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Analog Devices Inc./Maxim Integrated MAX42500ATEDA+T
- Part No.:
- MAX42500ATEDA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 16-WFQFN Exposed Pad
- Datasheet:
-
MAX42500ATEDA+T.pdf
- Description:
- FOUR-TO-SEVEN INPUT, HIGH ACCURA
- Quantity:
- Payment:
- Shipping:
Inventory:2,835
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Product details
Overview
MAX42500ATEDA+T from Analog Devices is a SIL 3-certified system-on-chip power system monitor with seven voltage monitoring inputs (five single-ended, two differential with remote ground sense), programmable OV/UV thresholds (±1.3% accuracy over –40°C to +125°C), flexible power sequence recorder (FPSR), and challenge/response windowed watchdog - used for safety-critical industrial power supervision in robotics and process control systems.
For engineers reviewing the MAX42500ATEDA+T datasheet, MAX42500ATEDA+T pinout, MAX42500ATEDA+T application, or MAX42500ATEDA+T equivalent, key selection considerations include IEC 61508 SIL 3 compliance, differential DVS tracking capability on IN6P/IN7P/INM, programmable I2C address (0x28–0x2B), 16-pin 3mm × 3mm TQFN package, and fault-recording FPSR with timestamp resolution down to 25μs.
Technical Context
The MAX42500ATEDA+T integrates three core subsystems: a 7-channel voltage monitor (IN1–IN5 single-ended; IN6P/IN7P differential referenced to INM), a flexible power sequence recorder (FPSR) triggered by EN0/EN1 transitions with independent power-up/down timestamp storage, and a configurable challenge/response windowed watchdog accessible via I2C with extended first-update window for MCU boot sequences.
Its I2C interface supports up to 1.1MHz clock rate, CRC-8 packet error checking (PEC), programmable target address (7-bit, ADDR-pin selectable), and open-drain SDA with internal noise suppression; all voltage monitors feature ±1.3% OV/UV threshold accuracy across –40°C to +125°C and 5μs comparator filter time.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.35V to 5.50V - supports wide-range industrial rails without external LDO. |
| Operating Current | 150μA active / 8μA power-down - enables low-power always-on supervision in battery-backed systems. |
| OV/UV Threshold Accuracy | ±1.3% over –40°C to +125°C - ensures reliable fault detection under full automotive/industrial temperature stress. |
| Input Channels | 7 total: IN1–IN5 (single-ended, 0.5–5.5V range); IN6P/IN7P (differential vs. INM, 0.5–1.775V range) - enables simultaneous monitoring of core, I/O, and DVS rails. |
| FPSR Timestamp Resolution | 25μs to 3200μs per tick - allows precise validation of power sequencing timing margins in complex SoC startups. |
| Watchdog Clock Range | 200μs/tick to 12.8ms/tick - supports fine-grained or long-cycle supervision of diverse processor boot times. |
| I2C Address Range | 0x28–0x2B (4 options via ADDR pin) - permits multiple MAX42500ATEDA+T devices on same bus without address conflict. |
Pinout & Package
Package: 16-pin TQFN (3mm × 3mm, exposed pad), RoHS-compliant, thermal resistance θJA = 44.5°C/W (4-layer board).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1–IN4 | Single-ended voltage monitor input | Monitor 0.5–3.6875V rails with ±2.5% to ±10% programmable OV/UV thresholds; factory-trimmed for ±1.1% accuracy. |
| IN5 | Single-ended high-voltage monitor input | Extends monitoring range to 5.5V; ±1% OV/UV accuracy for >1.0V set points across full temperature range. |
| IN6P / IN7P | Differential voltage monitor positive input | Paired with INM to reject ground bounce; supports dynamic voltage scaling (DVS) with independent OV/UV comparators. |
| INM | Shared remote ground-sense reference | Must be routed separately near IN6P/IN7P connection point to eliminate PCB ground offset errors in DVS applications. |
| EN0 / EN1 | Power-state transition detectors | EN0 detects OFF↔ON; EN1 detects SLEEP↔ON; both trigger FPSR timestamps and support configurable power-sequence logic. |
| RESET | Open-drain fault output | Programmable active-low signal mapped to any combination of monitor faults; requires external pull-up to logic supply. |
