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Monolithic Power Systems Inc. MCQ1823GQTE-330BANAEC-P
- Part No.:
- MCQ1823GQTE-330BANAEC-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- Current Sensors
- Package:
- 12-PowerWFQFN
- Datasheet:
-
MCQ1823GQTE-330BANAEC-P.pdf
- Description:
- AUTOMOTIVE-GRADE, LINEAR HALL-EF
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MCQ1823GQTE-330BANAEC-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 ±30A sensing range, 44 mV/A sensitivity, ±2.5% total output error, and 120kHz bandwidth for high-fidelity AC/DC current monitoring in safety-critical systems. Its 0.6mΩ internal conductor resistance minimizes power loss while enabling compact integration near high-current paths.
For engineers reviewing the MCQ1823GQTE-330BANAEC-P datasheet, MCQ1823GQTE-330BANAEC-P pinout, MCQ1823GQTE-330BANAEC-P application, or MCQ1823GQTE-330BANAEC-P equivalent, this device supports precise motor phase current feedback, real-time load fault detection, ratiometric or absolute analog output selection, and programmable OCD thresholds via external pull-up resistor - all within automotive temperature range (−40°C to +125°C).
Technical Context
The MCQ1823 employs a differential Hall array to reject homogeneous and gradient stray magnetic fields, ensuring stable operation in electrically noisy environments like motor drives and battery management systems. Its spinning current technique suppresses offset drift, achieving ±10 mV zero-current output voltage error over −40°C to +125°C.
It integrates fast open-drain /OCD output with 1 µs response time and configurable threshold (100% of IPMAX by default), while maintaining galvanic isolation up to 100 VPK/DC per IEC62368-1. The 3.3V single supply, 12 mA operating current, and 60 µs power-on time support low-latency, energy-efficient system monitoring.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Current Range | ±30A bidirectional - enables full-scale measurement of traction inverter phase currents or DC-link monitoring without external shunt scaling. |
| Sensitivity | 44 mV/A - provides 1.32V full-scale output swing at ±30A, compatible with standard 3.3V ADC reference rails. |
| Total Output Error | ±2.5% - includes gain, offset, linearity, and temperature drift contributions; ensures <±0.75A absolute accuracy across operating temperature. |
| Bandwidth | 120kHz - supports closed-loop control of high-frequency PWM-driven motors and switch-mode power supplies. |
| OCD Response Time | 1 µs - enables sub-microsecond fault detection for IGBT/MOSFET short-circuit protection in inverters. |
| Conductor Resistance | 0.6mΩ - dissipates only 540mW at 30A RMS, minimizing thermal impact on PCB layout and adjacent components. |
| Supply Voltage | 3.0–3.6V - tightly regulated 3.3V rail compatibility avoids need for additional LDOs in automotive domain controllers. |
Pinout & Package
TQFN-12 (3mm × 3mm, 0.5mm pitch, exposed thermal pad), RoHS-compliant, moisture sensitivity level (MSL) 1 - suitable for reflow soldering and high-density automotive PCB assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 IP+ | Primary current input (+) | Fused high-current input terminal; connects directly to power rail or motor phase leg; carries full sensed current. |
| 3, 4 IP− | Primary current return (−) | Fused current return path; completes primary conduction loop; forms low-inductance current path with IP+. |
| 5 GND | Signal ground reference | Common reference for analog output and OCD logic; must be connected to low-impedance ground plane near thermal pad. |
| 6 /OCD | Open-drain over-current flag | Active-low fault signal; requires external pull-up (10kΩ–500kΩ) to VCC to set custom OCD threshold between 50%–240% of IPMAX. |
| 7–10 NC | No connection | Internally unconnected; must remain floating or grounded per layout guidelines to avoid parasitic coupling. |
| 11 VOUT | Analog current-proportional output | Ratiometric or absolute mode selectable at factory; outputs voltage proportional to instantaneous IP (±30A → ±1.32V or 0–1.32V). |
| 12 VCC | 3.3V supply input | Power input requiring 0.1µF–1µF ceramic bypass capacitor to GND; UVLO triggers below 2.5V to prevent erroneous output during brownout. |
Key Features
| Feature | Design Value |
|---|---|
