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Monolithic Power Systems Inc. MCQ1823GQTE-320BRNAEC-P
- Part No.:
- MCQ1823GQTE-320BRNAEC-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- Current Sensors
- Package:
- 12-PowerWFQFN
- Datasheet:
-
MCQ1823GQTE-320BRNAEC-P.pdf
- Description:
- AUTOMOTIVE-GRADE, LINEAR HALL-EF
- Quantity:
- Payment:
- Shipping:
Inventory:3,924
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Product details
Overview
MCQ1823GQTE-320BRNAEC 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. It delivers ±20A sensing range, 66 mV/A sensitivity, ±2.5% total output error, and 120kHz bandwidth, enabling precise real-time current monitoring in high-density motor control and powertrain subsystems.
For engineers reviewing the MCQ1823GQTE-320BRNAEC datasheet, MCQ1823GQTE-320BRNAEC pinout, MCQ1823GQTE-320BRNAEC application, or MCQ1823GQTE-320BRNAEC equivalent, this device supports AEC-Q100 Grade 1 operation, ratiometric/absolute VOUT selection, and field-immune differential Hall sensing-critical for functional safety–compliant traction inverters, battery management systems, and DC-DC converter current feedback loops.
Technical Context
The MCQ1823GQTE-320BRNAEC uses a differential Hall array to reject homogeneous and gradient stray magnetic fields, ensuring stable operation in noisy automotive environments. Its 0.6mΩ internal conductor enables low-loss, high-fidelity current sampling without external shunts.
It integrates a fast OCD circuit with 1µs response time and user-configurable threshold (via external pull-up resistor), while maintaining analog output linearity across -40°C to +125°C junction temperature. The spinning current technique minimizes offset drift, supporting long-term accuracy in safety-critical applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Current Range | ±20A bidirectional-supports full-scale measurement of motor phase currents and battery charge/discharge paths. |
| Sensitivity | 66 mV/A at TJ = 25°C-enables direct ADC interfacing with minimal gain staging in 3.3V systems. |
| Total Output Error | ±2.5% over -40°C to +125°C-meets ASIL-B functional safety requirements for current feedback in EPS and ADAS power stages. |
| Bandwidth | 120kHz-captures fast transients in PWM-driven inverters and switch-mode power supplies. |
| OCD Response Time | 1µs-provides hardware-level fault reaction faster than microcontroller-based protection, critical for IGBT/MOSFET short-circuit hardening. |
| Conductor Resistance | 0.6mΩ-limits power loss to ≤240mW at 20A, reducing thermal stress and PCB copper area requirements. |
| Supply Voltage | 3.0V–3.6V-compatible with standard automotive 3.3V domain rails and immune to brown-out during cold-crank conditions. |
Pinout & Package
TQFN-12 (3mm × 3mm, 0.5mm pitch) package with wettable flanks, MSL Level 1, AEC-Q100 qualified for automotive under-hood use.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 IP+ | Primary current input (+) | Fused high-current terminal; connects to power rail side of load-carries full sensed current with minimal voltage drop. |
| 3, 4 IP- | Primary current return (-) | Fused return path; completes current loop through integrated conductor-enables galvanic isolation between primary and secondary sides. |
| 5 GND | Signal ground reference | Low-impedance return for Hall sensors and analog output-must be connected to clean analog ground plane to minimize noise coupling. |
| 6 /OCD | Open-drain over-current flag | Active-low fault signal; requires external pull-up (10kΩ–500kΩ) to set OCD threshold between 50%–240% of ±20A rating. |
| 7–10 NC | No connect | Internally unconnected pins-must remain floating; no routing or thermal vias required. |
| 11 VOUT | Analog current-proportional output | Ratiometric or absolute mode; outputs 1.65V (±0.33V) at zero current for 3.3V supply-directly interfaces with 12-bit SAR ADCs. |
| 12 VCC | Power supply input | 3.3V supply input; requires 0.1µF–1µF ceramic bypass capacitor to GND for high-frequency noise suppression. |
Key Features
| Feature | Design Value |
|---|---|
