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Analog Devices Inc./Maxim Integrated MAX810REUR+
- Part No.:
- MAX810REUR+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
MAX810REUR+.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,553
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Product details
Overview
MAX810REUR+ from Maxim Integrated is a 3-pin SOT23-packaged microprocessor supervisory circuit with active-high push-pull RESET output, precision 2.63V reset threshold (±1.5% over -40°C to +105°C), 140ms minimum reset timeout, 12μA supply current, and guaranteed operation down to VCC = 1V. It monitors +2.5V/+3.0V/+3.3V/+5V power rails in portable battery-powered systems requiring reliable brownout detection.
For engineers reviewing the MAX810REUR+ datasheet, MAX810REUR+ pinout, MAX810REUR+ application, or MAX810REUR+ equivalent, this page delivers verified functional identity, confirmed SOT23-3 package mapping, validated active-high reset behavior, exact reset threshold tolerance, and real-world transient immunity specs - all critical for μP reset timing validation and BOM selection in automotive-qualified embedded designs.
Technical Context
The MAX810REUR+ implements a precision bandgap-based voltage comparator with internal hysteresis to detect VCC drops below 2.63V, asserting an active-high RESET signal until VCC rises above threshold and remains stable for ≥140ms. Its push-pull output drives CMOS logic directly without external pullup resistors.
Designed for single-supply monitoring, it guarantees valid RESET output down to VCC = 1V and rejects fast transients ≤20μs at 100mV overdrive - enabling robust operation in noisy automotive and industrial environments where supply glitches are common.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.63V ±1.5% (–40°C to +105°C); ensures reset assertion before system logic fails at 2.5V nominal rail |
| Reset Timeout | 140ms min after VCC rise; meets μP power-on initialization timing requirements |
| Supply Current | 12μA typical at +25°C; enables multi-year battery life in always-on portable devices |
| Output Type | Active-high push-pull; eliminates need for external pullup and supports direct CMOS interface |
| VCC Operating Range | 1.2V to 5.5V; supports operation during deep brownout and full-rail startup |
| Reset Valid Down To | VCC = 1V; maintains defined logic state even as supply collapses |
| Transient Immunity | Rejects ≤20μs negative transients at 100mV overdrive; prevents false resets in electrically noisy systems |
Pinout & Package
MAX810REUR+ uses the industry-standard 3-pin SOT23 package (3.0mm × 1.4mm × 1.1mm height), RoHS-compliant and lead-free (+ suffix), rated for –40°C to +105°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 GND | Ground reference | Return path for internal comparator and output stage; must be low-impedance connection to system ground plane |
| 2 RESET | Active-high push-pull output | Drives high (≥0.8×VCC) when VCC ≥2.63V and stable; drives low (≤0.4V) during reset assertion |
| 3 VCC | Supply input | Monitored power rail input; powers internal circuitry and defines reset threshold reference |
Key Features
| Feature | Design Value |
|---|---|
| High-accuracy reset threshold | 2.63V ±1.5% over full temperature range ensures deterministic reset point across automotive thermal cycles |
| Guaranteed reset validity to 1V | Enables fail-safe behavior in deep brownout scenarios where other supervisors lose output control |
| No external components required | Reduces BOM count and PCB area vs. discrete reset solutions; simplifies layout and qualification |
| AEC-Q100 qualified | Validated for automotive applications including engine control modules and ADAS power domains |
| Low 12μA quiescent current | Supports >10-year battery life in IoT sensors and remote monitoring nodes powered by coin cells |
Applications
| Automotive Engine Control Unit (ECU) | Portable Medical Glucose Monitor |
|---|---|
Use Scenario: Monitors 3.0V microcontroller supply during cold cranking when battery voltage dips to 6V and alternator ripple exceeds 200mVpp. IC Role / Device Role / Timing Role: Active-high reset supervisor ensuring μC remains held in reset until 3.0V rail stabilizes post-cranking. Use Value: Prevents corrupted firmware execution during 100ms–500ms voltage sag; AEC-Q100 qualification validates reliability under ISO 16750-2 load dump conditions. | Use Scenario: Powers ARM Cortex-M0+ MCU from CR2032 coin cell; system must survive 1000+ low-power sleep cycles with <1μA average current. IC Role / Device Role / Timing Role: Precision 2.63V reset generator holding MCU in reset until battery reaches operational voltage after wake-up. Use Value: 12μA supply current extends battery life beyond 3 years; 140ms timeout ensures complete RAM initialization before code execution. |
| Industrial PLC I/O Module | Smart Home Smoke Detector |
Use Scenario: Supervises isolated 3.3V digital supply feeding FPGA configuration logic in factory-floor environment with 2kV ESD events and 400V/m RF fields. IC Role / Device Role / Timing Role: Brownout detector asserting active-high RESET to FPGA upon 3.3V rail collapse during surge events. Use Value: Push-pull output drives FPGA's PROG_B pin directly; transient immunity prevents spurious reconfiguration during EMC testing. | Use Scenario: Monitors 2.5V LDO output powering ultra-low-power smoke sensor ASIC and BLE radio in battery-operated unit. IC Role / Device Role / Timing Role: Reset supervisor with 2.63V threshold ensuring ASIC only operates within safe 2.5V ±5% window. Use Value: ±1.5% threshold accuracy avoids premature shutdown at 2.45V while guaranteeing reset before 2.38V logic failure point. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX809REUR+ | Same 2.63V threshold and SOT23 package, but active-low push-pull output | Requires inverted logic interface; incompatible with μPs expecting active-high reset assertion | Select only if host system design expects active-low reset signaling and no level-shifting is feasible |
| TPS3808G12DBVR | 2.63V threshold, active-high output, but 350ms min reset timeout and 2.5μA supply current | Better battery life but longer reset hold time may delay system boot in time-critical applications | Prefer when extended reset duration improves reliability in high-noise environments and slower boot is acceptable |
Compared with MAX809REUR+, MAX810REUR+ provides active-high signaling for direct interface to modern μPs with non-inverted reset inputs, while TPS3808G12DBVR offers lower quiescent current at the cost of longer reset assertion - making MAX810REUR+ optimal for balanced timing, power, and interface compatibility in automotive and portable designs.
