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Analog Devices Inc./Maxim Integrated MAX6382XR26D1+T
- Part No.:
- MAX6382XR26D1+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
MAX6382XR26D1+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,177
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Product details
Overview
MAX6382XR26D1+T from Maxim Integrated is a push-pull active-high microprocessor supervisory circuit with factory-set 2.63V reset threshold, 1ms minimum reset timeout, and 3μA supply current at +1.8V. It monitors VCC in low-power systems, asserts RESET high during brownout or power-up, and guarantees valid output down to VCC = 1V. Used in portable battery-powered equipment requiring precise voltage supervision.
For engineers reviewing the MAX6382XR26D1+T datasheet, MAX6382XR26D1+T pinout, MAX6382XR26D1+T application, or MAX6382XR26D1+T equivalent, key selection criteria include reset threshold accuracy (±2.5% over –40°C to +125°C), ultra-low quiescent current, SC70-3 package footprint, and guaranteed reset assertion validity at VCC ≥ 1V.
Technical Context
The MAX6382XR26D1+T implements a precision bandgap-based reset comparator with ±2.5% threshold tolerance across –40°C to +125°C and 60ppm/°C tempco. Its internal timer generates a fixed 1ms minimum reset timeout after VCC rises above 2.63V.
No manual reset (MR) or auxiliary RESET IN inputs are present - this variant is a dedicated single-supply monitor with active-high push-pull RESET output. The device operates from 1.0V to 5.5V and maintains correct logic state for RESET even as VCC drops to 1V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.63V (factory-set, ±2.5% over –40°C to +125°C) - ensures reliable detection of 2.5V–2.7V rail brownout |
| Reset Timeout | 1ms minimum - provides sufficient hold time for microprocessor initialization on power-up |
| Supply Current | 3μA at +1.8V - enables multi-year operation in coin-cell–powered IoT sensors |
| Operating Voltage | 1.0V to 5.5V - supports valid reset assertion down to near-dead-battery conditions |
| Output Type | Active-high push-pull - eliminates need for external pullup resistor; drives high actively |
| Reset Output Validity | Guaranteed down to VCC = 1V - ensures deterministic reset state during deep undervoltage |
| Temp Range | –40°C to +125°C - qualified for automotive under-hood and industrial control environments |
Pinout & Package
MAX6382XR26D1+T is housed in a 3-pin SC70 package (outline 21-0075, land pattern 90-0208), measuring 2.0mm × 2.1mm × 0.95mm. This RoHS-compliant, lead-free package supports reflow soldering per JEDEC J-STD-020 (260°C peak).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RESET | Active-high push-pull output - drives high during reset condition; sinks current when deasserted |
| 2 | VCC | Main supply input - powers internal circuitry and serves as monitored voltage source |
| 3 | GND | Analog/digital ground reference - must be connected to system ground plane for stable threshold operation |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed reset threshold | 2.63V with ±2.5% tolerance over full temperature range - eliminates external resistor network and calibration |
| Ultra-low supply current | 3μA at 1.8V - extends battery life in always-on monitoring applications without compromising supervision integrity |
| Valid reset output at low VCC | RESET state guaranteed down to VCC = 1V - prevents undefined processor behavior during deep discharge |
| Push-pull active-high output | No external pullup required - reduces BOM count and PCB area vs. open-drain alternatives |
| Negative-going transient immunity | Immune to sub-10µs VCC glitches below threshold - avoids spurious resets in electrically noisy environments |
Applications
| Portable Medical Sensors | Battery-Powered Data Loggers |
|---|---|
Use Scenario: Continuous ECG or glucose monitoring using coin-cell power with strict low-power budget. IC Role / Device Role / Timing Role: Supervises 2.5V analog front-end and 1.8V MCU core rail; asserts RESET high during battery sag below 2.63V. Use Value: Prevents corrupted sensor readings or firmware lockup by ensuring clean restart before voltage recovers. | Use Scenario: Remote environmental sensor node logging temperature/humidity every 5 minutes on AA batteries. IC Role / Device Role / Timing Role: Monitors main 3.3V supply; triggers 1ms reset pulse to wake and initialize MCU after brownout. Use Value: Enables reliable long-term deployment (>2 years) without field resets due to undervoltage-induced crashes. |
| Industrial PLC I/O Modules | Automotive Body Control Units |
Use Scenario: DIN-rail mounted controller with 24V-to-3.3V DC/DC supplying FPGA and interface ICs. IC Role / Device Role / Timing Role: Resets FPGA configuration logic if 3.3V rail dips below 2.63V during load transients. Use Value: Eliminates need for discrete RC reset networks while meeting IEC 61000-4-4 surge immunity requirements. | Use Scenario: Door module powered from vehicle battery (9V–16V) with local 5V/3.3V regulators. IC Role / Device Role / Timing Role: Supervises 3.3V microcontroller supply; asserts active-high RESET during cold-crank (battery dip to 6V). Use Value: AEC-Q100 qualified variant ensures robust operation across automotive temperature extremes without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX809TRD1+T | 2.93V reset threshold, same SC70-3 package, 1ms timeout, but ±3% threshold accuracy over temperature | Lacks AEC-Q100 qualification; not recommended for automotive deployments | Select when cost sensitivity outweighs need for ±2.5% accuracy or automotive qualification |
| TPS3808G01DBVR | 2.63V threshold, 1ms timeout, but 1.5μA typical ICC at 1.8V and SOT-23-3 package (larger footprint) | Higher ESD rating (4kV HBM); includes watchdog timer option in other variants | Choose for ultra-low-power designs where 1.5μA vs. 3μA matters, accepting larger SOT-23 footprint |
Compared with MAX809TRD1+T, MAX6382XR26D1+T offers tighter threshold accuracy and automotive qualification; compared with TPS3808G01DBVR, it delivers smaller SC70-3 footprint and guaranteed reset validity down to VCC = 1V - critical for deep brownout recovery in space-constrained battery systems.
