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Microchip Technology EMC1701-2-AIZL-TR
- Part No.:
- EMC1701-2-AIZL-TR
- Manufacturer:
- Microchip Technology
- Category:
- Power Management - Specialized
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
EMC1701-2-AIZL-TR.pdf
- Description:
- IC TEMP MONITOR I2C/SMBUS 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:5,297
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Product details
Overview
EMC1701-2-AIZL-TR from Microchip Technology (formerly SMSC) is a high-side current-sense IC with integrated ±1°C internal temperature monitoring, designed for real-time power management in voltage regulator and battery supply rails. It delivers 1% current measurement accuracy across 3V–24V bus voltages, supports SMBus 2.0 communication, and operates from –40°C to +85°C in a 10-pin MSOP package.
For engineers reviewing the EMC1701-2-AIZL-TR datasheet, EMC1701-2-AIZL-TR pinout, EMC1701-2-AIZL-TR application, or EMC1701-2-AIZL-TR equivalent, this device enables precise high-side current and ambient temperature co-monitoring in space-constrained power systems where dual-parameter feedback informs thermal throttling, overcurrent protection, and dynamic power budgeting.
Technical Context
The EMC1701-2-AIZL-TR integrates two independent ΣΔ ADCs: an 11-bit converter for current sensing (measuring voltage drop across external sense resistor) and a 13–15-bit converter for internal diode-based temperature measurement. It computes real-time power ratio (P = V × I) using synchronized source voltage and current samples.
It features dual alert outputs-ALERT (maskable, software-configurable limits) and THERM (non-maskable, critical threshold)-with open-drain logic compatible with 3.3V/5V systems. Unlike the EMC1701-1 variant, the EMC1701-2-AIZL-TR omits hardware peak detection (DUR_SEL/TH_SEL pins absent), relying solely on SMBus-programmable thresholds and timing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Current Accuracy | ±1% at full scale - ensures reliable overcurrent detection without calibration overhead in DC-DC output monitoring. |
| Bus Voltage Range | 3V to 24V - supports wide-input buck regulators, battery packs, and industrial 24V rail monitoring. |
| Temp Accuracy | ±1°C (–5°C < TA < 85°C) - enables accurate thermal margining for CPU/GPU VRMs and embedded controllers. |
| SMBus Interface | SMBus 2.0 compliant with block read/write - allows efficient multi-register access for real-time telemetry in host-managed power systems. |
| Package | 10-pin MSOP (3mm × 4.9mm) - surface-mount footprint optimized for dense PCB layouts near power stages. |
| Operating Temp | –40°C to +85°C ambient - qualified for industrial and computing environments without derating. |
| Supply Current | 610–1100 µA (active), 300 µA (full standby) - low quiescent power preserves efficiency in always-on monitoring applications. |
Pinout & Package
EMC1701-2-AIZL-TR is housed in a RoHS-compliant 10-pin MSOP package (3.0 mm × 4.9 mm × 1.0 mm height) with exposed thermal pad connected to GND. Pin 7 is GND; pins 1–6 and 8–10 are functional; no internal connection at pin 2 (N/C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD (Pin 4) | Positive power supply input | Accepts 3V–24V bus voltage; powers internal circuitry and bias for sense inputs. |
| SENSE+ (Pin 12) | High-side current sense positive input | 24V-tolerant analog input measuring voltage at upstream side of sense resistor. |
| SENSE– (Pin 11) | High-side current sense negative input | 24V-tolerant analog input measuring voltage at downstream side of sense resistor; differential pair defines current direction. |
| ALERT (Pin 6) | Maskable interrupt output | Open-drain, active-low signal asserted when temperature, voltage, or current exceeds programmable limits. |
| THERM (Pin 5) | Critical fault output | Open-drain, active-low non-maskable output triggered by hard thermal or overcurrent thresholds. |
| SMDATA (Pin 7) | SMBus bidirectional data line | 5V-tolerant, requires external pull-up; carries command/data packets per SMBus 2.0 protocol. |
| SMCLK (Pin 8) | SMBus clock input | 5V-tolerant, requires external pull-up; synchronizes all SMBus transactions. |
