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Analog Devices Inc./Maxim Integrated MAX6385XS24D6-T
- Part No.:
- MAX6385XS24D6-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-82A, SOT-343
- Datasheet:
-
MAX6385XS24D6-T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-4
- Quantity:
- Payment:
- Shipping:
Inventory:4,709
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Product details
Overview
MAX6385XS24D6-T from Maxim Integrated is a low-power microprocessor supervisory circuit with active-high push-pull reset output, factory-set 2.40V ±2.5% reset threshold, and 560ms minimum VCC reset timeout. It monitors +1.8V to +5.0V supply rails, consumes only 3μA at +1.8V, and guarantees valid reset state down to VCC = 1V. It is used in battery-powered embedded controllers requiring reliable power-on reset and brownout protection.
For engineers reviewing the MAX6385XS24D6-T datasheet, MAX6385XS24D6-T pinout, MAX6385XS24D6-T application, or MAX6385XS24D6-T equivalent, key selection criteria include reset threshold accuracy over temperature (±2.5% from −40°C to +125°C), manual reset input with internal 63kΩ pullup, 4-pin SC70 package footprint, and compatibility with dual-voltage monitoring systems via MR input timing control.
Technical Context
The MAX6385XS24D6-T implements a precision voltage comparator with internal 2.40V reference and a programmable monostable timer for reset assertion. Its reset logic asserts high when VCC falls below 2.40V or when the manual reset (MR) pin is pulled low, holding the active-high RESET output for ≥560ms after recovery.
It features a debounced MR input with 1µs minimum pulse width support and 100ns glitch rejection, enabling robust external reset initiation without additional RC filtering. The device operates across −40°C to +125°C and maintains reset threshold tempco of 60ppm/°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.40V ±2.5% over −40°C to +125°C - ensures accurate brownout detection across automotive and industrial temperature ranges |
| VCC Supply Current | 3μA at +1.8V - enables multi-year operation in coin-cell–powered IoT sensors |
| Reset Timeout Period | 560ms minimum - provides sufficient hold time for slow-ramping microcontrollers and FPGA configuration |
| Reset Output Type | Active-high push-pull - eliminates need for external pullup resistor and supports direct connection to μP RESET pin |
| Manual Reset Input | Internal 63kΩ pullup, TTL/CMOS compatible - allows momentary switch interface without external components |
| Operating Voltage Range | +1.0V to +5.5V - supports valid reset assertion during deep brownout down to 1V supply |
| Package | 4-pin SC70 (X4+1 outline) - 1.6mm × 1.6mm footprint ideal for space-constrained portable designs |
Pinout & Package
MAX6385XS24D6-T is housed in a RoHS-compliant 4-pin SC70 package (outline 21-0098, land pattern 90-0187), measuring 1.6mm × 1.6mm × 0.9mm with gull-wing leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCC | Main supply input and monitored voltage rail - powers internal circuitry and serves as primary reset trigger source |
| 2 | RESET | Active-high push-pull output - drives high during reset condition; sinks current when deasserted; no external pullup required |
| 3 | MR | Active-low manual reset input - initiates reset when pulled low; internally pulled up to VCC with 63kΩ resistor |
| 4 | GND | Analog/digital ground reference - must be connected to system ground plane for stable comparator operation |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed reset threshold | 2.40V with ±2.5% tolerance over full temperature range - eliminates need for external calibration in production |
| Low quiescent current | 3μA at 1.8V - extends battery life in always-on edge nodes and wearables |
| Guaranteed reset validity | Operates correctly down to VCC = 1.0V - ensures deterministic reset behavior during severe brownout |
| Debounced manual reset | 100ns glitch rejection and 1µs minimum pulse width - prevents false resets from ESD or noise on MR line |
| Negative-going transient immunity | Immune to VCC glitches ≤35µs at 100mV overdrive - improves reliability in electrically noisy environments |
Applications
| Power-On Reset for Microcontrollers | Battery-Powered Sensor Nodes |
|---|---|
Use Scenario: Ensuring clean startup of an ARM Cortex-M0+ MCU after Li-ion battery voltage recovers from deep discharge. IC Role / Device Role / Timing Role: Supervisory IC providing active-high reset signal synchronized to VCC ramp-up with 560ms timeout. Use Value: Prevents code execution before core and I/O supplies stabilize, eliminating boot failures in field-deployed devices. | Use Scenario: Maintaining system integrity in a wireless environmental sensor powered by a CR2032 coin cell. IC Role / Device Role / Timing Role: Low-current (3μA) reset supervisor monitoring 3.0V supply and asserting reset during voltage sag below 2.40V. Use Value: Enables >5-year shelf life while guaranteeing reliable wake-up and initialization after storage-induced voltage drop. |
| Dual-Voltage System Monitoring | Industrial PLC I/O Module |
Use Scenario: Coordinating reset sequencing between 3.3V logic and 5.0V analog subsystems in a mixed-signal data acquisition board. IC Role / Device Role / Timing Role: Primary VCC monitor with MR input used to synchronize reset release across voltage domains via external logic. Use Value: Eliminates race conditions during power-up by enforcing deterministic reset hold time across independent rails. | Use Scenario: Providing fail-safe reset during AC line transients in a DIN-rail mounted programmable logic controller. IC Role / Device Role / Timing Role: Industrial-grade (−40°C to +125°C) supervisory circuit with 2.40V threshold and 560ms timeout for critical firmware protection. Use Value: Meets IEC 61000-4-4 surge immunity requirements by rejecting sub-50µs VCC dips without spurious reset assertion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6385XS24D3-T | Same 2.40V threshold and 4-pin SC70 package, but 140ms reset timeout instead of 560ms | Suitable for fast-boot MCUs where shorter reset hold time is acceptable | Select when system clock initialization completes in <200ms and longer timeout risks unnecessary delay |
| TLV803EB24DBZR | 2.43V threshold, 200ms timeout, SOT-23-3 package, 0.5μA typical ICC at 1.8V | Lacks manual reset input and operates only down to VCC = 1.6V (not 1.0V) | Choose for ultra-low-power applications where MR functionality is unused and smaller footprint is prioritized |
Compared with MAX6385XS24D3-T, the MAX6385XS24D6-T provides longer reset hold time for slower peripherals; compared with TLV803EB24DBZR, it offers guaranteed operation down to 1.0V and integrated MR functionality - critical for robust industrial and automotive reset sequencing.
