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Monolithic Power Systems Inc. MCQ1823GQTE-505BRNAEC-P
- Part No.:
- MCQ1823GQTE-505BRNAEC-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- Current Sensors
- Package:
- 12-PowerWFQFN
- Datasheet:
-
MCQ1823GQTE-505BRNAEC-P.pdf
- Description:
- AUTOMOTIVE-GRADE, LINEAR HALL-EF
- Quantity:
- Payment:
- Shipping:
Inventory:3,340
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Product details
Overview
MCQ1823GQTE-505BRNAEC from Monolithic Power Systems is an automotive-grade linear Hall-effect current sensor IC with integrated over-current detection (OCD), designed for bidirectional ±5A DC/AC current sensing in high-reliability power paths. It features 400 mV/A sensitivity, 0.6 mΩ internal conductor resistance, ±2.5% total output error over temperature, and AEC-Q100 Grade 1 qualification for operation from −40°C to +125°C junction temperature.
For engineers reviewing the MCQ1823GQTE-505BRNAEC datasheet, MCQ1823GQTE-505BRNAEC pinout, MCQ1823GQTE-505BRNAEC application, or MCQ1823GQTE-505BRNAEC equivalent, this device supports precise current monitoring in motor control, automotive battery management, and over-current fault protection where space-constrained TQFN-12 packaging and fast 1 µs OCD response are critical.
Technical Context
The MCQ1823GQTE-505BRNAEC uses a differential Hall array to reject homogeneous and gradient stray magnetic fields, enabling stable operation in electrically noisy environments. Its spinning current technique minimizes offset drift, while factory trimming ensures ±2.5% total accuracy across −40°C to +125°C.
It operates from a 5V single supply (4.5–5.5 V), delivers ratiometric analog output proportional to primary current, and integrates an open-drain /OCD output with user-configurable threshold (±100% of IPMAX) and 1 µs response time-critical for real-time fault shutdown in automotive and industrial inverters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 5 V nominal (4.5–5.5 V range); enables direct compatibility with standard 5V microcontroller I/O and ADC reference rails. |
| Current Range | ±5 A bidirectional; supports full-scale sensing of low-current control loops in audio amplifiers or gate drivers without external shunt scaling. |
| Sensitivity | 400 mV/A; yields 2 V full-scale output swing (±5 A × 400 mV/A), simplifying interface with 3.3 V or 5 V ADCs without gain stages. |
| Total Output Error | ±2.5% over −40°C to +125°C; guarantees measurement fidelity in under-hood automotive environments without calibration per unit. |
| OCD Response Time | 1 µs; enables sub-microsecond fault detection for IGBT/MOSFET short-circuit protection in motor drives and SMPS. |
| Bandwidth | 120 kHz; supports accurate current waveform capture for PWM-based systems up to 20 kHz switching frequencies with >5× margin. |
| Conductor Resistance | 0.6 mΩ; limits power loss to <15 mW at 5 A, eliminating need for heatsinking in compact PCB layouts. |
Pinout & Package
TQFN-12 (3 mm × 3 mm, 0.5 mm pitch) package with exposed thermal pad; ultra-small footprint reduces board area by >60% vs. SOIC-8 current sensors while maintaining 100 VPK basic isolation per IEC62368-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 IP+ | Primary current input (+) | Fused internal high-side current path; connects directly to power rail being monitored-no external shunt required. |
| 3, 4 IP− | Primary current return (−) | Fused internal low-side return; completes current loop through integrated conductor with 0.6 mΩ resistance. |
| 5 GND | Signal ground reference | Common reference for VOUT and /OCD; must be connected to low-impedance system ground plane to maintain noise immunity. |
| 6 /OCD | Open-drain over-current flag | Asserts low within 1 µs when |IP| exceeds ±5 A; requires external pull-up (10–500 kΩ) to VCC for custom threshold configuration. |
| 7–10 NC | No connect | Unbonded die pads; must remain unconnected and unrouted to avoid parasitic coupling or mechanical stress. |
| 11 VOUT | Analog output voltage | Ratiometric output centered at VCC/2 (2.5 V at 5 V supply); directly interfaces with SAR or sigma-delta ADCs without level-shifting. |
