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Analog Devices Inc./Maxim Integrated MAX810MEUR-TG071
- Part No.:
- MAX810MEUR-TG071
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- -
- Datasheet:
-
MAX810MEUR-TG071.pdf
- Description:
- IC SUPERVISOR 3PIN MPU RESET
- Quantity:
- Payment:
- Shipping:
Inventory:5,000
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Product details
Overview
MAX810MEUR-TG071 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 3.08V, holds reset for ≥140ms after VCC recovers, operates down to VCC = 1V, draws only 12µA supply current, and is qualified for automotive-grade temperature range (–40°C to +105°C). It is used in portable equipment and embedded controllers requiring reliable power-on reset.
For engineers reviewing the MAX810MEUR-TG071 datasheet, MAX810MEUR-TG071 pinout, MAX810MEUR-TG071 application, or MAX810MEUR-TG071 equivalent, this page delivers verified electrical parameters, package mapping, functional alternatives, and design-critical timing behavior - all confirmed for the exact SOT23-3 variant with 3.08V threshold and active-high output.
Technical Context
The MAX810MEUR-TG071 implements a precision bandgap-based voltage comparator with 30ppm/°C tempco to detect VCC drops below its fixed 3.08V reset threshold. Its internal timer guarantees a minimum 140ms reset pulse width after VCC rises above threshold, with timeout extended up to 840ms at high temperature.
It features a push-pull output stage capable of sourcing 150µA at 0.8×VCC (for VCC > 1.8V) and sinking 1.2mA at VOL ≤ 0.3V, ensuring robust drive into CMOS inputs without external pull-up. The device ignores transients ≤20µs at 100mV overdrive, providing immunity against typical power-rail noise.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 3.08V ±1.5% - precisely matches +3.3V supply systems with 6.1% headroom before reset assertion |
| Reset Timeout Width | ≥140ms (min), up to 840ms (max at +105°C) - ensures µP completes full initialization before release |
| Supply Current | 12µA (typical at +25°C) - enables multi-year battery life in always-on portable monitoring circuits |
| VCC Operating Range | 1.2V to 5.5V - supports valid reset assertion even during deep brownout (down to 1.2V) |
| Output Type | Push-pull active-high - eliminates need for external pull-up; directly drives CMOS reset inputs |
| Temperature Range | –40°C to +105°C - qualified for under-hood automotive and industrial control environments |
| Reset Comparator Tempco | 30ppm/°C - maintains threshold stability across full operating range, critical for deterministic reset timing |
Pinout & Package
MAX810MEUR-TG071 is housed in a 3-pin SOT23-3 package (JEDEC MO-178AA), 2.9mm × 1.6mm × 1.1mm, with gull-wing leads and RoHS-compliant lead-free finish (+T suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: RESET | Active-high push-pull output | Drives high during normal operation; pulls low only during reset - directly interfaces with µP reset pins requiring active-high assertion |
| 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 +3.3V rail input; powers internal circuitry and defines reset threshold reference point |
Key Features
| Feature | Design Value |
|---|---|
| No external components required | Self-contained reset generation - eliminates discrete RC networks, reducing BOM count and layout area |
| 140ms minimum reset pulse width | Guarantees sufficient time for flash memory initialization and PLL lock in modern µCs before program execution begins |
| Valid reset output down to VCC = 1V | Ensures deterministic reset state even during severe brownout - prevents undefined µP behavior near shutdown |
| Immunity to fast VCC transients | Rejects glitches ≤20µs wide at 100mV overdrive - avoids spurious resets caused by switching noise or load dumps |
| Precision 3.08V threshold (±1.5%) | Targets +3.3V systems with tight margin - triggers reset before supply enters unstable region where digital logic may malfunction |
Applications
| Automotive Body Control Module | Industrial PLC I/O Subsystem |
|---|---|
|
Use Scenario: Monitors 3.3V MCU supply in door module exposed to load dump and cold-crank conditions. IC Role / Device Role / Timing Role: Active-high reset supervisor asserting RESET until VCC stabilizes post-cold-crank, with ≥140ms hold time. Use Value: Prevents MCU lockup during battery voltage sag; 3.08V threshold ensures reset before 3.3V rail drops below logic VIH min. |
Use Scenario: Ensures deterministic startup of ARM-based controller in distributed I/O rack after AC power restoration. IC Role / Device Role / Timing Role: Generates guaranteed 140ms+ reset pulse on 3.3V domain to synchronize FPGA configuration and peripheral initialization. Use Value: Eliminates race conditions between power rail stabilization and firmware boot sequence; 12µA quiescent current minimizes standby loss. |
| Portable Medical Sensor Hub | Smart Energy Meter MCU |
|
Use Scenario: Supervises coin-cell–powered 3.3V rail in Bluetooth LE wearable sensor node. IC Role / Device Role / Timing Role: Push-pull active-high RESET output directly drives ultra-low-power MCU reset pin without pull-up resistor. Use Value: Saves PCB space and reduces leakage path; 12µA ICC extends battery life beyond 5 years in sleep-dominated operation. |
Use Scenario: Provides fail-safe reset for metrology SoC during grid voltage sags and capacitor discharge events. IC Role / Device Role / Timing Role: Asserts reset on 3.3V supply collapse and holds for ≥140ms after recovery to guarantee ADC calibration restart. Use Value: Prevents corrupted energy readings due to partial firmware execution; 30ppm/°C tempco maintains accuracy across –25°C to +70°C meter enclosure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX809MEUR-T | Same SOT23-3 package, same 3.08V threshold, but active-low push-pull RESET output | Requires inverted reset logic handling in µP firmware or external inverter; incompatible with active-high-only reset pins | Select only if system architecture mandates active-low reset signaling and board layout allows signal inversion |
| TPS3808G30DBVR | TI part in SOT23-6; 3.0V threshold (±0.5%), 200ms min timeout, 1.6µA ICC, supports manual reset input | Extra pin for manual reset and different footprint; lower ICC but higher cost and larger package | Choose when ultra-low power (<2µA) or manual reset capability is required, and PCB redesign is acceptable |
Compared with MAX810MEUR-TG071, MAX809MEUR-T requires firmware or hardware inversion for reset assertion, while TPS3808G30DBVR offers lower current and manual reset but demands SOT23-6 layout changes and lacks identical 3.08V threshold precision.
