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Analog Devices Inc./Maxim Integrated MAX6384XS31D3-T
- Part No.:
- MAX6384XS31D3-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-82A, SOT-343
- Datasheet:
-
MAX6384XS31D3-T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-4
- Quantity:
- Payment:
- Shipping:
Inventory:2,396
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Product details
Overview
The MAX6384XS31D3-T from Maxim Integrated is a low-power microprocessor supervisory circuit with active-low push-pull reset output, factory-set 3.08V reset threshold (±2.5% over -40°C to +125°C), 140ms minimum VCC reset timeout, and debounced manual reset input (MR). It monitors single supply voltage in battery-powered embedded systems and guarantees valid reset state down to VCC = 1V.
For engineers reviewing the MAX6384XS31D3-T datasheet, MAX6384XS31D3-T pinout, MAX6384XS31D3-T application, or MAX6384XS31D3-T equivalent, key selection criteria include reset threshold accuracy, MR pullup resistance (63kΩ), SC70-4 package footprint, and compatibility with 1.8V–5.0V supply rails in space-constrained industrial controllers.
Technical Context
This device implements a precision bandgap-based reset comparator with ±2.5% threshold tolerance across temperature, paired with a digitally controlled monostable timer for deterministic reset assertion duration. The internal MR pullup resistor (63kΩ) enables direct connection of a momentary switch to GND without external components.
Reset assertion occurs on VCC falling below 3.08V or MR pulled low; deassertion follows after 140ms timeout. Output remains valid down to VCC = 1V, supporting brownout detection in ultra-low-voltage operation where many supervisors fail.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 3.08V nominal, ±2.5% over -40°C to +125°C - ensures reliable power-fail detection across automotive and industrial temperature ranges |
| VCC Reset Timeout | 140ms minimum - provides sufficient hold time for μP initialization before release |
| Supply Current | 3μA at +1.8V - enables multi-year battery life in portable equipment |
| MR Pullup Resistance | 63kΩ - allows direct switch-to-GND interface without external resistor |
| Operating Voltage Range | 1.0V to 5.5V - supports operation during deep brownout and full rail conditions |
| Reset Output Type | Active-low push-pull - drives reset line directly without external pullup, compatible with standard μP reset inputs |
| Package | 4-pin SC70 (X4+1 outline) - 1.3mm × 1.6mm footprint for high-density PCB layouts |
Pinout & Package
MAX6384XS31D3-T uses a 4-pin SC70 package (outline 21-0098, land pattern 90-0187) with 0.65mm pitch. Pin 1 = VCC, Pin 2 = RESET, Pin 3 = MR, Pin 4 = GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VCC) | Power supply input | Monitored voltage source; device operates and asserts reset when VCC drops below 3.08V |
| 2 (RESET) | Active-low push-pull reset output | Drives μP reset pin low during fault; no external pullup required; valid down to VCC = 1V |
| 3 (MR) | Active-low manual reset input | Debounced logic input; internal 63kΩ pullup to VCC; forces reset when pulled to GND |
| 4 (GND) | Ground reference | Return path for VCC, RESET, and MR; must be low-impedance for noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed reset threshold | 3.08V with ±2.5% accuracy over full temperature range - eliminates need for external resistor divider calibration |
| Deterministic reset timeout | 140ms minimum VCC reset period - ensures μP completes power-up sequencing before release |
| Integrated MR pullup | 63kΩ internal resistor - reduces BOM count and PCB area vs. discrete pullup solutions |
| Low-voltage operation | Valid reset output down to VCC = 1V - detects brownout earlier than competitors failing at 1.5V |
| SC70-4 packaging | 1.3mm × 1.6mm footprint - enables placement in tight spaces where 6-pin μDFN is impractical |
Applications
| Industrial Controllers | Portable Medical Devices |
|---|---|
Use Scenario: PLC I/O modules requiring reliable power-on reset under fluctuating 3.3V rail conditions. IC Role / Device Role / Timing Role: Supervises main 3.3V supply and asserts reset until stable; MR enables field-service reboot. Use Value: Prevents firmware corruption during cold start or brownout; 140ms timeout aligns with ARM Cortex-M boot sequence timing. | Use Scenario: Handheld glucose meters powered by single Li-ion cell (2.8V–4.2V). IC Role / Device Role / Timing Role: Monitors declining battery voltage and triggers controlled shutdown before data loss. Use Value: 3.08V threshold matches safe cutoff voltage; 3μA quiescent current extends battery life beyond 5 years in standby. |
| Automotive Body Control Modules | Smart Sensor Nodes |
Use Scenario: CAN-connected door module operating from 5V regulated rail subject to load-dump transients. IC Role / Device Role / Timing Role: Provides glitch-immune reset during negative-going VCC transients; MR supports diagnostic mode entry. Use Value: Negative transient immunity prevents spurious resets; SC70-4 package withstands automotive thermal cycling. | Use Scenario: Wireless temperature sensor node using ultra-low-power MCU and coin-cell battery. IC Role / Device Role / Timing Role: Generates clean reset pulse at power-up and responds to button-press via MR. Use Value: Push-pull output eliminates external pullup resistor; 140ms timeout accommodates slow crystal startup in sub-1MHz MCUs. |
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 3.08V threshold and 140ms timeout, but no MR input and SC70-3 package (no MR pin) | Lacks manual reset capability; unsuitable where field service or test-mode reset is required | Select MAX809TRD3-T only if MR is unused and board space permits smaller 3-pin footprint |
| TPS3808G30DBVR | 3.0V threshold (±0.5%), 200ms timeout, 1.5μA ICC at 1.8V, SOT-23-5 package | Higher accuracy and lower current, but requires external MR pullup and larger 5-pin package | Choose TPS3808G30DBVR for battery-critical designs needing tighter threshold tolerance and longer shelf life |
Compared with MAX809TRD3-T, MAX6384XS31D3-T adds MR functionality in same-outline SC70-4 package; versus TPS3808G30DBVR, it trades 0.5% threshold accuracy for integrated MR pullup and smaller footprint-critical for compact consumer electronics.
