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Analog Devices Inc./Maxim Integrated MAX6382XR44D6-T
- Part No.:
- MAX6382XR44D6-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
MAX6382XR44D6-T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,672
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Product details
Overview
MAX6382XR44D6-T from Maxim Integrated is a push-pull active-high microprocessor supervisory circuit with factory-set 4.38V reset threshold, 560ms minimum VCC reset timeout, and 3μA supply current at +1.8V. It monitors single-supply voltage in embedded systems and asserts RESET high during brownout or power-up to prevent erroneous code execution. Designed for space-constrained industrial and portable applications requiring guaranteed reset validity down to VCC = 1V.
For engineers reviewing the MAX6382XR44D6-T datasheet, MAX6382XR44D6-T pinout, MAX6382XR44D6-T application, or MAX6382XR44D6-T equivalent, key selection criteria include active-high push-pull output logic, ±2.5% reset threshold accuracy over –40°C to +125°C, SC70-3 package footprint, low-power operation, and compatibility with 1.8V–5.0V supply rails.
Technical Context
The MAX6382XR44D6-T implements a precision bandgap-based voltage comparator with internal 4.38V threshold (suffix "44") and a monolithic timer that guarantees ≥560ms reset assertion after VCC recovers above threshold (suffix "D6"). Its push-pull output drives high actively without external pullup, eliminating board-level components required by open-drain variants.
No manual reset (MR) or auxiliary RESET IN inputs are included - this variant belongs to the MAX6382 subgroup, which is functionally minimal: VCC monitoring only, active-high RESET, no secondary inputs. It shares pinout and timing behavior with other MAX6381/MAX6382/MAX6383 devices in 3-pin SC70.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 4.38V nominal (±2.5% over –40°C to +125°C); ensures reliable detection of 4.5V rail undervoltage before system instability. |
| Reset Timeout | 560ms minimum; holds processor in reset long enough for power stabilization and clock settling in 3.3V/5V systems. |
| Supply Current | 3μA at +1.8V; enables multi-year battery life in always-on IoT sensors and portable instrumentation. |
| Operating Voltage | 1.0V to 5.5V; supports valid RESET output state even during deep brownout (down to VCC = 1V). |
| Output Type | Active-high push-pull; eliminates need for external pullup resistor and reduces BOM count vs. open-drain alternatives. |
| Package | 3-pin SC70 (X3+2 outline); 1.25mm × 0.85mm footprint ideal for wearables and compact MCU modules. |
| Temp Range | –40°C to +125°C; qualified for under-hood automotive, industrial PLCs, and outdoor edge nodes. |
Pinout & Package
MAX6382XR44D6-T uses a 3-pin SC70 package (outline 21-0075, land pattern 90-0208), with pins arranged in standard top-view orientation: Pin 1 = RESET (active-high push-pull), Pin 2 = VCC, Pin 3 = GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RESET | Active-high push-pull output; drives high during fault condition; sinks/source current per spec (VOL ≤ 0.3V @ 80µA, VOH ≥ 0.8×VCC). |
| 2 | VCC | Main supply input (1.0V–5.5V); also monitored voltage source; powers internal comparator and timer. |
| 3 | GND | Analog/digital ground reference; must be low-impedance connection to maintain reset threshold accuracy. |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed reset threshold | 4.38V with ±2.5% tolerance across full temperature range - eliminates external resistor networks and calibration. |
| Guaranteed reset validity | RESET output remains logically valid down to VCC = 1V - ensures deterministic boot sequencing even during severe brownout. |
| Ultra-low quiescent current | 3μA at 1.8V enables integration into energy-harvesting and coin-cell-powered systems without compromising runtime. |
| Negative-going transient immunity | Immune to sub-10µs VCC glitches below threshold - prevents spurious resets in electrically noisy environments (e.g., motor drives). |
| SC70-3 footprint | 1.25mm × 0.85mm package reduces PCB area by >60% vs. SOT-23-3 while maintaining hand-solderability. |
Applications
| Industrial PLC I/O Modules | Medical Wearable Sensors |
|---|---|
Use Scenario: Monitoring 3.3V logic supply in DIN-rail mounted I/O expansion modules exposed to wide ambient temperature swings. IC Role / Device Role / Timing Role: Supervisory circuit asserting active-high RESET to ARM Cortex-M7 MCU during 3.3V rail dip caused by relay switching transients. Use Value: 560ms timeout ensures MCU remains held until 3.3V LDO output fully settles post-transient; ±2.5% threshold stability prevents false triggers at –40°C operating limit. | Use Scenario: Power management in continuous glucose monitor (CGM) patch using CR2032 battery and 1.8V ultra-low-power MCU. IC Role / Device Role / Timing Role: Reset supervisor detecting battery voltage sag below 4.38V to initiate graceful shutdown before EEPROM corruption occurs. Use Value: 3μA supply current extends battery life beyond 12 months; SC70-3 package fits within 8mm × 8mm wearable form factor constraints. |
| Automotive Body Control Units | Smart Energy Metering Terminals |
Use Scenario: Monitoring 5.0V supply in BCM subsystems where load dump and cold-crank events cause rapid VCC dips. IC Role / Device Role / Timing Role: Active-high push-pull reset generator ensuring Infineon AURIX TC3xx remains in reset during 5V rail collapse below 4.38V. Use Value: Valid RESET down to VCC = 1V prevents metastability during cold-crank recovery; AEC-Q100-compliant version available (MAX6382XR44D6/V+T). | Use Scenario: Dual-rail monitoring in polyphase electricity meter with separate 3.3V MCU and 5.0V ADC supplies. IC Role / Device Role / Timing Role: Dedicated supervisor for 5.0V rail, asserting RESET to metering SoC when main supply falls below 4.38V during grid sags. Use Value: Factory-set 4.38V threshold matches typical 5V regulator dropout margin; eliminates need for trimming resistors and associated layout area. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6382XR44D3-T | Same 4.38V threshold and SC70-3 package, but 140ms reset timeout (vs. 560ms) | Suitable for faster-booting systems where shorter hold time is acceptable (e.g., consumer remote controls) | Select when system power stabilization completes in <200ms and longer timeout adds unnecessary boot delay. |
| TLV803EB43DBZR | 4.3V threshold (±1%), 200ms timeout, SOT-23-3 package, 0.5μA IQ at 1.8V | Lacks AEC-Q100 qualification; lower IQ benefits battery life but reduced temperature range (–40°C to +125°C not guaranteed) | Prefer for cost-sensitive, non-automotive designs where 0.5μA IQ outweighs ±2.5% threshold tolerance and extended temp validation. |
Compared with MAX6382XR44D3-T, the MAX6382XR44D6-T provides 4× longer reset hold time for robust power sequencing in industrial controllers; versus TLV803EB43DBZR, it delivers tighter thermal stability and automotive-grade reliability at higher quiescent current - a trade-off favoring mission-critical uptime over ultra-low power.
