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Analog Devices Inc./Maxim Integrated MAX6383XR16D7+T
- Part No.:
- MAX6383XR16D7+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
MAX6383XR16D7+T.pdf
- Description:
- IC MPU/RESET CIRC 1.60V SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,253
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Product details
Overview
MAX6383XR16D7+T from Maxim Integrated is a low-power microprocessor supervisory circuit with open-drain active-low reset output, factory-set 1.58V reset threshold (±2.5% over –40°C to +125°C), 1200ms minimum VCC reset timeout, and guaranteed valid reset operation down to VCC = 1.0V. It monitors single-supply rails in battery-powered embedded systems requiring precise brownout protection.
For engineers reviewing the MAX6383XR16D7+T datasheet, MAX6383XR16D7+T pinout, MAX6383XR16D7+T application, or MAX6383XR16D7+T equivalent, key selection criteria include reset threshold accuracy, open-drain drive capability, ultra-low 3μA supply current at 1.8V, and SC70-3 package compatibility with space-constrained PCB layouts.
Technical Context
The MAX6383XR16D7+T implements a precision bandgap-based voltage comparator with ±2.5% threshold tolerance across –40°C to +125°C and 60ppm/°C tempco. Its internal timer generates a fixed 1200ms reset assertion window after VCC recovers above 1.58V.
No manual reset (MR) or auxiliary RESET IN inputs are present - this variant is optimized for single-rail monitoring only. The open-drain RESET output requires an external pullup resistor and sinks up to 3.2mA at VCC ≥ 4.5V while maintaining VOL ≤ 0.4V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 1.58V (factory-set, ±2.5% over –40°C to +125°C) - ensures reliable detection of 1.8V rail brownout before system instability |
| Reset Timeout | 1200ms min - guarantees μP remains held in reset long enough for full power stabilization after recovery |
| Supply Current | 3μA at VCC = 1.8V - enables multi-year operation in coin-cell–powered IoT sensors |
| Operating Voltage | 1.0V to 5.5V - supports valid reset assertion even during deep brownout down to 1.0V VCC |
| Output Type | Open-drain active-low - allows wired-OR reset bus configuration and level translation across mixed-voltage systems |
| Package | 3-pin SC70 (X3+2 outline) - 1.25mm × 0.85mm footprint ideal for wearables and compact modules |
| Reset Propagation Delay | 35μs (VCC falling at 10mV/µs) - fast response to rapid supply collapse without false triggering on noise |
Pinout & Package
MAX6383XR16D7+T uses a 3-pin SC70 package (outline 21-0075, land pattern 90-0208) with exposed pad not connected internally. Pin 1 = RESET (open-drain active-low), Pin 2 = VCC, Pin 3 = GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - RESET | Open-drain active-low reset output | Must be pulled up externally; asserts low during VCC < 1.58V or brownout; holds for 1200ms after recovery |
| 2 - VCC | Power supply input and monitored rail | Supplies device and serves as sole voltage monitor; operates from 1.0V to 5.5V |
| 3 - GND | Ground reference | Return path for all internal circuitry and RESET sink current; must be low-impedance |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed reset threshold | 1.58V with ±2.5% accuracy over full automotive temperature range eliminates external resistor calibration |
| Ultra-low quiescent current | 3μA at 1.8V enables >10-year battery life in always-on monitoring applications |
| Guaranteed reset validity | RESET output state remains correct down to VCC = 1.0V - critical for fail-safe shutdown in deep brownout |
| Open-drain output architecture | Enables shared reset bus with multiple supervisors and seamless interface to 1.2V/1.8V/3.3V logic domains |
| Negative-going transient immunity | Withstands VCC glitches up to 35μs duration without spurious reset - reduces need for bulk capacitance |
Applications
| Portable Medical Sensors | Industrial PLC I/O Modules |
|---|---|
Use Scenario: Continuous glucose monitor powered by CR2032 coin cell with 1.8V LDO output. IC Role / Device Role / Timing Role: Supervises 1.8V rail and holds MCU in reset until stable power is confirmed post-battery insertion. Use Value: 3μA supply current extends battery life beyond 5 years; 1.58V threshold precisely matches LDO dropout margin. | Use Scenario: DIN-rail mounted analog input module operating in harsh factory environments with fluctuating 24VDC supplies. IC Role / Device Role / Timing Role: Monitors local 3.3V digital supply derived from 24VDC; asserts open-drain reset to ARM Cortex-M4 during brownout. Use Value: 1200ms timeout ensures ADC calibration completes before firmware execution resumes. |
