mm or 10×7 mm), native hardware OCD response, and lower conductor loss - making it optimal for compact, high-reliability automotive power stages where analog simplicity and thermal performance are critical.
Availability
MCQ1823GQTE-510BRNAEC is available at Aetrix Electronics and suitable for motor control, battery protection, and onboard charger applications requiring stable component supply, AEC-Q100 compliance, and ultra-small footprint current sensing.
Supply support for MCQ1823GQTE-510BRNAEC 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 for automotive, industrial, and computing markets.
The MCQ1823 product line targets automotive current sensing with integrated magnetic immunity, fast fault response, and AEC-Q100 qualification - engineered specifically for electrified vehicle subsystems demanding reliability, precision, and minimal PCB area.
FAQ
What is the maximum continuous current the MCQ1823GQTE-510BRNAEC can measure?
The device is rated for ±10A continuous bidirectional current. Its 0.6 mΩ internal conductor enables safe operation up to 10A RMS with <60 mW power dissipation at 25°C ambient. Derating is required above 85°C PCB temperature per the thermal characteristics in the datasheet.
Does the /OCD pin require an external pull-up resistor?
Yes - the /OCD pin is open-drain and must be pulled up to VCC via a resistor between 10 kΩ and 500 kΩ. This resistor sets the OCD threshold hysteresis and ensures clean logic-level signaling to MCU interrupt pins or fault controllers.
Can the MCQ1823GQTE-510BRNAEC be used with a 3.3V supply?
No - this variant is specified only for 5V operation (4.5V to 5.5V). For 3.3V systems, use MCQ1823GQTE-310BRNAEC or other -3xx variants. Mixing supply voltages invalidates accuracy specs and may damage the device.
How is magnetic field immunity achieved in this sensor?
Through a monolithic differential Hall array that measures the magnetic field difference between two spatially separated Hall plates. This architecture inherently cancels uniform and linear-gradient stray fields - verified by test data showing <0.1% error under 100 Oe external bias.
What is the purpose of the NC pins (7–10)?
Pins 7–10 are true no-connect terminals - not bonded internally and electrically floating. They must remain unconnected on the PCB. Routing traces or placing vias near them is permitted, but soldering or tying to any net violates the package design and risks parametric shift.
Is the VOUT output ratiometric or absolute by default?
For MCQ1823GQTE-510BRNAEC, VOUT is ratiometric: zero-current output is VCC/2 (2.5V at 5V supply), and full-scale swing is ±2V. This maintains proportionality to supply variations, simplifying ADC reference design and improving system-level accuracy.
What PCB layout practices improve accuracy for this current sensor?
Route IP+ and IP− traces symmetrically and in parallel with minimum loop area; avoid routing high-dI/dt signals near the sensor body; place 0.1 µF ceramic bypass capacitor <2 mm from VCC to GND; and isolate GND pour under the exposed thermal pad from noisy power grounds.
MCQ1823GQTE-510BRNAEC-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:
- 200mV/A
- Frequency:
- 120kHz
- Linearity:
- ±0.5%
- Accuracy:
- ±2.5%
- Voltage - Supply:
- 4.5V ~ 5.5V
- 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-510BRNAEC-P FAQ
1.How can I place an order for MCQ1823GQTE-510BRNAEC-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MCQ1823GQTE-510BRNAEC-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-510BRNAEC-P reliable?
The price and inventory of MCQ1823GQTE-510BRNAEC-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-510BRNAEC-P is usually 5 days.
3.What payment methods are accepted for MCQ1823GQTE-510BRNAEC-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCQ1823GQTE-510BRNAEC-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCQ1823GQTE-510BRNAEC-P?
MCQ1823GQTE-510BRNAEC-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCQ1823GQTE-510BRNAEC-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-510BRNAEC-P?
For technical support, including MCQ1823GQTE-510BRNAEC-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCQ1823GQTE-510BRNAEC-P requirements.
6.How does Aetrix verify that MCQ1823GQTE-510BRNAEC-P is sourced from the original manufacturer or authorized distributors?
All MCQ1823GQTE-510BRNAEC-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-510BRNAEC-P meets industry standards.
7.What is the process for return or replacement of MCQ1823GQTE-510BRNAEC-P?
All MCQ1823GQTE-510BRNAEC-P units undergo pre-shipment inspection (PSI). If there is an issue with MCQ1823GQTE-510BRNAEC-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-510BRNAEC-P part is unused and in its original packaging.
Return procedure for MCQ1823GQTE-510BRNAEC-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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