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Monolithic Power Systems Inc. MCS1823GQTE-505BRN-P
- Part No.:
- MCS1823GQTE-505BRN-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- Current Sensors
- Package:
- 12-PowerWFQFN
- Datasheet:
-
MCS1823GQTE-505BRN-P.pdf
- Description:
- ULTRA-SMALL PACKAGE, LINEAR HALL
- Quantity:
- Payment:
- Shipping:
Inventory:4,041
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Product details
Overview
MCS1823GQTE-505BRN-P from Monolithic Power Systems is a bidirectional linear Hall-effect current sensor IC with integrated over-current detection (OCD), designed for high-accuracy AC/DC current sensing in space-constrained systems. It features ±5A rated current range, 400 mV/A sensitivity at 5V supply, 0.6mΩ internal conductor resistance, ±2.5% total output error, and 120kHz bandwidth - enabling precise motor phase current monitoring in compact inverters.
For engineers reviewing the MCS1823GQTE-505BRN-P datasheet, MCS1823GQTE-505BRN-P pinout, MCS1823GQTE-505BRN-P application, or MCS1823GQTE-505BRN-P equivalent, key selection considerations include its ratiometric/absolute VOUT option, 1µs OCD response time, differential Hall array immunity to stray fields, and TQFN-12 (3mm×3mm) package footprint for PCB area optimization.
Technical Context
The MCS1823GQTE-505BRN-P employs a differential Hall array with spinning current offset cancellation to reject external magnetic gradients and achieve stable zero-current output voltage (2.5V at 5V supply). Its primary conductor is fused and integrated into the die, delivering 0.6mΩ resistance and galvanic isolation up to 100 VPK per IEC62368-1.
Functional block integration includes POR regulation, temperature compensation, bandwidth tuning (120kHz), and an open-drain /OCD output with user-configurable threshold (via external pull-up resistor) and 1µs propagation delay from over-current event to fault assertion.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 5V nominal (4.5–5.5V operating range); enables direct interface with 5V microcontrollers and logic without level-shifting. |
| Current Range | ±5A bidirectional; supports full-scale sensing of motor drive, audio amplifier, or SMPS load currents with polarity detection. |
| Sensitivity | 400 mV/A at 25°C; yields 2.5V full-scale output swing (0–5V) for ±5A input, simplifying ADC scaling in 12-bit+ systems. |
| Total Output Error | ±2.5% over -40°C to +125°C; ensures calibrated current measurement accuracy without per-unit trimming in industrial environments. |
| OCD Response Time | 1 µs; provides fast fault shutdown for IGBT/MOSFET gate drivers in high-speed power converters. |
| Bandwidth | 120 kHz; captures fast transient currents in PWM-driven motors and Class-D amplifiers without phase lag. |
| Conductor Resistance | 0.6 mΩ; minimizes power loss (<150 mW at 5A) and thermal rise in high-current paths. |
Pinout & Package
The MCS1823GQTE-505BRN-P is housed in an ultra-small TQFN-12 package (3mm × 3mm, 0.5mm pitch), optimized for high-density PCB layouts and thermally efficient mounting on copper planes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 IP+ | Primary current positive terminal | Fused internal conductor input; carries full sensed current with 0.6mΩ resistance and low thermal impedance. |
| 3, 4 IP- | Primary current negative terminal | Fused return path; completes current loop through integrated conductor while maintaining magnetic field symmetry for differential sensing. |
| 5 GND | Signal ground reference | Common reference for analog output (VOUT), OCD logic, and internal regulators; requires low-impedance PCB connection. |
| 6 /OCD | Open-drain over-current fault output | Active-low signal asserted within 1µs of IP exceeding ±5A; requires external 10kΩ–500kΩ pull-up to VCC for threshold configuration. |
| 7–10 NC | No connection | Unbonded die pads; must remain unconnected and un-soldered to avoid parasitic coupling or mechanical stress. |
| 11 VOUT | Analog current-proportional output | Ratiometric 2.5V ±100mV at IP = 0A; outputs 0.5V to 4.5V for ±5A range; drives 4.7kΩ loads directly. |
| 12 VCC | Power supply input | 5V supply input; requires 0.1µF–1µF ceramic bypass capacitor to GND placed within 2mm for noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Differential Hall sensing | Rejects external magnetic interference via dual-point field sampling and subtraction - eliminates need for magnetic shielding in noisy motor control environments. |
