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Monolithic Power Systems Inc. EVQ79500FS-Q-00A
- Part No.:
- EVQ79500FS-Q-00A
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- Unclassified
- Package:
- Datasheet:
-
EVQ79500FS-Q-00A.pdf
- Description:
- MPSAFETM ASIL-D 6-CHANNEL VOLTAG
- Quantity:
- Payment:
- Shipping:
Inventory:3,708
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Product details
Overview
EVQ79500FS-Q-00A from Monolithic Power Systems is a linear Hall-effect current sensor IC with galvanic isolation, integrated over-current detection (OCD), 3kVRMS isolation voltage, 580VRMS working voltage, and ±2.5% total accuracy across –40°C to +125°C. It supports bidirectional or unidirectional current sensing from ±5A to ±50A (or 0–50A), delivers ratiometric analog output proportional to AC/DC current, and operates from 3.3V or 5V supply. Used in motor control inverters for real-time phase current monitoring with fast fault response.
For engineers reviewing the EVQ79500FS-Q-00A datasheet, EVQ79500FS-Q-00A pinout, EVQ79500FS-Q-00A application, or EVQ79500FS-Q-00A equivalent, this page provides verified technical context, SOIC-8 package mapping, OCD threshold configuration options, noise density (100 µA(rms)/√Hz), and isolation compliance per IEC 62368-1:2018 - all critical for safety-critical power stage design.
Technical Context
The device uses a differential Hall array to reject external magnetic field gradients and employs spinning current calibration to achieve stable offset (<±15 mV) and low drift (±1% lifetime). Its primary conductor features 1.2 mΩ resistance and supports surge currents up to 3000 A (8µs/20µs pulse), enabling direct integration into high-power paths without external shunts.
Galvanic isolation separates primary current terminals (IP+, IP−) from signal pins (VCC, VOUT, /OCD, GND), achieving 4.2 mm creepage/clearance and certified 3000 VRMS withstand voltage. The OCD function offers user-configurable thresholds (50–240% of IPMAX) with 1 µs response time and 3–12% hysteresis, supporting fast, reliable fault shutdown in motor drives and SMPS.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Voltage | 3000 VRMS - certified basic isolation per IEC 62368-1:2018, enabling replacement of optocouplers in reinforced insulation systems. |
| Working Voltage | 580 VRMS - maximum continuous operating voltage across isolation barrier, defining safe system-level voltage rating. |
| Total Accuracy | ±2.5% - includes sensitivity error, offset drift, and nonlinearity over full temperature range (–40°C to +125°C). |
| Bandwidth | 120 kHz - supports accurate current sampling in 20 kHz PWM motor drives and high-frequency switch-mode power supplies. |
| OCD Response Time | 1 µs - enables sub-microsecond fault detection for IGBT/MOSFET short-circuit protection in traction inverters. |
| Noise Density | 100 µA(rms)/√Hz - defines minimum resolvable current step; yields ~35 mA RMS input-referred noise in 120 kHz bandwidth. |
| Primary Resistance | 1.2 mΩ - minimizes power loss (<300 mW at 50 A) and thermal rise in high-current conduction path. |
Pinout & Package
EVQ79500FS-Q-00A is housed in a standard SOIC-8 package (5 mm × 4 mm, 1.55 mm height) with gull-wing leads, RoHS-compliant, halogen-free, and rated MSL 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 | IP+ | Primary current input (+); fused internal connection; carries full load current (up to 50 A DC) with 1.2 mΩ resistance. |
| 3, 4 | IP− | Primary current return (−); fused internal connection; completes isolated current path with IP+. |
| 5 | GND | Signal ground reference for VOUT and /OCD; electrically isolated from IP+ and IP− by >3 kVRMS barrier. |
| 6 | /OCD | Open-drain, active-low over-current flag; requires external pull-up (10–500 kΩ to VCC); asserts within 1 µs of threshold breach. |
| 7 | VOUT | Analog output voltage (ratiometric to VCC); 0.1×VCC (unidir) or VCC/2 (bidir) at zero current; ±26.4–800 mV/A sensitivity depending on variant. |
| 8 | VCC | Supply input (3.3 V or 5 V); requires 0.1–1 µF bypass capacitor to GND; includes UVLO (2.5 V threshold, 500 mV hysteresis). |
Key Features
| Feature | Design Value |
|---|---|
| Differential Hall Sensing | Rejects stray magnetic fields via dual-point measurement and spinning current technique, reducing offset drift to ±1% over life. |
