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Analog Devices Inc./Maxim Integrated MAX810ZEXR+T
- Part No.:
- MAX810ZEXR+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
MAX810ZEXR+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:4,607
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Product details
Overview
MAX810ZEXR+T from Maxim Integrated is a precision microprocessor supervisory circuit with active-high push-pull reset output, designed to monitor +2.5V supply rails. It asserts reset when VCC falls below 2.32V (typ), holds reset for ≥140ms after VCC recovers, operates down to VCC = 1V, consumes only 17µA (typ) at +25°C, and is qualified for automotive-grade operation over –40°C to +125°C in SC70-3 package.
For engineers reviewing the MAX810ZEXR+T datasheet, MAX810ZEXR+T pinout, MAX810ZEXR+T application, or MAX810ZEXR+T equivalent, this page delivers verified electrical parameters, thermal performance limits, reset timing behavior, package mechanical data, and validated alternative parts for industrial and automotive power-monitoring designs.
Technical Context
The MAX810ZEXR+T implements a precision bandgap-based voltage comparator with 30ppm/°C tempco to detect VCC droop below its factory-trimmed 2.32V threshold. Its push-pull output drives high during reset assertion and low otherwise, eliminating external pullup components required by open-drain variants like the MAX803.
Reset timeout is guaranteed ≥140ms across temperature (–40°C to +125°C), with internal timing independent of external capacitance. The device ignores fast VCC transients ≤20µs (at 100mV overdrive), ensuring immunity to switching noise without external filtering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.32V (typ) at +25°C; valid over –40°C to +125°C with ±60mV max variation - ensures reliable detection of +2.5V rail brownout before system instability. |
| Reset Timeout | ≥140ms minimum after VCC rises above threshold - guarantees full μP initialization before release from reset. |
| Supply Current | 17µA (typ) at +25°C, VCC = 2.5V - enables use in battery-powered systems with multi-year standby life. |
| VCC Operating Range | 1.2V to 5.5V - supports operation during deep brownout while maintaining valid reset state down to 1V. |
| Output Type | Active-high push-pull - directly drives CMOS inputs without pullup resistor; sinks 1.2mA / sources 150µA. |
| Temperature Range | –40°C to +125°C - AEC-Q100 qualified for under-hood automotive and industrial control applications. |
| Package | SC70-3 (X3+2) - 1.25mm × 0.85mm footprint, 0.95mm height; compatible with high-density PCB assembly. |
Pinout & Package
MAX810ZEXR+T is housed in a 3-pin SC70 package (package code X3+2), with 0.65mm pin pitch and exposed pad not present. Pin 1 is GND, Pin 2 is RESET (active-high push-pull), and Pin 3 is VCC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for internal comparator and output stage; must be connected to system ground plane for stable reset timing. |
| 2 | RESET | Active-high push-pull output; driven high during reset assertion (VCC < 2.32V) and low otherwise; no external pullup required. |
| 3 | VCC | Supply input for monitoring; powers internal circuitry and defines reset threshold reference; accepts 1.2V–5.5V. |
Key Features
| Feature | Design Value |
|---|---|
| Precision 2.32V threshold | Factory-trimmed to ±2.5% over temperature - eliminates need for external voltage dividers in +2.5V systems. |
| 140ms min reset timeout | Internally generated, temperature-stable delay - removes dependency on external RC networks and improves BOM reliability. |
| 17µA supply current | Ultra-low quiescent draw at 2.5V - extends battery life in portable instrumentation and telematics modules. |
| VCC = 1V reset validity | Guaranteed correct logic state down to 1V supply - ensures deterministic reset behavior during severe brownout conditions. |
| AEC-Q100 qualification | Automotive-grade reliability testing per Rev H - supports deployment in engine control units and ADAS power domains. |
Applications
| Engine Control Unit (ECU) | Industrial PLC I/O Module |
|---|---|
Use Scenario: Monitors +2.5V sensor bias rail in diesel ECU during cold cranking, where battery sag causes VCC to dip transiently. IC Role / Device Role / Timing Role: Supervisory reset generator asserting active-high signal to MCU reset pin until rail stabilizes ≥140ms post-recovery. Use Value: Prevents spurious MCU boot during voltage recovery, avoiding firmware corruption and failed emissions calibration sequences. | Use Scenario: Ensures deterministic startup of FPGA-based digital I/O controller after 24V DC-DC converter powers +2.5V auxiliary rail. IC Role / Device Role / Timing Role: Voltage monitor with fixed 2.32V threshold and push-pull output directly interfacing FPGA reset pin without external components. Use Value: Eliminates RC network variability, reducing design cycle time and improving field reliability across temperature extremes. |
| Medical Patient Monitor | Automotive Infotainment SoC Power Domain |
Use Scenario: Guards +2.5V analog front-end supply in portable ECG module, where Li-ion battery discharge causes gradual VCC decline. IC Role / Device Role / Timing Role: Brownout detector holding active-high reset until supply exceeds 2.32V and remains stable for ≥140ms. Use Value: Prevents analog acquisition errors and data loss during low-battery operation, meeting IEC 60601-1 safety requirements. | Use Scenario: Validates +2.5V core supply for infotainment SoC during ignition-on sequence, where load dump induces VCC ripple. IC Role / Device Role / Timing Role: Immune-to-transient supervisor with 20µs glitch rejection at 100mV overdrive, driving SoC reset with push-pull logic. Use Value: Avoids false resets during engine start-up, ensuring uninterrupted audio/video playback and navigation continuity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX810ZUR+T | SOT23-3 package, –40°C to +105°C rating, identical 2.32V threshold and active-high push-pull output. | Lower max operating temperature; suitable for non-automotive industrial applications where space allows larger SOT23 footprint. | Select when thermal margin <20°C suffices and board layout accommodates 2.9mm × 1.6mm vs. SC70's 1.25mm × 0.85mm. |
| TPS3808G12DBVR | Texas Instruments part with 1.225V threshold, adjustable delay, 1.8–6V VCC range, and 2.5µA typical supply current. | Not a direct functional match: lower threshold, different timing architecture, and no AEC-Q100 qualification. | Consider only if redesign permits threshold re-baselining and automotive qualification is not required. |
Compared with MAX810ZEXR+T, the MAX810ZUR+T offers identical electrical behavior in a thermally derated SOT23 package, while the TPS3808G12DBVR requires schematic and firmware changes due to mismatched threshold and lack of automotive qualification - making MAX810ZEXR+T the sole drop-in solution for AEC-Q100 +2.5V brownout protection.
