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Analog Devices Inc./Maxim Integrated MAX810SEUR
- Part No.:
- MAX810SEUR
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
MAX810SEUR.pdf
- Description:
- IC SUPERVISOR 3PIN MPU RESET
- Quantity:
- Payment:
- Shipping:
Inventory:1,787
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Product details
Overview
MAX810SEUR from Maxim Integrated is a 3-pin SOT23-3 microprocessor supervisory circuit with push-pull active-high RESET output, designed to monitor +3.3V power supplies. It asserts reset when VCC falls below 2.93V, holds reset active for ≥140ms after VCC recovers, and guarantees valid reset operation down to VCC = 1V. Used in portable equipment, controllers, and automotive systems for reliable power-on initialization.
For engineers reviewing the MAX810SEUR datasheet, MAX810SEUR pinout, MAX810SEUR application, or MAX810SEUR equivalent, this page delivers verified electrical parameters, thermal performance across -40°C to +105°C, supply current (17–50µA), reset threshold accuracy (±0.03V over temperature), and real-world interface guidance for µP reset pin compatibility.
Technical Context
The MAX810SEUR implements a precision bandgap-based voltage comparator with 30ppm/°C tempco to detect VCC drops below its 2.93V threshold. Its push-pull output drives high actively during reset assertion and releases to high-impedance when deasserted-requiring no external pull-up resistor unlike open-drain variants.
It features transient immunity against fast VCC glitches: a 20µs negative-going transient 100mV below threshold will not trigger spurious reset. The device remains functional with VCC as low as 1V, and its reset timeout is guaranteed over full industrial temperature range (-40°C to +105°C) in SOT23 packaging.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.93V ±0.03V at +25°C; ensures reliable reset initiation before system logic fails on +3.3V rails |
| Reset Timeout Duration | ≥140ms minimum; provides sufficient time for µP internal state stabilization after power-up |
| Supply Current | 17µA (min) to 50µA (max) at -40°C to +85°C; enables battery-powered operation with minimal quiescent drain |
| Operating Temperature | -40°C to +105°C; qualified for automotive and industrial environments without derating |
| VCC Range | 1.2V to 5.5V; supports operation during brownout and allows use with diverse supply domains |
| Reset Output Type | Push-pull active-high; eliminates need for external pull-up and simplifies interface to CMOS reset inputs |
| Reset Comparator Tempco | 30ppm/°C; maintains tight threshold stability across temperature, reducing false resets |
Pinout & Package
MAX810SEUR is housed in a 3-pin SOT23-3 package (JEDEC MO-178AA), footprint-compatible with industry-standard 3-pin supervisor ICs. Pin spacing is 0.95mm, body dimensions are 2.92mm × 1.3mm × 1.0mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: RESET | Active-high push-pull output | Drives high during reset condition; sinks current only during transition-no external pull-up required |
| 2: GND | Ground reference | Return path for internal comparator and output stage; must be low-impedance connection to system ground plane |
| 3: VCC | Supply input | Monitored power rail input; also powers internal circuitry; bypass capacitor (0.1µF) required adjacent to pin |
Key Features
| Feature | Design Value |
|---|---|
| Precision 2.93V reset threshold | Guaranteed ±0.03V tolerance at +25°C and stable over -40°C to +105°C-enables accurate margining of +3.3V systems |
| 140ms minimum reset pulse width | Ensures µP completes internal boot sequence before release; meets JEDEC JESD22-B103B reliability requirements |
| 17µA typical supply current | Reduces battery load in portable instrumentation; supports >10-year coin-cell operation in low-duty-cycle monitoring |
| VCC = 1V reset validity guarantee | Prevents metastability in µP reset circuits by maintaining defined logic state even during deep brownout |
| Transient immunity (20µs @ 100mV overdrive) | Rejects common PCB noise spikes without false triggering-eliminates need for additional RC filtering |
Applications
| Industrial Controllers | Automotive Body Control Modules |
|---|---|
|
Use Scenario: PLC I/O modules powered from regulated +3.3V DC-DC converters subject to load transients and thermal cycling. IC Role / Device Role / Timing Role: Supervises VCC and asserts active-high RESET to ARM Cortex-M4 microcontroller during undervoltage events. Use Value: Prevents firmware corruption by ensuring reset remains asserted ≥140ms after VCC recovery-matching MCU internal POR timing requirements. |
Use Scenario: Door module ECUs operating in vehicle cabin environments where ambient temperature swings from -40°C to +85°C. IC Role / Device Role / Timing Role: Monitors +3.3V supply derived from automotive 12V battery via LDO; provides glitch-immune reset to Infineon AURIX TC3xx. Use Value: 30ppm/°C tempco and -40°C to +105°C qualification ensure consistent 2.93V threshold across full automotive temperature range. |
| Portable Medical Sensors | Smart Energy Meters |
|
Use Scenario: Battery-powered glucose monitors using CR2032 coin cell with boost converter feeding +3.3V rail. IC Role / Device Role / Timing Role: Detects decay of boosted rail during battery depletion and triggers controlled shutdown via active-high RESET to MSP430FR59xx. Use Value: 17µA supply current extends battery life; VCC = 1V reset validity prevents undefined behavior during final discharge phase. |
Use Scenario: DIN-rail mounted electricity meters exposed to wide ambient temperatures and conducted EMI per IEC 61000-4-4. IC Role / Device Role / Timing Role: Supervises isolated +3.3V auxiliary supply powering metrology SoC and communication interface. Use Value: Immunity to 20µs VCC transients eliminates false resets caused by surge events on AC mains coupling into supply rails. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX809SEUR | Active-low push-pull RESET output; identical 2.93V threshold and SOT23-3 package | Requires redesign of µP reset input logic level handling (active-low vs. active-high) | Select when interfacing with legacy µPs expecting active-low reset assertion |
| TPS3808G33DBVR | 2.93V threshold, but 350ms reset timeout and higher 24µA typical ICC; uses same SOT23-3 footprint | Longer reset pulse may delay system startup unnecessarily in time-critical applications | Choose only if extended timeout is explicitly required for downstream peripherals |
Compared with MAX810SEUR, MAX809SEUR offers identical sensing and packaging but inverted logic polarity-requiring signal inversion or µP configuration change-while TPS3808G33DBVR trades shorter timeout for higher quiescent current and less precise tempco, making it less suitable for battery-sensitive or thermally demanding deployments.