| ADDR_SEL (Pin 9) | SMBus address configuration | Analog input selecting one of four fixed SMBus addresses (0x4C–0x4F) via resistor-to-ground. |
| GND (Pin 7, bottom pad) | Reference ground | Primary return path for analog and digital circuits; thermal pad must be soldered to PCB ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional high-side current sensing | Enables charge/discharge monitoring in battery systems and reverse-current detection in redundant supplies. |
| Integrated power calculation (V × I) | Delivers real-time power ratio without host-side multiplication, reducing firmware overhead in thermal/power control loops. |
| Dual alert architecture (ALERT + THERM) | Separates recoverable warnings (ALERT) from system-critical faults (THERM), enabling tiered response in safety-critical designs. |
| 10-pin MSOP package with thermal pad | Provides superior thermal performance vs. SOIC alternatives while occupying <15 mm² PCB area near high-power components. |
| SMBus 2.0 with pin-selectable address | Allows up to four devices on same bus without address conflicts, simplifying multi-rail monitoring in servers or motherboards. |
Applications
| Notebook Power Management | Industrial DC-DC Monitoring |
|---|---|
Use Scenario: Real-time current and temperature tracking of CPU/GPU VRM output rails in thin-and-light notebooks. IC Role / Device Role / Timing Role: High-side current sensor and ambient diode thermometer feeding telemetry to EC or PMIC for dynamic frequency scaling and thermal throttling. Use Value: ±1°C temp accuracy and 1% current precision enable tighter thermal margins, extending battery runtime without compromising reliability. | Use Scenario: Continuous monitoring of 24V industrial DC-DC converter output supplying PLC I/O modules. IC Role / Device Role / Timing Role: Dual-parameter sensor providing overcurrent flag (ALERT) and immediate shutdown trigger (THERM) for fieldbus-powered subsystems. Use Value: 3V–24V bus range and –40°C to +85°C operation ensure robustness in factory-floor environments with wide voltage and temperature swings. |
| Embedded System Power Budgeting | Server Board Power Telemetry |
Use Scenario: Power-aware firmware in ARM-based edge gateways measuring supply current and junction temperature of SoC power rails. IC Role / Device Role / Timing Role: SMBus slave delivering synchronized V/I/T registers for host-driven power capping and predictive maintenance analytics. Use Value: Block-read SMBus support enables single transaction retrieval of all telemetry, minimizing bus occupancy in resource-constrained microcontrollers. | Use Scenario: Multi-rail telemetry collection on server motherboard VRMs, including CPU, memory, and PCIe switch supplies. IC Role / Device Role / Timing Role: Compact, address-configurable sensor deployed across 4–8 rails to feed IPMI/BMC with per-rail power and thermal status. Use Value: 10-pin MSOP footprint allows placement directly adjacent to each VRM, minimizing trace inductance and noise coupling in high-frequency switching environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side current and temperature monitoring applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| INA226AIDGST | Higher current accuracy (±0.1%), no integrated temperature sensor; requires external thermistor or diode interface. | Best suited when ultra-precise current measurement dominates over integrated thermal sensing. | Select if current measurement fidelity > ±0.5% is required and temperature monitoring can be handled separately. |
| MAX31723ASA+ | Standalone ±0.5°C local temperature sensor with SMBus; no current sensing capability. | Applicable only for thermal-only monitoring; lacks voltage/current/power telemetry. | Choose only when replacing EMC1701-2-AIZL-TR's temperature function alone, not its combined sensing role. |
Compared with INA226AIDGST and MAX31723ASA+, the EMC1701-2-AIZL-TR uniquely integrates calibrated current and temperature measurement in one 10-pin MSOP, eliminating inter-device synchronization errors and reducing BOM count for dual-parameter power telemetry.
Availability
EMC1701-2-AIZL-TR is available at Aetrix Electronics and suitable for notebook power management, industrial DC-DC monitoring, and embedded system power budgeting requiring stable component supply and long-term lifecycle support.
