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Analog Devices Inc./Maxim Integrated MAX6384XS29D2
- Part No.:
- MAX6384XS29D2
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-82A, SOT-343
- Datasheet:
-
MAX6384XS29D2.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-4
- Quantity:
- Payment:
- Shipping:
Inventory:1,955
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Product details
Overview
MAX6384XS29D2 from Maxim Integrated is a low-power microprocessor supervisory circuit with active-low push-pull reset output, factory-set 2.93V reset threshold (±2.5% over −40°C to +125°C), 20ms minimum reset timeout, and debounced manual reset input (MR). It monitors VCC in systems requiring reliable power-on reset for embedded controllers and battery-powered instrumentation.
For engineers reviewing the MAX6384XS29D2 datasheet, MAX6384XS29D2 pinout, MAX6384XS29D2 application, or MAX6384XS29D2 equivalent, key selection criteria include reset threshold accuracy at extended temperature, MR input pullup resistance (63kΩ), guaranteed reset validity down to VCC = 1V, and SC70-4 package compatibility with space-constrained PCB layouts.
Technical Context
The MAX6384XS29D2 implements a precision bandgap-based voltage comparator with ±2.5% threshold accuracy across −40°C to +125°C and 60ppm/°C tempco. Its internal timer generates a fixed 20ms reset assertion period after VCC rises above 2.93V or after MR release.
It features a debounced manual reset input with 63kΩ internal pullup to VCC, 1µs minimum MR pulse width, and 100ns glitch rejection. The active-low push-pull RESET output guarantees valid logic state down to VCC = 1V and sinks up to 3.2mA at VCC ≥ 4.5V with VOL ≤ 0.4V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.93V nominal, ±2.5% over −40°C to +125°C - ensures accurate brownout detection across industrial temperature range |
| Reset Timeout | 20ms minimum - provides sufficient hold time for µP initialization before release |
| Supply Current | 3µA at +1.8V - enables multi-year operation in coin-cell–powered devices |
| MR Pullup Resistance | 63kΩ - allows direct connection of momentary switch to GND without external components |
| Operating Voltage | +1.0V to +5.5V - supports reset generation even during deep brownout conditions |
| RESET Output Type | Active-low push-pull - eliminates need for external pullup resistor in most applications |
| Temp Range | −40°C to +125°C - qualified for under-hood automotive and industrial control environments |
Pinout & Package
MAX6384XS29D2 is housed in a 4-pin SC70 package (package code X4-1), measuring 1.5mm × 1.0mm × 0.8mm, with wettable flanks for automated optical inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCC | Primary supply input and monitored voltage rail; powers internal circuitry and sets fixed reset threshold |
| 2 | RESET | Active-low push-pull output; drives µP reset input low during fault or manual trigger, deasserts cleanly after timeout |
| 3 | MR | Active-low manual reset input; internally pulled up to VCC (63kΩ); initiates reset when pulled to GND |
| 4 | GND | Analog and digital ground reference; must be connected directly to system ground plane for noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed reset threshold | 2.93V with ±2.5% tolerance over full temperature range - eliminates external resistor divider and calibration effort |
| Debounced manual reset input | Integrated 63kΩ pullup and 100ns glitch rejection - enables direct switch connection without RC network or firmware debounce |
| Low-voltage operation guarantee | Valid RESET output down to VCC = 1.0V - ensures deterministic reset behavior during severe brownout |
| Negative-going transient immunity | Withstands VCC glitches as short as 35µs at 100mV overdrive - prevents spurious resets in noisy power environments |
| Ultra-low quiescent current | 3µA at 1.8V - extends battery life in portable medical sensors and IoT endpoint nodes |
Applications
| Industrial PLC I/O Module | Battery-Powered Data Logger |
|---|---|
Use Scenario: Monitors 3.3V logic supply in programmable logic controller I/O expansion module operating in factory-floor environments with wide ambient temperature swings. IC Role / Device Role / Timing Role: Supervisory circuit asserting active-low reset to ARM Cortex-M4 microcontroller during power-up, brownout, or operator-initiated restart via front-panel button. Use Value: Guarantees µP starts in known state despite 125°C junction temperature and 20ms minimum reset hold time aligns with flash initialization timing. | Use Scenario: Embedded in environmental sensor node powered by CR2032 coin cell, logging temperature/humidity every 5 minutes. IC Role / Device Role / Timing Role: Resets MSP430FR59xx MCU on power-up and during low-battery brownout; MR pin connected to tactile switch for field recalibration. Use Value: 3µA supply current extends operational life beyond 3 years; 2.93V threshold matches Li-ion cutoff voltage to prevent data corruption. |
| Automotive Body Control Module | Medical Wearable Sensor Hub |
Use Scenario: Used in 12V-to-3.3V converted subsystem monitoring microcontroller supply in door module with CAN interface. IC Role / Device Role / Timing Role: Provides fail-safe reset to S32K116 MCU during cold-crank (4.5V dip) or load-dump transients; MR tied to service diagnostic port. Use Value: −40°C to +125°C rating meets AEC-Q100 Grade 2 requirements; 20ms timeout exceeds S32K116's 15ms POR requirement. | Use Scenario: Powers-on ECG front-end ASIC and BLE SoC in patch-style cardiac monitor worn continuously for 7-day diagnostics. IC Role / Device Role / Timing Role: Generates clean reset pulse to nRF52833 and AD8232 upon battery insertion or low-voltage recovery; MR used for emergency firmware reload. Use Value: Push-pull output eliminates external pullup, saving board area; 2.93V threshold avoids false triggers during BLE radio burst current draw. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar µP reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6326XR29D2 | Same 2.93V threshold and 20ms timeout, but no MR input; 3-pin SC70 package | Lacks manual reset capability; requires external switch circuit if user-initiated reset needed | Select when board space is critical and MR functionality is unnecessary |
| TPS3124E18DBVR | 2.93V threshold, 200ms timeout (not 20ms); SOT-23-5 package; 1.8V min VCC | Longer timeout may delay system boot; extra pin supports watchdog or windowed reset not present in MAX6384XS29D2 | Select only if 200ms hold time is acceptable and SOT-23 footprint is preferred |
Compared with MAX6326XR29D2 and TPS3124E18DBVR, MAX6384XS29D2 uniquely combines MR input, 20ms timeout, and SC70-4 footprint-enabling compact, manually resettable designs without compromising brownout immunity or temperature stability.
