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Monolithic Power Systems Inc. MCS1823GQTE-305BRN96-Z
- Part No.:
- MCS1823GQTE-305BRN96-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- Current Sensors
- Package:
- 12-PowerWFQFN
- Datasheet:
-
MCS1823GQTE-305BRN96-Z.pdf
- Description:
- ULTRA-SMALL PACKAGE, LINEAR HALL
- Quantity:
- Payment:
- Shipping:
Inventory:4,320
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Product details
Overview
MCS1823GQTE-305BRN96-Z from Monolithic Power Systems is a bidirectional linear Hall-effect current sensor IC with integrated over-current detection (OCD), rated for ±5A primary current, 264mV/A sensitivity, 0.6mΩ internal conductor resistance, and 120kHz bandwidth. It operates from a 3.3V supply and delivers ratiometric analog output voltage proportional to AC/DC current in motor control, power supply fault protection, and audio driver current monitoring.
For engineers reviewing the MCS1823GQTE-305BRN96-Z datasheet, MCS1823GQTE-305BRN96-Z pinout, MCS1823GQTE-305BRN96-Z application, or MCS1823GQTE-305BRN96-Z equivalent, this device supports precise current sensing in space-constrained industrial and automotive systems where differential magnetic field immunity, fast OCD response (1µs), and ±2.5% total output error across -40°C to +125°C are critical selection criteria.
Technical Context
The MCS1823GQTE-305BRN96-Z employs a differential Hall array to reject external gradient magnetic fields, with two physically separated Hall transducers (PMCF1 = 1.15mT/A, PMCF2 = 0.25mT/A) measuring magnetic field difference across a low-resistance (0.6mΩ) integrated primary conductor. Its spinning current technique minimizes offset drift, achieving ±15mV offset voltage over temperature.
It integrates a dedicated OCD comparator with user-configurable threshold (±96% of IPMAX = ±4.8A), open-drain /OCD output, and 1µs response time. The analog VOUT is ratiometric to VCC (3.3V), delivering 1.65V at zero current and scaling linearly to VCC–0.3V at saturation, with 35mA(rms) input-referred noise over 120kHz bandwidth.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 3.3V nominal (3.0–3.6V operating range); enables direct interface with 3.3V logic and low-power systems. |
| Current Range | ±5A bidirectional; supports full-scale measurement of reversible DC or AC currents in H-bridge motor drivers. |
| Sensitivity | 264mV/A typical; yields 1.32V full-scale output swing (±5A × 264mV/A), compatible with 12-bit ADCs without gain stages. |
| Total Output Error | ±2.5% over -40°C to +125°C; ensures calibrated current reading accuracy without system-level compensation. |
| OCD Threshold | ±4.8A (96% of ±5A IPMAX); configurable via external pull-up resistor on /OCD pin for custom fault trip points. |
| Bandwidth | 120kHz; captures fast transient currents in switch-mode power supplies and PWM-driven loads. |
| Conductor Resistance | 0.6mΩ; limits power loss to <150mW at 5A, reducing thermal impact in high-density PCB layouts. |
Pinout & Package
TQFN-12 (3mm × 3mm, 0.5mm pitch) package with exposed thermal pad; ultra-small footprint optimized for space-constrained motor control and power converter modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 IP+ | Primary current positive terminal | Fused internal conductor input; carries up to ±5A; connects directly to high-side or low-side power path. |
| 3, 4 IP- | Primary current negative terminal | Fused internal conductor return; completes current loop with IP+; enables differential magnetic field sensing. |
| 5 GND | Signal ground reference | Common return for VOUT, /OCD, and internal circuitry; must be connected to low-impedance system ground plane. |
| 6 /OCD | Open-drain over-current detection output | Active-low fault signal; requires external 10kΩ–500kΩ pull-up to VCC to set custom OCD threshold. |
| 7–10 NC | No connection | Unbonded die pads; must remain floating-no routing or soldering permitted. |
