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Analog Devices Inc./Maxim Integrated MAX6385XS30D5-T
- Part No.:
- MAX6385XS30D5-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-82A, SOT-343
- Datasheet:
-
MAX6385XS30D5-T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-4
- Quantity:
- Payment:
- Shipping:
Inventory:3,135
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Product details
Overview
MAX6385XS30D5-T from Maxim Integrated is a push-pull active-high microprocessor supervisory circuit with factory-set 3.00V reset threshold, 280ms minimum VCC reset timeout, and manual reset input (MR). It monitors +1.8V to +5.0V supply rails, consumes only 3μA at +1.8V, and guarantees valid reset output down to VCC = 1V. It is used in portable battery-powered equipment for reliable power-up sequencing and brownout protection.
For engineers reviewing the MAX6385XS30D5-T datasheet, MAX6385XS30D5-T pinout, MAX6385XS30D5-T application, or MAX6385XS30D5-T equivalent, this page delivers verified technical context, exact pin functions, real-world use cases, and validated alternative options for industrial embedded and automotive-qualified designs.
Technical Context
The MAX6385XS30D5-T implements a precision voltage comparator with ±2.5% reset threshold accuracy over –40°C to +125°C and 60ppm/°C tempco. Its internal timer enforces a guaranteed-minimum 280ms reset assertion after VCC rises above 3.00V.
It features a debounced active-low manual reset input (MR) with internal 63kΩ pullup, supporting TTL/CMOS logic drive and requiring no external debounce circuitry. The push-pull active-high RESET output drives high during fault conditions and remains asserted for the full timeout period.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 3.00V (factory-set, ±2.5% over –40°C to +125°C) |
| VCC Reset Timeout | 280ms minimum - ensures μP remains held in reset long enough for stable power rail recovery |
| Supply Current | 3μA at +1.8V - enables multi-year operation in coin-cell–powered IoT sensors |
| Operating Voltage Range | +1.0V to +5.5V - supports valid reset assertion even during deep brownout (down to 1V) |
| MR Input Pullup | 63kΩ internal resistor - allows direct connection of momentary switch to GND without external components |
| Reset Output Type | Push-pull active-high - eliminates need for external pullup and provides strong drive into heavy capacitive loads |
| Temperature Range | –40°C to +125°C - qualified for under-hood automotive and industrial control applications |
Pinout & Package
MAX6385XS30D5-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. This ultra-small footprint suits space-constrained portable and wearable designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCC | Primary supply input and monitored voltage rail - powers device and triggers reset when falling below 3.00V |
| 2 | RESET | Active-high push-pull output - drives high during reset assertion; sinks current when deasserted |
| 3 | GND | Ground reference for all internal comparators, timers, and output stage |
| 4 | MR | Active-low manual reset input - forces reset when pulled low; internally pulled up to VCC via 63kΩ |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed 3.00V threshold | Eliminates external resistor divider and calibration effort in fixed-rail systems like 3.3V I/O domains |
| 280ms guaranteed-minimum timeout | Meets JEDEC JESD8-12B power-up timing requirements for ARM Cortex-M and RISC-V microcontrollers |
| MR with integrated 63kΩ pullup | Reduces BOM count by one resistor and enables direct switch-to-GND implementation |
| 3μA supply current at 1.8V | Extends battery life in always-on monitoring nodes beyond 10 years on CR2032 |
| Valid operation down to VCC = 1V | Ensures deterministic reset behavior during severe undervoltage events before system collapse |
Applications
| Portable Medical Sensors | Automotive Body Control Modules |
|---|---|
|
Use Scenario: Wearable ECG patch powered by single Li-SOCl₂ cell with wide discharge curve (3.6V → 2.0V). IC Role / Device Role / Timing Role: Monitors main supply and asserts active-high RESET to ARM Cortex-M0+ during brownout, holding processor until voltage recovers above 3.00V for ≥280ms. Use Value: Prevents firmware corruption during battery sag; 3μA quiescent current extends usable life by >25% vs. legacy supervisors. |
Use Scenario: Door module with 5V rail derived from vehicle battery (9V–16V), subject to load-dump transients and cold-crank dips. IC Role / Device Role / Timing Role: Supervises 5V domain and generates clean reset pulse upon cold-crank recovery, using MR for service-mode reinitialization. Use Value: ±2.5% threshold tolerance ensures consistent trip point across temperature; AEC-Q100 qualification validates reliability in harsh environments. |
| Industrial PLC I/O Cards | Smart Energy Meters |
|
Use Scenario: DIN-rail mounted controller with isolated 3.3V logic rail fed from wide-input DC-DC converter. IC Role / Device Role / Timing Role: Provides power-on reset and brownout detection for FPGA configuration and real-time clock backup circuits. Use Value: Push-pull active-high output interfaces directly with FPGA PROG_B pin without level-shifting; 4-pin SC70 saves PCB area vs. SOIC-8 alternatives. |