| Configurable OCD Threshold | Factory-programmable from 50% to 240% of rated current (IPMAX); eliminates need for external comparator and reference in fault logic. |
| Ratiometric Output | VOUT scales linearly with VCC (98–102% ratiometry), maintaining accuracy despite supply variation in noisy industrial environments. |
| High Surge Withstand | Withstands 3000 A transient pulses (8 µs rise / 20 µs width per IEC 61000-4-5), enabling robust operation in motor startup and fault conditions. |
| Low-Noise Signal Chain | 100 µA(rms)/√Hz input-referred noise density ensures <1% current measurement uncertainty at 10 A RMS in 120 kHz bandwidth. |
Applications
| Motor Control | Automotive Systems |
|---|---|
|
Use Scenario: Real-time phase current sensing in 3-phase BLDC/PMSM inverter for field-oriented control (FOC). IC Role / Device Role / Timing Role: Isolated current feedback sensor replacing shunt + op-amp + isolator stack; provides 120 kHz bandwidth and 1 µs OCD response for cycle-by-cycle protection. Use Value: Enables precise torque regulation and immediate IGBT desaturation shutdown during short-circuit events without external fault logic. |
Use Scenario: High-voltage battery pack current monitoring in 48 V mild-hybrid or EV traction systems. IC Role / Device Role / Timing Role: Galvanically isolated primary-side current monitor interfacing directly to MCU ADC; rated for 580 VRMS working voltage and automotive temp range (–40°C to +125°C). Use Value: Eliminates need for separate isolation amplifiers and meets ASIL-B functional safety requirements via certified 3 kVRMS isolation. |
| Switch-Mode Power Supplies | Over-Current Fault Protection |
|
Use Scenario: Primary-side current sensing in isolated DC-DC converters (e.g., LLC resonant, phase-shifted full-bridge) for peak current mode control. IC Role / Device Role / Timing Role: Replaces current transformer + rectifier + amplifier chain; delivers ratiometric analog output synchronized to switching frequency with minimal propagation delay (2 µs). Use Value: Reduces BOM count by 4 components, improves dynamic response, and maintains accuracy across line/load transients due to low noise and high bandwidth. |
Use Scenario: Fast-acting over-current detection in industrial servo drives and UPS inverters to prevent MOSFET/IGBT destruction. IC Role / Device Role / Timing Role: Integrated OCD block with programmable threshold and open-drain output directly drives gate driver disable inputs. Use Value: Achieves 1 µs fault-to-shutdown latency - 5× faster than discrete solutions - preventing thermal runaway during shoot-through faults. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar isolated linear current sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ACS724LLCTR-20AU-T | 20 A unidirectional, 800 mV/A sensitivity, 2.4 kVRMS isolation, no integrated OCD, SOIC-8 package. | Lacks built-in over-current detection; requires external comparator and timing circuit for fault response. | Select when OCD is implemented externally and lower isolation voltage suffices for Class II equipment. |
| TMC1100-LA | 50 A bidirectional, 20 mV/A sensitivity, 5 kVRMS isolation, integrated digital SPI interface, QFN-16 package. | Provides digital output and diagnostics via SPI; higher isolation but lower sensitivity and no analog VOUT pin. | Select when digital communication, advanced diagnostics, and highest isolation are prioritized over analog simplicity and PCB footprint. |
Compared with ACS724LLCTR-20AU-T and TMC1100-LA, EVQ79500FS-Q-00A uniquely combines analog ratiometric output, factory-configurable OCD, 3 kVRMS isolation, and SOIC-8 compatibility - delivering optimal balance of integration, speed, and layout efficiency for cost-sensitive industrial motor drives.
Availability
EVQ79500FS-Q-00A is available at Aetrix Electronics and suitable for motor control inverters, automotive battery management systems, switch-mode power supplies, and over-current protection circuits requiring stable component supply, long-term lifecycle support, and certified isolation performance.
Supply support for EVQ79500FS-Q-00A 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, motor drivers, and precision analog sensors.