| ADDR | I2C address configuration | Sets LSBs of 7-bit I2C address (0x28–0x2B); accepts direct GND/VDD or 100kΩ pullup/pulldown for flexible bus topology. |
| SDA / SCL | I2C bidirectional data/clock | Supports 1.1MHz operation with built-in spike suppression (50–60ns); SDA is open-drain; SCL is input-only. |
Key Features
| Feature | Design Value |
|---|---|
| IEC 61508 SIL 3 certification | Validated for use in safety functions up to SIL 3; includes internal redundancy, CRC-8 on I2C, and fault recording. |
| Flexible Power Sequence Recorder (FPSR) | Separately logs power-up/down timestamps per enabled rail; adjustable tick rate (25–3200μs); retains data until manually cleared. |
| Challenge/response watchdog | LFSR-based key generation (x⁸+x⁶+x⁵+x⁴+1); extended first-update window avoids false timeout during MCU boot. |
| Differential DVS monitoring | IN6P/IN7P + INM enable real-time tracking of dynamically scaled SoC supplies without loss of UV/OV coverage during ramp. |
| OTP configuration with ECC | Factory-programmed settings stored in one-time-programmable memory with error-correcting code and reload capability. |
Applications
| Industrial Process Control | Robotics Power Management |
|---|---|
|
Use Scenario: Monitoring multiple DC power rails (24V, 12V, 5V, 3.3V, 1.8V) in PLC backplanes and distributed I/O modules. IC Role / Device Role / Timing Role: Centralized power supervisor detecting undervoltage/overvoltage faults, logging sequence violations, and asserting RESET to halt unsafe operation. Use Value: Eliminates discrete supervisor ICs and reduces BOM count by 70%; SIL 3 certification satisfies functional safety requirements for Category 4 machinery. |
Use Scenario: Supervising motor drive inverters, servo controllers, and vision processing units in collaborative robots. IC Role / Device Role / Timing Role: Simultaneous monitoring of main bus, gate driver, FPGA core, and AI accelerator rails with DVS-aware tracking on IN6P/IN7P. Use Value: Enables safe dynamic voltage scaling of compute rails while maintaining continuous fault coverage - prevents brownout-induced motion errors. |
| Remote Sensor Modules | MCU/SoC Monitoring |
|
Use Scenario: Battery-powered wireless sensor nodes deployed in hazardous areas requiring long-term reliability and fault diagnostics. IC Role / Device Role / Timing Role: Low-quiescent-current (150μA) supervisor with power-down mode (8μA), FPSR for field-deployed startup validation, and I2C-accessible fault logs. Use Value: Extends battery life while providing traceable power-event history for predictive maintenance and root-cause analysis. |
Use Scenario: Monitoring power integrity of ARM Cortex-M7, RISC-V SoCs, or Xilinx Zynq devices in edge AI gateways. IC Role / Device Role / Timing Role: Challenge/response watchdog with extended first window prevents false resets during multi-stage bootloader execution. Use Value: Guarantees deterministic reset behavior even with variable boot times - critical for OTA update reliability and fail-safe recovery. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar power system monitor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX16056ATL+ | 5-input, non-SIL-certified, no FPSR or DVS support; ±1.5% OV/UV accuracy over –40°C to +85°C only. | Limited to commercial-temperature, non-safety-critical applications; lacks differential inputs and I2C configurability. | Select when cost sensitivity outweighs safety certification and advanced sequencing needs. |
| TPS389033DSER | 3-input, no I2C interface, fixed thresholds only; ±0.5% accuracy but no programmable OV/UV or watchdog. | Suitable only for basic reset generation on primary supply; no voltage rail logging, sequencing, or DVS capability. | Choose for simple, ultra-low-power (2.5μA) reset IC where intelligence and flexibility are unnecessary. |
Compared with MAX16056ATL+ and TPS389033DSER, the MAX42500ATEDA+T delivers certified functional safety, full 7-channel programmability, differential DVS tracking, and integrated FPSR - making it uniquely suited for complex industrial SoC supervision where reliability, diagnostics, and adaptability are mandatory.
