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Analog Devices Inc./Maxim Integrated MAX6836HXSD0+T
- Part No.:
- MAX6836HXSD0+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-82A, SOT-343
- Datasheet:
-
MAX6836HXSD0+T.pdf
- Description:
- IC MPU SUPERVISOR SC70-4
- Quantity:
- Payment:
- Shipping:
Inventory:1,469
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Product details
Overview
MAX6836HXSD0+T from Maxim Integrated is a push-pull active-high microprocessor reset circuit in SC70-4 package, designed to monitor +1.313V supply voltage with ±2.5% threshold accuracy over temperature and assert reset for 1.5ms after VCC recovery or MR deassertion. It features debounced manual reset input (MR), 7.5µA typical supply current, and guaranteed RESET validity down to VCC = 0.75V - used in portable battery-powered µP systems requiring reliable low-voltage supervision.
For engineers reviewing the MAX6836HXSD0+T datasheet, MAX6836HXSD0+T pinout, MAX6836HXSD0+T application, or MAX6836HXSD0+T equivalent, key selection criteria include its fixed 1.313V reset threshold, 1.5ms timeout, MR debounce capability, SC70-4 footprint compatibility, and push-pull active-high output drive without external pullup.
Technical Context
The MAX6836HXSD0+T implements a precision bandgap-based voltage comparator with hysteresis (0.75% of VTH) to detect VCC drops below 1.313V and trigger an active-high reset signal. Its internal 20kΩ MR pullup enables direct switch-to-ground connection without external components.
Reset assertion persists for a factory-set 1.5ms timeout after VCC rises above threshold or MR returns high; the device remains functional down to VCC = 0.75V and draws only 7.5µA at 1.8V, making it suitable for ultra-low-power brownout detection in sub-1.8V digital systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 1.313V ±2.5% over -40°C to +85°C - ensures accurate power-fail detection for 1.3V-core systems |
| Reset Timeout Period | 1.5ms - provides sufficient hold time for µP initialization after supply stabilization |
| Supply Current | 7.5µA (typ) at 1.8V - enables multi-year operation in coin-cell-powered devices |
| Operating Voltage Range | 0.75V to 3.6V - supports valid reset assertion during deep brownout down to 0.75V |
| Output Type | Push-pull active-high RESET - eliminates need for external pullup resistor on reset line |
| Manual Reset Input | Debounced MR with 20kΩ internal pullup - allows direct momentary switch interface without RC filtering |
| Package | SC70-4 - 1.25mm × 0.8mm footprint compatible with high-density portable PCB layouts |
Pinout & Package
MAX6836HXSD0+T is housed in a 4-pin SC70 package (1.25mm × 0.8mm, 0.65mm pitch). Pin 1 = GND, Pin 2 = RESET (push-pull active-high), Pin 3 = MR (debounced active-low manual reset), Pin 4 = VCC (monitored supply input).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Reference ground for all internal comparators and output stage |
| 2 | RESET | Push-pull active-high output - drives HIGH during reset; no external pullup required |
| 3 | MR | Active-low debounced manual reset input with 20kΩ internal pullup to VCC |
| 4 | VCC | Monitored supply input (0.75V–3.6V); powers device and sets reset threshold reference |
Key Features
| Feature | Design Value |
|---|---|
| Factory-set 1.313V threshold | Eliminates external resistor network for precise 1.3V core supply monitoring |
| 1.5ms fixed timeout | Guarantees µP reset hold time meets ARM Cortex-M0/M3 and RISC-V boot requirements |
| Debounced MR input | Rejects <100ns noise pulses and removes need for external RC debounce circuitry |
| 7.5µA supply current | Reduces quiescent power in always-on supervisory circuits for >10-year battery life |
| SC70-4 package | Enables placement in space-constrained wearables and IoT sensor nodes |
Applications
| Portable Medical Sensors | Industrial PLC I/O Modules |
|---|---|
Use Scenario: Wearable ECG patch operating from single CR2032 cell with 1.2–1.4V discharge profile. IC Role / Device Role / Timing Role: Monitors declining battery voltage and asserts active-high RESET to halt analog front-end and BLE radio before data corruption occurs. Use Value: Prevents firmware crash during battery brownout by guaranteeing 1.5ms reset pulse while consuming only 7.5µA between events. |
Use Scenario: DIN-rail mounted I/O module powered by isolated 1.35V DC-DC converter feeding FPGA configuration logic. IC Role / Device Role / Timing Role: Supervises FPGA core supply and triggers system-wide reset via active-high signal synchronized to 1.5ms timeout. Use Value: Ensures deterministic FPGA reconfiguration after power interruption without external timing components. |
| Smart Meter SoC Power Sequencing | Low-Power Edge AI Accelerator |
Use Scenario: Dual-supply smart meter ASIC with 1.3V core and 3.3V I/O rails, where core rail powers real-time clock and metrology engine. IC Role / Device Role / Timing Role: Dedicated supervisor for 1.3V core rail; generates active-high reset to hold SoC in reset until stable. Use Value: Matches 1.313V threshold to nominal core voltage and avoids false resets during transient load steps. |