Availability
MAX6384XS29D2 is available at Aetrix Electronics and suitable for industrial PLC I/O modules, battery-powered data loggers, automotive body control units, and medical wearable sensor hubs requiring stable component supply and long-term production continuity.
Supply support for MAX6384XS29D2 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 medical applications.
The MAX6381–MAX6390 family delivers ultra-low-power, high-accuracy µP supervisory circuits optimized for space-constrained, battery-sensitive, and thermally harsh embedded systems.
FAQ
What is the exact reset threshold voltage of MAX6384XS29D2 and how stable is it over temperature?
The MAX6384XS29D2 has a factory-set nominal reset threshold of 2.93V, with guaranteed accuracy of ±2.5% over the full operating temperature range of −40°C to +125°C. Its temperature coefficient is 60ppm/°C, meaning threshold drift is limited to approximately ±15mV across the entire range. This stability is confirmed in the Electrical Characteristics table and Typical Operating Characteristics plots in the official MAX6381–MAX6390 datasheet.
Does MAX6384XS29D2 require an external pullup resistor on the RESET pin?
No, MAX6384XS29D2 does not require an external pullup resistor on the RESET pin because it features an active-low push-pull output. The internal driver actively pulls RESET low during assertion and drives it high (to VCC) when deasserted. This eliminates the need for external components and reduces BOM count and board area compared to open-drain alternatives like MAX6383 or MAX6386.
What is the function and electrical behavior of the MR pin on MAX6384XS29D2?
The MR (Manual Reset) pin on MAX6384XS29D2 is an active-low input with an internal 63kΩ pullup resistor to VCC. Driving MR to GND asserts RESET for the duration of the low signal plus the full 20ms timeout period after release. It accepts TTL/CMOS logic levels, rejects glitches shorter than 100ns, and requires no external debounce circuitry-making it ideal for direct connection to a momentary switch.
Can MAX6384XS29D2 operate reliably at VCC = 1.2V, and what happens to the RESET output below its specified minimum?
Yes, MAX6384XS29D2 guarantees valid RESET output logic states down to VCC = 1.0V, so operation at 1.2V is fully supported. Below 1.0V, the device ceases functional operation and RESET state is no longer guaranteed. The datasheet explicitly states "RESET output state guaranteed valid down to VCC = 1V", and this is verified across temperature in the Absolute Maximum Ratings and Electrical Characteristics sections.
What package type and dimensions does MAX6384XS29D2 use, and is it RoHS-compliant?
MAX6384XS29D2 uses the 4-pin SC70 package (package code X4-1), with dimensions of 1.5mm × 1.0mm × 0.8mm and wettable flanks. It is lead-free and RoHS-compliant, as indicated by the "+" suffix in the ordering information and confirmed in Maxim's package documentation (drawing 21-0098). The SC70-4 footprint is compatible with standard reflow profiles and AOI inspection.
MAX6384XS29D2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-82A, SOT-343
- Packaging:
- Bulk
- Product Status:
- Active
- 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:
- 20ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-4
MAX6384XS29D2 FAQ
1.How can I place an order for MAX6384XS29D2 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6384XS29D2 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 MAX6384XS29D2 reliable?
The price and inventory of MAX6384XS29D2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6384XS29D2 is usually 5 days.
3.What payment methods are accepted for MAX6384XS29D2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6384XS29D2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6384XS29D2?
MAX6384XS29D2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6384XS29D2 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 MAX6384XS29D2?
For technical support, including MAX6384XS29D2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6384XS29D2 requirements.
6.How does Aetrix verify that MAX6384XS29D2 is sourced from the original manufacturer or authorized distributors?
All MAX6384XS29D2 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 MAX6384XS29D2 meets industry standards.
7.What is the process for return or replacement of MAX6384XS29D2?
All MAX6384XS29D2 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6384XS29D2, 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 MAX6384XS29D2 part is unused and in its original packaging.
Return procedure for MAX6384XS29D2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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