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Analog Devices Inc./Maxim Integrated MAX6385XS17D6-T
- Part No.:
- MAX6385XS17D6-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-82A, SOT-343
- Datasheet:
-
MAX6385XS17D6-T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-4
- Quantity:
- Payment:
- Shipping:
Inventory:1,890
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Product details
Overview
MAX6385XS17D6-T from Maxim Integrated is a push-pull active-high microprocessor supervisory circuit with factory-set 1.67V reset threshold, 560ms minimum VCC reset timeout, and manual reset input. It monitors single-supply voltages from +1.8V to +5.0V, consumes only 3μA at +1.8V, and guarantees valid reset output down to VCC = 1V. Used in portable battery-powered equipment for reliable power-on reset and brownout protection.
For engineers reviewing the MAX6385XS17D6-T datasheet, MAX6385XS17D6-T pinout, MAX6385XS17D6-T application, or MAX6385XS17D6-T equivalent, key selection criteria include reset threshold accuracy (±2.5% over −40°C to +125°C), MR input pullup resistance (63kΩ), open-drain vs. push-pull compatibility, and SC70-4 package footprint constraints.
Technical Context
The MAX6385XS17D6-T implements a precision bandgap-based voltage comparator with ±2.5% threshold accuracy across −40°C to +125°C, paired with a temperature-stable monostable timer for 560ms minimum reset assertion after VCC recovery. Its internal 63kΩ MR pullup resistor enables direct connection of a momentary switch to GND without external components.
This device operates as a single-voltage supervisor with no auxiliary RESET IN input-unlike MAX6387–MAX6389-and uses an active-high push-pull RESET output that drives high during fault conditions. Reset deassertion occurs only after both VCC exceeds 1.67V and the 560ms timeout elapses, ensuring μP initialization stability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 1.67V nominal (±2.5% over −40°C to +125°C); ensures reliable detection of 1.8V supply brownout. |
| VCC Reset Timeout | 560ms minimum; holds μP in reset long enough for power stabilization and clock lock. |
| Supply Current | 3μA at +1.8V; enables multi-year operation in coin-cell–powered IoT sensors. |
| MR Input Pullup | 63kΩ internal resistor; eliminates need for external pullup when using momentary switch. |
| Operating Voltage | +1.0V to +5.5V; supports valid reset assertion even during deep brownout down to 1V. |
| Output Type | Active-high push-pull; drives high during reset, compatible with standard μP /RESET inputs. |
| Temp Range | −40°C to +125°C; qualified for industrial and automotive under-hood applications. |
Pinout & Package
MAX6385XS17D6-T is housed in a RoHS-compliant 4-pin SC70 package (outline 21-0098, land pattern 90-0187), measuring 2.0mm × 2.1mm × 0.95mm. The compact footprint supports high-density PCB layouts in space-constrained portable designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCC | Primary supply input and monitored voltage rail; must be ≥1.0V for functional reset output. |
| 2 | RESET | Active-high push-pull output; asserts high during VCC undervoltage or MR activation. |
| 3 | MR | Active-low manual reset input; internally pulled up to VCC via 63kΩ resistor. |
| 4 | GND | Ground reference for all internal comparators, timers, and output drivers. |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed reset threshold | 1.67V with ±2.5% tolerance over full temperature range-eliminates external resistor divider calibration. |
| Guaranteed reset validity down to VCC = 1V | Ensures deterministic μP state during deep brownout, preventing spurious code execution. |
| Debounced manual reset input | Internal 63kΩ pullup and 1µs MR pulse-width requirement suppresses mechanical switch bounce. |
| Negative-going VCC transient immunity | Rejects sub-10µs glitches below reset threshold-reduces false resets in noisy power environments. |
| Low-power operation | 3μA supply current at 1.8V enables integration into always-on battery-backed systems. |
Applications
| Portable Medical Sensors | Industrial PLC I/O Modules |
|---|---|
|
Use Scenario: Wearable ECG patch operating from CR2032 coin cell with intermittent RF transmission. IC Role / Device Role / Timing Role: Monitors 1.8V LDO output and asserts active-high RESET to ARM Cortex-M0+ during battery sag below 1.67V. Use Value: 560ms timeout prevents premature wake-up before analog front-end settles post-brownout. |
Use Scenario: DIN-rail mounted digital input module exposed to 24VDC field wiring transients. IC Role / Device Role / Timing Role: Supervises 3.3V logic supply and provides glitch-immune reset to FPGA configuration controller. Use Value: ±2.5% threshold accuracy ensures consistent trip point across wide ambient temperature swings. |
| Automotive Body Control Units | Smart Home Hub Power Management |
|
Use Scenario: 12V-to-3.3V converted supply in door module subjected to load-dump events. IC Role / Device Role / Timing Role: Active-high push-pull RESET output directly interfaces with Infineon AURIX™ TRICORE™ /RST pin. Use Value: −40°C to +125°C rating and AEC-Q100 qualification support under-hood deployment. |
Use Scenario: Dual-rail (1.2V core / 3.3V I/O) smart speaker SoC requiring coordinated power sequencing. IC Role / Device Role / Timing Role: Dedicated supervisor for 3.3V I/O rail with manual reset button for firmware recovery. Use Value: Internal MR pullup removes BOM cost and layout area versus discrete resistor solution. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6326XR26D3+T | Same 1.67V threshold and 140ms timeout, but active-low open-drain output; requires external pullup. | Suitable where system-level reset bus is shared with other open-drain devices. | Select when interoperability with legacy open-drain reset networks is required. |
| TLV803EB16DBVR | 1.6V threshold (±1.5%), 200ms timeout, 0.5μA quiescent current; SOT-23-3 package. | Lacks manual reset input; optimized for ultra-low-power, single-function supervision. | Choose for cost-sensitive, space-constrained designs where MR functionality is unnecessary. |
Compared with MAX6385XS17D6-T, MAX6326XR26D3+T offers open-drain flexibility at the cost of added external component count, while TLV803EB16DBVR reduces power by 83% but sacrifices manual reset capability and thermal robustness (−40°C to +125°C vs. −40°C to +85°C).