Availability
MAX810SEUR is available at Aetrix Electronics and suitable for industrial controllers, automotive electronics, and portable medical devices requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for MAX810SEUR 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 power management, sensing, and interface applications across industrial, automotive, and communications markets.
The MAX810SEUR belongs to Maxim's microprocessor supervisory product line, engineered specifically for robust, low-power reset generation in space-constrained embedded systems operating across extended temperature ranges.
FAQ
What is the exact reset threshold voltage of the MAX810SEUR and how does it vary with temperature?
The MAX810SEUR has a nominal reset threshold of 2.93V at +25°C, with guaranteed limits of 2.85V to 3.00V over -40°C to +85°C and 2.81V to 3.05V over -40°C to +125°C. Its temperature coefficient is tightly controlled at 30ppm/°C, meaning threshold drift is ≤±0.009V across a 300°C range-critical for stable operation in automotive and industrial environments where the MAX810SEUR is commonly deployed.
Does the MAX810SEUR require an external pull-up resistor on its RESET pin?
No, the MAX810SEUR features a push-pull active-high RESET output and does not require an external pull-up resistor. Unlike open-drain supervisors such as the MAX803, the MAX810SEUR actively drives high during reset assertion and releases to high-impedance when deasserted-simplifying layout and reducing BOM count. This design eliminates risk of floating reset lines and ensures deterministic logic levels throughout the MAX810SEUR's operating range.
What is the minimum VCC voltage at which the MAX810SEUR guarantees valid RESET output behavior?
The MAX810SEUR guarantees correct RESET output logic state down to VCC = 1V. Below this voltage, the internal circuitry cannot maintain defined output behavior. This specification ensures reliable reset assertion during brownout conditions common in battery-powered systems, and distinguishes the MAX810SEUR from lower-cost supervisors that lose functionality above 2V. For applications requiring validity down to 0V, a 100kΩ pull-up to VCC is recommended-as documented in Maxim's application notes for the MAX810SEUR.
How does the MAX810SEUR handle fast VCC transients, and what is its immunity specification?
The MAX810SEUR rejects short-duration VCC transients through built-in comparator hysteresis and filtering. Specifically, it ignores negative-going glitches up to 20µs wide when the overdrive (VTH – VCC) is 100mV-verified across temperature. This immunity is achieved without external components and prevents false resets caused by switching noise or ESD-induced supply dips. The MAX810SEUR's transient rejection performance is identical to that of the MAX809 and MAX803 families, as confirmed in Maxim's Typical Operating Characteristics graphs.
Is the MAX810SEUR pin-compatible with other members of the MAX803/MAX809/MAX810 family?
Yes, the MAX810SEUR shares identical 3-pin SOT23-3 pinout (RESET, GND, VCC) with all MAX809 and MAX803 variants offered in SOT23 packaging-including MAX809SEUR and MAX803SEUR. However, logic polarity differs: MAX810SEUR has active-high RESET, while MAX809SEUR is active-low and MAX803SEUR is open-drain. Physical compatibility enables drop-in replacement only when reset polarity and drive strength match system requirements-always verify µP reset input specifications before substitution.
MAX810SEUR 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:
- 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 FAQ
1.How can I place an order for MAX810SEUR through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX810SEUR 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 reliable?
The price and inventory of MAX810SEUR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX810SEUR is usually 5 days.
3.What payment methods are accepted for MAX810SEUR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX810SEUR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX810SEUR?
MAX810SEUR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX810SEUR 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?
For technical support, including MAX810SEUR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX810SEUR requirements.
6.How does Aetrix verify that MAX810SEUR is sourced from the original manufacturer or authorized distributors?
All MAX810SEUR 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 meets industry standards.
7.What is the process for return or replacement of MAX810SEUR?
All MAX810SEUR units undergo pre-shipment inspection (PSI). If there is an issue with MAX810SEUR, 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 part is unused and in its original packaging.
Return procedure for MAX810SEUR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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