Availability
MAX810REUR+ is available at Aetrix Electronics and suitable for automotive engine control units, portable medical devices, industrial PLC modules, and smart home safety systems requiring stable component supply with AEC-Q100 compliance and long-term lifecycle support.
Supply support for MAX810REUR+ 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 consumer applications.
The MAX810REUR+ belongs to Maxim's microprocessor supervisory product line, engineered specifically for deterministic power-on/brownout reset generation in space-constrained, battery-sensitive, and automotive-grade embedded systems.
FAQ
What is the exact reset threshold voltage of the MAX810REUR+ and how tightly is it specified?
The MAX810REUR+ has a nominal reset threshold of 2.63V, specified as ±1.5% over the full operating temperature range of –40°C to +105°C. This tight tolerance ensures consistent reset behavior across automotive thermal cycles and eliminates ambiguity in brownout detection margins for 2.5V and 3.0V systems. The value is guaranteed by production testing, not just design simulation.
Does the MAX810REUR+ require an external pullup resistor on its RESET pin?
No, the MAX810REUR+ does not require an external pullup resistor because it features a push-pull output stage. Its active-high RESET pin drives high (≥0.8×VCC) when asserted and low (≤0.4V) when deasserted, enabling direct connection to standard CMOS inputs without additional components - unlike the open-drain MAX803 series.
Is the MAX810REUR+ qualified for automotive applications?
Yes, the MAX810REUR+ is AEC-Q100 qualified and rated for operation from –40°C to +105°C. Its datasheet explicitly states AEC-Q100 qualification in the Benefits and Features section, and the "/V" suffix variants (e.g., MAX810REUR/V+) confirm automotive-grade screening - making MAX810REUR+ suitable for engine control, body electronics, and ADAS power domains.
How long does the MAX810REUR+ hold the RESET signal active after VCC rises above threshold?
The MAX810REUR+ holds the active-high RESET signal for a minimum of 140ms after VCC rises above the 2.63V threshold. This guaranteed timeout meets or exceeds the power-on reset timing requirements of most ARM Cortex-M, PIC, and 8051 microcontrollers, ensuring complete initialization of internal registers and memory before code execution begins.
Can the MAX810REUR+ operate reliably when VCC drops below 1.5V?
Yes, the MAX810REUR+ guarantees valid RESET output down to VCC = 1V. Below 1.5V, its push-pull driver continues to assert correct logic levels: RESET remains high while VCC is below 2.63V, and transitions cleanly low once VCC exceeds threshold and stabilizes - a key differentiator from competitors that lose output control below 1.8V.
MAX810REUR+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.63V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active High
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
MAX810REUR+ FAQ
1.How can I place an order for MAX810REUR+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX810REUR+ 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 MAX810REUR+ reliable?
The price and inventory of MAX810REUR+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX810REUR+ is usually 5 days.
3.What payment methods are accepted for MAX810REUR+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX810REUR+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX810REUR+?
MAX810REUR+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX810REUR+ 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 MAX810REUR+?
For technical support, including MAX810REUR+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX810REUR+ requirements.
6.How does Aetrix verify that MAX810REUR+ is sourced from the original manufacturer or authorized distributors?
All MAX810REUR+ 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 MAX810REUR+ meets industry standards.
7.What is the process for return or replacement of MAX810REUR+?
All MAX810REUR+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX810REUR+, 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 MAX810REUR+ part is unused and in its original packaging.
Return procedure for MAX810REUR+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX810REUR+ Tags
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MIC826SYMT-TR
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