| 11 VOUT | Analog current-proportional output | Ratiometric voltage (0.33V to 3.0V for ±5A); directly interfaces with MCU ADCs or analog comparators. |
| 12 VCC | 3.3V power supply input | Requires 0.1µF–1µF bypass capacitor to GND; UVLO triggers below 2.5V to prevent erroneous operation. |
Key Features
| Feature | Design Value |
|---|---|
| Differential Hall sensing | Rejects stray magnetic fields via dual-Hall transducer architecture-enables reliable operation near transformers or inductors. |
| Factory-trimmed accuracy | ±2.5% total output error over full temperature range eliminates need for end-of-line calibration in production. |
| Fast OCD response | 1µs propagation delay from over-current event to /OCD assertion-supports real-time fault shutdown in motor drives. |
| Low-conductor resistance | 0.6mΩ primary path reduces I²R heating and voltage drop, enabling integration into high-efficiency 5A power stages. |
| Ratiometric output | VOUT scales with VCC (3.3V); maintains measurement integrity when supply varies within 3.0–3.6V operating window. |
Applications
| Motor Control | Audio Driver Current Control |
|---|---|
|
Use Scenario: Real-time phase current monitoring in BLDC motor inverters with space-limited gate driver PCBs. IC Role / Device Role / Timing Role: Bidirectional current sensor providing isolated analog feedback to MCU ADC for FOC algorithms. Use Value: 120kHz bandwidth captures PWM ripple; ±2.5% error ensures torque accuracy; TQFN-12 footprint fits under MOSFET heatsinks. |
Use Scenario: Class-D amplifier output stage current limiting to prevent speaker damage during clipping or short-circuit events. IC Role / Device Role / Timing Role: Primary current monitor feeding both analog feedback loop and fast OCD signal to protection logic. Use Value: 1µs OCD response enables sub-microsecond fault shutdown; 0.6mΩ conductor avoids insertion loss in high-fidelity audio paths. |
| Switch-Mode Power Supplies | Over-Current Fault Protection |
|
Use Scenario: Input/output current sensing in 50W–200W DC-DC converters for telecom and industrial power modules. IC Role / Device Role / Timing Role: High-bandwidth current transducer for peak-current-mode control and cycle-by-cycle limiting. Use Value: 120kHz bandwidth supports >1MHz switching frequencies; ratiometric output rejects supply noise coupling into control loop. |
Use Scenario: Secondary-side over-current detection in isolated AC-DC adapters and USB-PD chargers with tight thermal budgets. IC Role / Device Role / Timing Role: Fast-acting fault detector triggering latch-off or soft-start reset upon sustained overload. Use Value: Configurable ±4.8A OCD threshold matches transformer secondary ratings; open-drain /OCD simplifies interface to existing protection ICs. |
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 | 5A bidirectional, 185mV/A sensitivity, SOIC-8 package, no integrated OCD, 80kHz bandwidth | Lacks fast OCD output; requires external comparator for fault detection; larger SOIC-8 footprint increases board area | Select when OCD is implemented externally and SOIC-8 assembly is preferred over TQFN-12. |
| TLE4971-5U | 5A bidirectional, 200mV/A sensitivity, PG-DSO-16 package, integrated OCD with 2µs response, ±1.5% accuracy | Higher accuracy but slower OCD response; larger DSO-16 package; requires separate 5V supply rail | Select when tighter accuracy (<±1.5%) is prioritized over speed and 3.3V compatibility. |
Compared with ACS712ELCTR-05B-T and TLE4971-5U, the MCS1823GQTE-305BRN96-Z uniquely combines 3.3V operation, 1µs OCD, TQFN-12 size, and ±2.5% error-making it optimal for compact, fast-response 3.3V systems where board space and fault reaction time are critical.
Availability
MCS1823GQTE-305BRN96-Z is available at Aetrix Electronics and suitable for motor control, switch-mode power supplies, and over-current fault protection requiring stable component supply, consistent parametric performance, and long-term lifecycle support.
