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Analog Devices Inc./Maxim Integrated MAX6384XS28D3+T
- Part No.:
- MAX6384XS28D3+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-82A, SOT-343
- Datasheet:
-
MAX6384XS28D3+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-4
- Quantity:
- Payment:
- Shipping:
Inventory:4,764
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Product details
Overview
MAX6384XS28D3+T from Maxim Integrated is a low-power microprocessor supervisory circuit with active-low push-pull reset output, factory-set 2.80V ±2.5% reset threshold, and 140ms minimum VCC reset timeout. It monitors single supply voltage (1.0V–5.5V), consumes only 3μA at 1.8V, and guarantees valid reset state down to VCC = 1V. Used in portable battery-powered equipment for reliable power-up/brownout detection.
For engineers reviewing the MAX6384XS28D3+T datasheet, MAX6384XS28D3+T pinout, MAX6384XS28D3+T application, or MAX6384XS28D3+T equivalent, key selection factors include its 4-pin SC70 package, debounced manual reset input (MR) with internal 63kΩ pullup, ±2.5% threshold accuracy over –40°C to +125°C, and immunity to negative-going VCC transients.
Technical Context
The MAX6384XS28D3+T implements a precision bandgap-based voltage comparator monitoring VCC against a fixed 2.80V threshold, with hysteresis and temperature-compensated reference (60ppm/°C tempco). Its internal timer initiates a guaranteed 140ms reset assertion after VCC rises above threshold.
It features a dedicated active-low manual reset input (MR) with 1µs minimum pulse width support, 100ns glitch rejection, and MR-to-reset delay of 200ns. The push-pull RESET output drives high-impedance loads directly without external pullup, sinking up to 3.2mA at VCC ≥ 4.5V with VOL ≤ 0.4V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.80V ±2.5% (–40°C to +125°C); ensures reliable brownout detection across automotive and industrial temperature ranges. |
| VCC Operating Range | 1.0V to 5.5V; supports operation down to ultra-low-voltage logic rails while maintaining valid reset output state. |
| Reset Timeout Period | 140ms minimum; provides sufficient hold time for microprocessor initialization during power-up or recovery. |
| Supply Current | 3μA at VCC = 1.8V; enables multi-year battery life in always-on portable instrumentation. |
| Reset Output Type | Active-low push-pull; eliminates need for external pullup resistor and supports direct interface to CMOS/TTL inputs. |
| Manual Reset Input | MR with internal 63kΩ pullup; allows momentary switch connection to GND without external components or debounce circuitry. |
| Reset Comparator Tempco | 60ppm/°C; minimizes threshold drift over temperature, critical for stable reset behavior in wide-temperature environments. |
Pinout & Package
MAX6384XS28D3+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, suitable for space-constrained portable designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCC | Primary supply input and monitored voltage rail; must be decoupled with 0.1μF capacitor near pin for transient immunity. |
| 2 | RESET | Active-low push-pull reset output; asserts low during power failure or manual reset, deasserts after 140ms timeout. |
| 3 | MR | Active-low manual reset input; internally pulled up to VCC (63kΩ); driving low forces immediate reset assertion. |
| 4 | GND | Ground reference for all internal circuitry and reset comparator; requires low-impedance connection to system ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed reset threshold | 2.80V with ±2.5% tolerance over full temperature range eliminates need for external calibration or trimming resistors. |
| Debounced manual reset input | Integrated 100ns glitch rejection and 1µs minimum pulse width support enable robust switch interfacing without external RC networks. |
| Negative-going VCC transient immunity | Withstands short-duration supply dips (e.g., 100mV overdrive for up to ~30µs) without spurious reset assertion. |
| Valid reset output down to VCC = 1V | Ensures deterministic microprocessor startup even during deep brownout conditions before full rail stabilization. |
| Low quiescent current | 3μA at 1.8V enables integration into always-on subsystems without compromising battery runtime. |
Applications
| Portable Medical Sensors | Battery-Powered IoT Edge Nodes |
|---|---|
Use Scenario: Wearable ECG monitor operating from coin-cell battery with intermittent BLE transmission. IC Role / Device Role / Timing Role: Supervises 1.8V core supply and triggers controlled MCU reset during voltage sag below 2.80V. Use Value: Prevents corrupted sensor data capture or firmware lockup during battery depletion, extending usable device life by ensuring clean restarts. |
Use Scenario: Environmental sensor node powered by Li-SOCl₂ battery, sampling every 10 minutes. IC Role / Device Role / Timing Role: Monitors 3.3V I/O rail and asserts reset if voltage drops below 2.80V during cold-temperature discharge. Use Value: Guarantees MCU enters known state before initiating measurement sequence, eliminating missed readings due to marginal supply. |
| Industrial PLC I/O Modules | Automotive Body Control Units |
Use Scenario: DIN-rail mounted digital input module exposed to 40V load-dump transients. IC Role / Device Role / Timing Role: Provides primary reset supervision for ARM Cortex-M4 controller running on regulated 3.3V rail. Use Value: 140ms timeout exceeds typical power-supply recovery time after transient suppression, preventing premature firmware execution. |
Use Scenario: Door module with LIN interface, operating across –40°C to +105°C ambient. IC Role / Device Role / Timing Role: Resets microcontroller when 5V supply falls below 2.80V during cranking or alternator dropout. Use Value: ±2.5% threshold accuracy over temperature avoids false resets in cold starts or thermal stress conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6384XS28D3/V+T | Identical electrical specs but AEC-Q100 qualified for automotive use; same 4-pin SC70 package and 2.80V/140ms configuration. | Required for under-hood or safety-critical automotive modules where qualification documentation and PPAP support are mandatory. | Select MAX6384XS28D3/V+T when automotive-grade reliability, traceability, and extended temperature validation are required. |
| TPS3123E18DBVR | 2.63V reset threshold (not 2.80V), 200ms timeout, SOT-23-5 package; higher 8μA ICC at 1.8V vs. 3μA for MAX6384XS28D3+T. | Suitable for cost-sensitive industrial controls where tighter threshold matching is not critical and longer timeout is acceptable. | Choose TPS3123E18DBVR only if 2.63V threshold aligns with system margin requirements and 5-pin layout accommodates SOT-23 footprint. |
Compared with MAX6384XS28D3/V+T, the base MAX6384XS28D3+T offers identical performance in commercial temperature grade at lower cost, while TPS3123E18DBVR trades threshold precision and quiescent current for broader vendor availability and different packaging-requiring PCB redesign and recalculating brownout margins.
