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Analog Devices Inc./Maxim Integrated MAX6382XR44D2-T
- Part No.:
- MAX6382XR44D2-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
MAX6382XR44D2-T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,917
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Product details
Overview
MAX6382XR44D2-T from Maxim Integrated is a push-pull active-high microprocessor supervisory circuit with factory-set 4.38V reset threshold and 20ms minimum reset timeout, operating from +1.0V to +5.5V supply while consuming only 3μA at +1.8V. It guarantees valid reset output down to VCC = 1V and is used in battery-powered embedded systems requiring precise power-on reset control.
For engineers reviewing the MAX6382XR44D2-T datasheet, MAX6382XR44D2-T pinout, MAX6382XR44D2-T application, or MAX6382XR44D2-T equivalent, key selection criteria include reset threshold accuracy (±2.5% over -40°C to +125°C), low quiescent current, SC70-3 package footprint, and compatibility with critical μP power-up sequencing in space-constrained designs.
Technical Context
The MAX6382XR44D2-T implements a precision voltage comparator monitoring VCC against a trimmed internal reference, with hysteresis and temperature-compensated threshold (60ppm/°C tempco). Its internal timer generates a fixed 20ms reset assertion window after VCC rises above 4.38V.
No manual reset (MR) or auxiliary RESET IN inputs are present - this variant is a dedicated single-supply monitor with active-high push-pull output, ensuring immediate logic-level compatibility with μP reset inputs without external pullups.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 4.38V nominal (±2.5% over -40°C to +125°C); ensures reliable reset assertion during 4.5V system brownout |
| Reset Timeout | 20ms minimum; provides sufficient hold time for 8-bit and 16-bit microcontrollers to complete internal initialization |
| Supply Voltage Range | +1.0V to +5.5V; supports operation down to near-dead-battery conditions while maintaining reset validity |
| Quiescent Current | 3μA at +1.8V; enables multi-year operation in coin-cell–powered IoT sensors |
| Output Type | Active-high push-pull; drives μP reset pin directly without external components or level translation |
| Operating Temperature | -40°C to +125°C; qualified for industrial and automotive under-hood applications |
| Reset Output Validity | Guaranteed down to VCC = 1V; prevents spurious release during deep undervoltage recovery |
Pinout & Package
MAX6382XR44D2-T is housed in a 3-pin SC70 package (outline 21-0075, land pattern 90-0208), measuring 2.0mm × 2.1mm × 0.95mm, optimized for ultra-compact PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RESET | Active-high push-pull output; asserts high during reset, deasserts low when VCC ≥ 4.38V for ≥20ms |
| 2 | VCC | Main supply input and monitored voltage rail; accepts 1.0V–5.5V with internal bandgap reference |
| 3 | GND | Analog/digital ground reference; must be connected to system ground plane for accurate threshold sensing |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed reset threshold | 4.38V ±2.5% over full temperature range eliminates need for external resistor dividers or calibration |
| Ultra-low supply current | 3μA at 1.8V enables use in energy-harvesting and long-life battery applications without compromising supervision integrity |
| Valid reset output at low VCC | Guaranteed correct logic state down to VCC = 1V prevents premature μP release during slow-ramp or failing supply conditions |
| High noise immunity | Negative-going VCC transient rejection up to 35µs at 100mV overdrive avoids false resets in electrically noisy environments |
| Small-footprint packaging | 3-pin SC70 occupies <4.3mm² board area - ideal for wearables, medical patches, and miniaturized edge nodes |
Applications
| Portable Medical Sensors | Industrial PLC I/O Modules |
|---|---|
Use Scenario: Continuous glucose monitor powered by CR2032 coin cell with cold-temperature startup requirement. IC Role / Device Role / Timing Role: Supervises VCC during battery ramp-up and brownout; asserts active-high reset until stable 3.3V rail is confirmed for 20ms. Use Value: Prevents firmware crash during low-VCC startup; 3μA quiescent current extends battery life beyond 2 years. | Use Scenario: DIN-rail mounted analog input module exposed to 40–85°C ambient with 24VDC supply fluctuations. IC Role / Device Role / Timing Role: Monitors local 5V LDO output feeding microcontroller; triggers reset on dips below 4.38V caused by load transients. Use Value: ±2.5% threshold accuracy over temperature ensures consistent trip point across operating range without recalibration. |
| Automotive Body Control Units | Smart Energy Meters |
Use Scenario: Door module subjected to load dump and cold-crank conditions (-40°C to +125°C). IC Role / Device Role / Timing Role: Provides AEC-Q100-compliant reset supervision for MCU; active-high output interfaces directly with Infineon AURIX TRICORE reset pin. Use Value: Valid reset assertion down to VCC = 1V prevents erratic behavior during cranking-induced voltage sag. | Use Scenario: Revenue-grade meter with dual-supply architecture (3.3V MCU + 1.8V RTC) and tamper detection. IC Role / Device Role / Timing Role: Supervises main 3.3V rail; 20ms timeout aligns with meter's secure boot sequence timing requirements. Use Value: Pin-compatible replacement for legacy MAX809; enables drop-in upgrade without layout change. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX809TRD2T | 4.63V reset threshold, 240ms timeout, same SC70-3 package | Longer timeout suits slower-booting ARM Cortex-M7 systems; higher threshold targets 5V systems | Select when system requires longer reset hold time and operates near 5V nominal |
| TPS3808G12DBVR | 4.40V threshold (±0.5%), 20ms timeout, SOT-23-3 package, 1.5μA IQ | Higher accuracy and lower current; different pinout (VCC/GND/RESET vs. RESET/VCC/GND) | Choose for tighter threshold tolerance and lowest power; requires PCB layout revision |
Compared with MAX809TRD2T and TPS3808G12DBVR, the MAX6382XR44D2-T offers optimal balance of mid-range threshold (4.38V), industry-standard 20ms timing, and guaranteed performance at 1V VCC - making it preferred for cost-sensitive, space-constrained 3.3V embedded controllers where robustness across temperature extremes is mandatory.