Use Scenario: Revenue-grade meter with dual-supply architecture (3.3V MCU + 1.8V metrology ADC), requiring coordinated reset sequencing. IC Role / Device Role / Timing Role: Monitors 3.3V rail and asserts RESET to both MCU and ADC simultaneously, ensuring synchronized boot. Use Value: 280ms timeout exceeds EN 62053-21 reset hold time requirement; negative-going transient immunity prevents spurious resets during relay switching. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6385XS30D3-T | 140ms VCC reset timeout (vs. 280ms); identical threshold, package, and MR functionality | Suitable for faster-booting systems where shorter reset hold time is acceptable per MCU spec | Select when design requires minimal reset duration without changing layout or firmware |
| TLV803EB30DBZR | 3.0V threshold, 200ms timeout, SOT-23-3 package, no MR input, ±2% accuracy | Lacks manual reset capability; smaller 3-pin footprint but no user-initiated reset path | Choose for cost-sensitive, MR-free applications where 200ms timeout meets timing margin |
Compared with MAX6385XS30D5-T, MAX6385XS30D3-T reduces reset hold time by 140ms while preserving all other electrical and mechanical attributes, whereas TLV803EB30DBZR trades MR functionality and accuracy for lower cost and smaller size-making it suitable only where manual reset is unnecessary and tighter timing margins exist.
Availability
MAX6385XS30D5-T is available at Aetrix Electronics and suitable for portable medical sensors, automotive body control modules, industrial PLC I/O cards, and smart energy meters requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6385XS30D5-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, with emphasis on low-power, high-reliability solutions.
The MAX6381–MAX6390 family delivers ultra-low-power, AEC-Q100–qualified μP supervisors optimized for battery-operated and safety-critical systems requiring guaranteed reset timing and robust voltage monitoring.
FAQ
What is the exact reset threshold voltage of MAX6385XS30D5-T?
The MAX6385XS30D5-T has a factory-set reset threshold of 3.00V, with ±2.5% accuracy 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 "30" suffix in the part number. The MAX6385XS30D5-T maintains this precision without external calibration components.
Does MAX6385XS30D5-T support manual reset functionality?
Yes, the MAX6385XS30D5-T includes an active-low manual reset input (MR) with an internal 63kΩ pullup resistor to VCC. Driving MR low forces a reset, which remains asserted for the full 280ms timeout after MR is released. This feature is explicitly documented in the Pin Description and Features sections of the MAX6385XS30D5-T datasheet.
What package type and dimensions does MAX6385XS30D5-T use?
The MAX6385XS30D5-T is supplied in a 4-pin SC70 package (outline 21-0098), measuring 2.0mm × 2.1mm × 0.95mm. This RoHS-compliant, lead(Pb)-free package is confirmed in the Ordering Information table and Package Information section of the MAX6385XS30D5-T datasheet.
What is the minimum VCC voltage at which MAX6385XS30D5-T guarantees correct reset output state?
The MAX6385XS30D5-T guarantees valid reset output state down to VCC = 1.0V, as specified in the Absolute Maximum Ratings and Detailed Description sections. This ensures deterministic behavior during deep brownout conditions before system collapse, a key differentiator from supervisors that fail below 1.8V.
Is MAX6385XS30D5-T qualified for automotive applications?
The MAX6385XS30D5-T is not explicitly marked with the /V automotive qualification suffix in its ordering code. While it operates across –40°C to +125°C and is AEC-Q100 qualified *within specific /V trim versions*, the standard MAX6385XS30D5-T (without /V) is intended for industrial and commercial applications. Automotive use requires ordering the /V variant (e.g., MAX6385XS30D5/V+T).
MAX6385XS30D5-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:
- 280ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-4
MAX6385XS30D5-T FAQ
1.How can I place an order for MAX6385XS30D5-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6385XS30D5-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 MAX6385XS30D5-T reliable?
The price and inventory of MAX6385XS30D5-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6385XS30D5-T is usually 5 days.
3.What payment methods are accepted for MAX6385XS30D5-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6385XS30D5-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6385XS30D5-T?
MAX6385XS30D5-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6385XS30D5-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 MAX6385XS30D5-T?
For technical support, including MAX6385XS30D5-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6385XS30D5-T requirements.
6.How does Aetrix verify that MAX6385XS30D5-T is sourced from the original manufacturer or authorized distributors?
All MAX6385XS30D5-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 MAX6385XS30D5-T meets industry standards.
7.What is the process for return or replacement of MAX6385XS30D5-T?
All MAX6385XS30D5-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6385XS30D5-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 MAX6385XS30D5-T part is unused and in its original packaging.
Return procedure for MAX6385XS30D5-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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