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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:1,504
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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), and 20ms minimum reset timeout. It monitors VCC from +1.8V to +5.5V while consuming only 3μA at +1.8V and guarantees valid reset state down to VCC = 1V. Designed for reliable power-up/brownout detection in space-constrained embedded systems.
For engineers reviewing the MAX6384XS29D2+ datasheet, MAX6384XS29D2+ pinout, MAX6384XS29D2+ application, or MAX6384XS29D2+ equivalent, key selection criteria include its 4-pin SC70 package, debounced manual reset input (MR) with internal 63kΩ pullup, ±2.5% threshold accuracy over temperature, and immunity to short negative-going VCC transients.
Technical Context
The MAX6384XS29D2+ implements a precision voltage comparator monitoring VCC against a trimmed internal reference, triggering reset when VCC falls below 2.93V. An internal timer enforces a guaranteed minimum 20ms reset assertion after VCC recovers above threshold.
Its MR input accepts TTL/CMOS logic levels and initiates reset on low assertion; reset remains active for the full 20ms timeout after MR release. The device operates across −40°C to +125°C and maintains reset output validity down to VCC = 1V without external support circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.93V nominal, ±2.5% over −40°C to +125°C - ensures consistent brownout detection across automotive/industrial temperature ranges |
| Reset Timeout | 20ms minimum - provides sufficient hold time for μP initialization before release |
| Supply Current | 3μA at +1.8V - enables multi-year battery operation in portable equipment |
| Operating Voltage | +1.0V to +5.5V - supports core and I/O rail monitoring in modern low-voltage systems |
| Reset Output Type | Active-low push-pull - drives reset line directly without external pullup; sinks 1.2mA at VCC ≥ 2.5V |
| MR Input Pullup | 63kΩ internal resistor - eliminates need for external component; allows direct switch-to-GND connection |
| VCC Immunity | Negative-going transient rejection per graph toc07 - suppresses false resets from sub-100µs glitches up to 100mV overdrive |
Pinout & Package
MAX6384XS29D2+ is housed in a RoHS-compliant 4-pin SC70 package (package code X4+1), footprint-compatible with standard SC70 land pattern 90-0187. Dimensions: 2.0mm × 2.1mm × 0.95mm (max height).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCC | Primary supply input and monitored voltage rail; must be decoupled with 0.1µF capacitor near pin |
| 2 | RESET | Active-low push-pull reset output; asserts low during fault and remains low for full 20ms timeout after recovery |
| 3 | MR | Active-low manual reset input; internally pulled up to VCC via 63kΩ; momentary GND connection forces reset |
| 4 | GND | Power ground reference; requires low-impedance connection to system ground plane |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed reset threshold | 2.93V with ±2.5% tolerance over full industrial temperature range - eliminates external resistor network and calibration effort |
| Debounced manual reset input | MR pin includes internal 63kΩ pullup and 100ns glitch rejection - enables direct switch interface without external RC filtering |
| Ultra-low quiescent current | 3μA at +1.8V - extends battery life in always-on IoT sensors and wearables |
| Valid reset down to VCC = 1V | Guaranteed logic-level output integrity even during deep brownout - prevents undefined μP state during power collapse |
| Transient-immune comparator | Rejects negative VCC spikes ≤100µs duration at 100mV overdrive - improves reliability in noisy power environments |
Applications
| Industrial PLC Controllers | Medical Diagnostic Handhelds |
|---|---|
Use Scenario: Power sequencing and brownout protection in DIN-rail mounted programmable logic controllers operating across wide ambient temperatures. IC Role / Device Role / Timing Role: Supervises 3.3V CPU core rail and asserts active-low reset to ARM Cortex-M7 during undervoltage events. Use Value: 20ms timeout ensures complete firmware reload before peripheral initialization; ±2.5% threshold stability prevents spurious resets in unregulated 24V DC field power. | Use Scenario: Battery-backed operation of portable ultrasound imaging units requiring guaranteed boot integrity after cold start or low-battery recovery. IC Role / Device Role / Timing Role: Monitors 1.8V sensor interface rail and triggers hardware reset if voltage sags below 2.93V during high-current transducer pulsing. Use Value: 3μA supply current extends single-charge runtime by >15%; MR pin enables clinician-initiated system reboot via front-panel button. |
| Automotive Body Control Modules | Smart Energy Meters |