Use Scenario: TinyML inference node using ultra-low-power MCU and neural network accelerator, powered by energy-harvested 1.3V source. IC Role / Device Role / Timing Role: Provides fail-safe reset initiation when harvested voltage dips below operational minimum. Use Value: Enables reliable cold-start from intermittent power sources due to 0.75V minimum VCC operation and 7.5µA quiescent draw. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6836HXSD3+T | Same 1.313V threshold and SC70-4 package, but 210ms reset timeout instead of 1.5ms | Suitable for systems requiring longer reset hold time during slow power ramp-up | Select when µP boot sequence exceeds 1.5ms or when interfacing with legacy peripherals needing extended reset assertion |
| MAX6316HUT46+T | 1.46V threshold, 1.6ms timeout, SOT23-5 package, no MR input | Lacks manual reset functionality and uses larger footprint; higher threshold limits use in 1.3V systems | Choose only if 1.46V threshold aligns with target supply and MR is not required in the design |
Compared with MAX6836HXSD0+T, the MAX6836HXSD3+T offers identical electrical behavior except for extended timeout, while the MAX6316HUT46+T trades MR support and low-threshold accuracy for slightly higher voltage tolerance and different packaging - neither is pin-compatible, and both require layout revision.
Availability
MAX6836HXSD0+T is available at Aetrix Electronics and suitable for portable medical sensors, industrial PLC I/O modules, and smart meter SoC power sequencing requiring stable component supply across long production lifecycles.
Supply support for MAX6836HXSD0+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.
The MAX6832–MAX6840 family was designed specifically for ultra-low-voltage microprocessor reset supervision in battery-powered and energy-constrained systems operating below 1.8V.
FAQ
What is the exact reset threshold voltage of the MAX6836HXSD0+T?
The MAX6836HXSD0+T has a factory-set reset threshold of 1.313V with ±2.5% accuracy over the full -40°C to +85°C temperature range. This value is confirmed in the Electrical Characteristics table under "Reset Threshold (VTH)" for suffix 'H', and applies directly to the MAX6836HXSD0+T part number.
Does the MAX6836HXSD0+T require an external pullup resistor on the RESET pin?
No, the MAX6836HXSD0+T features a push-pull active-high RESET output, meaning it actively drives HIGH during reset and LOW otherwise. Unlike open-drain variants, it does not require an external pullup resistor - simplifying board layout and reducing BOM count.
What is the function of the MR pin on the MAX6836HXSD0+T?
The MR pin on the MAX6836HXSD0+T is a debounced active-low manual reset input with an internal 20kΩ pullup to VCC. Pulling MR low forces an immediate reset, and the device holds RESET high for the full 1.5ms timeout after MR returns high - eliminating need for external debounce components.
Can the MAX6836HXSD0+T operate reliably below 1.0V supply voltage?
Yes, the MAX6836HXSD0+T guarantees valid active-high RESET assertion down to VCC = 0.75V. Below this level, reset functionality is not assured. Its 7.5µA supply current at 1.8V and operation down to 0.75V make it suitable for deep brownout detection in ultra-low-power systems.
What timeout period is implemented in the MAX6836HXSD0+T?
The MAX6836HXSD0+T implements a 1.5ms reset active timeout period, indicated by the 'D1' suffix in its ordering code. This fixed delay ensures the reset signal remains asserted for 1.5ms after VCC rises above 1.313V or after MR is released, meeting standard µP initialization timing requirements.
MAX6836HXSD0+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-82A, SOT-343
- Packaging:
- Bulk
- Product Status:
- Active
- 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
MAX6836HXSD0+T FAQ
1.How can I place an order for MAX6836HXSD0+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6836HXSD0+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 MAX6836HXSD0+T reliable?
The price and inventory of MAX6836HXSD0+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6836HXSD0+T is usually 5 days.
3.What payment methods are accepted for MAX6836HXSD0+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6836HXSD0+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6836HXSD0+T?
MAX6836HXSD0+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6836HXSD0+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 MAX6836HXSD0+T?
For technical support, including MAX6836HXSD0+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6836HXSD0+T requirements.
6.How does Aetrix verify that MAX6836HXSD0+T is sourced from the original manufacturer or authorized distributors?
All MAX6836HXSD0+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 MAX6836HXSD0+T meets industry standards.
7.What is the process for return or replacement of MAX6836HXSD0+T?
All MAX6836HXSD0+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6836HXSD0+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 MAX6836HXSD0+T part is unused and in its original packaging.
Return procedure for MAX6836HXSD0+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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