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Analog Devices Inc./Maxim Integrated MAX6385XS35D2-T
- Part No.:
- MAX6385XS35D2-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-82A, SOT-343
- Datasheet:
-
MAX6385XS35D2-T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-4
- Quantity:
- Payment:
- Shipping:
Inventory:1,544
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Product details
Overview
MAX6385XS35D2-T from Maxim Integrated is a push-pull active-high microprocessor supervisory circuit with factory-set 3.50V reset threshold, 20ms minimum VCC reset timeout, and manual reset input (MR), designed for reliable power-on reset assertion in low-voltage embedded systems operating from +1.8V to +5.0V supply rails. It consumes only 3μA at +1.8V and guarantees valid reset output down to VCC = 1V.
For engineers reviewing the MAX6385XS35D2-T datasheet, MAX6385XS35D2-T pinout, MAX6385XS35D2-T application, or MAX6385XS35D2-T equivalent, key selection criteria include reset threshold accuracy (±2.5% over −40°C to +125°C), MR debounce capability, SC70-4 package compatibility, and guaranteed operation during brownout conditions.
Technical Context
The MAX6385XS35D2-T integrates a precision voltage comparator monitoring VCC against a fixed +3.50V threshold, an internal timer enforcing a 20ms minimum reset assertion period after VCC recovery, and a debounced active-low manual reset input with 63kΩ internal pullup. Its push-pull active-high RESET output drives high during fault conditions and deasserts cleanly upon timeout completion.
It operates across −40°C to +125°C with ±2.5% reset threshold tolerance and supports stable reset generation even under negative-going VCC transients up to 35µs (at 100mV overdrive), eliminating need for external filtering in noise-sensitive applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | +3.50V nominal, ±2.5% over −40°C to +125°C - ensures accurate brownout detection across automotive/industrial temperature range |
| VCC Reset Timeout | 20ms minimum - guarantees sufficient processor initialization time after power stabilization |
| Supply Current | 3μA at +1.8V - enables multi-year battery life in portable equipment |
| Operating Voltage Range | +1.0V to +5.5V - supports valid reset assertion down to near-dead-battery conditions |
| MR Input Pullup | 63kΩ internal resistor - eliminates need for external pullup and enables direct switch connection |
| RESET Output Type | Push-pull active-high - provides rail-to-rail logic levels without external components |
| Package | 4-pin SC70 (X4+1 outline) - 1.0mm × 1.0mm footprint ideal for space-constrained PCBs |
Pinout & Package
MAX6385XS35D2-T is housed in a RoHS-compliant 4-pin SC70 package (outline 21-0098, land pattern 90-0187), measuring 1.0mm × 1.0mm × 0.5mm with gull-wing leads. Thermal resistance θJA = 322.6°C/W on multilayer board.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCC | Primary supply input and monitored voltage source - powers device and triggers reset when below +3.50V |
| 2 | RESET | Active-high push-pull output - asserts high during reset condition and drives low when deasserted |
| 3 | MR | Active-low manual reset input - forces reset when pulled low; internally pulled up to VCC via 63kΩ resistor |
| 4 | GND | Ground reference for all internal circuitry and reset comparator - must be low-impedance connection |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed reset threshold | +3.50V with ±2.5% tolerance over full temperature range - eliminates external resistor network and calibration effort |
| Debounced manual reset input | Internal 63kΩ pullup and 1µs minimum pulse width acceptance - enables direct momentary switch interface without external RC |
| Low-power operation | 3μA supply current at +1.8V - extends battery runtime in portable instrumentation and wearables |
| VCC reset timeout stability | 20ms minimum with <±5% variation over temperature - ensures consistent processor boot timing across environments |
| Negative transient immunity | Rejects VCC glitches ≤35µs at 100mV overdrive - prevents spurious resets in electrically noisy industrial settings |
Applications
| Industrial PLC Power Monitoring | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: Monitors 3.3V microcontroller supply in programmable logic controller during cold-cranking and load-dump events. IC Role / Device Role / Timing Role: Supervisory circuit asserting active-high reset to prevent firmware corruption during voltage sags below 3.50V. Use Value: 20ms guaranteed reset hold time ensures complete MCU register initialization before code execution resumes. |
Use Scenario: Provides power-on reset for 3.3V domain in automotive BCM exposed to wide ambient temperature swings (−40°C to +125°C). IC Role / Device Role / Timing Role: Active-high push-pull reset generator with ±2.5% threshold accuracy over full AEC-Q100 temperature range. Use Value: Eliminates need for external voltage divider and reduces BOM count while meeting automotive reliability requirements. |
| Portable Medical Sensor Node | Dual-Voltage IoT Gateway |
Use Scenario: Powers ultra-low-power sensor node powered by coin-cell battery with 1.8V–3.6V discharge profile. IC Role / Device Role / Timing Role: Low-current (3μA) supervisor ensuring valid reset assertion down to VCC = 1.0V during end-of-life battery operation. Use Value: Enables graceful shutdown and data preservation before system collapse, extending usable battery life. |
