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Analog Devices Inc./Maxim Integrated MAX6384XS29D1-T
- Part No.:
- MAX6384XS29D1-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-82A, SOT-343
- Datasheet:
-
MAX6384XS29D1-T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-4
- Quantity:
- Payment:
- Shipping:
Inventory:3,196
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Product details
Overview
MAX6384XS29D1-T from Maxim Integrated is a low-power microprocessor supervisory circuit with factory-set 2.93V reset threshold, 1ms minimum VCC reset timeout, active-low push-pull reset output, and debounced manual reset input (MR). It monitors +1.8V to +5.0V supply rails in battery-powered embedded systems and guarantees valid reset state down to VCC = 1V. Designed for critical μP power-up sequencing in portable instrumentation.
For engineers reviewing the MAX6384XS29D1-T datasheet, MAX6384XS29D1-T pinout, MAX6384XS29D1-T application, or MAX6384XS29D1-T equivalent, key selection criteria include its 2.93V ±2.5% threshold accuracy over -40°C to +125°C, 3μA supply current at +1.8V, MR internal pullup (63kΩ), and 4-pin SC70 package compatibility with space-constrained PCB layouts.
Technical Context
The MAX6384XS29D1-T implements a precision voltage comparator with ±2.5% threshold accuracy across industrial temperature range, paired with a monostable timer that enforces a guaranteed minimum 1ms reset assertion after VCC recovers above 2.93V. Its MR input features built-in debounce and an internal 63kΩ pullup resistor, eliminating external components for manual reset functionality.
This device operates as a single-supply monitor only - it lacks auxiliary RESET IN capability (reserved for MAX6387–MAX6389) and does not support dual-voltage monitoring. The active-low push-pull RESET output drives directly into μP reset inputs without requiring external pullup resistors, and remains functional down to VCC = 1V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.93V (factory-set, ±2.5% over -40°C to +125°C) - ensures reliable brownout detection for 3.3V I/O domains |
| VCC Reset Timeout | 1ms minimum - provides sufficient hold time for μP core initialization before release |
| Supply Current | 3μA at +1.8V - enables multi-year operation in coin-cell–powered IoT endpoints |
| Reset Output Type | Active-low push-pull - eliminates need for external pullup; sinks 3.2mA at VCC ≥ 4.5V |
| Manual Reset Input | MR with 63kΩ internal pullup - supports direct switch-to-GND connection; no external RC debounce required |
| Operating Voltage Range | +1.0V to +5.5V - guarantees functional reset assertion even during deep brownout conditions |
| Package | 4-pin SC70 (X4+1 outline) - 1.6mm × 1.6mm footprint ideal for wearables and compact sensor nodes |
Pinout & Package
MAX6384XS29D1-T uses a 4-pin SC70 package (outline 21-0098, land pattern 90-0187), optimized for high-density PCB layouts. Pin 1 is RESET, Pin 2 is VCC, Pin 3 is MR, and Pin 4 is GND - all pins are surface-mount compatible with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RESET | Active-low push-pull output; asserts low during VCC undervoltage or MR activation; drives μP reset pin directly |
| 2 | VCC | Main supply input and monitored rail; powers internal circuitry and sets reset threshold reference point |
| 3 | MR | Active-low manual reset input; internally pulled up to VCC (63kΩ); initiates reset when pulled ≤0.3×VCC |
| 4 | GND | Reference ground for all internal comparators, timers, and output drivers; must be low-impedance connection |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed reset threshold | 2.93V with ±2.5% tolerance over full temperature range - eliminates calibration overhead in production test |
| Ultra-low quiescent current | 3μA at +1.8V - extends battery life in always-on monitoring applications without sacrificing reset reliability |
| Guaranteed reset validity | Functional down to VCC = 1V - ensures deterministic μP reset behavior during severe brownout recovery |
| Integrated MR debounce | No external components needed - internal timing rejects <1µs glitches; supports momentary switch interface |
| Push-pull RESET output | Drives high/low actively - avoids bus contention and eliminates pullup resistor BOM line and layout area |
Applications
| Portable Medical Sensors | Industrial PLC I/O Modules |
|---|---|
|
Use Scenario: Wearable ECG patch operating from CR2032 battery with dynamic load switching causing transient VCC sags. IC Role / Device Role / Timing Role: Supervises main 3.3V rail and asserts reset if voltage drops below 2.93V for >1ms; MR enables field technician-initiated recalibration. Use Value: Prevents firmware corruption during battery depletion; 3μA ICC extends operational life beyond 3 years. |
Use Scenario: DIN-rail mounted analog input module exposed to 24VDC supply ripple and ESD events. IC Role / Device Role / Timing Role: Monitors isolated 3.3V logic supply; resets microcontroller on brownout while rejecting <35µs transients per comparator overdrive curve. Use Value: Eliminates spurious resets from switching noise; ±2.5% threshold stability ensures consistent trip point across -40°C to +85°C ambient. |
| Smart Meter Communication Cards | Automotive Body Control Units |
|
Use Scenario: NB-IoT modem card powered by supercapacitor backup during mains failure. IC Role / Device Role / Timing Role: Detects 3.3V rail collapse during capacitor discharge; 1ms timeout aligns with modem's minimum reset hold requirement. Use Value: Enables graceful shutdown and state preservation before power loss; SC70 footprint saves 60% board area vs. SOT23. |
Use Scenario: LIN gateway node in door module with 5V supply subject to load dump and cold crank. IC Role / Device Role / Timing Role: Monitors 3.3V domain derived from automotive LDO; MR allows diagnostic tool-triggered reset without cycling ignition. Use Value: Supports AEC-Q100-compliant designs (via /V variants); 115°C/W θJC enables thermal margin in sealed enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar μP reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6384XS29D2-T | 20ms minimum reset timeout vs. 1ms - longer assertion period for slower μP clock stabilization | Suitable for systems with >10ms oscillator startup time; not drop-in for 1ms-critical timing | Select only if design requires extended reset hold; otherwise MAX6384XS29D1-T maintains optimal timing margin |
| MAX6326XR29D1-T | Same 2.93V threshold and 1ms timeout, but no MR input - lacks manual reset capability | Applicable where software-controlled reset suffices; incompatible with hardware-initiated reset needs | Choose MAX6384XS29D1-T when field serviceability or test-mode reset is required |
Compared with MAX6384XS29D2-T and MAX6326XR29D1-T, the MAX6384XS29D1-T uniquely delivers 1ms reset timing *with* integrated manual reset - enabling both fast power-up recovery and user-accessible reset control in a single 4-pin SC70 package.