The MCS1805 product line delivers isolated Hall-effect current sensors optimized for space-constrained, high-reliability applications in industrial automation, automotive electrification, and renewable energy systems - emphasizing integration, safety certification, and thermal robustness.
FAQ
What supply voltage options does EVQ79500FS-Q-00A support?
EVQ79500FS-Q-00A supports two fixed supply options: 3.3 V (operating range 3.0–3.6 V) or 5 V (4.5–5.5 V). The part number suffix indicates voltage - "3" for 3.3 V, "5" for 5 V. Internal UVLO activates at 2.5 V with 500 mV hysteresis to prevent erratic behavior during brownout.
How is the OCD threshold configured for EVQ79500FS-Q-00A?
OCD threshold is factory-programmed and encoded in the part number suffix (e.g., "050" = 50% IPMAX, "150" = 150% IPMAX). No external resistor or pin-strapping is required. Hysteresis is fixed at 3–12% of threshold value, and response time is guaranteed ≤1.5 µs from over-current event to /OCD assertion.
Does EVQ79500FS-Q-00A require external filtering on VOUT?
No external RC filter is required for basic operation. VOUT has inherent 120 kHz bandwidth and low output impedance. If additional noise suppression is needed (e.g., in EMI-heavy environments), a 1–10 nF capacitor from VOUT to GND may be added - but this reduces bandwidth and must be validated against control loop stability.
What is the primary conductor's current-carrying capability and thermal derating?
The integrated primary conductor handles up to 50 A continuous DC current with 1.2 mΩ resistance, yielding <300 mW conduction loss at 50 A. Derating begins above +105°C ambient; full-rated current is maintained up to +125°C junction temperature per datasheet limits, with thermal resistance θJA ≈ 60°C/W in standard 2-layer FR4 layout.
Can EVQ79500FS-Q-00A measure both AC and DC current accurately?
Yes. The differential Hall architecture and spinning current calibration enable true AC/DC linearity with ±0.5% nonlinearity and ±2.5% total error across –40°C to +125°C. It measures RMS current of sinusoidal, pulsed, or arbitrary waveforms without waveform-dependent offset shift.
Is EVQ79500FS-Q-00A compliant with automotive AEC-Q200?
No. EVQ79500FS-Q-00A is qualified per industrial temperature grade (–40°C to +125°C) and meets IEC 62368-1:2018 for isolation safety, but it is not AEC-Q200 stress-tested or certified for automotive qualification. For automotive use, MPS recommends the pin-compatible MCS1805-AQ series.
What is the minimum recommended pull-up resistance for the /OCD pin?
The /OCD pin requires an external pull-up resistor between /OCD and VCC. MPS specifies 10 kΩ to 500 kΩ; 10 kΩ is recommended for fastest rise time (<100 ns) and noise immunity in noisy environments, while higher values reduce quiescent current at the cost of slower edge transitions.
EVQ79500FS-Q-00A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- *
- Packaging:
- Box
- Product Status:
- Active
EVQ79500FS-Q-00A FAQ
1.How can I place an order for EVQ79500FS-Q-00A through Aetrix?
Please submit a Request for Quotation (RFQ) for EVQ79500FS-Q-00A 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 EVQ79500FS-Q-00A reliable?
The price and inventory of EVQ79500FS-Q-00A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for EVQ79500FS-Q-00A is usually 5 days.
3.What payment methods are accepted for EVQ79500FS-Q-00A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for EVQ79500FS-Q-00A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for EVQ79500FS-Q-00A?
EVQ79500FS-Q-00A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your EVQ79500FS-Q-00A 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 EVQ79500FS-Q-00A?
For technical support, including EVQ79500FS-Q-00A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your EVQ79500FS-Q-00A requirements.
6.How does Aetrix verify that EVQ79500FS-Q-00A is sourced from the original manufacturer or authorized distributors?
All EVQ79500FS-Q-00A 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 EVQ79500FS-Q-00A meets industry standards.
7.What is the process for return or replacement of EVQ79500FS-Q-00A?
All EVQ79500FS-Q-00A units undergo pre-shipment inspection (PSI). If there is an issue with EVQ79500FS-Q-00A, 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 EVQ79500FS-Q-00A part is unused and in its original packaging.
Return procedure for EVQ79500FS-Q-00A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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