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Analog Devices Inc./Maxim Integrated MAX6384XS29D3-T
- Part No.:
- MAX6384XS29D3-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-82A, SOT-343
- Datasheet:
-
MAX6384XS29D3-T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-4
- Quantity:
- Payment:
- Shipping:
Inventory:2,023
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Product details
Overview
The MAX6384XS29D3-T from Maxim Integrated is a low-power microprocessor supervisory circuit with factory-set 2.93V reset threshold, 140ms minimum VCC reset timeout, and active-low push-pull reset output. It monitors +1.8V to +5.0V supply rails, consumes only 3μA at +1.8V, guarantees valid reset state down to VCC = 1V, and features a debounced manual reset input (MR) with internal 63kΩ pullup - used in battery-powered controllers and portable instrumentation for reliable power-on reset and brownout protection.
For engineers reviewing the MAX6384XS29D3-T datasheet, MAX6384XS29D3-T pinout, MAX6384XS29D3-T application, or MAX6384XS29D3-T equivalent, key selection criteria include its 2.93V ±2.5% threshold accuracy over –40°C to +125°C, 4-pin SC70 package footprint, MR input compatibility with TTL/CMOS logic, and guaranteed reset assertion during negative-going VCC transients up to 35µs at 100mV overdrive.
Technical Context
This device implements a precision voltage comparator with internal 1.27V reference for threshold detection and a digital timeout counter triggered on VCC fall or MR assertion. The reset output remains asserted for the full 140ms (min) after VCC rises above 2.93V or after MR is released, with glitch rejection of 100ns on MR and 35µs immunity to VCC transients.
It operates across the full industrial temperature range (–40°C to +125°C), supports VCC as low as 1.0V while maintaining valid reset logic levels, and uses BiCMOS process technology to achieve ultra-low quiescent current (3μA at 1.8V) without sacrificing noise immunity or timing accuracy.
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 automotive and industrial environments |
| VCC Reset Timeout | 140ms (minimum) - guarantees sufficient μP initialization time after power recovery |
| Supply Current | 3μA at +1.8V - enables multi-year operation in coin-cell–powered IoT sensors |
| MR Input Pullup | 63kΩ internal resistor - eliminates need for external pullup in manual reset switch circuits |
| Operating Voltage | +1.0V to +5.5V - supports valid reset assertion even during deep brownout conditions |
| Reset Output Type | Active-low push-pull - drives reset line directly without external pullup, compatible with standard μP reset inputs |
| MR Glitch Rejection | 100ns - suppresses EMI-induced false resets in noisy industrial enclosures |
Pinout & Package
MAX6384XS29D3-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, with thermal resistance θJA = 322.6°C/W on multilayer board.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCC | Primary supply input and monitored voltage rail - powers internal circuitry and serves as reset trigger source |
| 2 | RESET | Active-low push-pull output - asserts low during reset condition and deasserts high after timeout; sinks 3.2mA at VCC ≥ 4.5V |
| 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 comparators, timers, and output drivers - must be connected to system ground plane |
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 | MR pin accepts direct connection to momentary switch without external RC network - reduces BOM count and PCB area |
| Ultra-low supply current | 3μA at 1.8V - extends battery life in portable medical devices and wireless sensor nodes |
| Negative-going VCC transient immunity | Withstands 35µs glitches at 100mV overdrive - prevents spurious resets in electrically noisy motor-control systems |
| Valid reset down to VCC = 1V | Guaranteed logic-level integrity on RESET pin even during severe brownout - ensures deterministic μP behavior during power collapse |
Applications
| Portable Power Management | Industrial Controller Monitoring |
|---|---|
Use Scenario: Battery-powered handheld test equipment requiring stable reset during Li-ion discharge from 4.2V to 2.8V. IC Role / Device Role / Timing Role: Supervises main VCC rail and asserts reset if voltage drops below 2.93V; provides 140ms timeout to allow ADC and display controller initialization. Use Value: Prevents corrupted firmware execution during battery sag, eliminating field failures in field-service tools. | Use Scenario: PLC I/O module operating in factory ambient with 24VDC-derived 3.3V rail subject to switching noise. IC Role / Device Role / Timing Role: Monitors 3.3V supply and generates clean reset pulse on brownout; MR pin enables operator-initiated reboots via front-panel button. Use Value: Eliminates need for discrete RC reset networks and improves immunity to 100ns EFT bursts per IEC 61000-4-4. |
| Medical Sensor Node | Automotive Body Control Module |
Use Scenario: Wearable ECG patch powered by CR2032 coin cell, where supply decays from 3.0V to 2.0V over operational life. IC Role / Device Role / Timing Role: Detects end-of-life voltage drop below 2.93V and holds μP in reset until replacement; MR allows clinical staff to force recalibration reset. Use Value: Ensures data integrity by blocking measurement acquisition below safe operating voltage. | Use Scenario: Low-voltage subsystem in 12V automotive architecture, monitoring 5V logic rail derived from buck converter. IC Role / Device Role / Timing Role: Provides AEC-Q100–qualified supervision (via /V variant) with 2.93V threshold matching MCU VDDIO spec; MR supports service-mode diagnostics. Use Value: Meets ISO 16750-2 load-dump and cold-crank robustness requirements without additional protection circuitry. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX809TRD3+T | Same 2.93V threshold and 140ms timeout, but no MR input and 3-pin SC70 package | Lacks manual reset capability; requires external switch circuit if reboot function needed | Select when MR is unnecessary and board space is constrained to 3-pin footprint |
| TPS3808G33DBVR | 2.93V threshold, 200ms timeout (not 140ms), SOT-23-5 package with enable pin | Includes EN input for power sequencing control but longer timeout may delay system boot | Choose when system requires programmable enable gating and can accommodate 5-pin layout |
Compared with MAX809TRD3+T, the MAX6384XS29D3-T adds integrated MR functionality in a 4-pin SC70, simplifying front-panel design; versus TPS3808G33DBVR, it offers tighter timeout matching (140ms vs 200ms) and lower quiescent current (3μA vs 8μA), better suiting ultra-low-power applications.