| Differential Hall sensing | Rejects external magnetic interference up to gradient fields - eliminates need for magnetic shielding in EV motor control modules. |
| Factory-trimmed accuracy | ±2.5% total error over temperature - reduces calibration overhead in production test for automotive Tier-1 suppliers. |
| Programmable OCD threshold | Configurable via external RPULLUP resistor - enables one BOM item to serve multiple over-current trip points across vehicle platforms. |
| AEC-Q100 Grade 1 qualification | Validated for −40°C to +125°C junction operation - meets functional safety requirements for ASIL-B relevant subsystems. |
| Ultra-small footprint | 3mm × 3mm TQFN-12 - saves >60% board area vs. legacy SOIC-8 current sensors, critical for space-constrained ADAS ECUs. |
Applications
| Motor Control | Audio Driver Current Control |
|---|---|
Use Scenario: Real-time phase current sampling in 3-phase BLDC motor inverters for field-oriented control (FOC). IC Role / Device Role / Timing Role: Primary current feedback sensor delivering synchronized analog output to MCU ADC with <1µs latency. Use Value: Enables precise torque regulation and stall detection at 20kHz PWM frequencies without external amplification or filtering. |
Use Scenario: Monitoring speaker coil current in Class-D audio amplifiers to prevent thermal damage and clipping distortion. IC Role / Device Role / Timing Role: High-bandwidth current monitor feeding protection logic and dynamic headroom control algorithms. Use Value: Delivers 120kHz response to detect transient overloads before voice coil overheating occurs, improving amplifier reliability. |
| Automotive Systems | Over-Current Fault Protection |
Use Scenario: Battery disconnect unit (BDU) current monitoring in 48V mild-hybrid architectures. IC Role / Device Role / Timing Role: Isolated current sensor interfacing with system controller to validate pre-charge sequencing and detect short circuits. Use Value: Provides galvanically isolated measurement (100 VPK) and 1µs OCD response to meet ISO 26262 ASIL-B diagnostic coverage targets. |
Use Scenario: Secondary-side current monitoring in OBC (on-board charger) DC-DC converters for fault logging and shutdown. IC Role / Device Role / Timing Role: Fast-response over-current detector triggering hardware-level disable of synchronous rectifiers. Use Value: Prevents MOSFET avalanche failure during output short events by asserting /OCD within one switching cycle at 100kHz. |
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-30AB-T | SOIC-8 package (5.9mm × 4.9mm); ±30A range; 66 mV/A sensitivity; no integrated OCD output. | Lacks dedicated /OCD pin - requires external comparator circuit for over-current detection, increasing BOM count and layout complexity. | Select when board space allows larger package and OCD functionality is implemented externally. |
| TLE4971-2500S4HAMA1 | PG-DSO-16 package; ±30A range; 40 mV/A sensitivity; digital SENT output; AEC-Q100 Grade 0 (−40°C to +150°C). | Output is digital SENT protocol - incompatible with analog ADC interfaces; higher max temp rating but no ratiometric analog option. | Select when digital bus integration (e.g., with CAN FD gateway) is required and analog interface is unavailable. |
Compared with ACS724LLCTR-30AB-T and TLE4971-2500S4HAMA1, the MCQ1823GQTE-330BANAEC-P uniquely combines ultra-compact TQFN-12 packaging, integrated analog output with ratiometric/absolute modes, and a dedicated fast OCD pin - reducing component count and PCB area while preserving design flexibility for both analog control loops and hardware fault responses.
Availability
MCQ1823GQTE-330BANAEC-P is available at Aetrix Electronics and suitable for motor control, automotive battery management, and over-current protection applications requiring stable component supply, AEC-Q100 compliance, and high-temperature operational reliability.
Supply support for MCQ1823GQTE-330BANAEC-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 core expertise in DC-DC conversion, motor drivers, and precision analog sensing solutions.
The MCQ1823 product line is designed specifically for automotive and industrial current sensing where miniaturization, magnetic immunity, and functional safety compliance are mandatory - targeting next-generation EV powertrain, ADAS, and energy storage systems.
