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Analog Devices Inc./Maxim Integrated MAX6385XS20D6-T
- Part No.:
- MAX6385XS20D6-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-82A, SOT-343
- Datasheet:
-
MAX6385XS20D6-T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-4
- Quantity:
- Payment:
- Shipping:
Inventory:3,695
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Product details
Overview
MAX6385XS20D6-T from Maxim Integrated is a push-pull active-high microprocessor supervisory circuit with factory-set 2.0V reset threshold, 560ms minimum VCC reset timeout, and manual reset input. It monitors single supply voltage (1.0V–5.5V), consumes only 3μA at 1.8V, guarantees valid reset output down to VCC = 1V, and operates across –40°C to +125°C for use in battery-powered industrial controllers.
For engineers reviewing the MAX6385XS20D6-T datasheet, MAX6385XS20D6-T pinout, MAX6385XS20D6-T application, or MAX6385XS20D6-T equivalent, key selection criteria include its active-high push-pull reset output, 2.0V ±2.5% threshold accuracy over temperature, 560ms VCC reset timeout, debounced MR input with internal 63kΩ pullup, and 4-pin SC70 package compatibility with space-constrained embedded designs.
Technical Context
The MAX6385XS20D6-T implements a precision bandgap-based voltage comparator to monitor VCC against a fixed 2.0V threshold, with ±2.5% accuracy maintained from –40°C to +125°C and 60ppm/°C tempco. Its internal timer initiates a guaranteed-minimum 560ms reset assertion after VCC recovers above threshold.
It features a dedicated active-low manual reset input (MR) with 1µs minimum pulse width support, 100ns glitch rejection, and 200ns MR-to-reset delay. The MR pin includes an internal 63kΩ pullup resistor, enabling direct connection to momentary switches without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.0V ±2.5% over –40°C to +125°C - ensures reliable brownout detection across automotive and industrial temperature ranges |
| VCC Reset Timeout | 560ms minimum - holds processor in reset long enough for power rails and clocks to stabilize post-brownout |
| Supply Current | 3μA at 1.8V - enables multi-year operation in coin-cell–powered IoT sensors and portable instrumentation |
| Reset Output Type | Active-high push-pull - drives high without external pullup, compatible with standard CMOS μP reset inputs |
| Operating Voltage Range | 1.0V to 5.5V - supports monitoring of core, I/O, and auxiliary rails in modern low-voltage SoC systems |
| MR Input Pullup | 63kΩ internal resistor - eliminates need for external biasing when using mechanical pushbutton for manual reset |
| Reset Valid Down To | VCC = 1V - maintains defined logic state during deep undervoltage conditions before complete power collapse |
Pinout & Package
MAX6385XS20D6-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, suitable for high-density PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCC | Primary supply input and monitored voltage rail - must be decoupled with 0.1μF capacitor near pin for transient immunity |
| 2 | RESET | Active-high push-pull reset output - drives high during fault condition; sinks current when deasserted, no external pullup required |
| 3 | MR | Active-low manual reset input - asserted by pulling low; internal 63kΩ pullup allows floating or VCC tie when unused |
| 4 | GND | Analog/digital ground reference - requires low-impedance connection to system ground plane for noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| Factory-set 2.0V threshold | Eliminates external resistor divider, reducing BOM count and layout area in single-rail monitoring applications |
| 560ms VCC reset timeout | Ensures sufficient hold time for slow-ramping power supplies and crystal oscillator startup in microcontroller systems |
| Debounced MR input | Rejects contact bounce from mechanical switches without external RC filtering or firmware debouncing overhead |
| 1.0V–5.5V operating range | Supports direct monitoring of 1.2V, 1.8V, 2.5V, 3.3V, and 5.0V rails without level-shifting circuitry |
| –40°C to +125°C operation | Validated for under-hood automotive, industrial PLC, and outdoor edge-node deployments |
Applications
| Industrial Motor Controller | Portable Medical Sensor |
|---|---|
Use Scenario: Monitors 3.3V logic supply in a DIN-rail-mounted PLC controlling servo drives and safety interlocks. IC Role / Device Role / Timing Role: Supervisory circuit asserting active-high reset to ARM Cortex-M7 MCU during brownout events on main 3.3V rail. Use Value: 560ms timeout prevents spurious reboots during brief line sags; ±2.5% threshold accuracy ensures consistent trip point across wide ambient temperatures. | Use Scenario: Embedded in handheld glucose meter powered by CR2032 coin cell with 2.0V nominal output. IC Role / Device Role / Timing Role: Resets ultra-low-power MSP430 microcontroller when battery voltage drops below 2.0V, preserving calibration data before shutdown. Use Value: 3μA quiescent current extends battery life beyond 3 years; 2.0V threshold matches battery end-of-life voltage profile. |
| Automotive Body Control Module | Smart Energy Meter |
Use Scenario: Installed in BCM subassembly monitoring 5.0V CAN transceiver supply and 1.8V microcontroller core rail. IC Role / Device Role / Timing Role: Provides AEC-Q100–qualified supervision with manual reset via dashboard service button. Use Value: Internal MR pullup simplifies switch interface; 4-pin SC70 footprint saves space in compact module housing. | Use Scenario: Used in ANSI C12.22–compliant meter with dual 3.3V/1.2V rails and tamper-detection circuitry. IC Role / Device Role / Timing Role: Generates clean reset pulse to secure element and metrology ASIC during AC mains dropout. Use Value: Negative-going transient immunity prevents false resets from EMI-coupled noise on power lines. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6385XS20D3-T | Same 2.0V threshold and MR functionality, but 140ms VCC reset timeout | Better suited for fast-recovery systems like USB peripherals where short reset hold time is required | Select when faster reset deassertion is needed; not drop-in due to timeout mismatch |
| TPS3808G12DBVR | 2.0V threshold, 500ms timeout, 1.8V–6.0V VCC range, but active-low open-drain output | Requires external pullup resistor and level translation for active-high μP inputs | Choose only if redesign accommodates open-drain interface and different timing tolerance |
Compared with MAX6385XS20D6-T, MAX6385XS20D3-T offers shorter reset hold time for responsive systems, while TPS3808G12DBVR demands board-level interface changes due to open-drain output and lacks integrated MR debouncing - both require schematic and layout review before substitution.