Availability
MAX6384XS29D3-T is available at Aetrix Electronics and suitable for portable instrumentation, industrial controllers, and battery-powered medical devices requiring stable component supply with guaranteed long-term continuity.
Supply support for MAX6384XS29D3-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 computing applications, with emphasis on low-power, high-reliability solutions.
The MAX6381–MAX6390 family delivers single-supply microprocessor supervisory circuits optimized for space-constrained, battery-sensitive systems requiring factory-trimmed thresholds, ultra-low ICC, and robust MR integration - targeting portable, medical, and automotive edge nodes.
FAQ
What is the exact reset threshold voltage of the MAX6384XS29D3-T?
The MAX6384XS29D3-T has a factory-set nominal reset threshold of 2.93V, with guaranteed tolerance of ±2.5% over the full operating temperature range (–40°C to +125°C). This value is confirmed in the Reset Thresholds table of the datasheet and applies specifically to the "29" suffix in the part number. The MAX6384XS29D3-T does not require external resistor trimming to achieve this accuracy.
Does the MAX6384XS29D3-T support manual reset functionality?
Yes, the MAX6384XS29D3-T includes a dedicated MR (manual reset) input pin with an internal 63kΩ pullup resistor to VCC. Driving MR low forces an immediate reset assertion, which remains active for the full 140ms timeout after MR is released. This feature is explicitly documented for MAX6384-series devices and is implemented in the MAX6384XS29D3-T's 4-pin SC70 pinout.
What is the minimum operating voltage for valid reset operation of the MAX6384XS29D3-T?
The MAX6384XS29D3-T guarantees correct reset output logic states down to VCC = 1.0V, as specified in the Absolute Maximum Ratings and Electrical Characteristics tables. Below 1.0V, reset behavior is not characterized. This ensures deterministic μP reset assertion even during deep brownout events, a key requirement validated for the MAX6384XS29D3-T in industrial and automotive applications.
Is the MAX6384XS29D3-T pin-compatible with older Maxim reset ICs like the MAX809?
No, the MAX6384XS29D3-T is not pin-compatible with the MAX809 series. While the datasheet notes functional similarity and pin compatibility *within certain families*, the MAX6384XS29D3-T uses a 4-pin SC70 package with VCC, RESET, MR, and GND pins - whereas the MAX809TRD3+T uses a 3-pin SC70 (VCC, RESET, GND) with no MR pin. Layout changes are required to substitute the MAX6384XS29D3-T for a MAX809.
What package type and dimensions does the MAX6384XS29D3-T use?
The MAX6384XS29D3-T is supplied in a lead-free, RoHS-compliant 4-pin SC70 package (outline number 21-0098, land pattern 90-0187), measuring 2.0mm × 2.1mm × 0.95mm. This package is distinct from the 3-pin SC70 used by MAX6381/MAX6382/MAX6383 and the 6-pin μDFN used by LT-suffixed variants. The "XS" prefix in the part number explicitly denotes the 4-pin SC70 option.
MAX6384XS29D3-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:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-4
MAX6384XS29D3-T FAQ
1.How can I place an order for MAX6384XS29D3-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6384XS29D3-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 MAX6384XS29D3-T reliable?
The price and inventory of MAX6384XS29D3-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6384XS29D3-T is usually 5 days.
3.What payment methods are accepted for MAX6384XS29D3-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6384XS29D3-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6384XS29D3-T?
MAX6384XS29D3-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6384XS29D3-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 MAX6384XS29D3-T?
For technical support, including MAX6384XS29D3-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6384XS29D3-T requirements.
6.How does Aetrix verify that MAX6384XS29D3-T is sourced from the original manufacturer or authorized distributors?
All MAX6384XS29D3-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 MAX6384XS29D3-T meets industry standards.
7.What is the process for return or replacement of MAX6384XS29D3-T?
All MAX6384XS29D3-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6384XS29D3-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 MAX6384XS29D3-T part is unused and in its original packaging.
Return procedure for MAX6384XS29D3-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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