Availability
MAX6384XS28D3+T is available at Aetrix Electronics and suitable for portable medical sensors, battery-powered IoT edge nodes, industrial PLC I/O modules, and automotive body control units requiring stable component supply with consistent lead times and volume pricing.
Supply support for MAX6384XS28D3+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 power management, sensing, and interface applications, serving industrial, automotive, and communications markets.
The MAX6381–MAX6390 family delivers ultra-low-power, high-accuracy reset supervision for battery-critical and thermally demanding systems, emphasizing factory-trimmed thresholds, minimal supply current, and robust transient immunity.
FAQ
What is the exact reset threshold voltage and tolerance for MAX6384XS28D3+T?
The MAX6384XS28D3+T has a factory-set reset threshold of 2.80V with ±2.5% tolerance over the full operating temperature range (–40°C to +125°C). This value is confirmed in the Reset Thresholds table of the datasheet, where suffix "28" corresponds to nominal 2.80V, and the ±2.5% spec applies across temperature per Electrical Characteristics section.
Does MAX6384XS28D3+T support manual reset, and how is it implemented?
Yes, MAX6384XS28D3+T includes a debounced manual reset input (MR) on Pin 3. It features an internal 63kΩ pullup resistor to VCC, accepts TTL/CMOS logic levels, and requires only a momentary switch to GND. The datasheet specifies 1µs minimum pulse width and 100ns glitch rejection, eliminating need for external debounce components.
What is the reset timeout period for MAX6384XS28D3+T, and is it guaranteed minimum?
The MAX6384XS28D3+T provides a guaranteed minimum reset timeout period of 140ms after VCC rises above the 2.80V threshold. This is defined by suffix "D3" in the part number and verified in the Reset Timeout Delay table, where D3 maps to 140ms (min) for MAX6384-series devices.
Which package type does MAX6384XS28D3+T use, and what are its mechanical dimensions?
MAX6384XS28D3+T uses a 4-pin SC70 package (outline number 21-0098), measuring 2.0mm × 2.1mm × 0.95mm. Land pattern number 90-0187 defines the recommended PCB footprint, and the package is RoHS-compliant (indicated by the "+" suffix).
Can MAX6384XS28D3+T operate reliably at VCC = 1.0V, and what is its behavior below that?
Yes, MAX6384XS28D3+T guarantees correct reset output logic state down to VCC = 1.0V. Below 1.0V, the device ceases functional operation; however, the datasheet explicitly states reset output remains valid and predictable through the entire 1.0V–5.5V operating range, enabling safe microprocessor initialization during deep brownout.
MAX6384XS28D3+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:
- 2.8V
- 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
MAX6384XS28D3+T FAQ
1.How can I place an order for MAX6384XS28D3+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6384XS28D3+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 MAX6384XS28D3+T reliable?
The price and inventory of MAX6384XS28D3+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6384XS28D3+T is usually 5 days.
3.What payment methods are accepted for MAX6384XS28D3+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6384XS28D3+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6384XS28D3+T?
MAX6384XS28D3+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6384XS28D3+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 MAX6384XS28D3+T?
For technical support, including MAX6384XS28D3+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6384XS28D3+T requirements.
6.How does Aetrix verify that MAX6384XS28D3+T is sourced from the original manufacturer or authorized distributors?
All MAX6384XS28D3+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 MAX6384XS28D3+T meets industry standards.
7.What is the process for return or replacement of MAX6384XS28D3+T?
All MAX6384XS28D3+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6384XS28D3+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 MAX6384XS28D3+T part is unused and in its original packaging.
Return procedure for MAX6384XS28D3+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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