| 12 VCC | Power supply input | 5 V supply input; requires 0.1–1 µF ceramic bypass capacitor to GND placed adjacent to pin for high-frequency noise suppression. |
Key Features
| Feature | Design Value |
|---|---|
| Differential Hall sensing | Rejects external magnetic field gradients-enables reliable operation near motors, transformers, or adjacent current-carrying traces. |
| Factory-trimmed accuracy | Eliminates post-manufacturing calibration; ±2.5% total error includes gain, offset, linearity, and tempco over full operating range. |
| Fast OCD with user threshold | 1 µs response + adjustable trip point (via RPULLUP) allows system-level fault coordination without external comparators or timers. |
| AEC-Q100 Grade 1 qualification | Validated for automotive applications with guaranteed operation from −40°C to +125°C TJ and robust ESD tolerance (±4 kV HBM). |
| Ultra-low conductor resistance | 0.6 mΩ conduction path minimizes self-heating (<15 mW at 5 A) and avoids derating in thermally constrained modules. |
Applications
| Motor Control | Audio Driver Current Control |
|---|---|
Use Scenario: Real-time phase current feedback in 3-phase BLDC motor inverters for field-oriented control (FOC). IC Role / Device Role / Timing Role: Primary current sensing element providing isolated, low-latency analog feedback to MCU ADC with 120 kHz bandwidth. Use Value: Enables precise torque regulation and stall detection using ±5 A full-scale range matched to gate driver output capability. |
Use Scenario: Monitoring output stage current in Class-D audio amplifiers to prevent clipping-induced speaker damage. IC Role / Device Role / Timing Role: Bidirectional current monitor on amplifier output rail, feeding fast OCD signal to mute logic during over-current events. Use Value: 1 µs OCD response prevents thermal runaway before amplifier protection circuitry can react, preserving speaker integrity. |
| Automotive Battery Management | Switch-Mode Power Supply Protection |
Use Scenario: In-line current measurement for 12 V battery feed in ADAS ECUs requiring AEC-Q100 compliance and space efficiency. IC Role / Device Role / Timing Role: High-accuracy, isolated current sensor replacing shunt+op-amp solutions in compact junction box designs. Use Value: TQFN-12 footprint saves >30 mm² vs. SOIC-8 alternatives while maintaining ±2.5% accuracy across vehicle lifetime temperature extremes. |
Use Scenario: Secondary-side current monitoring in isolated DC-DC converters for over-load and short-circuit protection. IC Role / Device Role / Timing Role: Fast-response current sensor feeding OCD signal directly to PWM controller fault pin for cycle-by-cycle shutdown. Use Value: 1 µs propagation delay enables immediate MOSFET turn-off before energy dissipation exceeds safe SOA limits. |
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 |
|---|---|---|---|
| ACS712ELCTR-05B-T | 5 V supply, ±5 A range, 185 mV/A sensitivity, no integrated OCD, SOIC-8 package (8.6 mm × 6.2 mm). | Lacks fast OCD output; requires external comparator and timer for fault response >10 µs-unsuitable for sub-µs protection. | Select only if OCD is implemented externally and board space permits larger SOIC-8 footprint. |
| TLE4971-5U | 5 V supply, ±5 A range, 300 mV/A sensitivity, integrated OCD (1.5 µs response), PG-DSO-16 package (10 mm × 6.5 mm). | Slower OCD response (1.5 µs vs. 1 µs); larger package increases layout area by 2.2× vs. TQFN-12. | Prefer when higher ESD rating (±8 kV HBM) or extended diagnostic features (e.g., supply monitoring) are required. |
Compared with ACS712ELCTR-05B-T and TLE4971-5U, the MCQ1823GQTE-505BRNAEC delivers the fastest OCD response in the smallest footprint while maintaining AEC-Q100 Grade 1 compliance-making it optimal for space- and timing-critical automotive and industrial power stages.
Availability
MCQ1823GQTE-505BRNAEC is available at Aetrix Electronics and suitable for motor control, automotive battery management, and switch-mode power supply protection requiring stable component supply, AEC-Q100 qualification, and ultra-compact TQFN-12 packaging.