Availability
MAX6382XR44D6-T is available at Aetrix Electronics and suitable for industrial PLCs, medical wearables, automotive body control units, and smart energy metering terminals requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6382XR44D6-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, mixed-signal, and power management ICs for demanding industrial, automotive, and computing applications.
The MAX6381–MAX6390 family delivers single/dual low-voltage, low-power μP reset circuits optimized for space-constrained, battery-sensitive, and thermally harsh environments - with emphasis on guaranteed reset behavior across full automotive temperature range.
FAQ
What is the exact reset threshold voltage of MAX6382XR44D6-T and how stable is it over temperature?
The MAX6382XR44D6-T has a nominal reset threshold of 4.38V, with ±2.5% accuracy guaranteed over the full –40°C to +125°C operating range. This stability is achieved via laser-trimmed bandgap reference and on-die compensation, ensuring consistent brownout detection without external calibration. The MAX6382XR44D6-T maintains this tolerance across all production lots and lifetime stress conditions.
Does MAX6382XR44D6-T support manual reset functionality?
No, the MAX6382XR44D6-T does not include a manual reset (MR) input. It belongs to the MAX6382 subgroup, which provides only VCC monitoring and active-high push-pull RESET output. For manual reset capability, consider MAX6384XR44D6-T (same threshold/timing, 4-pin SC70) or MAX6390XR44D6-T (dual timeout modes). The MAX6382XR44D6-T pinout contains no MR terminal.
What package type and dimensions does MAX6382XR44D6-T use?
The MAX6382XR44D6-T uses a 3-pin SC70 package (outline number 21-0075, land pattern 90-0208), measuring 1.25mm × 0.85mm × 0.55mm. It features gull-wing leads compatible with standard reflow profiles and is RoHS-compliant (+ suffix). This package offers 60% smaller footprint than SOT-23-3 while maintaining solder joint reliability in vibration-prone applications.
Can MAX6382XR44D6-T operate reliably at VCC = 1.2V?
Yes, the MAX6382XR44D6-T guarantees correct RESET output logic state down to VCC = 1.0V, including at 1.2V. Its internal comparator and driver circuitry remain functional and meet VOL/VOH specifications even at this level. This ensures deterministic boot behavior during deep brownout recovery - a critical feature confirmed in the device's Absolute Maximum Ratings and Electrical Characteristics tables for the MAX6382XR44D6-T.
Is MAX6382XR44D6-T pin-compatible with older Maxim reset ICs like MAX809?
Yes, the MAX6382XR44D6-T is pin-compatible with MAX809, MAX810, MAX803, and other legacy Maxim reset supervisors in SC70-3 and SOT-23-3 packages. It shares identical pin 1 (RESET), pin 2 (VCC), pin 3 (GND) assignment and electrical interface. However, note that MAX809 is active-low, whereas the MAX6382XR44D6-T is active-high - firmware or external logic must account for polarity inversion.
MAX6382XR44D6-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:
- 4.38V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active High
- Reset Timeout:
- 560ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-3
MAX6382XR44D6-T FAQ
1.How can I place an order for MAX6382XR44D6-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6382XR44D6-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 MAX6382XR44D6-T reliable?
The price and inventory of MAX6382XR44D6-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6382XR44D6-T is usually 5 days.
3.What payment methods are accepted for MAX6382XR44D6-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6382XR44D6-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6382XR44D6-T?
MAX6382XR44D6-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6382XR44D6-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 MAX6382XR44D6-T?
For technical support, including MAX6382XR44D6-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6382XR44D6-T requirements.
6.How does Aetrix verify that MAX6382XR44D6-T is sourced from the original manufacturer or authorized distributors?
All MAX6382XR44D6-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 MAX6382XR44D6-T meets industry standards.
7.What is the process for return or replacement of MAX6382XR44D6-T?
All MAX6382XR44D6-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6382XR44D6-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 MAX6382XR44D6-T part is unused and in its original packaging.
Return procedure for MAX6382XR44D6-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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