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Analog Devices Inc./Maxim Integrated MAX6382XR22D4+T
- Part No.:
- MAX6382XR22D4+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
MAX6382XR22D4+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:1,540
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Product details
Overview
MAX6382XR22D4+T from Maxim Integrated is a push-pull active-high microprocessor supervisory circuit with factory-set 2.19V reset threshold (±2.5% over –40°C to +125°C), 1120ms minimum VCC reset timeout, and 3μA supply current at +1.8V. It monitors single-supply voltage in battery-powered embedded systems and guarantees valid reset output down to VCC = 1V.
For engineers reviewing the MAX6382XR22D4+T datasheet, MAX6382XR22D4+T pinout, MAX6382XR22D4+T application, or MAX6382XR22D4+T equivalent, key selection criteria include reset threshold accuracy, low-quiescent-current operation across 1.0V–5.5V supply range, SC70-3 package compatibility, and guaranteed logic-state validity during brownout conditions.
Technical Context
The MAX6382XR22D4+T implements a precision bandgap-based voltage comparator with ±2.5% threshold accuracy over –40°C to +125°C and 60ppm/°C tempco. Its internal timer generates a fixed 1120ms minimum reset assertion period after VCC rises above 2.19V.
This device uses a push-pull active-high RESET output stage capable of sourcing 800µA at VCC ≥ 4.5V while maintaining VOH ≥ 0.8×VCC, and sinking 3.2mA with VOL ≤ 0.4V - ensuring robust interface with µP reset inputs without external pullups.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.19V (nominal), ±2.5% tolerance over –40°C to +125°C - ensures reliable power-on reset across automotive and industrial temperature ranges |
| VCC Operating Range | 1.0V to 5.5V - supports operation during deep brownout and enables use with 1.2V, 1.8V, 2.5V, 3.3V, and 5V rails |
| Supply Current | 3μA at +1.8V - extends battery life in portable equipment and IoT edge nodes |
| Reset Timeout | 1120ms (minimum) - meets extended power-rail stabilization requirements for complex SoCs and FPGAs |
| RESET Output Type | Push-pull active-high - eliminates need for external pullup resistor and provides fast, rail-to-rail logic transitions |
| Reset Assertion Validity | Guaranteed down to VCC = 1V - maintains deterministic reset behavior during severe undervoltage events |
| Package | 3-pin SC70 (X3+2 outline) - compact footprint for space-constrained PCB layouts |
Pinout & Package
MAX6382XR22D4+T is housed in a 3-pin SC70 package (outline 21-0075, land pattern 90-0208), measuring 2.0mm × 2.1mm × 0.95mm, with exposed pad not connected internally.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RESET | Active-high push-pull reset output - drives high when VCC < 2.19V or during timeout; sinks/source capability eliminates external components |
| 2 | VCC | Power supply input and monitored voltage rail - accepts 1.0V–5.5V; powers internal comparator and timer |
| 3 | GND | Analog/digital ground reference - must be connected to system ground plane for accurate threshold sensing and noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed reset threshold | 2.19V with ±2.5% accuracy over full temperature range - eliminates external resistor networks and calibration effort |
| Ultra-low quiescent current | 3μA at +1.8V - reduces standby power in always-on applications such as smart sensors and wearables |
| Guaranteed reset validity | Operates correctly down to VCC = 1V - prevents spurious release during slow power-down sequences |
| Negative-going transient immunity | Rejects VCC glitches up to 35µs duration at 100mV overdrive - improves reliability in electrically noisy environments |
| SC70-3 footprint | 2.0mm × 2.1mm body size - enables high-density routing and reduces PCB area vs. SOT-23 alternatives |
Applications
| Portable Medical Sensors | Battery-Powered IoT Nodes |
|---|---|
Use Scenario: Continuous glucose monitor powered by coin-cell battery with 1.8V LDO output. IC Role / Device Role / Timing Role: Supervises 1.8V supply and asserts active-high RESET to ARM Cortex-M0+ MCU until stable. Use Value: 3μA ICC extends battery life beyond 2 years; 2.19V threshold matches LDO dropout margin; 1120ms timeout accommodates slow LDO startup. |
Use Scenario: LoRaWAN end-node using 3.3V buck converter with variable load transients. IC Role / Device Role / Timing Role: Monitors 3.3V rail and holds MCU in reset during converter instability or brownout. Use Value: ±2.5% threshold accuracy prevents false resets under thermal drift; push-pull output drives reset net without pullup resistor. |
| Industrial PLC I/O Modules | Automotive Body Control Units |
Use Scenario: DIN-rail mounted controller with wide-input DC-DC supplying 2.5V core voltage. IC Role / Device Role / Timing Role: Provides fail-safe reset initiation during input undervoltage or cold-cranking events. Use Value: Guaranteed operation from –40°C to +125°C; 1120ms timeout covers worst-case power-rail recovery after load dump. |
Use Scenario: 12V-to-3.3V PMIC-supplied BCM module requiring AEC-Q100 compliance. IC Role / Device Role / Timing Role: Resets microcontroller during ignition cycling and battery voltage sag below 2.19V. Use Value: Matches automotive 2.2V nominal reset requirement; SC70 package withstands reflow profiles per J-STD-020. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX809TRD3+T | 2.32V reset threshold, 240ms timeout, same SC70-3 package | Shorter timeout insufficient for FPGA configuration; higher threshold may miss early brownout detection | Select when faster reset release and tighter 2.32V trip point align with system power-rail profile |
| TPS3808G125DBVR | 1.25V threshold, adjustable timeout via capacitor, SOT-23-5 package | Requires external timing capacitor and pullup; incompatible pinout and smaller threshold range | Choose only if programmable timeout and lower 1.25V threshold are mandatory; redesign required |
Compared with MAX809TRD3+T and TPS3808G125DBVR, the MAX6382XR22D4+T delivers longer 1120ms reset hold time for complex processors, tighter 2.19V threshold matching modern low-voltage rails, and true SC70-3 drop-in compatibility without external components.
