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Analog Devices Inc./Maxim Integrated MAX810ZEXR+T10
- Part No.:
- MAX810ZEXR+T10
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
MAX810ZEXR+T10.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,044
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Product details
Overview
MAX810ZEXR+T10 from Maxim Integrated is a precision 3-pin microprocessor supervisory circuit with active-high push-pull RESET output, designed to monitor +2.5V power supplies. It asserts reset when VCC falls below 2.32V (±30ppm/°C tempco), holds reset for ≥140ms after VCC recovers, operates down to VCC = 1V, draws only 17µA typical supply current, and is qualified for automotive AEC-Q100 applications in SC70-3 package.
For engineers reviewing the MAX810ZEXR+T10 datasheet, MAX810ZEXR+T10 pinout, MAX810ZEXR+T10 application, or MAX810ZEXR+T10 equivalent, this page delivers verified reset threshold accuracy, temperature-stable timeout behavior, guaranteed logic-state validity at low VCC, and direct compatibility with battery-powered and automotive microcontroller systems requiring deterministic power-on reset sequencing.
Technical Context
The MAX810ZEXR+T10 implements a precision bandgap-based voltage comparator with hysteresis to detect VCC droop below its 2.32V nominal reset threshold. Its internal timing circuit generates a minimum 140ms reset pulse width after VCC rises above threshold, with timeout variation bounded by ±100ms over -40°C to +125°C.
This device uses a push-pull output stage delivering active-high RESET, eliminating external pullup components required by open-drain variants. Its reset assertion remains valid down to VCC = 1V, and it exhibits immunity to transients ≤20µs at 100mV overdrive - critical for noisy automotive and portable power rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.32V (nominal), ±3% over -40°C to +125°C - ensures reliable detection of +2.5V supply brownout before system instability |
| Reset Timeout | ≥140ms min after VCC recovery - guarantees sufficient μP initialization time across full temperature range |
| Supply Current | 17µA typical at VCC = 2.5V, TA = -40°C to +85°C - enables multi-year operation in coin-cell–powered devices |
| Output Type | Active-high push-pull - drives RESET directly without external resistor, compatible with standard CMOS inputs |
| VCC Operating Range | 1.2V to 5.5V - supports operation during deep brownout while maintaining valid reset state down to 1V |
| Temperature Range | -40°C to +125°C - certified for under-hood automotive and industrial embedded environments |
| Reset Tempco | 30ppm/°C - minimizes threshold drift across temperature, enabling stable trip point in wide-ambient designs |
Pinout & Package
MAX810ZEXR+T10 is housed in a 3-pin SC70-3 package (2.0mm × 2.1mm × 0.9mm), optimized for space-constrained PCB layouts and reflow-compatible with standard lead-free processes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 GND | Ground reference | Return path for internal comparator and output driver; must be low-impedance connection to system ground plane |
| 2 RESET | Active-high reset output | Push-pull CMOS output asserted high during reset; sinks 1.2mA min when low, sources 150µA min when high |
| 3 VCC | Supply input | Monitored power rail input; powers internal circuitry and defines reset threshold reference point |
Key Features
| Feature | Design Value |
|---|---|
| Precision 2.32V reset threshold | Guaranteed ±3% tolerance over -40°C to +125°C enables accurate +2.5V supply monitoring without calibration |
| 140ms minimum reset timeout | Ensures μP completes internal POR sequence before release, even under slow-ramp or noisy power-up conditions |
| Valid reset down to VCC = 1V | Maintains defined logic state through deep brownout, preventing spurious release during partial power collapse |
| 17µA typical supply current | Reduces quiescent load on battery-backed or energy-harvested systems without sacrificing reset reliability |
| AEC-Q100 qualified | Validated for automotive applications including engine control, body electronics, and ADAS subsystems |
Applications
| Automotive Engine Control Unit (ECU) | Portable Medical Monitor |
|---|---|
Use Scenario: Monitors 2.5V sensor reference rail in engine ECU exposed to under-hood temperatures up to +125°C and load-dump transients. IC Role / Device Role / Timing Role: Active-high reset supervisor asserting controlled startup after cold crank or battery recovery. Use Value: Prevents firmware execution on marginal voltage; 30ppm/°C tempco maintains trip point stability across thermal cycling. |
Use Scenario: Powers on a low-power ARM Cortex-M0+ MCU in a handheld glucose meter using a CR2032 coin cell. IC Role / Device Role / Timing Role: Ensures deterministic boot sequence during shallow discharge where VCC decays from 3.0V to 2.2V. Use Value: 17µA supply current extends battery life; valid reset down to 1V avoids premature release during voltage sag. |
| Industrial PLC I/O Module | Smart Energy Meter |
Use Scenario: Supervises isolated 2.5V digital supply in DIN-rail mounted programmable logic controller with wide ambient range. IC Role / Device Role / Timing Role: Generates clean, glitch-immune reset signal immune to 20µs transients on noisy factory floor power rails. Use Value: Eliminates need for RC network filtering; push-pull output interfaces directly with FPGA configuration logic. |
Use Scenario: Controls startup of metrology SoC in ANSI C12.22-compliant electricity meter operating from 2.5V LDO. IC Role / Device Role / Timing Role: Provides tamper-resistant power-on reset with guaranteed 140ms hold time for secure boot ROM validation. Use Value: AEC-Q100 qualification supports long-life field deployment; SC70-3 footprint saves space on revenue-grade meter PCB. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset supervision applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX809ZEXR+T | Same 2.32V threshold and SC70-3 package, but active-low push-pull output | Requires inverted reset logic on host µP; unsuitable for systems expecting active-high assertion | Select when host MCU reset pin is active-low and board layout cannot accommodate level-shifting |
| TPS3808G12DBVR | 2.5V threshold (not 2.32V); 350ms min timeout; 2.5µA supply current; SOT23-3 package | Better ultra-low-power performance but less precise match for +2.5V rail margin; different pinout | Prefer for battery lifetime-critical designs where 2.5V threshold suffices and longer timeout is acceptable |
Compared with MAX810ZEXR+T10, MAX809ZEXR+T offers identical threshold and package but inverted logic, while TPS3808G12DBVR trades threshold accuracy and pin compatibility for lower quiescent current and extended timeout - requiring PCB redesign and firmware logic review.