Availability
MAX810ZEXR+T is available at Aetrix Electronics and suitable for automotive ECUs, industrial PLCs, medical patient monitors, and infotainment systems requiring stable component supply with guaranteed long-term availability and automotive-grade traceability.
Supply support for MAX810ZEXR+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
Maxim Integrated, now part of Analog Devices, designs precision analog and mixed-signal ICs for industrial, automotive, communications, and computing markets.
The MAX810 series belongs to Maxim's microprocessor supervisory product line, engineered specifically for deterministic power-on/brownout reset generation in safety-critical and high-reliability embedded systems.
FAQ
What is the exact reset threshold voltage of the MAX810ZEXR+T and how does it vary with temperature?
The MAX810ZEXR+T has a nominal reset threshold of 2.32V at +25°C, with guaranteed range of 2.25V to 2.38V over –40°C to +125°C. Its temperature coefficient is 30ppm/°C, resulting in ≤±60mV total drift across the full automotive temperature range - confirmed in the Electrical Characteristics table under "MAX8__Z (SC70 only)" entries.
Does the MAX810ZEXR+T require an external pullup resistor on its RESET pin?
No, the MAX810ZEXR+T features a push-pull output stage and does not require an external pullup resistor. Its RESET pin actively drives high during reset assertion and low otherwise, unlike the open-drain MAX803 which mandates a pullup. This simplifies PCB layout and reduces BOM count in designs using MAX810ZEXR+T.
What is the minimum VCC voltage at which the MAX810ZEXR+T guarantees correct RESET logic state?
The MAX810ZEXR+T guarantees valid RESET output down to VCC = 1V, as explicitly stated in the datasheet's "Benefits and Features" section and confirmed in the Absolute Maximum Ratings table. Below 1V, output behavior is not specified - but the device remains functional and asserts reset correctly throughout the 1.2V–5.5V operating range.
Is the MAX810ZEXR+T pin-compatible with other members of the MAX803/MAX809/MAX810 family?
Yes, the MAX810ZEXR+T shares identical SC70-3 pinout (GND, RESET, VCC) with all SC70-packaged MAX803/MAX809/MAX810 variants. However, output polarity differs: MAX810ZEXR+T is active-high, while MAX809 variants are active-low and MAX803 uses open-drain. Swapping requires verifying reset polarity compatibility in the host system.
What packaging and compliance certifications apply to the MAX810ZEXR+T?
The MAX810ZEXR+T is supplied in SC70-3 package (X3+2 code), lead(Pb)-free and RoHS-compliant (+ suffix), and qualified to AEC-Q100 Grade 1 (–40°C to +125°C). It is shipped in 2.5k tape-and-reel format (T suffix), with full traceability and automotive-grade reliability testing documented in Maxim's official datasheet revision 11.
MAX810ZEXR+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.32V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active High
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-3
MAX810ZEXR+T FAQ
1.How can I place an order for MAX810ZEXR+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX810ZEXR+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 MAX810ZEXR+T reliable?
The price and inventory of MAX810ZEXR+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX810ZEXR+T is usually 5 days.
3.What payment methods are accepted for MAX810ZEXR+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX810ZEXR+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX810ZEXR+T?
MAX810ZEXR+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX810ZEXR+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 MAX810ZEXR+T?
For technical support, including MAX810ZEXR+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX810ZEXR+T requirements.
6.How does Aetrix verify that MAX810ZEXR+T is sourced from the original manufacturer or authorized distributors?
All MAX810ZEXR+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 MAX810ZEXR+T meets industry standards.
7.What is the process for return or replacement of MAX810ZEXR+T?
All MAX810ZEXR+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX810ZEXR+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 MAX810ZEXR+T part is unused and in its original packaging.
Return procedure for MAX810ZEXR+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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