Availability
MAX6382XR22D4+T is available at Aetrix Electronics and suitable for portable medical sensors, battery-powered IoT nodes, industrial PLC I/O modules, and automotive body control units requiring stable component supply and long-term production continuity.
Supply support for MAX6382XR22D4+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 was developed specifically for ultra-low-power microprocessor supervision in space- and energy-constrained systems, featuring factory-trimmed thresholds, sub-µA quiescent current, and AEC-Q100 qualified variants.
FAQ
What is the exact reset threshold voltage of MAX6382XR22D4+T?
The MAX6382XR22D4+T has a factory-set nominal reset threshold of 2.19V, with guaranteed tolerance of ±2.5% over the full operating temperature range (–40°C to +125°C). This value is derived from the "22" suffix in the part number, referencing the Reset Thresholds table where suffix 22 corresponds to VTH(nom) = 2.19V.
Does MAX6382XR22D4+T support manual reset functionality?
No, the MAX6382XR22D4+T does not include a manual reset (MR) input. Per the Selector Guide and Pin Configurations, only MAX6384/MAX6385/MAX6386/MAX6390 variants feature MR. The MAX6382XR22D4+T is a dedicated VCC-monitoring device with RESET output only - no MR pin or internal pullup resistor is present.
What is the minimum VCC voltage at which MAX6382XR22D4+T guarantees correct RESET output state?
The MAX6382XR22D4+T guarantees valid logic-level RESET output down to VCC = 1.0V. This means the active-high RESET signal remains correctly asserted or deasserted even as supply voltage collapses, preventing metastability or undefined states during brownout conditions - a critical feature confirmed in the Electrical Characteristics table.
Can MAX6382XR22D4+T be used in automotive applications?
The MAX6382XR22D4+T itself is not AEC-Q100 qualified; only variants with "/V" suffix (e.g., MAX6382XR22D4/V+T) meet automotive qualification. However, its –40°C to +125°C operating temperature range and robust transient immunity make it suitable for non-automotive industrial and extended-temperature applications where AEC-Q100 is not mandated.
What package type and dimensions does MAX6382XR22D4+T use?
The MAX6382XR22D4+T uses a 3-pin SC70 package (outline number 21-0075, land pattern 90-0208), with body dimensions of 2.0mm × 2.1mm × 0.95mm. It is RoHS-compliant ("+T" suffix), lead(Pb)-free, and compatible with standard reflow soldering profiles per J-STD-020.
MAX6382XR22D4+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:
- Active
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.19V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active High
- Reset Timeout:
- 1.12s Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-3
MAX6382XR22D4+T FAQ
1.How can I place an order for MAX6382XR22D4+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6382XR22D4+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 MAX6382XR22D4+T reliable?
The price and inventory of MAX6382XR22D4+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6382XR22D4+T is usually 5 days.
3.What payment methods are accepted for MAX6382XR22D4+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6382XR22D4+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6382XR22D4+T?
MAX6382XR22D4+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6382XR22D4+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 MAX6382XR22D4+T?
For technical support, including MAX6382XR22D4+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6382XR22D4+T requirements.
6.How does Aetrix verify that MAX6382XR22D4+T is sourced from the original manufacturer or authorized distributors?
All MAX6382XR22D4+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 MAX6382XR22D4+T meets industry standards.
7.What is the process for return or replacement of MAX6382XR22D4+T?
All MAX6382XR22D4+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6382XR22D4+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 MAX6382XR22D4+T part is unused and in its original packaging.
Return procedure for MAX6382XR22D4+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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