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Analog Devices Inc./Maxim Integrated MAX6384XS22D3-T
- Part No.:
- MAX6384XS22D3-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-82A, SOT-343
- Datasheet:
-
MAX6384XS22D3-T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-4
- Quantity:
- Payment:
- Shipping:
Inventory:1,547
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Product details
Overview
MAX6384XS22D3-T from Maxim Integrated is a low-power microprocessor supervisory circuit with active-low push-pull reset output, factory-set 2.19V reset threshold (±2.5% over -40°C to +125°C), 140ms minimum VCC reset timeout, and debounced manual reset input (MR) featuring internal 63kΩ pullup. It operates from 1.0V to 5.5V supply and consumes only 3μA at 1.8V, used in portable battery-powered equipment for reliable power-on reset and brownout protection.
For engineers reviewing the MAX6384XS22D3-T datasheet, MAX6384XS22D3-T pinout, MAX6384XS22D3-T application, or MAX6384XS22D3-T equivalent, key selection considerations include its 4-pin SC70 package, guaranteed reset validity down to VCC = 1V, ±2.5% threshold accuracy across automotive temperature range, and MR-driven reset assertion with 200ns delay and 1μs minimum pulse width.
Technical Context
The MAX6384XS22D3-T integrates a precision voltage comparator monitoring VCC against a trimmed 2.19V reference, an internal reset timer generating a fixed 140ms timeout after VCC recovery, and a dedicated MR input with internal pullup and 100ns glitch rejection. Its push-pull active-low RESET output drives directly into μP reset inputs without external components.
It features negative-going VCC transient immunity up to 150µs for 100mV overdrive, ensures valid logic state down to VCC = 1V, and supports operation across -40°C to +125°C with 60ppm/°C reset threshold tempco - all implemented in BiCMOS process for low leakage and stable performance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.19V (±2.5% over -40°C to +125°C); ensures reliable detection of 2.2V system rail brownout |
| VCC Operating Range | 1.0V to 5.5V; enables use with ultra-low-voltage cores and legacy 5V logic |
| Reset Timeout | 140ms min; guarantees sufficient hold time for full μP initialization after power recovery |
| Supply Current | 3μA at 1.8V; extends battery life in always-on portable instrumentation |
| MR Input Pullup | 63kΩ internal resistor; eliminates need for external pullup when using momentary switch |
| RESET Output Type | Active-low push-pull; drives standard μP reset pins directly without pullup resistor |
| Reset Assertion Delay | 35µs max (VCC falling at 10mV/µs); provides fast response to rapid supply collapse |
Pinout & Package
MAX6384XS22D3-T is housed in a RoHS-compliant 4-pin SC70 package (outline 21-0098, land pattern 90-0187), measuring 1.3mm × 1.1mm × 0.6mm, 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 |
| 2 | RESET | Active-low push-pull reset output; asserts low during VCC undervoltage or MR activation |
| 3 | GND | Ground reference for all internal circuitry and reset comparator |
| 4 | MR | Active-low manual reset input; internally pulled up to VCC; drives reset when pulled to GND |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed reset threshold | 2.19V with ±2.5% accuracy over full -40°C to +125°C range - eliminates external resistor divider calibration |
| Debounced manual reset input | Internal 63kΩ pullup and 100ns glitch rejection - enables direct connection to mechanical switches without RC filtering |
| Guaranteed reset validity | RESET output remains logically valid down to VCC = 1V - ensures deterministic behavior during deep brownout |
| Negative-going VCC transient immunity | Rejects transients ≤150µs wide at 100mV overdrive - prevents false resets in noisy power environments |
| Ultra-low quiescent current | 3μA at 1.8V - reduces standby power in battery-backed systems by >50% vs. legacy supervisors |
Applications
| Portable Medical Sensors | Industrial PLC I/O Modules |
|---|---|
Use Scenario: Wearable ECG sensor operating from coin-cell battery with 2.2V LDO output. IC Role / Device Role / Timing Role: Monitors 2.2V rail and asserts reset if voltage drops below 2.19V during battery depletion or load surge. Use Value: Prevents corrupted ADC sampling or flash writes during brownout, leveraging 140ms timeout to ensure full MCU reinitialization before resuming measurement. | Use Scenario: DIN-rail mounted I/O module with isolated 3.3V digital supply and field-side 24V interface. IC Role / Device Role / Timing Role: Provides primary reset supervision for ARM Cortex-M4 host processor powered by 3.3V rail. Use Value: Guarantees clean boot sequence after power interruption, using push-pull RESET to drive processor reset pin directly without external components. |
| Automotive Body Control Units | Smart Energy Meters |
Use Scenario: BCM sub-module powered from 5V vehicle bus with transient-prone environment. IC Role / Device Role / Timing Role: Supervises 5V supply and accepts manual reset via CAN-linked diagnostic command. Use Value: Leverages MR input and 150µs transient immunity to avoid spurious resets during load-dump events while enabling remote firmware recovery. | Use Scenario: Two-way AMI meter with backup supercapacitor and real-time clock. IC Role / Device Role / Timing Role: Detects main 3.3V supply failure and triggers controlled shutdown before supercapacitor depletion. Use Value: Uses 2.19V threshold aligned to supercap end-of-life voltage, ensuring RTC and metering data integrity during graceful power-down. |
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 4-pin SC70 package, 2.19V threshold, but no MR input; 240ms reset timeout | Lacks manual reset capability; requires external MR circuitry if user-initiated reset needed | Select when MR functionality is unnecessary and longer timeout is acceptable |
| TPS3808G33DBVR | 2.33V threshold, 200ms timeout, 1.8–6V operation, but 5-pin SOT-23 package | Different pin count and layout; higher supply current (12μA at 3.6V) | Choose for TI-design ecosystems where footprint compatibility is secondary to extended voltage range |
Compared with MAX809TRD3-T and TPS3808G33DBVR, MAX6384XS22D3-T uniquely combines MR input, precise 2.19V threshold, 140ms timeout, and 4-pin SC70 footprint - making it optimal for compact, manually resettable embedded systems requiring minimal BOM count and ultra-low standby current.
