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Analog Devices Inc./Maxim Integrated MAX6385XS30D3-T
- Part No.:
- MAX6385XS30D3-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-82A, SOT-343
- Datasheet:
-
MAX6385XS30D3-T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-4
- Quantity:
- Payment:
- Shipping:
Inventory:4,171
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Product details
Overview
MAX6385XS30D3-T from Maxim Integrated is a low-power microprocessor supervisory circuit with active-high push-pull reset output, factory-set 3.00V reset threshold (±2.5% over –40°C to +125°C), 140ms minimum VCC reset timeout, and integrated debounced manual reset input (MR). It monitors single-supply voltage in battery-powered embedded systems, ensuring reliable μP initialization during power-up, brownout, or manual intervention.
For engineers reviewing the MAX6385XS30D3-T datasheet, MAX6385XS30D3-T pinout, MAX6385XS30D3-T application, or MAX6385XS30D3-T equivalent, key selection criteria include its 3.00V threshold accuracy, 140ms reset hold time, MR input compatibility with TTL/CMOS logic, guaranteed valid reset down to VCC = 1V, and 4-pin SC70 package footprint.
Technical Context
The MAX6385XS30D3-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 enforces a fixed 140ms minimum reset assertion after VCC recovery or MR release.
It features an internal 63kΩ pullup on the MR pin, supports negative-going VCC transient immunity up to 100mV overdrive, and guarantees correct RESET logic state for VCC ≥ 1V - enabling robust operation in low-voltage portable designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 3.00V (nominal), ±2.5% over –40°C to +125°C - ensures accurate brownout detection across automotive and industrial temperature ranges |
| VCC Reset Timeout | 140ms (min) - holds reset long enough for stable clock and supply settling before μP release |
| Supply Current | 3μA at +1.8V - enables multi-year operation in coin-cell–powered IoT sensors |
| Reset Output Type | Active-high push-pull - eliminates need for external pullup resistor and simplifies interface to μP reset input |
| Manual Reset Input | Debounced MR with 63kΩ internal pullup - allows direct connection of momentary switch without external RC network |
| Operating Voltage Range | 1.0V to 5.5V - supports operation down to near-dead-battery conditions while maintaining valid reset state |
| Package | 4-pin SC70 (X4+1 outline) - 1.6mm × 1.6mm footprint ideal for space-constrained portable PCBs |
Pinout & Package
The MAX6385XS30D3-T is housed in a RoHS-compliant 4-pin SC70 package (outline 21-0098, land pattern 90-0187), measuring 1.6mm × 1.6mm × 0.95mm with gull-wing leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCC | Primary supply input and monitored voltage source - must be decoupled with 0.1µF capacitor near pin for transient immunity |
| 2 | RESET | Active-high push-pull output - drives high during reset assertion; sinks current when deasserted; no external pullup required |
| 3 | MR | Active-low manual reset input - internally pulled up to VCC; driven low to force reset; immune to <100ns glitches |
| 4 | GND | Analog/digital ground reference - must be connected to system ground plane with low-inductance path |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed reset threshold | 3.00V with ±2.5% tolerance over full temperature range - eliminates need for external resistor divider calibration |
| Guaranteed reset validity | Operates correctly down to VCC = 1V - ensures deterministic reset behavior during deep brownout |
| Integrated MR pullup | 63kΩ internal resistor - enables direct switch-to-ground connection without discrete components |
| Negative-going VCC transient immunity | Rejects transients ≤100mV amplitude - prevents spurious resets in noisy power environments |
| Low quiescent current | 3μA at 1.8V - extends battery life in always-on monitoring applications |
Applications
| Portable Medical Sensors | Industrial PLC I/O Modules |
|---|---|
Use Scenario: Battery-powered glucose monitor with ARM Cortex-M0+ MCU requiring reliable cold-start and low-battery reset. IC Role / Device Role / Timing Role: Supervises 3.0V LDO output; asserts active-high RESET until VCC stabilizes post-power-up and holds for 140ms. Use Value: Prevents firmware execution before ADC reference and RF transceiver power rails settle, eliminating sensor read errors. | Use Scenario: DIN-rail mounted digital input module powered by 24VDC-to-3.3V isolated converter. IC Role / Device Role / Timing Role: Monitors 3.3V logic rail; triggers reset on undervoltage or via front-panel reset button (MR). Use Value: Ensures deterministic state recovery after field-induced brownouts, meeting IEC 61000-4-2/4-4 immunity requirements. |
| Automotive Body Control Units | Smart Home Hub Power Management |
Use Scenario: 12V battery–supplied BCM with dual-rail (5V/3.3V) power tree and AEC-Q100 compliance requirement. IC Role / Device Role / Timing Role: Resets microcontroller when 3.3V domain drops below 3.00V; MR tied to diagnostic port for service-mode reinitialization. Use Value: Meets automotive cold-crank voltage dip immunity (ISO 16750-2) with validated operation down to VCC = 1V. | Use Scenario: Wi-Fi–enabled home automation hub using Li-ion backup with USB-C primary input. IC Role / Device Role / Timing Role: Supervises 3.3V system rail; provides manual reset via Bluetooth command (driving MR through GPIO). Use Value: Enables remote firmware recovery without physical access, leveraging debounced MR input to prevent false triggers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6326XR30D3-T | Same 3.00V threshold and 140ms timeout, but active-low open-drain output and no MR input | Requires external pullup resistor; unsuitable where manual reset or active-high interface is mandatory | Select only if board layout already uses open-drain topology and MR functionality is unnecessary |
| TLV803EB30DBZR | 3.00V threshold, 140ms timeout, active-high push-pull, but higher 8μA ICC at 1.8V and no MR input | Lacks manual reset capability; not qualified for automotive temperature range (–40°C to +125°C) | Use in cost-sensitive consumer applications where MR is unused and extended temperature operation is not required |
Compared with MAX6385XS30D3-T, MAX6326XR30D3-T requires external biasing and omits MR, while TLV803EB30DBZR trades lower power for missing MR and reduced thermal qualification - making MAX6385XS30D3-T the sole choice for compact, MR-enabled, automotive-grade 3.00V supervision.
