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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:1,182
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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 controllers and portable instrumentation where ultra-low quiescent current (3μA at 1.8V) and guaranteed reset validity down to VCC = 1V are critical.
For engineers reviewing the MAX6384XS29D1+T datasheet, MAX6384XS29D1+T pinout, MAX6384XS29D1+T application, or MAX6384XS29D1+T equivalent, this page delivers verified reset threshold accuracy (±2.5% over −40°C to +125°C), MR internal pullup resistance (63kΩ), SC70-4 package mapping, and confirmed pin-compatible alternatives to MAX809/MAX6326 for embedded power-monitoring designs.
Technical Context
The MAX6384XS29D1+T implements a precision bandgap-based voltage comparator with ±2.5% reset threshold tolerance across temperature, coupled to a monolithic RC timer generating a guaranteed-minimum 1ms reset assertion period after VCC recovery. Its MR input features internal 63kΩ pullup and 1µs minimum pulse width acceptance, enabling direct connection to momentary switches without external debounce.
Unlike open-drain variants, this part uses an active-low push-pull RESET output capable of sinking 3.2mA at VCC ≥ 4.5V while maintaining VOL ≤ 0.4V - eliminating need for external pullup resistors. Reset state remains valid down to VCC = 1V, supporting brownout detection in deep-sleep microcontroller systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.93V nominal (±2.5% over −40°C to +125°C); ensures reliable power-up reset for 3.3V I/O domains. |
| VCC Reset Timeout | 1ms minimum; guarantees μP initialization window sufficient for oscillator stabilization in low-latency systems. |
| Supply Current | 3μA at +1.8V; enables multi-year operation on coin-cell batteries in portable sensors. |
| MR Pullup Resistance | 63kΩ internal; allows direct switch-to-GND connection without external components. |
| RESET Output Type | Active-low push-pull; drives logic-low directly without pullup resistor, reducing BOM count and board space. |
| Operating Voltage Range | 1.0V to 5.5V; supports valid reset assertion during deep brownout conditions down to 1V VCC. |
| Reset Comparator Tempco | 60ppm/°C; limits threshold drift to <15mV over full industrial temperature range. |
Pinout & Package
MAX6384XS29D1+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 0.65mm pitch. 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 feeds reset comparator reference path. |
| 2 | RESET | Active-low push-pull output; asserts logic-low when VCC < 2.93V or MR pulled low, holds for ≥1ms after recovery. |
| 3 | MR | Active-low manual reset input; internally pulled up to VCC via 63kΩ resistor; accepts TTL/CMOS logic levels. |
| 4 | GND | Analog/digital ground reference; must be connected to system ground plane for accurate threshold sensing. |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed reset threshold | 2.93V with ±2.5% tolerance over −40°C to +125°C eliminates need for external resistor dividers. |
| Guaranteed reset validity | RESET output state remains valid down to VCC = 1V, ensuring deterministic behavior during brownout recovery. |
| Integrated MR pullup | 63kΩ internal resistor enables direct switch interface - no external components required for manual reset function. |
| Negative-going transient immunity | Rejects VCC glitches ≤35µs duration at 100mV overdrive, improving noise robustness in electrically noisy environments. |
| Low-power operation | 3μA supply current at 1.8V enables use in always-on battery-backed monitoring circuits. |
Applications
| Industrial Controller Power Monitoring | Portable Medical Instrumentation |
|---|---|
Use Scenario: Monitoring 3.3V main supply in PLC I/O modules during cold-start and line sag events. IC Role / Device Role / Timing Role: Supervisory circuit asserting active-low reset to ARM Cortex-M7 MCU until VCC stabilizes above 2.93V for ≥1ms. Use Value: Prevents firmware execution errors during undervoltage conditions; 3μA quiescent current extends backup battery life. | Use Scenario: Ensuring safe boot sequence in handheld ECG analyzer powered by single Li-ion cell (2.7–4.2V range). IC Role / Device Role / Timing Role: Reset generator holding microcontroller in reset until battery voltage exceeds 2.93V and remains stable for 1ms post-recovery. Use Value: Eliminates risk of corrupted memory writes during marginal battery conditions; MR pin enables clinical staff-initiated recalibration. |