Availability
MAX6384XS22D3-T is available at Aetrix Electronics and suitable for portable/battery-powered equipment, industrial PLC I/O modules, and automotive body control units requiring stable component supply and long-term lifecycle support.
Supply support for MAX6384XS22D3-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 demanding industrial, automotive, and computing applications.
The MAX6381–MAX6390 family delivers low-power, high-accuracy μP reset supervision for battery-operated and automotive systems, emphasizing factory-trimmed thresholds, guaranteed operation down to 1V, and robust noise immunity.
FAQ
What is the exact reset threshold voltage of the MAX6384XS22D3-T and how accurate is it over temperature?
The MAX6384XS22D3-T has a factory-set reset threshold of 2.19V, specified with ±2.5% accuracy over the full operating temperature range of -40°C to +125°C. This tolerance is guaranteed by design and applies to all production units, ensuring consistent brownout detection across automotive and industrial environments without requiring calibration.
Does the MAX6384XS22D3-T require an external pullup resistor on the MR pin?
No, the MAX6384XS22D3-T includes an internal 63kΩ pullup resistor on the MR pin, allowing direct connection of a momentary switch between MR and GND without external components. This internal pullup eliminates BOM cost and board space while maintaining compatibility with TTL/CMOS logic drivers and open-drain signals.
What is the reset timeout duration for the MAX6384XS22D3-T and is it adjustable?
The MAX6384XS22D3-T provides a fixed minimum reset timeout of 140ms after VCC rises above the 2.19V threshold. This value is factory-programmed and not adjustable externally. The timeout is guaranteed over temperature and supply voltage, ensuring reliable μP initialization timing without dependency on external capacitors or resistors.
Can the MAX6384XS22D3-T operate reliably when VCC drops below 1.8V?
Yes, the MAX6384XS22D3-T is fully functional down to VCC = 1.0V and guarantees valid logic states on both RESET and MR pins throughout this range. Its reset output remains asserted correctly even at 1.0V, and supply current drops to just 3μA at 1.8V - making it ideal for ultra-low-voltage brownout detection in energy-harvesting and battery-depleted scenarios.
What package type and dimensions does the MAX6384XS22D3-T use?
The MAX6384XS22D3-T uses a lead-free, RoHS-compliant 4-pin SC70 package (outline number 21-0098) measuring 1.3mm × 1.1mm × 0.6mm. Its small footprint and thermal resistance of 322.6°C/W (θJA, multilayer board) support high-density PCB layouts in portable and automotive applications where space and thermal performance are critical.
MAX6384XS22D3-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:
- 2.19V
- 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
MAX6384XS22D3-T FAQ
1.How can I place an order for MAX6384XS22D3-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6384XS22D3-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 MAX6384XS22D3-T reliable?
The price and inventory of MAX6384XS22D3-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6384XS22D3-T is usually 5 days.
3.What payment methods are accepted for MAX6384XS22D3-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6384XS22D3-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6384XS22D3-T?
MAX6384XS22D3-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6384XS22D3-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 MAX6384XS22D3-T?
For technical support, including MAX6384XS22D3-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6384XS22D3-T requirements.
6.How does Aetrix verify that MAX6384XS22D3-T is sourced from the original manufacturer or authorized distributors?
All MAX6384XS22D3-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 MAX6384XS22D3-T meets industry standards.
7.What is the process for return or replacement of MAX6384XS22D3-T?
All MAX6384XS22D3-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6384XS22D3-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 MAX6384XS22D3-T part is unused and in its original packaging.
Return procedure for MAX6384XS22D3-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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