Use Scenario: Monitors both 3.3V I/O and 1.8V core supplies in edge gateway requiring coordinated reset sequencing. IC Role / Device Role / Timing Role: Primary VCC monitor for 3.3V rail; used alongside companion device (e.g., MAX6387) for secondary rail supervision. Use Value: Pin-compatible family allows scalable dual-supply monitoring without redesigning PCB layout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6385XS35D3-T | 140ms VCC reset timeout vs. 20ms - longer assertion period for slower processors | Suitable for MCUs requiring extended initialization time after power-up | Select when system boot sequence exceeds 20ms; otherwise MAX6385XS35D2-T provides optimal timing match |
| MAX6326XR35D2-T | Same 3.50V threshold and 20ms timeout but no manual reset input (MR) | Lacks MR functionality - requires external reset generation if user-initiated reset needed | Choose only if manual reset is unnecessary; MAX6385XS35D2-T adds MR without footprint or cost penalty |
Compared with MAX6385XS35D3-T and MAX6326XR35D2-T, the MAX6385XS35D2-T uniquely delivers 20ms reset timing *with* integrated debounced MR in the same 4-pin SC70 package - enabling compact, feature-complete reset supervision where space and functionality are both constrained.
Availability
MAX6385XS35D2-T is available at Aetrix Electronics and suitable for industrial PLC power monitoring, automotive body control modules, portable medical sensor nodes, and dual-voltage IoT gateways requiring stable component supply with guaranteed long-term availability.
Supply support for MAX6385XS35D2-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 demanding industrial, automotive, and computing applications, emphasizing low power, high reliability, and small form factor.
The MAX6381–MAX6390 family delivers single/dual low-voltage microprocessor supervisory circuits optimized for battery-powered and thermally harsh environments where accurate, low-current reset generation is critical.
FAQ
What is the exact reset threshold voltage of the MAX6385XS35D2-T?
The MAX6385XS35D2-T has a factory-set nominal reset threshold of +3.50V, with guaranteed tolerance of ±2.5% over the full operating temperature range of −40°C to +125°C. This value is confirmed in the Reset Thresholds table of the datasheet and applies specifically to the "35" suffix in the part number.
Does the MAX6385XS35D2-T support manual reset functionality?
Yes, the MAX6385XS35D2-T includes a dedicated active-low manual reset input (MR) on pin 3, featuring an internal 63kΩ pullup resistor to VCC. Driving MR low forces a reset, which remains asserted for the full 20ms timeout period after MR is released - no external components required.
What package type and dimensions does the MAX6385XS35D2-T use?
The MAX6385XS35D2-T is supplied in a 4-pin SC70 package (outline number 21-0098), measuring 1.0mm × 1.0mm × 0.5mm with gull-wing leads. Its land pattern is documented as 90-0187, and it is RoHS-compliant (denoted by the "+T" suffix).
Can the MAX6385XS35D2-T operate reliably at low supply voltages?
Yes, the MAX6385XS35D2-T guarantees functional operation down to VCC = +1.0V and maintains valid logic states on its push-pull RESET output across this entire range. Its 3μA supply current at +1.8V further supports ultra-low-power applications such as battery-operated sensors.
Is the MAX6385XS35D2-T qualified for automotive applications?
No, the MAX6385XS35D2-T is not automotive-qualified. While it operates across −40°C to +125°C, it lacks the "/V" suffix indicating AEC-Q100 qualification. For automotive use, consider the MAX6385XS35D2/V+T variant, which includes full automotive qualification and testing.
MAX6385XS35D2-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:
- 3.5V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active High
- Reset Timeout:
- 20ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-4
MAX6385XS35D2-T FAQ
1.How can I place an order for MAX6385XS35D2-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6385XS35D2-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 MAX6385XS35D2-T reliable?
The price and inventory of MAX6385XS35D2-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6385XS35D2-T is usually 5 days.
3.What payment methods are accepted for MAX6385XS35D2-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6385XS35D2-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6385XS35D2-T?
MAX6385XS35D2-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6385XS35D2-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 MAX6385XS35D2-T?
For technical support, including MAX6385XS35D2-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6385XS35D2-T requirements.
6.How does Aetrix verify that MAX6385XS35D2-T is sourced from the original manufacturer or authorized distributors?
All MAX6385XS35D2-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 MAX6385XS35D2-T meets industry standards.
7.What is the process for return or replacement of MAX6385XS35D2-T?
All MAX6385XS35D2-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6385XS35D2-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 MAX6385XS35D2-T part is unused and in its original packaging.
Return procedure for MAX6385XS35D2-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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