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Analog Devices Inc./Maxim Integrated MAX6384XS27D3+T
- Part No.:
- MAX6384XS27D3+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-82A, SOT-343
- Datasheet:
-
MAX6384XS27D3+T.pdf
- Description:
- IC MPU/RESET CIRC 2.70V SC70-4
- Quantity:
- Payment:
- Shipping:
Inventory:2,735
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Product details
Overview
MAX6384XS27D3+T from Maxim Integrated is a low-power microprocessor supervisory circuit with factory-set 2.70V 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 portable battery-powered equipment and critical μP power monitoring.
For engineers reviewing the MAX6384XS27D3+T datasheet, MAX6384XS27D3+T pinout, MAX6384XS27D3+T application, or MAX6384XS27D3+T equivalent, key selection criteria include reset threshold accuracy (±2.5% over –40°C to +125°C), MR pulse width tolerance (≥1μs), negative-going VCC transient immunity, guaranteed reset assertion below 1V VCC, and SC70-4 package compatibility with space-constrained embedded designs.
Technical Context
The MAX6384XS27D3+T implements a precision bandgap-based voltage comparator for VCC monitoring against a fixed 2.70V threshold, paired with a temperature-stable RC timer generating a guaranteed-minimum 140ms reset timeout after VCC recovery. Its MR input uses internal hysteresis and glitch rejection (100ns) to prevent spurious resets during noisy manual actuation.
This device operates as a single-supply reset supervisor without auxiliary voltage monitoring (no RESET IN pin), distinguishing it from MAX6387–MAX6389 variants. Its push-pull active-low RESET output drives directly into μP reset inputs without external pullup, supporting logic-level compatibility across 1.0V–5.5V VCC range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.70V ±2.5% (–40°C to +125°C); ensures reliable brownout detection for 2.8V nominal I/O rails. |
| VCC Reset Timeout | 140ms minimum; holds μP in reset long enough for power stabilization and clock lock in low-power microcontrollers. |
| Supply Current | 3μA at +1.8V; enables multi-year operation in coin-cell–powered IoT sensors and wearables. |
| Operating Voltage Range | 1.0V to 5.5V; supports valid reset assertion even during deep brownout conditions before system shutdown. |
| MR Input Pullup | 63kΩ internal resistor; eliminates need for external pullup while enabling direct connection to open-drain logic or momentary switches. |
| Reset Output Type | Active-low push-pull; provides rail-to-rail drive strength (80μA sink at 1.0V) without external components. |
| Transient Immunity | Negative-going VCC glitches <35µs at 100mV overdrive rejected; prevents false resets in electrically noisy industrial environments. |
Pinout & Package
MAX6384XS27D3+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, optimized for high-density PCB layouts in portable electronics.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCC | Main supply input and monitored voltage source; accepts 1.0V–5.5V; powers internal comparators and timer. |
| 2 | RESET | Active-low push-pull output; asserts low during VCC undervoltage or MR activation; deasserts after timeout. |
| 3 | MR | Active-low manual reset input; internally pulled up to VCC (63kΩ); requires <0.3×VCC to assert reset. |
| 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 | 2.70V with ±2.5% tolerance over full automotive temperature range, eliminating external resistor networks. |
| Guaranteed reset validity down to VCC = 1V | Ensures deterministic μP initialization even during severe brownout, preventing undefined instruction fetches. |
| Debounced manual reset input | Integrated 100ns glitch rejection and 1μs minimum pulse width requirement eliminate need for external RC filters. |
| Low quiescent current | 3μA at 1.8V enables integration into always-on subsystems without compromising battery life. |
| SC70-4 footprint compatibility | Matches industry-standard 4-pin SC70 layout, allowing drop-in replacement of legacy supervisors like MAX809 variants. |
Applications
| Portable/Battery-Powered Equipment | Critical μP and μC Power Monitoring |
|---|---|
Use Scenario: Coin-cell–powered wireless sensor node operating on intermittent energy harvesting. IC Role / Device Role / Timing Role: Supervises 2.8V LDO output to ensure clean boot sequence and prevent firmware corruption during voltage sag. Use Value: 3μA supply current extends operational lifetime beyond 5 years; 140ms timeout accommodates slow-rising supercapacitor backup sources. | Use Scenario: Industrial PLC controller requiring fail-safe restart after AC line interruption. IC Role / Device Role / Timing Role: Monitors main 3.3V logic rail and asserts reset until stable; MR pin enables remote watchdog-triggered recovery. Use Value: ±2.5% threshold accuracy prevents premature reset during thermal drift; push-pull output drives multiple μP reset pins in parallel. |
| Computers | Controllers |
Use Scenario: Embedded SBC in network appliance with dual 1.8V/3.3V power domains. IC Role / Device Role / Timing Role: Primary supervisor for 3.3V I/O rail; coordinates with secondary supervisor on core voltage via shared reset bus. Use Value: Active-low push-pull output interfaces directly with standard μP reset inputs; no pullup required saves board area and BOM cost. | Use Scenario: Automotive body control module (BCM) with AEC-Q100 requirements. IC Role / Device Role / Timing Role: Ensures deterministic reset of ARM Cortex-M4 during cold crank (battery dip to 6V). Use Value: Negative-going transient immunity rejects ignition noise spikes; 2.70V threshold aligns with 2.8V CAN transceiver supply margin. |
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 | Fixed 3.08V reset threshold; 240ms timeout; no MR input; SC70-3 package. | Lacks manual reset capability and has higher threshold; suited for simpler 3.3V-only systems. | Select when MR functionality is unnecessary and 3.08V threshold matches target rail. |
| TPS3808G33DBVR | Adjustable threshold via external resistor; 200ms timeout; MR input; SOT-23-5 package. | Requires external resistor network; larger footprint; higher 8μA quiescent current at 1.8V. | Choose when programmable threshold is required and board space permits SOT-23-5. |
Compared with MAX809TRD3+T, MAX6384XS27D3+T offers lower threshold (2.70V vs. 3.08V) and integrated MR, enabling use in 2.8V systems and field-serviceable reset; versus TPS3808G33DBVR, it delivers 60% lower quiescent current and smaller SC70-4 footprint, prioritizing battery life and miniaturization.