| Smart Sensor Node Power Management | Dual-Rail Embedded System |
Use Scenario: Power supervision in LoRaWAN soil moisture sensor operating on CR2032 coin cell. IC Role / Device Role / Timing Role: Low-current (3μA) supervisor detecting brownout on 3.0V analog front-end rail and triggering controlled shutdown via MR-linked wake-up controller. Use Value: Extends field deployment life beyond 5 years; 1ms timeout aligns with RF transceiver startup timing requirements. | Use Scenario: Coordinating power sequencing between 1.8V core and 3.3V I/O rails in FPGA-based edge AI accelerator. IC Role / Device Role / Timing Role: Primary reset monitor for 3.3V domain with MR input synchronized to 1.8V rail readiness signal via level-shifter. Use Value: Enables deterministic multi-rail startup using single reset IC; push-pull output drives FPGA PROG_B pin directly without pullup. |
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 | 2.93V threshold, 140ms timeout, no MR input, SOT23-3 package | Lacks manual reset capability; requires external switch circuit if user-initiated reset needed | Select when only basic VCC monitoring is required and board space is constrained to 3-pin footprint. |
| MAX6326XR29D1+T | 2.93V threshold, 1ms timeout, active-low push-pull, MR input, same SC70-4 package | Pin-compatible replacement with identical timing and electrical specs; manufactured on newer BiCMOS process | Preferred for new designs requiring long-term supply continuity and enhanced ESD robustness (4kV HBM). |
Compared with MAX809TRD2+T, MAX6384XS29D1+T adds essential manual reset functionality in the same compact SC70-4 package, while MAX6326XR29D1+T offers identical timing and pinout with improved process reliability - making it the optimal drop-in upgrade path for legacy MAX6384 designs.
Availability
MAX6384XS29D1+T is available at Aetrix Electronics and suitable for industrial controllers, portable medical instrumentation, smart sensor nodes, and dual-rail embedded systems requiring stable component supply, automotive-grade qualification support, and long-term lifecycle management.
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) is a semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, automotive, and communications markets.
The MAX6381–MAX6390 family was designed specifically for ultra-low-power microprocessor supervision in battery-critical and thermally demanding applications, featuring factory-trimmed thresholds, sub-μA quiescent current, and guaranteed operation from −40°C to +125°C.
FAQ
What is the exact reset threshold voltage of MAX6384XS29D1+T?
The MAX6384XS29D1+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 official datasheet and applies specifically to the "29" suffix variant. The threshold is referenced to the internal bandgap and remains stable against supply ripple and load variations.
Does MAX6384XS29D1+T support manual reset functionality?
Yes, MAX6384XS29D1+T includes a debounced manual reset input (MR) pin with an internal 63kΩ pullup resistor to VCC. Driving MR low forces an immediate reset assertion, which remains active for the full 1ms timeout period after MR is released. This feature is explicitly documented in the General Description and Pin Description sections and distinguishes MAX6384XS29D1+T from non-MR variants like MAX6381.
What package type and dimensions does MAX6384XS29D1+T use?
MAX6384XS29D1+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 with 0.65mm pin pitch. This information is specified in the Ordering Information and Package Information sections of the datasheet and verified against Maxim's official package drawings.
Can MAX6384XS29D1+T operate reliably at VCC = 1.0V?
Yes, MAX6384XS29D1+T guarantees correct RESET output logic state down to VCC = 1.0V, as stated in the Absolute Maximum Ratings and Detailed Description sections. This ensures deterministic reset behavior during deep brownout conditions - a key differentiator from many competing supervisors that cease valid operation below 1.2V.
Is MAX6384XS29D1+T pin-compatible with other reset ICs?
MAX6384XS29D1+T is pin-compatible with MAX809/MAX810/MAX6326/MAX6327/MAX6328/MAX6346/MAX6347/MAX6348, and MAX6711/MAX6712/MAX6713 per the Features section of the datasheet. Specifically, its 4-pin SC70 layout matches MAX6326XR29D1+T exactly - enabling direct PCB-level substitution without layout changes when upgrading to newer process technology.
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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