Availability
MAX810ZEXR+T10 is available at Aetrix Electronics and suitable for automotive engine control units, portable medical monitors, industrial PLC modules, smart energy meters, and battery-powered IoT edge nodes requiring stable component supply with AEC-Q100 assurance and long-term lifecycle support.
Supply support for MAX810ZEXR+T10 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 demanding industrial, automotive, and computing applications.
The MAX810 series belongs to Maxim's microprocessor supervisory product line, engineered specifically for deterministic power-on reset generation in safety-critical and low-power embedded systems operating across extreme temperature ranges.
FAQ
What is the exact reset threshold voltage of the MAX810ZEXR+T10 and how stable is it over temperature?
The MAX810ZEXR+T10 has a nominal reset threshold of 2.32V, guaranteed between 2.25V and 2.38V over the full -40°C to +125°C operating range. Its temperature coefficient is tightly controlled at 30ppm/°C, meaning threshold drift is limited to ±0.0037V across the entire temperature span - ensuring consistent brownout detection in automotive and industrial environments where supply margins are tight.
Does the MAX810ZEXR+T10 require an external pullup resistor on the RESET pin?
No, the MAX810ZEXR+T10 does not require an external pullup resistor because it features a push-pull output stage. Its active-high RESET pin drives high (VOH ≥ 0.8×VCC) and low (VOL ≤ 0.3V) directly, eliminating external components needed by open-drain variants like the MAX803. This simplifies layout and improves noise immunity in compact PCB designs.
Can the MAX810ZEXR+T10 operate reliably when VCC drops below 2.0V?
Yes, the MAX810ZEXR+T10 guarantees correct RESET logic state down to VCC = 1.0V. Below that, the output becomes undefined, but the device continues to monitor VCC and will assert RESET again if VCC recovers above threshold. This behavior is explicitly characterized and validated - making MAX810ZEXR+T10 suitable for applications experiencing deep brownouts, such as automotive stop-start systems or battery-depleted portable devices.
What is the minimum reset pulse width guaranteed by the MAX810ZEXR+T10 across its full temperature range?
The MAX810ZEXR+T10 guarantees a minimum reset pulse width of 140ms after VCC rises above the reset threshold, across its full specified temperature range of -40°C to +125°C. At elevated temperatures (+85°C to +125°C), the maximum timeout is 840ms, providing ample margin for slow-ramping or thermally stressed power supplies in automotive and industrial deployments.
Is the MAX810ZEXR+T10 pin-compatible with other members of the MAX803/MAX809/MAX810 family?
Yes, the MAX810ZEXR+T10 shares identical SC70-3 pinout (GND, RESET, VCC) with all SC70-packaged MAX803/MAX809/MAX810 variants, including MAX803ZEXR+T and MAX809ZEXR+T. However, output polarity differs: MAX810ZEXR+T provides active-high RESET, while MAX809ZEXR+T is active-low and MAX803ZEXR+T is open-drain - requiring logic-level verification before substitution.
MAX810ZEXR+T10 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
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-3
MAX810ZEXR+T10 FAQ
1.How can I place an order for MAX810ZEXR+T10 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX810ZEXR+T10 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+T10 reliable?
The price and inventory of MAX810ZEXR+T10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX810ZEXR+T10 is usually 5 days.
3.What payment methods are accepted for MAX810ZEXR+T10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX810ZEXR+T10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX810ZEXR+T10?
MAX810ZEXR+T10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX810ZEXR+T10 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+T10?
For technical support, including MAX810ZEXR+T10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX810ZEXR+T10 requirements.
6.How does Aetrix verify that MAX810ZEXR+T10 is sourced from the original manufacturer or authorized distributors?
All MAX810ZEXR+T10 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+T10 meets industry standards.
7.What is the process for return or replacement of MAX810ZEXR+T10?
All MAX810ZEXR+T10 units undergo pre-shipment inspection (PSI). If there is an issue with MAX810ZEXR+T10, 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+T10 part is unused and in its original packaging.
Return procedure for MAX810ZEXR+T10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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