Use Scenario: Reset supervision for microcontrollers in door module ECUs exposed to load-dump and cold-crank conditions. IC Role / Device Role / Timing Role: Provides fail-safe reset signaling to Infineon AURIX TC3xx during 12V battery dips to 6V, with immunity to <100µs transients. Use Value: Valid reset output down to VCC = 1V ensures deterministic behavior during cranking; AEC-Q100 qualified variant available (suffix /V). | Use Scenario: Power-fail detection in ANSI C12.20-certified electricity meters using isolated DC-DC converters with variable output ripple. IC Role / Device Role / Timing Role: Watches 5.0V auxiliary supply feeding real-time clock and secure memory; asserts reset before data corruption occurs during AC dropout. Use Value: 2.93V threshold aligns with 5V rail derating margin; 20ms timeout exceeds maximum EEPROM write cycle time, preventing partial writes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX809TRD2+T | Same 2.93V threshold and 20ms timeout, but no manual reset input (MR); 3-pin SC70 package | Lacks MR functionality - unsuitable where operator-initiated reset is required | Select MAX809TRD2+T only if board space is critical and manual reset is handled externally |
| TPS3808G33DBVR | 2.93V threshold, 20ms timeout, but higher 8μA supply current at +1.8V; SOT-23-5 package with enable input | Includes EN pin for power-gating control - adds flexibility but increases pin count and layout complexity | Choose TPS3808G33DBVR when system-level power sequencing coordination is needed beyond basic reset |
Compared with MAX809TRD2+T and TPS3808G33DBVR, the MAX6384XS29D2+ uniquely delivers MR functionality in a 4-pin SC70 footprint with industry-leading 3μA quiescent current, making it optimal for compact, battery-sensitive designs requiring both automatic and manual reset capability.
Availability
MAX6384XS29D2+ is available at Aetrix Electronics and suitable for industrial PLC controllers, medical handheld diagnostics, automotive body control modules, and smart energy meters requiring stable component supply across extended temperature ranges and long production lifecycles.
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) is a semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, automotive, communications, and computing markets.
The MAX6381–MAX6390 family was designed specifically for low-voltage, low-power microprocessor reset supervision in space-constrained and battery-operated systems, emphasizing precision threshold accuracy, ultra-low current, and robust transient immunity.
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 tolerance of ±2.5% across the full operating temperature range of −40°C to +125°C. This stability is achieved through laser-trimming of on-chip references and verified by design - the MAX6384XS29D2+ maintains this accuracy without external components or calibration.
Does MAX6384XS29D2+ support manual reset, and what are the electrical requirements for the MR pin?
Yes, MAX6384XS29D2+ includes a debounced manual reset input (MR) with an internal 63kΩ pullup resistor to VCC. To assert reset, drive MR to GND with a logic-low signal (<0.3×VCC). The pin rejects glitches <100ns wide and requires no external filtering. If unused, MR may be left floating or tied to VCC.
What package type and footprint does MAX6384XS29D2+ use, and is it RoHS-compliant?
MAX6384XS29D2+ uses a 4-pin SC70 package (package code X4+1), measuring 2.0mm × 2.1mm × 0.95mm. It is lead(Pb)-free and RoHS-compliant, indicated by the "+" suffix in the part number. The recommended land pattern is Maxim document 90-0187.
Can MAX6384XS29D2+ operate reliably at very low supply voltages, and what happens to the reset output below 1.8V?
Yes, MAX6384XS29D2+ guarantees correct reset output logic state down to VCC = 1.0V. Below 1.8V, supply current drops to 3μA (typical), and the push-pull RESET output continues to sink 80µA while asserted - ensuring clean, defined reset signaling even during severe brownout conditions.
How does MAX6384XS29D2+ handle fast voltage transients on the VCC line, and is external filtering required?
MAX6384XS29D2+ incorporates inherent immunity to negative-going VCC transients up to 100µs in duration (depending on overdrive magnitude), as characterized in Figure toc07 of the datasheet. While a 0.1µF ceramic capacitor placed close to the VCC pin is recommended for general decoupling, no additional transient-filtering circuitry is required for typical automotive or industrial noise profiles.
MAX6384XS29D2+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-82A, SOT-343
- Packaging:
- Bulk
- 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:
- 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.
MAX6384XS29D2+ Tags
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