Availability
MAX6384XS27D3+T is available at Aetrix Electronics and suitable for portable/battery-powered equipment, critical μP and μC power monitoring, and controllers requiring stable component supply with automotive-grade reliability and lead-free compliance.
Supply support for MAX6384XS27D3+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, mixed-signal, and power management ICs for demanding industrial, automotive, and computing applications.
The MAX6381–MAX6390 family delivers ultra-low-power, high-accuracy reset supervision for battery-critical and thermally harsh environments, with variants optimized for single/dual supply monitoring and manual reset integration.
FAQ
What is the exact reset threshold voltage of MAX6384XS27D3+T and its tolerance over temperature?
The MAX6384XS27D3+T has a factory-set reset threshold of 2.70V with ±2.5% tolerance over the full operating temperature range of –40°C to +125°C. This specification is guaranteed by design and ensures consistent brownout detection across automotive and industrial thermal profiles without calibration.
Does MAX6384XS27D3+T support manual reset functionality, and how is the MR pin biased?
Yes, MAX6384XS27D3+T includes a debounced manual reset (MR) input with an internal 63kΩ pullup resistor to VCC. The MR pin asserts reset when driven below 0.3×VCC and requires a minimum 1μs low pulse width. No external components are needed, simplifying PCB layout and reducing BOM count.
What is the guaranteed minimum reset timeout period for MAX6384XS27D3+T, and under what condition does it apply?
The MAX6384XS27D3+T guarantees a minimum reset timeout period of 140ms after VCC rises above the 2.70V threshold. This timing begins once VCC exceeds the threshold and ensures the microprocessor remains held in reset long enough for power stabilization, oscillator startup, and memory initialization.
Can MAX6384XS27D3+T operate reliably at VCC = 1.0V, and what is the reset output behavior at that voltage?
Yes, MAX6384XS27D3+T is guaranteed to assert and maintain a valid active-low reset output down to VCC = 1.0V. At this voltage, the push-pull output can sink 80μA while maintaining VOL ≤ 0.3V, ensuring compatible logic-level signaling to modern ultra-low-voltage microcontrollers.
What package type and footprint does MAX6384XS27D3+T use, and is it RoHS-compliant?
MAX6384XS27D3+T uses a 4-pin SC70 package (outline 21-0098, land pattern 90-0187), measuring 2.0mm × 2.1mm × 0.95mm. The "+T" suffix confirms it is lead(Pb)-free and RoHS-compliant, with JEDEC-standard soldering profiles (reflow peak +260°C, 10s lead temperature +300°C).
MAX6384XS27D3+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-82A, SOT-343
- Packaging:
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.7V
- 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
MAX6384XS27D3+T FAQ
1.How can I place an order for MAX6384XS27D3+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6384XS27D3+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 MAX6384XS27D3+T reliable?
The price and inventory of MAX6384XS27D3+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6384XS27D3+T is usually 5 days.
3.What payment methods are accepted for MAX6384XS27D3+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6384XS27D3+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6384XS27D3+T?
MAX6384XS27D3+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6384XS27D3+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 MAX6384XS27D3+T?
For technical support, including MAX6384XS27D3+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6384XS27D3+T requirements.
6.How does Aetrix verify that MAX6384XS27D3+T is sourced from the original manufacturer or authorized distributors?
All MAX6384XS27D3+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 MAX6384XS27D3+T meets industry standards.
7.What is the process for return or replacement of MAX6384XS27D3+T?
All MAX6384XS27D3+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6384XS27D3+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 MAX6384XS27D3+T part is unused and in its original packaging.
Return procedure for MAX6384XS27D3+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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