Availability
MAX6382XR44D2-T is available at Aetrix Electronics and suitable for portable medical sensors, industrial PLC I/O modules, automotive body control units, and smart energy meters requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6382XR44D2-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 industrial, automotive, communications, and computing markets.
The MAX6381–MAX6390 family delivers ultra-low-power, factory-trimmed reset supervisors targeting space- and energy-constrained embedded systems requiring guaranteed reset behavior across harsh environmental conditions.
FAQ
What is the exact reset threshold voltage of MAX6382XR44D2-T and how tightly is it specified?
The MAX6382XR44D2-T has a nominal reset threshold of 4.38V, with guaranteed tolerance of ±2.5% over the full operating temperature range (-40°C to +125°C). This specification is validated per the device's Electrical Characteristics table and ensures consistent trip point behavior without external calibration. The "44" suffix in MAX6382XR44D2-T explicitly denotes the 4.38V threshold variant.
Does MAX6382XR44D2-T support manual reset functionality?
No, MAX6382XR44D2-T does not include a manual reset (MR) input. It belongs to the MAX6381/MAX6382/MAX6383 subgroup, which features only VCC monitoring and an active-high push-pull RESET output. Manual reset capability is available only in MAX6384–MAX6390 variants, as confirmed in the Selector Guide and Pin Description sections of the datasheet.
What package type and dimensions does MAX6382XR44D2-T use?
MAX6382XR44D2-T uses the 3-pin SC70 package (outline number 21-0075), with footprint dimensions of 2.0mm × 2.1mm and height of 0.95mm. This RoHS-compliant, lead-free package is optimized for high-density PCB layouts and is documented in Maxim's Package Information section with land pattern number 90-0208.
Can MAX6382XR44D2-T operate reliably at VCC = 1.2V?
Yes, MAX6382XR44D2-T guarantees correct reset output logic state down to VCC = 1.0V, as stated in the Absolute Maximum Ratings and Detailed Description sections. At 1.2V, the device remains fully functional: it monitors VCC, asserts RESET high if below 4.38V, and maintains valid output drive - critical for brownout recovery in low-voltage battery systems.
Is MAX6382XR44D2-T pin-compatible with other reset ICs in the same family?
Yes, MAX6382XR44D2-T shares identical 3-pin SC70 pinout (RESET/VCC/GND) with all MAX6381/MAX6382/MAX6383 variants in the same package, including MAX6381XR44D2-T and MAX6383XR44D2-T. It is also pin-compatible with legacy MAX809/MAX810 series in SC70-3, enabling direct substitution in existing designs without layout modification.
MAX6382XR44D2-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:
- 20ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-3
MAX6382XR44D2-T FAQ
1.How can I place an order for MAX6382XR44D2-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6382XR44D2-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 MAX6382XR44D2-T reliable?
The price and inventory of MAX6382XR44D2-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6382XR44D2-T is usually 5 days.
3.What payment methods are accepted for MAX6382XR44D2-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6382XR44D2-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6382XR44D2-T?
MAX6382XR44D2-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6382XR44D2-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 MAX6382XR44D2-T?
For technical support, including MAX6382XR44D2-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6382XR44D2-T requirements.
6.How does Aetrix verify that MAX6382XR44D2-T is sourced from the original manufacturer or authorized distributors?
All MAX6382XR44D2-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 MAX6382XR44D2-T meets industry standards.
7.What is the process for return or replacement of MAX6382XR44D2-T?
All MAX6382XR44D2-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6382XR44D2-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 MAX6382XR44D2-T part is unused and in its original packaging.
Return procedure for MAX6382XR44D2-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6382XR44D2-T Tags
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MIC826SYMT-TR
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