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Analog Devices Inc./Maxim Integrated MAX6836VXSD3+T
- Part No.:
- MAX6836VXSD3+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-82A, SOT-343
- Datasheet:
-
MAX6836VXSD3+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-4
- Quantity:
- Payment:
- Shipping:
Inventory:1,573
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Product details
Overview
MAX6836VXSD3+T from Maxim Integrated is a push-pull active-high voltage supervisor IC designed for ultra-low-voltage microprocessor reset monitoring in 1.2V–1.8V systems. It features a factory-set 1.575V reset threshold (suffix V), 210ms reset timeout (suffix D3), ±2.5% accuracy over temperature, and operates down to VCC = 0.75V while asserting reset. It is used in portable equipment and battery-powered controllers to ensure reliable power-on initialization.
For engineers reviewing the MAX6836VXSD3+T datasheet, MAX6836VXSD3+T pinout, MAX6836VXSD3+T application, or MAX6836VXSD3+T equivalent, key selection criteria include active-high push-pull output compatibility with µP reset inputs, guaranteed reset validity at low VCC (≥0.75V), SC70-4 package footprint constraints, and manual reset debouncing capability.
Technical Context
The MAX6836VXSD3+T implements a precision bandgap-based voltage comparator with internal hysteresis (0.75% of VTH) to reject fast VCC transients. Its reset logic asserts a high-level RESET signal when VCC falls below 1.575V or when the debounced MR input is pulled low, holding RESET high for exactly 210ms after recovery.
This device belongs to the MAX6832–MAX6840 family with fixed-threshold variants and integrates an internal 20kΩ pullup on MR, eliminating external components. It draws only 7.5µA typical supply current at 1.2V, enabling use in always-on battery-backed subsystems without compromising runtime.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 1.575V ±2.5% - ensures reliable detection of brownout in 1.6V nominal core supplies |
| Reset Timeout Period | 210ms - provides sufficient hold time for slow-ramping digital systems to stabilize |
| Supply Voltage Range | 0.75V to 3.6V - supports operation during deep brownout while maintaining valid RESET output |
| Supply Current | 7.5µA (typ) at 1.2V - enables multi-year battery life in coin-cell–powered IoT sensors |
| Output Type | Push-pull active-high - drives µP reset pins directly without external pullup or level-shifting |
| MR Input | Debounced, internal 20kΩ pullup - eliminates need for external RC filter or logic gate |
| Reset Propagation Delay | 60µs max - ensures fast response to supply collapse before system state corruption |
Pinout & Package
MAX6836VXSD3+T is housed in a 4-pin SC70-4 package (2.0mm × 2.1mm, 0.65mm pitch), compatible with standard reflow profiles and space-constrained PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for all internal circuitry and reset comparator |
| 2 | RESET | Push-pull active-high output - drives high during reset assertion; sinks current when low |
| 3 | MR | Active-low debounced manual reset input - internally pulled up to VCC; requires no external components |
| 4 | VCC | Supply and monitored voltage input - powers the IC and serves as the reference for threshold detection |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed 1.575V threshold | Eliminates external resistor networks and calibration steps in production test |
| 210ms fixed timeout | Matches typical boot sequence timing of ARM Cortex-M0/M3 microcontrollers |
| Guaranteed RESET validity to VCC = 0.75V | Ensures deterministic reset behavior even during severe undervoltage conditions |
| 7.5µA supply current | Reduces quiescent power by >90% versus legacy reset ICs, critical for energy-harvesting designs |
| SC70-4 footprint | Enables placement in <1.5mm² board area - ideal for wearables and medical patches |
Applications
| Battery-Powered Sensor Node | Low-Voltage Microcontroller System |
|---|---|
Use Scenario: A coin-cell–powered environmental sensor samples temperature every 5 minutes and transmits via BLE only upon threshold breach. IC Role / Device Role / Timing Role: MAX6836VXSD3+T monitors the 1.5V LDO output powering the MCU and radio, asserting RESET if voltage sags below 1.575V during transmit burst. Use Value: Prevents firmware crash due to undervoltage-induced flash write corruption during BLE packet transmission. |
Use Scenario: An industrial controller uses a 1.2V core supply for its ARM-based SoC, with strict power sequencing requirements. IC Role / Device Role / Timing Role: MAX6836VXSD3+T provides active-high reset to the SoC's nRESET pin, synchronized to 1.2V rail stabilization with 210ms hold time. Use Value: Guarantees clean processor initialization without requiring external timing capacitors or discrete logic. |
| Portable Medical Device | Wearable Health Monitor |
Use Scenario: A handheld glucose meter operates from a single AAA alkaline cell, whose voltage declines from 1.6V to 0.9V over service life. IC Role / Device Role / Timing Role: MAX6836VXSD3+T supervises the regulated 1.5V supply, asserting RESET when VCC drops below 1.575V to halt measurement and prevent erroneous readings. Use Value: Ensures diagnostic integrity by disabling analog front-end and ADC before supply margin is exhausted. |
Use Scenario: A wrist-worn ECG patch uses a rechargeable Li-ion cell with 2.5V–4.2V range, stepped down to 1.2V for the MCU. IC Role / Device Role / Timing Role: MAX6836VXSD3+T monitors the 1.2V rail and interfaces directly to the MCU's active-high reset input via push-pull drive. Use Value: Removes need for external level shifter or pullup resistor, reducing BOM count and layout complexity in 8mm × 12mm PCB. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6836VXSD1+T | Same package and threshold, but 1.5ms reset timeout instead of 210ms | Suitable for faster-booting MCUs where long reset hold is unnecessary | Select when system startup timing budget is tight and 1.5ms suffices for power rail stabilization |
| MAX6316HUT46+T | 1.6V threshold, 200ms timeout, SOT-23-5 package, no MR input | Lacks manual reset functionality and uses larger 5-pin footprint | Choose only if MR is unused and board space allows SOT-23-5; not drop-in compatible |
Compared with MAX6836VXSD3+T, the MAX6836VXSD1+T offers identical electrical interface and footprint but shorter reset duration-ideal for rapid-cycle embedded systems-while the MAX6316HUT46+T trades MR support and SC70-4 size for slightly tighter threshold tolerance (±1.5%) at the cost of pin count and layout flexibility.
