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Analog Devices Inc./Maxim Integrated MAX6382XR43D2-T
- Part No.:
- MAX6382XR43D2-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
MAX6382XR43D2-T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:12,500
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Product details
Overview
MAX6382XR43D2-T from Maxim Integrated is a push-pull active-high microprocessor supervisory circuit with factory-set 4.30V reset threshold, 20ms minimum reset timeout, and 3μA supply current at +1.8V. It monitors VCC in low-power systems and asserts RESET high during brownout or power-up faults, ensuring reliable μP initialization in battery-powered instrumentation and industrial controllers.
For engineers reviewing the MAX6382XR43D2-T datasheet, MAX6382XR43D2-T pinout, MAX6382XR43D2-T application, or MAX6382XR43D2-T equivalent, key selection criteria include its active-high push-pull output, ±2.5% threshold accuracy over –40°C to +125°C, guaranteed valid operation down to VCC = 1V, and SC70-3 package compatibility with space-constrained embedded designs.
Technical Context
The MAX6382XR43D2-T implements a precision bandgap-based voltage comparator with internal 4.30V threshold reference and a monostable timer for fixed 20ms reset assertion after VCC recovery. Its active-high push-pull output drives directly into μP reset inputs without external pullup components.
It operates across 1.0V–5.5V VCC range and guarantees correct logic state of RESET output down to VCC = 1V. The device features negative-going VCC transient immunity up to 100mV overdrive with sub-40µs response delay, enabling robust operation in electrically noisy environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 4.30V (nominal), ±2.5% over –40°C to +125°C - ensures accurate brownout detection across automotive/industrial temperature range |
| Reset Timeout | 20ms (minimum) - provides sufficient hold time for μP core stabilization after power recovery |
| Supply Current | 3μA at +1.8V - enables multi-year battery life in portable monitoring devices |
| VCC Operating Range | 1.0V to 5.5V - supports direct interface with 1.2V, 1.8V, 3.3V, and 5V logic domains |
| Output Type | Active-high push-pull - eliminates need for external pullup resistor and reduces BOM count |
| Reset Output Validity | Guaranteed down to VCC = 1V - maintains deterministic reset state during deep brownout conditions |
| Transient Immunity | Rejects <40µs negative VCC glitches ≥100mV below threshold - prevents false resets in noisy power rails |
Pinout & Package
MAX6382XR43D2-T is housed in a 3-pin SC70 package (outline 21-0075, land pattern 90-0208), optimized for high-density PCB layouts. Pin 1 is RESET (active-high push-pull output), Pin 2 is VCC (supply input), and Pin 3 is GND (ground reference).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RESET | Active-high push-pull output; drives high during fault condition and remains high for 20ms after VCC recovery |
| 2 | VCC | Main supply input; powers internal comparator and timer; monitored for reset assertion |
| 3 | GND | Analog/digital ground reference; must be connected to system ground plane for stable threshold accuracy |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed 4.30V threshold | Eliminates external resistor divider and calibration effort for precise 3.3V/5V rail monitoring |
| 20ms fixed reset timeout | Matches typical μP power-on reset timing requirements without requiring external RC timing components |
| 3μA supply current at 1.8V | Reduces quiescent power in always-on sensor nodes and IoT edge devices |
| Push-pull active-high output | Directly interfaces with ARM Cortex-M, PIC, and MSP430 reset inputs without level-shifting or pullup resistors |
| –40°C to +125°C operation | Validated for under-hood automotive, industrial PLC, and outdoor metering applications |
Applications
| Industrial Sensor Node | Automotive Body Control Module |
|---|---|
Use Scenario: Battery-powered temperature/humidity sensor transmitting data via LoRaWAN every 15 minutes. IC Role / Device Role / Timing Role: Supervises 3.3V LDO output and asserts active-high RESET to MSP430F5438A during brownout events. Use Value: 3μA quiescent current extends 2xAA battery life beyond 5 years; 4.30V threshold prevents premature reset during 3.3V rail sag under RF transmit load. | Use Scenario: Central body controller managing door locks, lighting, and window motors in passenger vehicles. IC Role / Device Role / Timing Role: Monitors 5V system rail and triggers active-high reset to S32K144 MCU during cold-crank voltage dip. Use Value: ±2.5% threshold accuracy ensures reliable reset at 4.30V across full automotive temperature range; 20ms timeout satisfies ISO 16750-2 cold-crank recovery timing. |
| Medical Point-of-Care Analyzer | Smart Energy Meter |
Use Scenario: Portable blood glucose analyzer with LCD display and Bluetooth LE connectivity. IC Role / Device Role / Timing Role: Resets ADuCM3029 microcontroller when 1.8V core supply drops below 4.30V during battery depletion. Use Value: Active-high push-pull output eliminates external pullup, reducing component count in compact 4-layer PCB; guaranteed operation down to VCC = 1V prevents spurious reset during final battery discharge phase. | Use Scenario: DIN-rail mounted electricity meter with isolated RS-485 and NB-IoT modem. IC Role / Device Role / Timing Role: Supervises auxiliary 3.3V supply powering metrology ADC and real-time clock. Use Value: 20ms reset timeout aligns with IEC 62056-21 power-fail recovery requirements; SC70-3 footprint saves space on crowded meter control board. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6326XR43D2+T | Same 4.30V threshold and 20ms timeout, but uses older architecture with 10μA ICC at +1.8V and no AEC-Q100 qualification. | Lacks guaranteed –40°C to +125°C performance validation; not suitable for automotive or extended-temperature industrial use. | Select MAX6382XR43D2-T for new designs requiring lowest power and full temperature-grade assurance. |
| TPS3123E18DBVR | 4.32V threshold, 200ms timeout, 1.6μA ICC at +1.8V, active-high push-pull, but only rated to +85°C ambient. | Insufficient temperature margin for under-hood or industrial enclosure deployments; longer timeout may delay system recovery. | Choose MAX6382XR43D2-T when operating above +85°C or when strict 20ms timing is required. |
Compared with MAX6326XR43D2+T and TPS3123E18DBVR, the MAX6382XR43D2-T delivers superior thermal robustness, lower quiescent current, and tighter threshold tolerance-making it the optimal choice for next-generation battery-powered and automotive-qualified systems where reliability and power efficiency are critical.