FAQ
What is the meaning of 'BANAEC' in MCQ1823GQTE-330BANAEC-P?
The suffix 'BANAEC' decodes as: B = bidirectional current sensing, A = absolute output mode (not ratiometric), N = non-latched /OCD output, AEC = AEC-Q100 qualification. The 'P' denotes tape-and-reel packaging. This configuration delivers 0–1.32V output for ±30A input with immediate OCD assertion on over-current, validated for automotive use.
Does MCQ1823GQTE-330BANAEC-P require external calibration?
No. The device is factory-trimmed for sensitivity, offset, and linearity, achieving ±2.5% total output error over −40°C to +125°C without end-of-line calibration. System-level calibration may still be applied for highest-accuracy applications, but is not required for ASIL-B functional safety compliance.
How is the OCD threshold configured for this part?
MCQ1823GQTE-330BANAEC-P has fixed 100% IPMAX OCD threshold (±30A) due to 'N' (non-latch) and absence of custom FF code in the part number. To adjust threshold, connect an external pull-up resistor (10kΩ–500kΩ) from /OCD to VCC - values outside that range risk incorrect triggering or slow rise time.
Can VOUT be used directly with a 3.3V microcontroller ADC?
Yes. In absolute mode (as indicated by 'A' in the suffix), VOUT ranges from 0V to 1.32V for ±30A input - well within the 0–3.3V input range of most SAR or sigma-delta ADCs. No level-shifting or attenuation is needed, simplifying signal chain design and improving SNR.
Is the thermal pad on the TQFN-12 package required to be soldered?
Yes. The exposed thermal pad is electrically connected to GND and is essential for thermal dissipation and EMI suppression. It must be soldered to a minimum 100mm² copper pour with ≥4 thermal vias (0.3mm diameter) to inner ground planes to maintain junction temperature ≤125°C at 30A continuous current.
What isolation rating does MCQ1823GQTE-330BANAEC-P provide?
The device provides basic isolation rated at 100 VPK or 100 VDC per IEC62368-1, sufficient for functional isolation in 48V automotive systems and industrial 24V/48V equipment. It is not reinforced or double-insulated; for higher working voltages, external isolation barriers remain necessary.
How does the differential Hall architecture improve noise immunity?
The dual Hall transducers measure magnetic field difference between two spatially separated points, canceling uniform and linear-gradient stray fields (e.g., from nearby inductors or busbars). This eliminates need for magnetic shielding and enables accurate sensing in dense power electronics layouts where conventional single-Hall sensors fail.
MCQ1823GQTE-330BANAEC-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:
- 30A
- Number of Channels:
- 1
- Output:
- Analog Voltage
- Sensitivity:
- 44mV/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-330BANAEC-P FAQ
1.How can I place an order for MCQ1823GQTE-330BANAEC-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MCQ1823GQTE-330BANAEC-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-330BANAEC-P reliable?
The price and inventory of MCQ1823GQTE-330BANAEC-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-330BANAEC-P is usually 5 days.
3.What payment methods are accepted for MCQ1823GQTE-330BANAEC-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCQ1823GQTE-330BANAEC-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCQ1823GQTE-330BANAEC-P?
MCQ1823GQTE-330BANAEC-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCQ1823GQTE-330BANAEC-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-330BANAEC-P?
For technical support, including MCQ1823GQTE-330BANAEC-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCQ1823GQTE-330BANAEC-P requirements.
6.How does Aetrix verify that MCQ1823GQTE-330BANAEC-P is sourced from the original manufacturer or authorized distributors?
All MCQ1823GQTE-330BANAEC-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-330BANAEC-P meets industry standards.
7.What is the process for return or replacement of MCQ1823GQTE-330BANAEC-P?
All MCQ1823GQTE-330BANAEC-P units undergo pre-shipment inspection (PSI). If there is an issue with MCQ1823GQTE-330BANAEC-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-330BANAEC-P part is unused and in its original packaging.
Return procedure for MCQ1823GQTE-330BANAEC-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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