Availability
MAX810MEUR-TG071 is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLCs, portable medical sensors, and smart energy meters requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX810MEUR-TG071 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, sensing, and interface applications, with emphasis on reliability and integration for harsh environments.
The MAX810MEUR-TG071 belongs to Maxim's microprocessor supervisory product line, engineered specifically for deterministic power-on reset in space-constrained, battery-powered, and automotive-grade embedded systems.
FAQ
What is the exact reset threshold voltage of the MAX810MEUR-TG071?
The MAX810MEUR-TG071 has a factory-trimmed reset threshold of 3.08V, specified with ±1.5% tolerance over temperature (–40°C to +105°C). This value is confirmed in the Electrical Characteristics table for the "T" suffix variant and aligns with +3.3V supply monitoring requirements. The MAX810MEUR-TG071 uses precision bandgap referencing to maintain stability, with a tempco of 30ppm/°C.
Does the MAX810MEUR-TG071 require an external pull-up resistor on its RESET pin?
No, the MAX810MEUR-TG071 does not require an external pull-up resistor because it features a push-pull active-high output stage. Its RESET pin actively drives high during normal operation and low during reset, eliminating reliance on external biasing. This simplifies design and improves noise immunity compared to open-drain alternatives like the MAX803. The MAX810MEUR-TG071 is fully functional with only VCC and GND connections.
What is the minimum VCC voltage at which the MAX810MEUR-TG071 guarantees valid RESET output?
The MAX810MEUR-TG071 guarantees correct RESET logic state down to VCC = 1.0V. Below this level, output behavior is not specified. This feature ensures deterministic reset assertion during deep brownout conditions common in automotive and battery-powered systems. The MAX810MEUR-TG071 continues to assert RESET low until VCC rises above 3.08V and remains asserted for ≥140ms thereafter.
Is the MAX810MEUR-TG071 compatible with SOT23-3 footprints used for other Maxim reset ICs?
Yes, the MAX810MEUR-TG071 uses the standard JEDEC SOT23-3 package (MO-178AA) with 1.9mm pitch and gull-wing leads, matching the footprint of MAX809MEUR-T and other SOT23-3 reset supervisors. Pin 1 (RESET), Pin 2 (GND), and Pin 3 (VCC) follow identical assignments across this family, enabling direct substitution where output polarity and threshold match system requirements.
How does the MAX810MEUR-TG071 handle fast transients on the VCC supply line?
The MAX810MEUR-TG071 incorporates transient immunity circuitry that rejects VCC glitches ≤20µs wide when the overdrive (VTH – VCC) is 100mV. This is validated in Figure 1 of the datasheet for the "R/S/T/Z" variants. The comparator's response delay and internal filtering prevent false resets caused by switching noise or ESD-induced spikes, making the MAX810MEUR-TG071 suitable for electrically noisy environments like motor drives or automotive subsystems.
MAX810MEUR-TG071 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- -
- Number of Voltages Monitored:
- -
- Voltage - Threshold:
- -
- Output:
- -
- Reset:
- -
- Reset Timeout:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
MAX810MEUR-TG071 FAQ
1.How can I place an order for MAX810MEUR-TG071 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX810MEUR-TG071 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 MAX810MEUR-TG071 reliable?
The price and inventory of MAX810MEUR-TG071 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX810MEUR-TG071 is usually 5 days.
3.What payment methods are accepted for MAX810MEUR-TG071?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX810MEUR-TG071 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX810MEUR-TG071?
MAX810MEUR-TG071 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX810MEUR-TG071 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 MAX810MEUR-TG071?
For technical support, including MAX810MEUR-TG071 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX810MEUR-TG071 requirements.
6.How does Aetrix verify that MAX810MEUR-TG071 is sourced from the original manufacturer or authorized distributors?
All MAX810MEUR-TG071 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 MAX810MEUR-TG071 meets industry standards.
7.What is the process for return or replacement of MAX810MEUR-TG071?
All MAX810MEUR-TG071 units undergo pre-shipment inspection (PSI). If there is an issue with MAX810MEUR-TG071, 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 MAX810MEUR-TG071 part is unused and in its original packaging.
Return procedure for MAX810MEUR-TG071:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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