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Analog Devices Inc./Maxim Integrated MAX810TEXR+T
- Part No.:
- MAX810TEXR+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
MAX810TEXR+T.pdf
- Description:
- IC RESET CIRC MPU SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:87,500
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Product details
Overview
MAX810TEXR+T from Maxim Integrated is a 3-pin SC70-packaged microprocessor supervisory circuit with push-pull active-high RESET output, designed to monitor +3.0V supply rails. It asserts reset when VCC falls below 3.08V (typ), holds reset for ≥140ms after VCC recovers, and guarantees valid reset operation down to VCC = +1V. Used in automotive and industrial embedded systems requiring AEC-Q100-qualified power monitoring.
For engineers reviewing the MAX810TEXR+T datasheet, MAX810TEXR+T pinout, MAX810TEXR+T application, or MAX810TEXR+T equivalent, this page delivers verified electrical parameters, thermal performance across –40°C to +125°C, SC70 package mechanical data, and validated alternatives for +3.0V reset supervision in safety-critical power-up sequencing.
Technical Context
The MAX810TEXR+T implements a precision voltage comparator with 30ppm/°C tempco to detect VCC drops below its 3.08V threshold, triggering an active-high push-pull RESET signal. Its internal timing circuit ensures minimum 140ms reset pulse width after VCC recovery, independent of external components.
Designed for high-transient immunity, it ignores negative-going VCC glitches ≤20µs at 100mV overdrive and operates with supply current as low as 17µA (typ) at +25°C and VCC = 3.0V. The device remains functional with VCC as low as +1V, guaranteeing deterministic logic state at RESET output.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 3.08V (typ) at +25°C; ensures reliable reset assertion before +3.0V supply drops to 3.00V under full temperature range. |
| Reset Timeout | ≥140ms (min); provides sufficient hold time for microprocessor initialization during power-up/brownout recovery. |
| Supply Current | 17µA (typ) at +25°C, VCC = 3.0V; enables use in battery-powered systems without significant quiescent load. |
| Operating Temp Range | –40°C to +125°C; qualified for under-hood automotive and industrial control applications. |
| Output Type | Push-pull active-high RESET; drives CMOS inputs directly without pullup resistor, simplifying PCB layout. |
| VCC Validity Limit | RESET guaranteed valid down to VCC = +1V; prevents floating reset states during deep brownout conditions. |
| Reset Tempco | 30ppm/°C; maintains tight threshold stability across temperature, reducing risk of spurious resets. |
Pinout & Package
MAX810TEXR+T is housed in a 3-pin SC70 package (package code X3+2), with 0.65mm pitch, 1.25mm × 0.85mm footprint, and 0.95mm max height. Pin 1 = GND, Pin 2 = RESET, Pin 3 = VCC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - GND | Ground reference | Return path for internal comparator and output driver; must be connected to system ground plane for noise immunity. |
| 2 - RESET | Active-high push-pull output | Drives high (VOH ≥ 0.8×VCC) when VCC ≥ threshold; sinks current (VOL ≤ 0.4V at 3.2mA) when VCC < threshold. |
| 3 - VCC | Supply input | Monitored +3.0V rail input; accepts 1.2V to 5.5V range but calibrated for 3.0V nominal operation. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 qualified | Validated for automotive applications per stress test requirements, supporting under-hood deployment. |
| No external components required | Integrates precision reference, comparator, timer, and output driver-eliminates discrete R/C networks and calibration. |
| +3.0V-specific threshold | 3.08V (typ) reset point tightly aligned to 3.0V supply tolerance, avoiding false triggers near nominal voltage. |
| Transient immunity | Immune to VCC glitches ≤20µs at 100mV overdrive, preventing spurious resets in noisy power environments. |
| SC70 package | 1.25mm × 0.85mm footprint enables compact placement on space-constrained PCBs, including automotive ECUs. |
Applications
| Automotive Engine Control Unit (ECU) | Industrial PLC I/O Module |
|---|---|
Use Scenario: Monitors 3.0V domain powering MCU and CAN transceiver in engine bay environment subject to wide temperature swings and load dump transients. IC Role / Device Role / Timing Role: Supervisory IC asserting active-high RESET to hold MCU in reset until 3.0V rail stabilizes post-ignition. Use Value: Prevents corrupted firmware execution during cold cranking (VCC dip to ~2.8V) by holding reset ≥140ms after recovery to 3.08V. |
Use Scenario: Ensures deterministic startup of FPGA-based digital I/O controller powered from isolated 3.0V DC-DC converter. IC Role / Device Role / Timing Role: Power-on reset generator with precise 3.08V threshold and guaranteed operation down to VCC = +1V. Use Value: Eliminates need for external RC network while maintaining reset validity during brownout events common in factory floor power distribution. |
| Medical Infusion Pump Controller | Smart Energy Meter MCU Subsystem |
Use Scenario: Provides fail-safe reset for ARM Cortex-M4 MCU managing motor control and sensor acquisition in battery-backed medical device. IC Role / Device Role / Timing Role: Active-high reset supervisor ensuring MCU remains held until 3.0V rail reaches stable operating point after battery switchover. Use Value: 17µA supply current extends battery life; SC70 package enables integration into compact, sealed enclosure with minimal board area. |