Availability
MAX6385XS20D6-T is available at Aetrix Electronics and suitable for industrial motor controllers, portable medical sensors, automotive body control modules, and smart energy meters requiring stable component supply across extended temperature and long product lifecycles.
Supply support for MAX6385XS20D6-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 demanding industrial, automotive, and computing applications.
The MAX6381–MAX6390 family delivers low-power, high-accuracy voltage supervision for microprocessor systems where reliability under brownout, thermal stress, and battery depletion is critical.
FAQ
What is the exact reset threshold voltage and tolerance for MAX6385XS20D6-T?
The MAX6385XS20D6-T has a factory-set reset threshold of 2.0V with ±2.5% accuracy over the full operating temperature range of –40°C to +125°C. This means the actual trip point falls between 1.95V and 2.05V at +25°C, and between 1.95V and 2.05V across extreme temperatures - verified per Maxim's Electrical Characteristics table and supported by 60ppm/°C tempco specification.
Does MAX6385XS20D6-T support manual reset, and how is it implemented?
Yes, MAX6385XS20D6-T includes a debounced manual reset (MR) input on Pin 3. It is active-low, internally pulled up to VCC with a 63kΩ resistor, accepts TTL/CMOS logic levels, and requires only a momentary switch to GND. The device asserts reset for 560ms after MR release, matching the VCC reset timeout - no external components or firmware debouncing are needed.
What package type and dimensions does MAX6385XS20D6-T use?
MAX6385XS20D6-T uses a 4-pin SC70 package (outline number 21-0098, land pattern 90-0187), measuring 2.0mm × 2.1mm × 0.95mm with gull-wing leads. It is RoHS-compliant (+ suffix), rated for –40°C to +125°C operation, and optimized for automated placement in high-density PCB assemblies.
Can MAX6385XS20D6-T operate reliably at very low supply voltages?
Yes, MAX6385XS20D6-T guarantees correct reset output logic state down to VCC = 1.0V, and functions across 1.0V–5.5V. Its 3μA supply current at 1.8V and 6μA at 3.6V enables multi-year battery life in always-on sensor nodes - validated in the Electrical Characteristics table under "Operating Voltage Range" and "VCC Supply Current."
Is MAX6385XS20D6-T pin-compatible with legacy Maxim reset ICs like MAX809?
Yes, MAX6385XS20D6-T is pin-compatible with MAX809/MAX810/MAX803 and other members of the MAX6326–MAX6348 series in the same 4-pin SC70 package. However, note that MAX809 provides active-low reset output, whereas MAX6385XS20D6-T delivers active-high push-pull - interface compatibility depends on the target microcontroller's reset input polarity.
MAX6385XS20D6-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:
- 2V
- 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
MAX6385XS20D6-T FAQ
1.How can I place an order for MAX6385XS20D6-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6385XS20D6-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 MAX6385XS20D6-T reliable?
The price and inventory of MAX6385XS20D6-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6385XS20D6-T is usually 5 days.
3.What payment methods are accepted for MAX6385XS20D6-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6385XS20D6-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6385XS20D6-T?
MAX6385XS20D6-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6385XS20D6-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 MAX6385XS20D6-T?
For technical support, including MAX6385XS20D6-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6385XS20D6-T requirements.
6.How does Aetrix verify that MAX6385XS20D6-T is sourced from the original manufacturer or authorized distributors?
All MAX6385XS20D6-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 MAX6385XS20D6-T meets industry standards.
7.What is the process for return or replacement of MAX6385XS20D6-T?
All MAX6385XS20D6-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6385XS20D6-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 MAX6385XS20D6-T part is unused and in its original packaging.
Return procedure for MAX6385XS20D6-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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