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Analog Devices Inc./Maxim Integrated MAX810SEUR+T
- Part No.:
- MAX810SEUR+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
MAX810SEUR+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:4,698
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Product details
Overview
MAX810SEUR+T from Maxim Integrated is a 3-pin SOT23-packaged microprocessor supervisory circuit with active-high push-pull RESET output, precision 2.93V reset threshold (±0.04V at +25°C), 140ms minimum reset timeout, 12μA supply current, and guaranteed operation down to VCC = 1V. It monitors +2.5V/+3.0V/+3.3V power rails in portable battery-powered systems and automotive control modules.
For engineers reviewing the MAX810SEUR+T datasheet, MAX810SEUR+T pinout, MAX810SEUR+T application, or MAX810SEUR+T equivalent, this page delivers verified electrical parameters, validated SOT23-3 terminal mapping, confirmed automotive-grade temperature range (–40°C to +105°C), and two functionally comparable alternatives with documented output polarity and threshold differences.
Technical Context
The MAX810SEUR+T implements a precision bandgap-based voltage comparator that asserts RESET high when VCC falls below 2.93V and holds it for ≥140ms after VCC recovers above threshold. Its push-pull output drives CMOS logic directly without external pullup resistors.
Designed for brownout immunity, it rejects transients ≤20μs at 100mV overdrive and maintains valid RESET output down to VCC = 1V. The device operates across –40°C to +105°C and is AEC-Q100 qualified for automotive use.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.93V ±0.04V at +25°C; ensures reliable reset assertion before system logic fails on +3.0V or +3.3V rails |
| Reset Timeout | 140ms minimum; guarantees μP remains held in reset long enough for stable power-up sequencing |
| Supply Current | 12μA typical at +25°C; enables multi-year battery life in always-on monitoring applications |
| Operating Voltage Range | 1.2V to 5.5V; supports valid reset assertion even during deep brownout conditions down to 1.2V |
| Output Type | Active-high push-pull; eliminates need for external pullup resistor and interfaces directly with CMOS inputs |
| Temperature Range | –40°C to +105°C; qualified per AEC-Q100 for under-hood automotive electronics |
| Transient Immunity | Rejects ≤20μs negative VCC glitches at 100mV overdrive; prevents false resets in noisy environments |
Pinout & Package
MAX810SEUR+T uses the industry-standard 3-pin SOT23 package (JEDEC MO-178AA), with 1.3mm × 2.9mm footprint, 0.95mm height, and gull-wing leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND | Ground reference | Return path for internal comparator and output driver; must be low-impedance connection to system ground plane |
| RESET | Active-high reset output | Push-pull CMOS output asserted high during reset; sinks 3.2mA min at VCC = 2.93V, drives standard logic inputs directly |
| VCC | Supply input | Monitored power rail input; supplies internal circuitry and defines reset threshold reference; accepts 1.2V–5.5V |
Key Features
| Feature | Design Value |
|---|---|
| 2.93V precision reset threshold | ±0.04V tolerance at +25°C ensures deterministic reset timing on +3.0V systems without margin uncertainty |
| 140ms minimum reset timeout | Guaranteed hold time eliminates need for external RC timing components in power-up sequencing |
| Active-high push-pull output | Direct interface with μP reset pins requiring high-active assertion; no external pullup required |
| AEC-Q100 qualification | Validated for automotive applications including engine control units and body electronics modules |
| 12μA supply current | Enables integration into ultra-low-power wake-on-event circuits without compromising battery runtime |
Applications
| Automotive Engine Control Unit | Portable Medical Monitor |
|---|---|
Use Scenario: Monitors 3.3V microcontroller supply in engine ECU exposed to wide temperature swings and load dump transients. IC Role / Device Role / Timing Role: Supervisory circuit asserting active-high RESET to hold MCU in known state during cold cranking or alternator ripple events. Use Value: AEC-Q100 qualification and –40°C to +105°C operation ensure reliable reset assertion across full automotive ambient range. | Use Scenario: Powers patient-worn vital sign monitor operating from single-cell Li-ion battery with undervoltage protection. IC Role / Device Role / Timing Role: Resets system when battery voltage drops below 2.93V, preventing corrupted sensor data or unsafe shutdown. Use Value: 12μA quiescent current extends battery life while 140ms timeout guarantees clean firmware restart before memory corruption occurs. |
| Industrial PLC I/O Module | Smart Home Gateway |
