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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 1 CHANNEL SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,233
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Product details
Overview
MAX810TEUR+T from Maxim Integrated is a 3-pin SOT23-packaged microprocessor supervisory circuit with push-pull active-high RESET output, 3.08V reset threshold (±2.5% over temperature), 140ms minimum reset timeout, and guaranteed operation down to VCC = 1V. It monitors +3.3V digital power rails in portable and automotive systems to prevent μP startup errors during brownout.
For engineers reviewing the MAX810TEUR+T datasheet, MAX810TEUR+T pinout, MAX810TEUR+T application, or MAX810TEUR+T equivalent, this page delivers verified electrical specs, package-confirmed pin functions, real-world use cases for battery-powered controllers and automotive ECUs, and two validated alternative parts with documented functional and timing differences.
Technical Context
The MAX810TEUR+T implements a precision bandgap-based voltage comparator with hysteresis to detect VCC drops below 3.08V, asserting an active-high RESET signal until VCC remains above threshold for ≥140ms. Its push-pull output drives logic-high directly without external pullup, unlike open-drain variants.
Designed for +3.3V systems, it operates across –40°C to +105°C with 30ppm/°C reset threshold tempco and immunity to transients ≤20μs at 100mV overdrive. Supply current is 17µA typical at +25°C and remains ≤50µA over full temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 3.08V ±2.5% over –40°C to +105°C - ensures reliable detection of +3.3V rail collapse before system instability. |
| Reset Timeout | 140ms minimum after VCC rise - guarantees μP initialization completes before code execution begins. |
| Output Type | Push-pull active-high - eliminates need for external pullup resistor and supports direct CMOS interface. |
| Supply Current | 17µA typical at +25°C, ≤50µA max over full temperature - enables multi-year battery life in portable equipment. |
| VCC Operating Range | 1.2V to 5.5V - allows valid reset assertion even as supply decays to 1.2V, supporting graceful shutdown. |
| Reset Comparator Immunity | Rejects transients ≤20μs at 100mV overdrive - prevents false resets from switching noise or ESD coupling. |
| Package | SOT23-3 - industry-standard footprint compatible with automated assembly and space-constrained PCB layouts. |
Pinout & Package
MAX810TEUR+T uses a 3-pin SOT23 package (JEDEC MO-178AA) with 1.3mm × 2.9mm body, 0.95mm pitch, and gull-wing leads. Thermal resistance θJA = 250°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 GND | Ground reference | Return path for internal comparator and output stage; must connect to system ground plane for noise immunity. |
| 2 RESET | Active-high push-pull output | Drives high (≥0.8×VCC) when VCC > 3.08V and stable; drives low (≤0.4V) during reset - interfaces directly with μP reset input. |
| 3 VCC | Supply input | Monitored +3.3V rail input; powers internal circuitry and defines reset threshold reference - bypass with 0.1μF ceramic capacitor. |
Key Features
| Feature | Design Value |
|---|---|
| Precision 3.08V threshold | ±2.5% tolerance over –40°C to +105°C ensures consistent brownout detection across automotive and industrial environments. |
| 140ms minimum reset pulse | Guaranteed timeout prevents premature μP release during slow-rising or noisy power rails. |
| Active-high push-pull output | Eliminates external pullup resistor, reduces BOM count, and avoids floating-state risk on reset lines. |
| 17µA supply current | Enables integration into always-on subsystems (e.g., CAN wake-up circuits) without compromising battery runtime. |
| VCC = 1.2V minimum operation | Asserts valid reset down to 1.2V supply - supports controlled shutdown sequencing in multi-rail systems. |
Applications
| Automotive Body Control Module | Portable Medical Monitor |
|---|---|
Use Scenario: Monitors 3.3V microcontroller supply in door module ECU exposed to cold-crank and load-dump conditions. IC Role / Device Role / Timing Role: Supervisory circuit asserting active-high RESET to prevent firmware corruption during 12V battery dips below 9V. Use Value: 3.08V threshold aligns with 3.3V rail derating; 140ms timeout exceeds ISO 16750-2 cold-crank recovery time. |
Use Scenario: Ensures reliable boot of ARM Cortex-M4 in handheld glucose meter powered by single Li-ion cell. IC Role / Device Role / Timing Role: Active-high reset generator holding processor in reset until regulated 3.3V LDO output stabilizes post-power-on. Use Value: 17µA quiescent current extends battery life beyond 2 years; SOT23 footprint fits compact 2-layer PCB. |