Availability
MAX6382XR43D2-T is available at Aetrix Electronics and suitable for industrial sensor nodes, automotive body control modules, medical point-of-care analyzers, and smart energy meters requiring stable component supply and long-term lifecycle support.
Supply support for MAX6382XR43D2-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 demanding industrial, automotive, and medical applications.
The MAX6381–MAX6390 family was developed specifically for ultra-low-power microprocessor supervision in battery-operated and thermally harsh environments, emphasizing threshold accuracy, minimal ICC, and guaranteed operation down to 1V VCC.
FAQ
What is the exact reset threshold voltage of the MAX6382XR43D2-T?
The MAX6382XR43D2-T has a factory-set nominal reset threshold of 4.30V, with ±2.5% tolerance over the full –40°C to +125°C temperature range. This value is confirmed in the Reset Thresholds table of the datasheet (suffix "43" corresponds to 4.30V nominal), and applies specifically to the MAX6382 variant with XR prefix and D2 timeout.
Does the MAX6382XR43D2-T support manual reset functionality?
No, the MAX6382XR43D2-T does not include a manual reset (MR) input. Only MAX6384/MAX6385/MAX6386 and MAX6390 variants feature MR; the MAX6382 is a 3-pin device with RESET, VCC, and GND only. Its pinout and functional description confirm no MR terminal is present.
What package type and dimensions does the MAX6382XR43D2-T use?
The MAX6382XR43D2-T uses a 3-pin SC70 package (outline number 21-0075, land pattern 90-0208), measuring 2.0mm × 2.1mm × 0.95mm. This RoHS-compliant, lead-free package is specified in the Ordering Information table and Pin Configurations section of the datasheet.
Can the MAX6382XR43D2-T monitor a second voltage rail?
No, the MAX6382XR43D2-T does not support auxiliary voltage monitoring. Only MAX6387/MAX6388/MAX6389 variants include the RESET IN pin for dual-rail supervision. The MAX6382 is a single-supply monitor with VCC-only input, as confirmed in the Selector Guide and Pin Description tables.
Is the MAX6382XR43D2-T qualified for automotive applications?
The MAX6382XR43D2-T is not explicitly AEC-Q100 qualified; only parts with "/V" suffix (e.g., MAX6382XR43D2/V+T) carry automotive qualification. The "-T" suffix indicates tape-and-reel packaging, and the absence of "/V" confirms this variant is intended for industrial and commercial applications per the Ordering Information table.
MAX6382XR43D2-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 4.3V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active High
- Reset Timeout:
- 20ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-3
MAX6382XR43D2-T FAQ
1.How can I place an order for MAX6382XR43D2-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6382XR43D2-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 MAX6382XR43D2-T reliable?
The price and inventory of MAX6382XR43D2-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6382XR43D2-T is usually 5 days.
3.What payment methods are accepted for MAX6382XR43D2-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6382XR43D2-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6382XR43D2-T?
MAX6382XR43D2-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6382XR43D2-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 MAX6382XR43D2-T?
For technical support, including MAX6382XR43D2-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6382XR43D2-T requirements.
6.How does Aetrix verify that MAX6382XR43D2-T is sourced from the original manufacturer or authorized distributors?
All MAX6382XR43D2-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 MAX6382XR43D2-T meets industry standards.
7.What is the process for return or replacement of MAX6382XR43D2-T?
All MAX6382XR43D2-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6382XR43D2-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 MAX6382XR43D2-T part is unused and in its original packaging.
Return procedure for MAX6382XR43D2-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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