| Factory-trimmed sensitivity & offset | Delivers ±2.5% total error without system-level calibration; reduces BOM cost and firmware complexity in production test. |
| Configurable OCD threshold | Supports 50%–240% of IPMAX via external RPULLUP; enables flexible fault margin setting across multiple load profiles without hardware change. |
| Zero magnetic hysteresis | Ensures repeatable current measurement across bidirectional cycles - critical for torque control in servo drives and regenerative braking systems. |
| TQFN-12 thermal performance | Low thermal resistance (θJA ≈ 90°C/W) enables operation at 125°C junction temperature with minimal heatsinking in enclosed enclosures. |
Applications
| Motor Control | Audio Driver Current Control |
|---|---|
Use Scenario: Real-time phase current sensing in 3-phase BLDC motor inverters for field-oriented control (FOC). IC Role / Device Role / Timing Role: Bidirectional current sensor providing synchronized analog feedback to MCU ADC with <3µs propagation delay. Use Value: Enables precise torque ripple reduction and efficient commutation at 20kHz PWM frequencies without external shunt amplification. | Use Scenario: Monitoring output stage current in Class-D audio amplifiers to prevent clipping-induced speaker damage. IC Role / Device Role / Timing Role: High-bandwidth (120kHz) analog current monitor feeding protection logic and dynamic gain adjustment circuits. Use Value: Delivers 1µs OCD response to limit peak current before MOSFET thermal runaway, preserving amplifier reliability under short-circuit conditions. |
| Switch-Mode Power Supplies | Over-Current Fault Protection |
Use Scenario: Input/output current monitoring in isolated DC-DC converters for digital power management and adaptive load shedding. IC Role / Device Role / Timing Role: Galvanically isolated current sensor (100 VPK working voltage) replacing optocoupled shunt solutions. Use Value: Reduces component count by integrating conductor, Hall elements, and signal conditioning - cutting bill-of-materials by 3 parts per channel. | Use Scenario: Fast-acting over-current detection in battery protection ICs and e-fuse modules for USB-C PD and portable power banks. IC Role / Device Role / Timing Role: Primary fault detector with programmable trip point and latched/non-latched /OCD output modes. Use Value: Eliminates need for external comparators and RC timing networks, shrinking PCB area by >40% versus discrete OCD implementations. |
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 | 5V supply, ±5A range, 185 mV/A sensitivity, no integrated OCD, SOIC-8 package (5.1mm × 4.0mm) | Lacks fast OCD output; requires external comparator circuit for fault detection; larger footprint increases board area by 2.7× | Select when OCD is handled externally and SOIC-8 assembly infrastructure is already in place. |
| TLE4971-5U | 5V supply, ±5A range, 200 mV/A sensitivity, 2.5µs OCD response, PG-TO263-7 package (10.2mm × 12.5mm) | Slower OCD response (2.5µs vs. 1µs); larger thermally robust package suited for >10A applications but over-engineered for 5A use cases | Select only if higher thermal margin or AEC-Q100 automotive qualification is mandatory. |
Compared with ACS712ELCTR-05B-T and TLE4971-5U, the MCS1823GQTE-505BRN-P delivers superior sensitivity (400 mV/A), faster OCD (1µs), and smallest footprint (3mm×3mm), making it optimal for miniaturized industrial and consumer power electronics where size, speed, and integration density are critical.
Availability
MCS1823GQTE-505BRN-P is available at Aetrix Electronics and suitable for motor control, audio driver current monitoring, and switch-mode power supply design requiring stable component supply, consistent parametric performance across temperature, and long-term lifecycle continuity.
Supply support for MCS1823GQTE-505BRN-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, including DC-DC converters, LED drivers, and precision analog sensors - with global manufacturing and quality certifications aligned to ISO 9001 and IATF 16949.
The MCS1823 product line targets space-constrained, high-reliability current sensing in industrial motor drives, audio systems, and power conversion - emphasizing ultra-small packaging, magnetic immunity, and integrated fault protection to reduce system-level design complexity.