Supply support for EMC1701-2-AIZL-TR 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
Microchip Technology acquired SMSC in 2012 and maintains legacy SMSC analog and power monitoring product lines with full technical documentation and long-term support.
The EMC1701 family was designed specifically for host-managed power telemetry in computing and industrial platforms, emphasizing SMBus integration, dual-parameter accuracy, and compact packaging for proximity to high-current nodes.
FAQ
What is the maximum bus voltage the EMC1701-2-AIZL-TR can monitor?
The EMC1701-2-AIZL-TR supports a bus voltage range of 3V to 24V on its VDD, SENSE+, and SENSE– pins. Absolute maximum rating allows up to 26V transient exposure, but continuous operation above 24V is not specified. This makes EMC1701-2-AIZL-TR suitable for standard 12V and 24V industrial rails as well as laptop adapter outputs.
Does the EMC1701-2-AIZL-TR include hardware-based peak current detection?
No. The EMC1701-2-AIZL-TR does not include hardware peak detection circuitry. That feature is exclusive to the EMC1701-1 variant (which has DUR_SEL and TH_SEL pins). The EMC1701-2-AIZL-TR relies entirely on SMBus-configurable software thresholds and sampling rates to detect current excursions.
What is the temperature accuracy specification for the EMC1701-2-AIZL-TR?
The EMC1701-2-AIZL-TR provides ±1°C temperature accuracy over the range –5°C < TA < 85°C, measured using its internal diode channel. This specification is confirmed in the Electrical Characteristics table (Section 2.2) of the official datasheet revision 1.2 and applies directly to the EMC1701-2-AIZL-TR part number.
Can the EMC1701-2-AIZL-TR operate from a separate low-voltage supply?
Yes. The EMC1701-2-AIZL-TR supports dual power options: it may be powered from the monitored bus (VDD = VBUS) or from a separate low-voltage supply (e.g., 3.3V), enabling operation even when the main rail is below 3V - a key capability for brown-out detection and pre-power-up monitoring in the EMC1701-2-AIZL-TR.
How many SMBus addresses does the EMC1701-2-AIZL-TR support?
The EMC1701-2-AIZL-TR supports four fixed SMBus addresses (0x4C, 0x4D, 0x4E, 0x4F), selected via the ADDR_SEL pin using an external resistor to ground. This pin-strap configuration eliminates address collision risk in multi-device systems and is explicitly defined in Table 3.1 of the EMC1701-2-AIZL-TR datasheet.
EMC1701-2-AIZL-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- Current Sense, Temperature Monitor
- Current - Supply:
- 1.1mA
- Voltage - Supply:
- 3V ~ 24V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-MSOP
EMC1701-2-AIZL-TR FAQ
1.How can I place an order for EMC1701-2-AIZL-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for EMC1701-2-AIZL-TR 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 EMC1701-2-AIZL-TR reliable?
The price and inventory of EMC1701-2-AIZL-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for EMC1701-2-AIZL-TR is usually 5 days.
3.What payment methods are accepted for EMC1701-2-AIZL-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for EMC1701-2-AIZL-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for EMC1701-2-AIZL-TR?
EMC1701-2-AIZL-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your EMC1701-2-AIZL-TR 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 EMC1701-2-AIZL-TR?
For technical support, including EMC1701-2-AIZL-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your EMC1701-2-AIZL-TR requirements.
6.How does Aetrix verify that EMC1701-2-AIZL-TR is sourced from the original manufacturer or authorized distributors?
All EMC1701-2-AIZL-TR 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 EMC1701-2-AIZL-TR meets industry standards.
7.What is the process for return or replacement of EMC1701-2-AIZL-TR?
All EMC1701-2-AIZL-TR units undergo pre-shipment inspection (PSI). If there is an issue with EMC1701-2-AIZL-TR, 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 EMC1701-2-AIZL-TR part is unused and in its original packaging.
Return procedure for EMC1701-2-AIZL-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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