Supply support for MCQ1823GQTE-505BRNAEC 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 focus on efficiency, integration, and reliability for automotive, industrial, and computing markets.
The MCQ1823 product line delivers monolithic Hall-effect current sensors optimized for AEC-Q100-compliant automotive subsystems and space-constrained industrial power conversion-emphasizing fast fault response, magnetic immunity, and zero-shunt architecture.
FAQ
What is the maximum continuous primary current the MCQ1823GQTE-505BRNAEC can measure?
The device is rated for ±5 A continuous bidirectional current. Its 0.6 mΩ internal conductor sustains this current with <15 mW power dissipation at 25°C ambient, and thermal performance remains within specification up to +125°C junction temperature per AEC-Q100 Grade 1 requirements.
How is the over-current detection threshold configured?
The /OCD pin is open-drain and requires an external pull-up resistor (10–500 kΩ) to VCC. Threshold is set to ±100% of IPMAX (±5 A) by default; varying RPULLUP adjusts trip point between 50% and 240% of IPMAX per datasheet Figure 12 and Table 1.
Does the MCQ1823GQTE-505BRNAEC require external calibration?
No. The device is factory-trimmed for sensitivity, offset, and linearity. Total output error remains within ±2.5% across −40°C to +125°C without end-of-line calibration-verified per AEC-Q100 stress testing and lifetime drift characterization (±1% max long-term drift).
Can the MCQ1823GQTE-505BRNAEC be used with a 3.3 V microcontroller ADC?
Yes. With 5 V supply, VOUT is ratiometric and centered at 2.5 V (VCC/2), delivering ±2 V swing for ±5 A. This 4 V peak-to-peak range fully utilizes a 3.3 V ADC's input range when referenced to 3.3 V, provided proper level-shifting or attenuation is applied per system noise budget.
What isolation rating does the MCQ1823GQTE-505BRNAEC provide?
It provides basic isolation per IEC62368-1 with a maximum working voltage (VIOWM) of 100 VPK or 100 VDC. This rating applies to the internal galvanic barrier between primary current path and secondary signal circuitry-not to creepage/clearance on PCB.
Is the TQFN-12 package lead-free and RoHS compliant?
Yes. All MCQ1823 variants are lead-free, halogen-free, and fully compliant with the EU RoHS directive. The package uses standard SnAgCu solder finish and meets JEDEC MSL Level 1 moisture sensitivity requirements.
How does the differential Hall array improve noise immunity?
The dual Hall transducers sense magnetic field difference between two spatially separated points, canceling uniform and linear-gradient external fields (e.g., from nearby inductors or busbars). This eliminates need for magnetic shielding in dense power modules per datasheet Section 1.2 and Figure 2.
MCQ1823GQTE-505BRNAEC-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:
- 5A
- Number of Channels:
- 1
- Output:
- Ratiometric, Voltage
- Sensitivity:
- 400mV/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-505BRNAEC-P FAQ
1.How can I place an order for MCQ1823GQTE-505BRNAEC-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MCQ1823GQTE-505BRNAEC-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-505BRNAEC-P reliable?
The price and inventory of MCQ1823GQTE-505BRNAEC-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-505BRNAEC-P is usually 5 days.
3.What payment methods are accepted for MCQ1823GQTE-505BRNAEC-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCQ1823GQTE-505BRNAEC-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCQ1823GQTE-505BRNAEC-P?
MCQ1823GQTE-505BRNAEC-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCQ1823GQTE-505BRNAEC-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-505BRNAEC-P?
For technical support, including MCQ1823GQTE-505BRNAEC-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCQ1823GQTE-505BRNAEC-P requirements.
6.How does Aetrix verify that MCQ1823GQTE-505BRNAEC-P is sourced from the original manufacturer or authorized distributors?
All MCQ1823GQTE-505BRNAEC-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-505BRNAEC-P meets industry standards.
7.What is the process for return or replacement of MCQ1823GQTE-505BRNAEC-P?
All MCQ1823GQTE-505BRNAEC-P units undergo pre-shipment inspection (PSI). If there is an issue with MCQ1823GQTE-505BRNAEC-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-505BRNAEC-P part is unused and in its original packaging.
Return procedure for MCQ1823GQTE-505BRNAEC-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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