FAQ
What is the maximum continuous current the MCS1823GQTE-505BRN-P can measure without saturation?
The device maintains linear output up to ±5A (IPMAX) with ±2.5% total error. Beyond this range, analog output remains proportional but nonlinearity increases; saturation occurs near ±6.25A (125% of IPMAX), where VOUT reaches ~0.5V or ~4.5V depending on polarity. Continuous operation above ±5A is not recommended for precision measurement.
Does the MCS1823GQTE-505BRN-P require external calibration for production use?
No. The device is factory-trimmed for sensitivity and offset, delivering ±2.5% total output error over -40°C to +125°C without system-level calibration. Zero-current output is 2.5V ±100mV at 5V supply, and sensitivity is 400 mV/A ±2% - sufficient for most closed-loop control applications without per-unit trimming.
How is the over-current detection threshold set on the /OCD pin?
The OCD threshold is configured by connecting an external pull-up resistor (10kΩ to 500kΩ) between /OCD and VCC. Threshold scales linearly from 50% to 240% of IPMAX (±2.5A to ±12A) based on RPULLUP value. For MCS1823GQTE-505BRN-P, default threshold is ±5A (100% IPMAX) with RPULLUP = 100kΩ - verified per datasheet Table 1.
Can the MCS1823GQTE-505BRN-P be used in automotive applications?
While qualified for -40°C to +125°C junction temperature and RoHS-compliant, the MCS1823GQTE-505BRN-P is not AEC-Q100 qualified. It is intended for industrial and consumer applications. For automotive-grade use, MPS offers the pin-compatible MCS1823GQTE-505BRN-A variant with full AEC-Q100 Grade 1 certification and extended reliability testing.
What is the recommended PCB layout practice for minimizing noise on VOUT?
Route VOUT with a dedicated analog trace ≥0.25mm wide, separated from switching nodes by ≥1mm. Place a 0.1µF ceramic capacitor from VOUT to GND within 3mm of the pin. Use solid GND plane beneath the IC and avoid routing digital traces under the sensor body to prevent capacitive coupling into the Hall array.
Is the primary conductor internally fused, and what is its current interrupt rating?
Yes - pins 1/2 (IP+) and 3/4 (IP-) contain internal fuses rated for 100A interrupt current at 5V. Fusing protects against catastrophic failure during short-circuit events. The 0.6mΩ conductor supports continuous 5A RMS with <150mW dissipation; derating is required above 85°C ambient per thermal data in Section 7 of the datasheet.
Does the MCS1823GQTE-505BRN-P support unidirectional current sensing?
No - the "B" in the part number suffix (GQTE-505BRN-P) denotes bidirectional operation. Unidirectional variants (e.g., MCS1823GQTE-535URN-P) exist with 0–35A range and 0.1×VCC zero-current output, but MCS1823GQTE-505BRN-P is strictly ±5A bidirectional with VOUT(Q) = VCC/2 = 2.5V.
MCS1823GQTE-505BRN-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)
MCS1823GQTE-505BRN-P FAQ
1.How can I place an order for MCS1823GQTE-505BRN-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MCS1823GQTE-505BRN-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 MCS1823GQTE-505BRN-P reliable?
The price and inventory of MCS1823GQTE-505BRN-P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MCS1823GQTE-505BRN-P is usually 5 days.
3.What payment methods are accepted for MCS1823GQTE-505BRN-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCS1823GQTE-505BRN-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCS1823GQTE-505BRN-P?
MCS1823GQTE-505BRN-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCS1823GQTE-505BRN-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 MCS1823GQTE-505BRN-P?
For technical support, including MCS1823GQTE-505BRN-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCS1823GQTE-505BRN-P requirements.
6.How does Aetrix verify that MCS1823GQTE-505BRN-P is sourced from the original manufacturer or authorized distributors?
All MCS1823GQTE-505BRN-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 MCS1823GQTE-505BRN-P meets industry standards.
7.What is the process for return or replacement of MCS1823GQTE-505BRN-P?
All MCS1823GQTE-505BRN-P units undergo pre-shipment inspection (PSI). If there is an issue with MCS1823GQTE-505BRN-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 MCS1823GQTE-505BRN-P part is unused and in its original packaging.
Return procedure for MCS1823GQTE-505BRN-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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