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Analog Devices Inc./Maxim Integrated MAX810TEUR-T
- Part No.:
- MAX810TEUR-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
MAX810TEUR-T.pdf
- Description:
- IC SUPERVISOR 3PIN MPU RESET
- Quantity:
- Payment:
- Shipping:
Inventory:18,631
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Product details
Overview
The MAX810TEUR-T from Maxim Integrated is a 3-pin SOT23-packaged microprocessor supervisory circuit with push-pull active-high RESET output, precision 3.08V reset threshold (±0.04V at +25°C), 140ms minimum reset timeout, 12μA supply current at +25°C, and guaranteed operation down to VCC = +1V - used for reliable power-on/brownout reset assertion in embedded controllers and portable equipment.
For engineers reviewing the MAX810TEUR-T datasheet, MAX810TEUR-T pinout, MAX810TEUR-T application, or MAX810TEUR-T equivalent, this page delivers verified functional identity, exact reset threshold behavior, temperature-stable timing, SOT23 package compatibility, and real-world interface guidance for μP reset line integration.
Technical Context
The MAX810TEUR-T implements a precision voltage comparator with 30ppm/°C tempco to monitor VCC against a factory-trimmed 3.08V threshold. Its internal timer guarantees ≥140ms RESET assertion after VCC rises above threshold, with full specification across –40°C to +105°C.
It features a push-pull active-high RESET output capable of sourcing 150µA at 0.8×VCC when VCC > VTH(max), and sinking 1.2mA at ≤0.3V when asserted low. The device ignores transients <20µs at 100mV overdrive, ensuring immunity to typical supply noise.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 3.08V ±0.04V at +25°C; stable across –40°C to +105°C (±0.15V total variation) |
| Reset Timeout | ≥140ms after VCC rises above threshold; ensures μP completes power stabilization before release |
| Supply Current | 17µA (typ) at +25°C, VCC = 3.3V; enables multi-year battery life in portable systems |
| Output Type | Push-pull active-high RESET; eliminates external pullup and supports direct CMOS logic interface |
| VCC Operating Range | 1.2V to 5.5V; valid reset assertion guaranteed down to VCC = +1V for fail-safe brownout detection |
| Transient Immunity | Rejects VCC glitches ≤20µs wide at 100mV overdrive; prevents spurious resets in noisy environments |
| Package | SOT23-3; industry-standard footprint compatible with automated assembly and space-constrained PCBs |
Pinout & Package
MAX810TEUR-T uses the standard 3-pin SOT23 package (package code U3-1), with 1.3mm × 2.9mm body, 0.95mm pitch, and gull-wing leads. Pin 1 is RESET, Pin 2 is GND, Pin 3 is VCC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - RESET | Active-high push-pull output | Drives high during reset (VCC < 3.08V) and low after timeout; sinks 1.2mA, sources 150µA |
| 2 - GND | Ground reference | Return path for internal comparator and output stage; must be low-impedance for accurate threshold sensing |
| 3 - VCC | Supply input | Monitored voltage rail; powers internal circuitry and defines reset threshold reference point |
Key Features
| Feature | Design Value |
|---|---|
| Precision 3.08V reset threshold | Factory-trimmed to ±0.04V at +25°C with 30ppm/°C tempco - ensures deterministic reset at 3.3V system margin |
| 140ms minimum reset timeout | Guaranteed assertion period independent of VCC ramp rate - meets μP tRESET requirements without external RC |
| Active-high push-pull output | Direct drive of CMOS inputs without pullup resistor - reduces BOM count and eliminates floating-state risk |
| 1.2V to 5.5V VCC range | Operates across 3.3V, 3.0V, and 2.5V systems while maintaining valid reset down to VCC = +1V |
| 12μA typical supply current | Enables use in always-on battery-backed subsystems with negligible impact on standby lifetime |
Applications
| Industrial Controllers | Portable Medical Devices |
|---|---|
Use Scenario: PLC I/O modules powered from 3.3V rails subject to brownouts during field maintenance or ESD events. IC Role / Device Role / Timing Role: Supervisory circuit asserting active-high RESET to hold ARM Cortex-M4 core in reset until 3.3V stabilizes post-brownout. Use Value: Prevents corrupted register writes and flash memory corruption by guaranteeing ≥140ms reset hold time after VCC recovery. |
Use Scenario: Handheld glucose meters using coin-cell batteries where supply drops below 3.0V during peak sensor activation. IC Role / Device Role / Timing Role: Monitors 3.0V LDO output and asserts active-high RESET to halt MCU execution before undervoltage lockout occurs. Use Value: Eliminates erratic display behavior and false readings by enforcing clean restart at precisely 3.08V threshold with no external components. |
| Automotive Body Control Modules | Smart Energy Meters |
Use Scenario: 12V-to-3.3V converted supply in BCM experiencing load-dump transients and cold-crank voltage sags. IC Role / Device Role / Timing Role: Resets microcontroller upon VCC dip below 3.08V during cranking; immune to 20µs/100mV transients per spec. Use Value: Ensures deterministic boot sequence after engine start without false triggers from alternator ripple or relay bounce. |
Use Scenario: Three-phase meter with isolated 3.3V auxiliary supply powering metrology SoC and RF transceiver. IC Role / Device Role / Timing Role: Provides synchronized active-high RESET to both metrology ASIC and wireless MCU upon AC loss or brownout. Use Value: Guarantees atomic state recovery across dual processors using single-supply monitoring - no timing skew or partial initialization. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX809TEUR-T | Same SOT23-3 package and 3.08V threshold, but active-low push-pull RESET output | Requires inverted logic handling in host μP; incompatible with systems expecting active-high reset assertion | Select only if target μP reset pin is active-low and board layout cannot accommodate level-shifting |
| TPS3808G30DBVR | 3.0V threshold (±0.5%), 200ms timeout, 1.8–6.0V VCC range, open-drain output requiring pullup | Higher threshold tolerance and longer timeout; open-drain output adds BOM item and limits drive strength | Prefer when wider VCC range or extended timeout is required, but avoid if active-high direct-drive is mandatory |
Compared with MAX809TEUR-T, the MAX810TEUR-T provides native active-high signaling for simplified interface; compared with TPS3808G30DBVR, it eliminates external pullup and offers tighter threshold accuracy (±0.04V vs ±0.015V), enabling more robust 3.3V system margin control.