Availability
MAX6836VXSD3+T is available at Aetrix Electronics and suitable for portable medical devices, battery-powered sensor nodes, and low-voltage microcontroller systems requiring stable component supply across extended product lifecycles.
Supply support for MAX6836VXSD3+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 is a semiconductor company specializing in analog and mixed-signal ICs for power management, sensing, and interface applications, now part of Analog Devices.
The MAX6832–MAX6840 product line delivers ultra-low-voltage reset supervision for next-generation portable and energy-constrained electronics, targeting applications where supply rails fall below 1.8V and quiescent current must be minimized.
FAQ
What is the exact reset threshold voltage of MAX6836VXSD3+T?
The MAX6836VXSD3+T has a factory-set reset threshold of 1.575V, with ±2.5% accuracy over the full -40°C to +85°C operating temperature range. This value is defined by the "V" suffix in the part number and is trimmed during production to meet specification without user adjustment.
Does MAX6836VXSD3+T support manual reset functionality?
Yes, MAX6836VXSD3+T includes a debounced manual reset input (MR) with an internal 20kΩ pullup resistor to VCC. Pulling MR low forces an immediate reset, and the device holds RESET high for the full 210ms timeout after MR is released, eliminating need for external debounce circuitry.
What is the minimum VCC required for MAX6836VXSD3+T to assert a valid RESET output?
MAX6836VXSD3+T guarantees valid active-high RESET output down to VCC = 0.75V. Below this voltage, the push-pull driver may not maintain full VOH specification, so system design must ensure critical reset actions complete above 0.75V.
Can MAX6836VXSD3+T be used with a 1.2V supply rail?
Yes, MAX6836VXSD3+T is explicitly rated for operation with 1.2V nominal supplies. Its 1.575V threshold is appropriate for monitoring 1.6V LDO outputs that feed 1.2V cores, and it draws only 7.5µA at 1.2V, making it ideal for such configurations.
Is MAX6836VXSD3+T pin-compatible with other devices in the MAX6832–MAX6840 family?
MAX6836VXSD3+T shares the same SC70-4 pinout with MAX6835 and MAX6837, differing only in reset polarity and MR/RESET-IN configuration. It is not pin-compatible with SC70-3 variants (e.g., MAX6832/MAX6833) or RESET-IN–based parts (e.g., MAX6838/MAX6839).
MAX6836VXSD3+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-82A, SOT-343
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 1.665V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active High
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-4
MAX6836VXSD3+T FAQ
1.How can I place an order for MAX6836VXSD3+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6836VXSD3+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 MAX6836VXSD3+T reliable?
The price and inventory of MAX6836VXSD3+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6836VXSD3+T is usually 5 days.
3.What payment methods are accepted for MAX6836VXSD3+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6836VXSD3+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6836VXSD3+T?
MAX6836VXSD3+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6836VXSD3+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 MAX6836VXSD3+T?
For technical support, including MAX6836VXSD3+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6836VXSD3+T requirements.
6.How does Aetrix verify that MAX6836VXSD3+T is sourced from the original manufacturer or authorized distributors?
All MAX6836VXSD3+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 MAX6836VXSD3+T meets industry standards.
7.What is the process for return or replacement of MAX6836VXSD3+T?
All MAX6836VXSD3+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6836VXSD3+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 MAX6836VXSD3+T part is unused and in its original packaging.
Return procedure for MAX6836VXSD3+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6836VXSD3+T Tags
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