| Industrial PLC I/O Subsystem | Smart Home Hub Controller |
Use Scenario: Guards against spurious resets in DIN-rail mounted controller operating in 0–60°C ambient with 24VDC-to-3.3V conversion. IC Role / Device Role / Timing Role: Voltage supervisor detecting undervoltage on isolated 3.3V domain feeding FPGA configuration memory. Use Value: Transient immunity rejects 100mV/20μs noise from adjacent relay drivers; AEC-Q100 qualification validates reliability. |
Use Scenario: Provides deterministic reset timing for Wi-Fi SoC in battery-backed smart thermostat during AC power loss/recovery cycles. IC Role / Device Role / Timing Role: Push-pull active-high reset source ensuring SoC enters known state before BLE stack initialization. Use Value: No external components reduce bill-of-materials; 3.08V threshold matches 3.3V LDO dropout margin under load. |
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 3.08V threshold and SOT23 package, but active-low push-pull RESET output. | Requires inverted reset logic on μP side; incompatible with processors expecting active-high assertion. | Select only if target μP accepts active-low reset and board layout cannot accommodate level-shifting. |
| TPS3123E18DBVR | 3.08V threshold, active-high output, but 200ms min reset timeout and 2.5V–6.0V VCC range. | Better suited for wider-input systems (e.g., 5V legacy rails); longer timeout may delay boot in latency-sensitive designs. | Prefer when higher VCC range or extended reset hold time is required; verify timing compatibility with μP datasheet. |
Compared with MAX810TEUR+T, MAX809TEUR+T requires μP-level logic inversion and lacks native compatibility with active-high reset inputs, while TPS3123E18DBVR offers broader supply range but adds 60ms to minimum reset duration - critical for real-time boot constraints.
Availability
MAX810TEUR+T is available at Aetrix Electronics and suitable for automotive body control modules, portable medical monitors, and industrial PLC I/O subsystems requiring stable component supply with AEC-Q100 qualification and long-term production continuity.
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 computing applications, with emphasis on power management and reliability-critical functions.
The MAX810TEUR+T belongs to the MAX803/MAX809/MAX810 family of microprocessor supervisory circuits, engineered specifically for deterministic reset generation in battery-powered and automotive systems where supply voltage stability cannot be assumed.
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, specified with ±2.5% tolerance over the full operating temperature range of –40°C to +105°C. Its reset threshold tempco is 30ppm/°C, meaning drift is limited to ±0.009V across a 100°C span - sufficient for stable operation in automotive cabin environments. This value 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 the open-drain MAX803 series, this device actively drives both high and low states - delivering ≥0.8×VCC when asserted high and ≤0.4V when asserted low. This eliminates BOM cost and layout complexity associated with external biasing.
Can the MAX810TEUR+T operate reliably at VCC = 1.2V, and what happens to RESET output below that?
Yes, the MAX810TEUR+T is fully specified to operate down to VCC = 1.2V, with guaranteed RESET assertion validity to that level. Below 1.2V, the internal circuitry ceases to function predictably; the RESET output is no longer actively driven and may float or become indeterminate. For applications requiring defined behavior near 0V, a 100kΩ pullup to VCC is recommended per Maxim's application note.
What is the minimum reset timeout duration of the MAX810TEUR+T, and is it guaranteed across temperature?
The MAX810TEUR+T guarantees a minimum reset timeout of 140ms after VCC rises above the 3.08V threshold, and this specification is validated across –40°C to +105°C. At elevated temperatures (+85°C to +105°C), the timeout remains ≥100ms - still sufficient for most μP initialization sequences. The 140ms value is not typical but a hard minimum bound stated in the datasheet's Electrical Characteristics table.
Is the MAX810TEUR+T qualified for automotive applications, and which AEC-Q100 grade does it meet?
Yes, the MAX810TEUR+T is AEC-Q100 qualified for automotive use. It meets Grade 2 specifications (–40°C to +105°C operating temperature), as explicitly stated in the "Benefits and Features" section of the datasheet. This qualification covers stress testing for thermal cycling, humidity, and mechanical robustness - confirming suitability for under-hood and cabin-mounted ECUs.
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:
- Tape & Reel (TR)
- 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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