Availability
MAX6385XS17D6-T is available at Aetrix Electronics and suitable for portable/battery-powered equipment, industrial PLC I/O modules, and automotive body control units requiring stable component supply, long-term lifecycle support, and AEC-Q100–qualified performance.
Supply support for MAX6385XS17D6-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, and computing applications.
The MAX6381–MAX6390 family delivers low-power, high-accuracy μP reset supervision with configurable thresholds and timeouts-targeting battery-operated, space-constrained, and thermally demanding embedded systems.
FAQ
What is the exact reset threshold voltage of MAX6385XS17D6-T?
The MAX6385XS17D6-T has a factory-set nominal reset threshold of 1.67V, with guaranteed tolerance of ±2.5% over the full operating temperature range (−40°C to +125°C). This value is derived from the "17" suffix in the part number per Maxim's Reset Threshold table, and applies specifically to VCC monitoring-not auxiliary inputs, which this variant lacks.
Does MAX6385XS17D6-T support manual reset functionality?
Yes, MAX6385XS17D6-T includes a debounced manual reset input (MR) with an internal 63kΩ pullup resistor to VCC. Driving MR low forces an active-high reset assertion for the full 560ms timeout period, then releases automatically-no external components required for basic pushbutton implementation.
What package type and dimensions does MAX6385XS17D6-T use?
MAX6385XS17D6-T is supplied in a 4-pin SC70 package (outline 21-0098), measuring 2.0mm × 2.1mm × 0.95mm. It is RoHS-compliant ("+T" suffix) and rated for −40°C to +125°C operation, making it suitable for reflow soldering and high-reliability industrial deployments.
How does the reset timeout behavior differ between VCC recovery and manual reset on MAX6385XS17D6-T?
MAX6385XS17D6-T uses the same 560ms minimum timeout for both VCC recovery and manual reset release-unlike MAX6390, which separates VCC and MR timeouts. After MR is released or VCC rises above 1.67V, the RESET output remains high for exactly 560ms before returning low, ensuring deterministic μP startup timing.
Is MAX6385XS17D6-T pin-compatible with older Maxim reset ICs like MAX809?
Yes, MAX6385XS17D6-T is explicitly pin-compatible with MAX809/MAX810/MAX803 and other members of the MAX6326–MAX6348 series per Maxim's datasheet. Its 4-pin SC70 layout matches the footprint and signal mapping of those legacy parts, enabling drop-in replacement in existing designs without PCB revision.
MAX6385XS17D6-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:
- 1.67V
- 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-70-4
MAX6385XS17D6-T FAQ
1.How can I place an order for MAX6385XS17D6-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6385XS17D6-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 MAX6385XS17D6-T reliable?
The price and inventory of MAX6385XS17D6-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6385XS17D6-T is usually 5 days.
3.What payment methods are accepted for MAX6385XS17D6-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6385XS17D6-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6385XS17D6-T?
MAX6385XS17D6-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6385XS17D6-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 MAX6385XS17D6-T?
For technical support, including MAX6385XS17D6-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6385XS17D6-T requirements.
6.How does Aetrix verify that MAX6385XS17D6-T is sourced from the original manufacturer or authorized distributors?
All MAX6385XS17D6-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 MAX6385XS17D6-T meets industry standards.
7.What is the process for return or replacement of MAX6385XS17D6-T?
All MAX6385XS17D6-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6385XS17D6-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 MAX6385XS17D6-T part is unused and in its original packaging.
Return procedure for MAX6385XS17D6-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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