Availability
MAX6384XS31D3-T is available at Aetrix Electronics and suitable for industrial controllers, portable medical devices, automotive body control modules, and smart sensor nodes requiring stable component supply with guaranteed long-term availability.
Supply support for MAX6384XS31D3-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 focus on power management and reliability-critical functions.
The MAX6381–MAX6390 family delivers low-power, high-accuracy reset supervision for microprocessor-based systems where supply stability and deterministic timing are essential.
FAQ
What is the exact reset threshold voltage of the MAX6384XS31D3-T?
The MAX6384XS31D3-T has a factory-set nominal reset threshold of 3.08V, 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, where suffix "31" corresponds to VTH(min) = 3.00V, VTH(nom) = 3.08V, VTH(max) = 3.15V at +25°C.
Does the MAX6384XS31D3-T require an external pullup resistor on the MR pin?
No, the MAX6384XS31D3-T includes an internal 63kΩ pullup resistor on the MR pin, allowing direct connection of a momentary switch to GND without external components. This is explicitly stated in the Pin Description section and Electrical Characteristics table, where MR internal pullup resistance is specified as 32kΩ to 100kΩ for MAX6384–MAX6389.
What is the function of the RESET output on the MAX6384XS31D3-T?
The RESET output of the MAX6384XS31D3-T is an active-low push-pull driver that asserts low when VCC falls below 3.08V or when MR is pulled low. It remains low for a minimum of 140ms after VCC rises above threshold or MR is released, ensuring reliable μP initialization. The push-pull structure eliminates need for external pullup resistors.
Can the MAX6384XS31D3-T operate with a supply voltage below 1.8V?
Yes, the MAX6384XS31D3-T operates from 1.0V to 5.5V and guarantees valid reset output state down to VCC = 1V. Its supply current is specified as low as 3μA at +1.8V, and the datasheet confirms functional operation-including correct RESET logic level-at VCC ≥ 1V, enabling use in deep brownout scenarios.
What package type and dimensions does the MAX6384XS31D3-T use?
The MAX6384XS31D3-T uses a 4-pin SC70 package (outline number 21-0098, land pattern 90-0187), measuring 1.3mm × 1.6mm with 0.65mm pin pitch. This is confirmed in the Package Information section and Pin Configurations diagram, where MAX6384–MAX6390 variants are explicitly listed as available in 4-pin SC70.
MAX6384XS31D3-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:
- 3.08V
- 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
MAX6384XS31D3-T FAQ
1.How can I place an order for MAX6384XS31D3-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6384XS31D3-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 MAX6384XS31D3-T reliable?
The price and inventory of MAX6384XS31D3-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6384XS31D3-T is usually 5 days.
3.What payment methods are accepted for MAX6384XS31D3-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6384XS31D3-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6384XS31D3-T?
MAX6384XS31D3-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6384XS31D3-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 MAX6384XS31D3-T?
For technical support, including MAX6384XS31D3-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6384XS31D3-T requirements.
6.How does Aetrix verify that MAX6384XS31D3-T is sourced from the original manufacturer or authorized distributors?
All MAX6384XS31D3-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 MAX6384XS31D3-T meets industry standards.
7.What is the process for return or replacement of MAX6384XS31D3-T?
All MAX6384XS31D3-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6384XS31D3-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 MAX6384XS31D3-T part is unused and in its original packaging.
Return procedure for MAX6384XS31D3-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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