Availability
MAX6384XS29D1-T is available at Aetrix Electronics and suitable for portable medical sensors, industrial PLC I/O modules, smart meter communication cards, and automotive body control units requiring stable component supply with guaranteed long-term sourcing.
Supply support for MAX6384XS29D1-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 industrial, automotive, and communications markets, emphasizing low-power operation and high-reliability performance.
The MAX6381–MAX6390 family targets ultra-low-power microprocessor supervision in space- and energy-constrained systems, with emphasis on factory-trimmed accuracy, wide temperature operation, and minimal external component count.
FAQ
What is the exact reset threshold voltage of MAX6384XS29D1-T?
The MAX6384XS29D1-T has a factory-set reset threshold of 2.93V, specified with ±2.5% accuracy over the full industrial temperature range (-40°C to +125°C). This value is trimmed during production and documented in the Reset Thresholds table of the MAX6381–MAX6390 datasheet. The '29' suffix in the part number explicitly denotes the 2.93V threshold variant.
Does MAX6384XS29D1-T support dual-voltage monitoring?
No, the MAX6384XS29D1-T monitors only the VCC supply rail and does not include the auxiliary RESET IN input found in MAX6387–MAX6389 variants. Its function is strictly single-rail supervision. For dual-voltage monitoring, consider MAX6387XS29D1-T or MAX6389XS29D1-T, which add a dedicated high-impedance RESET IN pin referenced to an internal 1.27V comparator.
What is the function of the MR pin on MAX6384XS29D1-T?
The MR (Manual Reset) pin on MAX6384XS29D1-T is an active-low input that forces a reset when pulled to GND. It features an internal 63kΩ pullup resistor to VCC, allowing direct connection to a normally-open momentary switch without external components. Reset remains asserted for the full 1ms timeout after MR is released, ensuring reliable μP initialization.
Can MAX6384XS29D1-T operate reliably at VCC = 1.2V?
Yes, the MAX6384XS29D1-T guarantees correct reset output logic state down to VCC = 1.0V, as confirmed in the Absolute Maximum Ratings and Electrical Characteristics tables. At 1.2V, the device fully functions: it monitors VCC against the 2.93V threshold (asserting reset when VCC falls below it), maintains MR input sensitivity, and drives the RESET output with valid VOL and VOH levels per datasheet specifications.
Is MAX6384XS29D1-T RoHS-compliant and lead-free?
Yes, MAX6384XS29D1-T is RoHS-compliant and lead-free, indicated by the '+' suffix in its ordering code (e.g., 'X4+1' package code and '+T' tape-and-reel designation). This compliance is explicitly stated in the datasheet's Ordering Information section and verified through Maxim Integrated's material declarations and manufacturing process controls.
MAX6384XS29D1-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:
- 2.93V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active Low
- Reset Timeout:
- 1ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-4
MAX6384XS29D1-T FAQ
1.How can I place an order for MAX6384XS29D1-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6384XS29D1-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 MAX6384XS29D1-T reliable?
The price and inventory of MAX6384XS29D1-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6384XS29D1-T is usually 5 days.
3.What payment methods are accepted for MAX6384XS29D1-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6384XS29D1-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6384XS29D1-T?
MAX6384XS29D1-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6384XS29D1-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 MAX6384XS29D1-T?
For technical support, including MAX6384XS29D1-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6384XS29D1-T requirements.
6.How does Aetrix verify that MAX6384XS29D1-T is sourced from the original manufacturer or authorized distributors?
All MAX6384XS29D1-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 MAX6384XS29D1-T meets industry standards.
7.What is the process for return or replacement of MAX6384XS29D1-T?
All MAX6384XS29D1-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6384XS29D1-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 MAX6384XS29D1-T part is unused and in its original packaging.
Return procedure for MAX6384XS29D1-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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