Availability
MAX810TEUR-T is available at Aetrix Electronics and suitable for industrial controllers, portable medical devices, automotive body electronics, smart energy meters, and battery-powered instrumentation requiring stable component supply and long-term lifecycle support.
Supply support for MAX810TEUR-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, and communications applications, with emphasis on reliability, low power, and integration.
The MAX810TEUR-T belongs to the MAX803/MAX809/MAX810 family of microprocessor supervisory circuits, engineered specifically for deterministic power-on and brownout reset generation in space- and cost-constrained embedded systems.
FAQ
What is the exact reset threshold voltage of the MAX810TEUR-T and how does it vary with temperature?
The MAX810TEUR-T has a nominal reset threshold of 3.08V at +25°C, with ±0.04V initial accuracy. Over the full operating range of –40°C to +105°C, the threshold varies by ±0.15V maximum (3.00V to 3.15V), corresponding to a 30ppm/°C tempco. This tight specification ensures predictable reset behavior in 3.3V systems under thermal stress, and is confirmed in the Electrical Characteristics table of the official datasheet.
Does the MAX810TEUR-T require an external pullup resistor on its RESET pin?
No, the MAX810TEUR-T does not require an external pullup resistor because it features a push-pull active-high RESET output. Unlike open-drain variants such as the MAX803, the MAX810TEUR-T actively drives HIGH during reset and LOW after timeout, enabling direct connection to CMOS inputs without additional components. This simplifies layout and improves noise immunity in the MAX810TEUR-T design.
What is the minimum VCC voltage at which the MAX810TEUR-T guarantees valid RESET output behavior?
The MAX810TEUR-T guarantees correct RESET logic state down to VCC = +1V. Below this, the output may become undefined. This is explicitly stated in the General Description and Electrical Characteristics sections: "outputs are guaranteed to be in the correct logic state for VCC down to 1V." For applications requiring validity below 1V, a 100kΩ pullup to VCC is recommended per the Applications Information section.
How long is the RESET pulse width generated by the MAX810TEUR-T after VCC rises above the threshold?
The MAX810TEUR-T asserts RESET for a minimum of 140ms after VCC rises above the 3.08V threshold. Typical timeout is 240ms, with a maximum of 560ms over –40°C to +105°C (SOT23 package). This fixed delay is internally generated and independent of VCC ramp rate, satisfying μP tRESET requirements without external timing components.
Is the MAX810TEUR-T pin-compatible with other members of the MAX803/MAX809/MAX810 family?
Yes, the MAX810TEUR-T shares identical SOT23-3 pinout (RESET–GND–VCC) with MAX809TEUR-T and MAX803 variants in SOT23, but differs functionally: MAX803 has open-drain output, MAX809 has active-low push-pull, and MAX810TEUR-T has active-high push-pull. Physical compatibility enables drop-in replacement only when output polarity matches system requirements - electrical substitution requires validation of reset logic polarity.
MAX810TEUR-T 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:
- 3.08V
- 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
MAX810TEUR-T FAQ
1.How can I place an order for MAX810TEUR-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX810TEUR-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 MAX810TEUR-T reliable?
The price and inventory of MAX810TEUR-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX810TEUR-T is usually 5 days.
3.What payment methods are accepted for MAX810TEUR-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX810TEUR-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX810TEUR-T?
MAX810TEUR-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX810TEUR-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 MAX810TEUR-T?
For technical support, including MAX810TEUR-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX810TEUR-T requirements.
6.How does Aetrix verify that MAX810TEUR-T is sourced from the original manufacturer or authorized distributors?
All MAX810TEUR-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 MAX810TEUR-T meets industry standards.
7.What is the process for return or replacement of MAX810TEUR-T?
All MAX810TEUR-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX810TEUR-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 MAX810TEUR-T part is unused and in its original packaging.
Return procedure for MAX810TEUR-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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