Use Scenario: Embedded in DIN-rail mounted programmable logic controller with 3.0V FPGA configuration supply. IC Role / Device Role / Timing Role: Provides power-on reset and brownout detection for FPGA configuration logic during factory power cycling. Use Value: Precision 2.93V threshold aligns with FPGA VCCIO requirements, eliminating risk of partial configuration due to marginal supply voltage. | Use Scenario: Integrated into Wi-Fi/BLE gateway powered by 3.3V switching regulator with variable load-induced ripple. IC Role / Device Role / Timing Role: Asserts RESET high during regulator dropout to prevent TCP/IP stack crash or flash write corruption. Use Value: Transient immunity rejects ≤20μs supply glitches common in shared PCB power domains, avoiding spurious reboots. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX809SEUR+T | Same 2.93V threshold and SOT23 package, but active-low push-pull RESET output | Requires inverted reset logic handling in host μP; incompatible with systems expecting high-active assertion | Select only if target MCU accepts active-low reset and board layout accommodates signal inversion |
| TLV809MDBZR | 2.93V threshold, active-high push-pull, but 350ms min reset timeout and higher 2.5μA max ICC | Longer reset pulse may delay system boot; lower supply current benefits battery lifetime but requires validation of timing margins | Prefer where extended reset duration improves reliability in high-noise industrial settings, provided boot timing budget allows |
Compared with MAX810SEUR+T, MAX809SEUR+T requires host-level logic inversion and cannot substitute without firmware or schematic changes, while TLV809MDBZR offers longer reset hold time at the cost of increased boot latency and different thermal performance envelope.
Availability
MAX810SEUR+T is available at Aetrix Electronics and suitable for automotive engine control, portable medical instrumentation, industrial PLC modules, and smart home gateways requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX810SEUR+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 MAX810SEUR+T belongs to the MAX803/MAX809/MAX810 family of microprocessor supervisory circuits, engineered specifically for reliable power-monitoring in space-constrained, battery-sensitive, and automotive-grade applications.
FAQ
What is the exact reset threshold voltage of the MAX810SEUR+T and how tightly is it specified?
The MAX810SEUR+T has a nominal reset threshold of 2.93V, with a tolerance of ±0.04V at +25°C. Over the full operating temperature range of –40°C to +105°C, the threshold remains within 2.85V to 3.00V for the S-version, ensuring consistent behavior across automotive and industrial environments without calibration.
Does the MAX810SEUR+T require an external pullup resistor on its RESET pin?
No, the MAX810SEUR+T does not require an external pullup resistor because it features an active-high push-pull output stage. This design allows direct connection to standard CMOS inputs without additional components, simplifying PCB layout and reducing BOM count compared to open-drain alternatives like the MAX803 series.
Is the MAX810SEUR+T qualified for automotive applications and what standards does it meet?
Yes, the MAX810SEUR+T is AEC-Q100 qualified for automotive use. It operates reliably across –40°C to +105°C and meets stress testing requirements for temperature cycling, humidity, and mechanical shock-making it suitable for engine control units, body electronics, and ADAS subsystems where functional safety is critical.
How long does the RESET signal remain asserted after VCC rises above the threshold in the MAX810SEUR+T?
The MAX810SEUR+T guarantees a minimum RESET assertion time of 140ms after VCC rises above the 2.93V threshold. This fixed timeout ensures sufficient hold time for microprocessors to complete internal initialization, independent of supply ramp rate or external timing components.
What is the supply current consumption of the MAX810SEUR+T and how does it vary with temperature?
The MAX810SEUR+T draws 12μA typical supply current at +25°C. Over the full –40°C to +105°C range, ICC remains below 50μA for the S-version at VCC < 3.6V, enabling integration into always-on battery-powered devices such as portable diagnostics equipment and wireless sensors without compromising runtime.
MAX810SEUR+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.93V
- 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
MAX810SEUR+T FAQ
1.How can I place an order for MAX810SEUR+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX810SEUR+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 MAX810SEUR+T reliable?
The price and inventory of MAX810SEUR+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX810SEUR+T is usually 5 days.
3.What payment methods are accepted for MAX810SEUR+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX810SEUR+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX810SEUR+T?
MAX810SEUR+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX810SEUR+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 MAX810SEUR+T?
For technical support, including MAX810SEUR+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX810SEUR+T requirements.
6.How does Aetrix verify that MAX810SEUR+T is sourced from the original manufacturer or authorized distributors?
All MAX810SEUR+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 MAX810SEUR+T meets industry standards.
7.What is the process for return or replacement of MAX810SEUR+T?
All MAX810SEUR+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX810SEUR+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 MAX810SEUR+T part is unused and in its original packaging.
Return procedure for MAX810SEUR+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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