Use Scenario: Supervises 3.0V supply feeding metrology ADC and secure bootloader in utility-grade electricity meter exposed to outdoor temperature extremes. IC Role / Device Role / Timing Role: High-accuracy reset monitor with 30ppm/°C tempco to maintain threshold stability from –40°C to +85°C ambient. Use Value: Prevents premature release from reset during winter startup when 3.0V rail rises slowly, avoiding invalid meter readings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset supervision applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX810TEUR+T | SOT23-3 package; rated for –40°C to +105°C (vs. SC70's +125°C); identical 3.08V threshold and active-high push-pull output. | Targeted at commercial/industrial applications where extended temperature is not required; smaller thermal mass than SC70. | Select when +105°C max ambient suffices and SOT23 footprint compatibility is needed. |
| TPS3808G30DBVR | Texas Instruments part; 3.0V threshold (±0.5%), 200ms min reset timeout, 1.4µA IQ, SOT23-6 package with manual reset input. | Includes manual reset pin and lower quiescent current, but requires additional PCB routing and lacks AEC-Q100 qualification. | Choose if ultra-low power or manual reset capability is prioritized over automotive qualification and SC70 size. |
Compared with MAX810TEXR+T, MAX810TEUR+T offers identical electrical behavior in a thermally less robust but more widely adopted SOT23 package, while TPS3808G30DBVR trades AEC-Q100 compliance and compact SC70 size for lower IQ and added functionality-making MAX810TEXR+T optimal for space-constrained, high-reliability automotive designs.
Availability
MAX810TEXR+T is available at Aetrix Electronics and suitable for automotive ECU development, industrial PLC design, and medical device manufacturing requiring stable component supply, AEC-Q100 compliance, and SC70 footprint consistency.
Supply support for MAX810TEXR+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) is a semiconductor company specializing in analog, mixed-signal, and power management ICs for industrial, automotive, and communications markets.
The MAX810 series belongs to Maxim's microprocessor supervisory product line, engineered specifically for precision voltage monitoring and deterministic reset generation in safety-critical embedded systems.
FAQ
What is the exact reset threshold voltage of the MAX810TEXR+T?
The MAX810TEXR+T has a typical reset threshold of 3.08V at +25°C, with guaranteed limits of 3.00V (min) to 3.15V (max) over the –40°C to +85°C range and 2.92V to 3.23V over –40°C to +125°C. This 3.0V-specific threshold ensures reliable detection of brownout conditions on nominal 3.0V supplies without false triggering near nominal voltage.
Does the MAX810TEXR+T require an external pullup resistor on the RESET pin?
No, the MAX810TEXR+T features a push-pull active-high RESET output and does not require an external pullup resistor. It actively drives high (VOH ≥ 0.8×VCC) when VCC is above threshold and low (VOL ≤ 0.4V at 3.2mA sink) when VCC is below threshold-enabling direct interface with standard CMOS inputs without additional components.
Is the MAX810TEXR+T qualified for automotive applications?
Yes, the MAX810TEXR+T is AEC-Q100 qualified and specified for operation from –40°C to +125°C. Its SC70 package, precision 3.08V threshold, and guaranteed reset validity down to VCC = +1V make it suitable for under-hood automotive applications including engine control units and body electronics modules.
What is the minimum reset pulse width guaranteed by the MAX810TEXR+T?
The MAX810TEXR+T guarantees a minimum reset pulse width of 140ms after VCC rises above the reset threshold. This timeout is internally generated and fully specified over temperature, ensuring sufficient hold time for microprocessor initialization regardless of supply ramp rate or external component tolerances.
How does the MAX810TEXR+T handle fast transients on the VCC supply line?
The MAX810TEXR+T is designed to ignore fast negative-going VCC transients: at 100mV overdrive (i.e., VCC dipping 100mV below threshold), it tolerates glitches up to 20µs without asserting reset. This transient immunity is achieved via internal comparator hysteresis and filtering, making it robust in electrically noisy environments like automotive power domains.
MAX810TEXR+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 3.08V
- 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
MAX810TEXR+T FAQ
1.How can I place an order for MAX810TEXR+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX810TEXR+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 MAX810TEXR+T reliable?
The price and inventory of MAX810TEXR+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX810TEXR+T is usually 5 days.
3.What payment methods are accepted for MAX810TEXR+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX810TEXR+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX810TEXR+T?
MAX810TEXR+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX810TEXR+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 MAX810TEXR+T?
For technical support, including MAX810TEXR+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX810TEXR+T requirements.
6.How does Aetrix verify that MAX810TEXR+T is sourced from the original manufacturer or authorized distributors?
All MAX810TEXR+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 MAX810TEXR+T meets industry standards.
7.What is the process for return or replacement of MAX810TEXR+T?
All MAX810TEXR+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX810TEXR+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 MAX810TEXR+T part is unused and in its original packaging.
Return procedure for MAX810TEXR+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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