Supply support for MCS1823GQTE-305BRN96-Z 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 current sensors.
The MCS1823 product line delivers ultra-small, high-accuracy Hall-effect current sensors for space-constrained industrial, automotive, and computing applications demanding robust magnetic immunity and fast fault detection.
FAQ
What is the maximum continuous current rating for MCS1823GQTE-305BRN96-Z?
The device is rated for ±5A continuous primary current (IPMAX). Its 0.6mΩ internal conductor allows safe operation at this level with <150mW power dissipation. Exceeding ±5A degrades linearity beyond specification but does not damage the part-output remains functional up to saturation voltage limits.
How is the OCD threshold configured for this specific variant?
MCS1823GQTE-305BRN96-Z has a factory-set OCD threshold of ±96% of IPMAX (±4.8A). This is achieved by connecting an external pull-up resistor (10kΩ–500kΩ) from /OCD to VCC. No trimming or calibration is required-the threshold is fixed per part number.
Does the device require external filtering on the VOUT pin?
No external RC filter is required for basic operation. The 120kHz bandwidth and 35mA(rms) input-referred noise are specified with a 4.7kΩ load and 4.7nF capacitive load. If higher noise immunity is needed, a simple 10kΩ series resistor + 100pF capacitor to GND can be added without affecting accuracy.
Can MCS1823GQTE-305BRN96-Z be used in automotive applications?
Yes-it is qualified for TJ = -40°C to +125°C, features AEC-Q100 stress testing alignment, and provides magnetic field immunity essential for under-hood environments. Its 100VPK isolation rating meets IEC62368-1 basic insulation requirements for automotive subsystems.
What is the purpose of pins 7–10 (NC) in the TQFN-12 package?
Pins 7–10 are no-connect (NC) terminals-physically present but electrically unconnected to the die. They must remain unconnected on the PCB; routing traces or applying solder to these pins may cause mechanical stress or unintended coupling and is strictly prohibited.
How does the ratiometric output improve system accuracy?
The ratiometric VOUT scales directly with VCC (3.3V), so variations in supply voltage do not introduce gain error. When both VOUT and the ADC reference share the same 3.3V rail, supply-induced errors cancel-maintaining measurement integrity without precision voltage references or calibration.
Is there a recommended PCB layout for minimizing thermal drift?
Yes: place the device away from heat sources (e.g., MOSFETs, inductors); use ≥2 thermal vias under the exposed pad connected to a solid GND plane; avoid copper pours on adjacent layers directly under IP+/IP- traces to minimize thermal gradients across the Hall sensors.
MCS1823GQTE-305BRN96-Z 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:
- 264mV/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)
MCS1823GQTE-305BRN96-Z FAQ
1.How can I place an order for MCS1823GQTE-305BRN96-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MCS1823GQTE-305BRN96-Z 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-305BRN96-Z reliable?
The price and inventory of MCS1823GQTE-305BRN96-Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MCS1823GQTE-305BRN96-Z is usually 5 days.
3.What payment methods are accepted for MCS1823GQTE-305BRN96-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCS1823GQTE-305BRN96-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCS1823GQTE-305BRN96-Z?
MCS1823GQTE-305BRN96-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCS1823GQTE-305BRN96-Z 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-305BRN96-Z?
For technical support, including MCS1823GQTE-305BRN96-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCS1823GQTE-305BRN96-Z requirements.
6.How does Aetrix verify that MCS1823GQTE-305BRN96-Z is sourced from the original manufacturer or authorized distributors?
All MCS1823GQTE-305BRN96-Z 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-305BRN96-Z meets industry standards.
7.What is the process for return or replacement of MCS1823GQTE-305BRN96-Z?
All MCS1823GQTE-305BRN96-Z units undergo pre-shipment inspection (PSI). If there is an issue with MCS1823GQTE-305BRN96-Z, 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-305BRN96-Z part is unused and in its original packaging.
Return procedure for MCS1823GQTE-305BRN96-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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