Availability
MAX6382XR26D1+T is available at Aetrix Electronics and suitable for portable medical sensors, battery-powered data loggers, industrial PLC I/O modules, and automotive body control units requiring stable component supply with AEC-Q100 compliance and long-lifecycle support.
Supply support for MAX6382XR26D1+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 power, sensing, and connectivity applications, with emphasis on low-power, high-reliability solutions.
The MAX6381–MAX6390 family delivers single/dual low-voltage microprocessor supervisory circuits optimized for battery-powered, automotive, and industrial systems demanding ultra-low ICC and guaranteed reset behavior across extreme temperatures.
FAQ
What is the exact reset threshold voltage of MAX6382XR26D1+T?
The MAX6382XR26D1+T has a factory-set reset threshold of 2.63V, with guaranteed tolerance of ±2.5% over the full operating temperature range (–40°C to +125°C). This value is laser-trimmed during production and does not require external components. The "26" suffix in MAX6382XR26D1+T explicitly denotes the 2.63V threshold per Maxim's ordering guide.
Does MAX6382XR26D1+T include a manual reset input (MR)?
No, MAX6382XR26D1+T does not feature a manual reset input. It is a dedicated single-supply supervisory circuit with only VCC, GND, and active-high RESET pins. MR functionality is present only in MAX6384–MAX6386 and MAX6390 variants - confirmed by the Selector Guide and Pin Configurations section of the datasheet.
What is the minimum reset timeout period for MAX6382XR26D1+T?
The MAX6382XR26D1+T has a minimum reset timeout period of 1ms, as indicated by the "D1" suffix in its part number. This is the shortest available delay in the MAX6381–MAX6390 family and is guaranteed over temperature and voltage. The actual timeout may extend slightly due to process variation but will never fall below 1ms.
Is MAX6382XR26D1+T compatible with standard SC70-3 PCB footprints?
Yes, MAX6382XR26D1+T uses the standard 3-pin SC70 package (outline 21-0075, land pattern 90-0208) with 0.65mm pin pitch. Its mechanical dimensions (2.0mm × 2.1mm × 0.95mm) and thermal characteristics (θJA = 340.4°C/W) match industry-standard SC70-3 specifications, enabling drop-in use with existing reflow profiles and stencil designs.
What is the supply current of MAX6382XR26D1+T at 3.6V?
At VCC = 3.6V and TA = +25°C, the MAX6382XR26D1+T draws 6μA typical supply current (ICC), with a maximum of 11μA over temperature. This value is specified in the Electrical Characteristics table and reflects true quiescent consumption - no load, no switching - making it suitable for always-on monitoring in energy-harvesting systems.
MAX6382XR26D1+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.63V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active High
- Reset Timeout:
- 1ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-3
MAX6382XR26D1+T FAQ
1.How can I place an order for MAX6382XR26D1+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6382XR26D1+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 MAX6382XR26D1+T reliable?
The price and inventory of MAX6382XR26D1+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6382XR26D1+T is usually 5 days.
3.What payment methods are accepted for MAX6382XR26D1+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6382XR26D1+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6382XR26D1+T?
MAX6382XR26D1+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6382XR26D1+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 MAX6382XR26D1+T?
For technical support, including MAX6382XR26D1+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6382XR26D1+T requirements.
6.How does Aetrix verify that MAX6382XR26D1+T is sourced from the original manufacturer or authorized distributors?
All MAX6382XR26D1+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 MAX6382XR26D1+T meets industry standards.
7.What is the process for return or replacement of MAX6382XR26D1+T?
All MAX6382XR26D1+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6382XR26D1+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 MAX6382XR26D1+T part is unused and in its original packaging.
Return procedure for MAX6382XR26D1+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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