| Differential Hall sensing | Rejects external magnetic interference up to gradient fields-eliminates need for magnetic shielding in crowded ECU layouts. |
| Factory-trimmed accuracy | ±2.5% total error over full temp range-reduces calibration overhead in production test and eliminates post-solder trim components. |
| Ultra-small footprint | 3mm×3mm TQFN-12-saves >60% board area vs. legacy SOIC-8 current sensors, enabling placement directly on high-current traces. |
| Fast OCD with programmable threshold | 1µs response + 50%–240% IPMAX adjustability-supports flexible fault grading (e.g., warning vs. shutdown) in multi-level protection schemes. |
| AEC-Q100 Grade 1 qualification | -40°C to +125°C operation-validated for engine bay, transmission control, and battery disconnect unit deployment without derating. |
Applications
| Motor Control | Audio Driver Current Control |
|---|---|
Use Scenario: Real-time phase current sensing in 48V mild-hybrid traction inverters. IC Role / Device Role / Timing Role: Primary current feedback element in closed-loop FOC (Field-Oriented Control) algorithm, operating at 10kHz PWM frequency. Use Value: 120kHz bandwidth captures current ripple harmonics; ±2.5% error ensures torque accuracy within ±1.2% across temperature-meeting ISO 26262 ASIL-B diagnostic coverage targets. |
Use Scenario: Speaker coil current monitoring in automotive active noise cancellation (ANC) amplifiers. IC Role / Device Role / Timing Role: High-bandwidth analog current monitor feeding DSP-based distortion compensation loop. Use Value: 1µs OCD response prevents voice-coil burnout during clipping events; 0.6mΩ conductor avoids audible insertion loss in audio signal path. |
| Automotive Systems | Over-Current Fault Protection |
Use Scenario: Battery pack current monitoring in 12V/48V dual-battery architectures. IC Role / Device Role / Timing Role: Bidirectional current sensor for state-of-charge (SoC) estimation and charge/discharge rate limiting. Use Value: ±20A range covers typical starter-generator peak loads; ratiometric VOUT maintains accuracy despite vehicle battery voltage sag from 14.5V to 9V. |
Use Scenario: Hardware-level short-circuit protection in high-side power distribution modules (PDMs). IC Role / Device Role / Timing Role: Fast OCD trigger for immediate gate shutdown of protected MOSFETs. Use Value: 1µs response time enables <100ns fault-to-shutdown latency when paired with fast logic gates-preventing destructive energy dissipation in power switches. |
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-20AB-T | SOIC-8 package (5.1mm×6.2mm); ±20A range; 100mV/A sensitivity; no integrated OCD output. | Lacks dedicated /OCD pin-requires external comparator for over-current detection, increasing BOM count and layout complexity. | Select when board space permits larger package and OCD can be implemented externally with timing budget >5µs. |
| TLE4971-20S4 | PG-DSO-16 package; ±20A range; 60mV/A sensitivity; integrated digital SPI interface and diagnostics. | Provides digital output and built-in CRC/error reporting-suited for AUTOSAR-compliant ECUs but adds MCU firmware dependency. | Select when system requires diagnostic logging, configurable alerts, or integration with CAN FD gateway nodes. |
Compared with ACS724LLCTR-20AB-T and TLE4971-20S4, the MCQ1823GQTE-320BRNAEC offers the smallest footprint, fastest OCD response, and analog simplicity-ideal for space-constrained, hardware-triggered protection in high-reliability automotive power stages where deterministic latency is non-negotiable.
Availability
MCQ1823GQTE-320BRNAEC is available at Aetrix Electronics and suitable for motor control, battery management, and over-current protection applications requiring stable component supply across automotive production lifecycles.
Supply support for MCQ1823GQTE-320BRNAEC 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 delivers ultra-compact, AEC-Q100-qualified Hall-effect current sensors optimized for functional safety–enabled electric powertrains, replacing bulky shunt-based solutions with integrated, field-immune analog sensing.