Availability
MAX42500ATEDA+T is available at Aetrix Electronics and suitable for industrial process control, robotics, remote sensor modules, and MCU/SoC monitoring requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for MAX42500ATEDA+T 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
Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets since 1965.
The MAX42500 family was designed specifically for SIL 3-certified power supervision in harsh industrial environments, integrating voltage monitoring, sequencing validation, and watchdog functionality into a single compact SoC to replace multi-IC solutions.
FAQ
What is the operating temperature range of the MAX42500ATEDA+T?
The MAX42500ATEDA+T operates from –40°C to +125°C and maintains ±1.3% OV/UV threshold accuracy across this full range. This specification is validated per IEC 61508 SIL 3 requirements and enables deployment in engine compartments, factory floors, and outdoor industrial enclosures without derating.
How does the MAX42500ATEDA+T support Dynamic Voltage Scaling (DVS)?
The MAX42500ATEDA+T supports DVS through its two differential inputs (IN6P and IN7P) with shared remote ground-sense pin (INM). Each channel has independent OV and UV comparators that can be reconfigured via I2C before and after a voltage ramp - enabling continuous fault coverage during SoC supply transitions without false triggers.
Does the MAX42500ATEDA+T include built-in safety certification?
Yes, the MAX42500ATEDA+T is IEC 61508 SIL 3 certified. Certification covers its integrated voltage monitoring, FPSR, challenge/response watchdog, CRC-8 I2C protection, OTP configuration with ECC, and fault-recording architecture - eliminating need for external safety audit of the supervisory function.
What package type and footprint does the MAX42500ATEDA+T use?
The MAX42500ATEDA+T uses a 16-pin TQFN package measuring 3mm × 3mm with exposed thermal pad (package code T1633+5C). Land pattern number 90-0032 applies; thermal resistance is θJA = 44.5°C/W on a four-layer board per JEDEC JESD51-7.
Can the MAX42500ATEDA+T monitor more than five voltage rails?
Yes, the MAX42500ATEDA+T monitors up to seven voltage rails: five single-ended inputs (IN1–IN5) and two differential inputs (IN6P/IN7P referenced to INM). IN1–IN4 cover 0.5–3.6875V; IN5 extends to 5.5V; IN6P/IN7P operate differentially relative to INM across 0.5–1.775V.
MAX42500ATEDA+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 16-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- Type:
- Power Supply Monitor
- Number of Voltages Monitored:
- 7
- Voltage - Threshold:
- Adjustable/Selectable
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TQFN (3x3)
MAX42500ATEDA+T FAQ
1.How can I place an order for MAX42500ATEDA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX42500ATEDA+T 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 MAX42500ATEDA+T reliable?
The price and inventory of MAX42500ATEDA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX42500ATEDA+T is usually 5 days.
3.What payment methods are accepted for MAX42500ATEDA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX42500ATEDA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX42500ATEDA+T?
MAX42500ATEDA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX42500ATEDA+T 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 MAX42500ATEDA+T?
For technical support, including MAX42500ATEDA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX42500ATEDA+T requirements.
6.How does Aetrix verify that MAX42500ATEDA+T is sourced from the original manufacturer or authorized distributors?
All MAX42500ATEDA+T 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 MAX42500ATEDA+T meets industry standards.
7.What is the process for return or replacement of MAX42500ATEDA+T?
All MAX42500ATEDA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX42500ATEDA+T, 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 MAX42500ATEDA+T part is unused and in its original packaging.
Return procedure for MAX42500ATEDA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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