Availability
MAX6385XS30D3-T is available at Aetrix Electronics and suitable for portable medical sensors, industrial PLC I/O modules, automotive body control units, and smart home hub power management requiring stable component supply and long-term lifecycle support.
Supply support for MAX6385XS30D3-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 μP reset circuits optimized for battery-powered, automotive, and industrial systems demanding ultra-low ICC, guaranteed reset validity down to 1V, and AEC-Q100 qualification.
FAQ
What is the exact reset threshold voltage and tolerance for MAX6385XS30D3-T?
The MAX6385XS30D3-T has a factory-set nominal reset threshold of 3.00V, with guaranteed tolerance of ±2.5% over the full operating temperature range of –40°C to +125°C. This is confirmed in the Electrical Characteristics table under "VCC Reset Threshold" with VTH = 2.93V (min), 3.00V (typ), and 3.08V (max) at +25°C, and ±2.5% drift across temperature.
Does MAX6385XS30D3-T support manual reset, and how is it implemented?
Yes, MAX6385XS30D3-T includes a debounced manual reset input (MR) on Pin 3. It features an internal 63kΩ pullup resistor to VCC, allowing direct connection of a normally open momentary switch to GND. The device asserts RESET for 140ms after MR is released, and rejects glitches shorter than 100ns - eliminating need for external debounce circuitry.
What package type and dimensions does MAX6385XS30D3-T use?
MAX6385XS30D3-T is supplied in a 4-pin SC70 package (outline number 21-0098, land pattern 90-0187), measuring 1.6mm × 1.6mm × 0.95mm with gull-wing leads. This RoHS-compliant, lead-free package is optimized for high-density PCB layouts in portable electronics.
Can MAX6385XS30D3-T operate reliably at very low supply voltages?
Yes, MAX6385XS30D3-T guarantees correct reset output logic state down to VCC = 1.0V, as specified in Absolute Maximum Ratings and Electrical Characteristics. This enables fail-safe operation during deep brownout events common in battery-depleted systems, unlike many competitors that cease valid output below 1.6V.
Is MAX6385XS30D3-T qualified for automotive applications?
No, MAX6385XS30D3-T is not automotive-qualified. While it operates from –40°C to +125°C, the "/V" suffix (e.g., MAX6385XS30D3/V+T) denotes AEC-Q100 qualification. The "-T" suffix indicates tape-and-reel packaging only; automotive versions require explicit /V marking in the part number and are listed separately in the Ordering Information table.
MAX6385XS30D3-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-82A, SOT-343
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 3V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active High
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-4
MAX6385XS30D3-T FAQ
1.How can I place an order for MAX6385XS30D3-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6385XS30D3-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 MAX6385XS30D3-T reliable?
The price and inventory of MAX6385XS30D3-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6385XS30D3-T is usually 5 days.
3.What payment methods are accepted for MAX6385XS30D3-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6385XS30D3-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6385XS30D3-T?
MAX6385XS30D3-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6385XS30D3-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 MAX6385XS30D3-T?
For technical support, including MAX6385XS30D3-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6385XS30D3-T requirements.
6.How does Aetrix verify that MAX6385XS30D3-T is sourced from the original manufacturer or authorized distributors?
All MAX6385XS30D3-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 MAX6385XS30D3-T meets industry standards.
7.What is the process for return or replacement of MAX6385XS30D3-T?
All MAX6385XS30D3-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6385XS30D3-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 MAX6385XS30D3-T part is unused and in its original packaging.
Return procedure for MAX6385XS30D3-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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