FAQ
What is the maximum continuous current the MCQ1823GQTE-320BRNAEC can measure?
The device is rated for ±20A bidirectional continuous current sensing. Its 0.6mΩ internal conductor sustains this current with ≤240mW power dissipation at 20A, and thermal design must ensure junction temperature remains ≤125°C under worst-case ambient and airflow conditions per the datasheet's derating curves.
How is the over-current detection threshold configured?
The /OCD pin is open-drain and requires an external pull-up resistor (10kΩ–500kΩ) to VCC. Threshold is set between 50% and 240% of ±20A by selecting RPULLUP per the datasheet's lookup table-no programming or configuration register is involved, enabling hardware-only fault response.
Does the MCQ1823GQTE-320BRNAEC require external calibration?
No external calibration is needed. Factory trimming achieves ±2.5% total output error across -40°C to +125°C, and the spinning current technique maintains stable offset. System-level calibration is optional but not required for ASIL-B–compliant designs per ISO 26262 Annex D guidelines.
Can the VOUT output operate in both ratiometric and absolute modes?
Yes-the part number suffix determines mode: "R" indicates ratiometric (VOUT proportional to VCC), "A" indicates absolute (fixed 2.5V or 1.65V zero-current output). MCQ1823GQTE-320BRNAEC uses "R", so VOUT(Q) = VCC/2 = 1.65V at zero current, scaling linearly with sensed current.
Is magnetic shielding required for reliable operation?
No magnetic shielding is required. The differential Hall array inherently cancels homogeneous and gradient stray fields-verified per IEC 61000-4-8 testing. Layout best practices (e.g., avoiding nearby current loops or magnets within 10mm) are sufficient for automotive ECU deployments.
What is the isolation rating of the MCQ1823GQTE-320BRNAEC?
The device provides basic isolation per IEC 62368-1 with a maximum working voltage (VIOWM) of 100 VPK or VDC between primary (IP+/IP-) and secondary (VOUT/GND/VCC) sides-suitable for 12V/48V automotive systems but not for 400V+ HV battery monitoring without additional barrier reinforcement.
How does the MCQ1823GQTE-320BRNAEC handle supply voltage transients?
It features a 2.0V–3.0V UVLO with 500mV hysteresis, ensuring clean startup and shutdown during cold-crank (6.5V→2.5V) or load-dump events. Operation is guaranteed from 3.0V to 3.6V, and ICC remains stable at 9–12mA across this range-minimizing interaction with upstream LDOs or DC-DC converters.
MCQ1823GQTE-320BRNAEC-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:
- 20A
- Number of Channels:
- 1
- Output:
- Ratiometric, Voltage
- Sensitivity:
- 66mV/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-320BRNAEC-P FAQ
1.How can I place an order for MCQ1823GQTE-320BRNAEC-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MCQ1823GQTE-320BRNAEC-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-320BRNAEC-P reliable?
The price and inventory of MCQ1823GQTE-320BRNAEC-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-320BRNAEC-P is usually 5 days.
3.What payment methods are accepted for MCQ1823GQTE-320BRNAEC-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCQ1823GQTE-320BRNAEC-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCQ1823GQTE-320BRNAEC-P?
MCQ1823GQTE-320BRNAEC-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCQ1823GQTE-320BRNAEC-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-320BRNAEC-P?
For technical support, including MCQ1823GQTE-320BRNAEC-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCQ1823GQTE-320BRNAEC-P requirements.
6.How does Aetrix verify that MCQ1823GQTE-320BRNAEC-P is sourced from the original manufacturer or authorized distributors?
All MCQ1823GQTE-320BRNAEC-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-320BRNAEC-P meets industry standards.
7.What is the process for return or replacement of MCQ1823GQTE-320BRNAEC-P?
All MCQ1823GQTE-320BRNAEC-P units undergo pre-shipment inspection (PSI). If there is an issue with MCQ1823GQTE-320BRNAEC-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-320BRNAEC-P part is unused and in its original packaging.
Return procedure for MCQ1823GQTE-320BRNAEC-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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