Availability
MAX6385XS24D6-T is available at Aetrix Electronics and suitable for battery-powered instrumentation, industrial PLC modules, microcontroller-based edge sensors, and automotive body electronics requiring stable component supply and long-term lifecycle support.
Supply support for MAX6385XS24D6-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 applications.
The MAX6381–MAX6390 family delivers low-power, high-accuracy reset supervision for microprocessor systems operating under wide voltage and temperature ranges - targeting space- and power-constrained embedded control applications.
FAQ
What is the exact reset threshold voltage of the MAX6385XS24D6-T?
The MAX6385XS24D6-T has a factory-set nominal reset threshold of 2.40V, with guaranteed tolerance of ±2.5% over the full operating temperature range (−40°C to +125°C). This means the actual threshold falls between 2.34V and 2.46V at +25°C, and between 2.32V and 2.48V across the entire temperature range. The "24" suffix in MAX6385XS24D6-T explicitly denotes the 2.40V threshold variant per Maxim's ordering guide.
Does the MAX6385XS24D6-T support manual reset functionality?
Yes, the MAX6385XS24D6-T includes a dedicated active-low manual reset input (MR pin) with an internal 63kΩ pullup resistor to VCC. Driving MR low forces an immediate reset assertion, which remains active for the full 560ms timeout period after MR is released. This feature enables hardware-initiated resets via pushbutton switches or external logic without requiring additional components.
What package type and dimensions does the MAX6385XS24D6-T use?
The MAX6385XS24D6-T is supplied in a lead-free, RoHS-compliant 4-pin SC70 package (outline number 21-0098, land pattern 90-0187), measuring 1.6mm × 1.6mm × 0.9mm. Its gull-wing lead configuration supports standard reflow soldering processes and provides a compact footprint ideal for portable and space-constrained PCB layouts.
How does the MAX6385XS24D6-T behave during deep brownout conditions?
The MAX6385XS24D6-T guarantees correct reset output logic state down to VCC = 1.0V, ensuring deterministic behavior even during severe brownout. Its active-high push-pull RESET output remains valid and functional throughout this range, unlike open-drain alternatives that require external pullups and may fail below ~1.6V. This capability prevents undefined MCU states in low-voltage recovery scenarios.
Is the MAX6385XS24D6-T qualified for automotive applications?
No, the MAX6385XS24D6-T is not automotive-qualified. While it operates across −40°C to +125°C and meets AEC-Q100 requirements for certain variants (denoted by /V suffix), the MAX6385XS24D6-T lacks the /V marking and is specified for industrial-grade use only. For automotive applications, select variants such as MAX6385XS24D6/V+T, which include additional qualification testing and traceability.
MAX6385XS24D6-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:
- 2.4V
- 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
MAX6385XS24D6-T FAQ
1.How can I place an order for MAX6385XS24D6-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6385XS24D6-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 MAX6385XS24D6-T reliable?
The price and inventory of MAX6385XS24D6-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6385XS24D6-T is usually 5 days.
3.What payment methods are accepted for MAX6385XS24D6-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6385XS24D6-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6385XS24D6-T?
MAX6385XS24D6-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6385XS24D6-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 MAX6385XS24D6-T?
For technical support, including MAX6385XS24D6-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6385XS24D6-T requirements.
6.How does Aetrix verify that MAX6385XS24D6-T is sourced from the original manufacturer or authorized distributors?
All MAX6385XS24D6-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 MAX6385XS24D6-T meets industry standards.
7.What is the process for return or replacement of MAX6385XS24D6-T?
All MAX6385XS24D6-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6385XS24D6-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 MAX6385XS24D6-T part is unused and in its original packaging.
Return procedure for MAX6385XS24D6-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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