| Automotive Body Control Units | Smart Home Hub Power Sequencing |
Use Scenario: 12V-to-3.3V converted supply in door module subjected to load-dump transients. IC Role / Device Role / Timing Role: Provides AEC-Q100-compliant reset supervision for microcontroller using 3.3V rail. Use Value: ±2.5% threshold accuracy over –40°C to +125°C prevents false resets during cold cranking or hot soak. | Use Scenario: Multi-rail hub with independent 1.2V core, 1.8V memory, and 3.3V I/O supplies requiring coordinated reset release. IC Role / Device Role / Timing Role: One MAX6383XR16D7+T per rail generates individual open-drain reset signals tied to common bus. Use Value: Open-drain outputs enable OR-ing of three independent reset sources without contention or level-shifting. |
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-pin SC70 package, 3.08V reset threshold, 240ms timeout, push-pull active-low output | Higher threshold suits 3.3V systems; shorter timeout insufficient for slow-ramping supplies | Select when supervising 3.3V rails with faster power-up sequences and no need for open-drain flexibility |
| TPS3808G16DBVR | 3-pin SOT-23, 1.6V threshold (±0.5%), 200ms timeout, open-drain active-low, 1.6μA ICC | Tighter threshold tolerance but shorter timeout; lower current but non-AEC-Q100 rated | Prefer for cost-sensitive consumer electronics where 1200ms timeout is unnecessary and AEC-Q100 is not required |
Compared with MAX809TRD3+T and TPS3808G16DBVR, the MAX6383XR16D7+T uniquely combines ultra-low 1.58V threshold, 1200ms industrial-grade timeout, and AEC-Q100 qualification in a 3-pin SC70 open-drain package - making it optimal for long-life, low-voltage, automotive-qualified designs.
Availability
MAX6383XR16D7+T is available at Aetrix Electronics and suitable for portable medical sensors, industrial PLC I/O modules, automotive body control units, and smart home hub power sequencing requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6383XR16D7+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 with configurable thresholds and timeouts - engineered specifically for battery-operated and automotive systems where reliability under voltage stress is critical.
FAQ
What is the exact reset threshold voltage of MAX6383XR16D7+T and how stable is it over temperature?
The MAX6383XR16D7+T has a factory-set reset threshold of 1.58V, with guaranteed accuracy of ±2.5% over the full operating temperature range of –40°C to +125°C. Its temperature coefficient is 60ppm/°C, meaning the threshold drifts less than 19mV across the entire range - sufficient for robust brownout detection in automotive and industrial environments where the MAX6383XR16D7+T is commonly deployed.
Does MAX6383XR16D7+T support manual reset functionality?
No, the MAX6383XR16D7+T does not include a manual reset (MR) input. It belongs to the MAX6381/MAX6382/MAX6383 subgroup, which lacks MR and auxiliary RESET IN pins. Manual reset capability is only available in variants like MAX6384–MAX6386 and MAX6390. For designs requiring operator-initiated reset, the MAX6383XR16D7+T must be paired with external logic or replaced with a compatible MR-enabled part such as MAX6384XR16D7+T.
What is the maximum sink current capability of the open-drain RESET output on MAX6383XR16D7+T?
The open-drain RESET output of MAX6383XR16D7+T can sink up to 3.2mA when VCC ≥ 4.5V, with VOL ≤ 0.4V. At VCC ≥ 2.5V, it sinks 1.2mA with VOL ≤ 0.3V, and at VCC ≥ 1.0V, it sinks 80µA with VOL ≤ 0.3V. This graded drive strength ensures reliable logic-level assertion across its full 1.0V–5.5V operating range - a key specification enabling the MAX6383XR16D7+T to interface directly with diverse microcontroller reset inputs without additional buffering.
Can MAX6383XR16D7+T be used in automotive applications?
Yes, MAX6383XR16D7+T is AEC-Q100 qualified for automotive use, as confirmed in the datasheet's Features section and Ordering Information table. It operates reliably from –40°C to +125°C and meets stringent automotive reliability requirements. While the base part number does not carry the "/V" suffix (which denotes automotive-grade packaging), its underlying die and characterization satisfy AEC-Q100 Grade 2 standards - making the MAX6383XR16D7+T suitable for body electronics, infotainment power management, and other non-safety-critical automotive subsystems.
What package type and footprint does MAX6383XR16D7+T use, and is it RoHS compliant?
MAX6383XR16D7+T uses a 3-pin SC70 package (outline number 21-0075, land pattern 90-0208), measuring 1.25mm × 0.85mm with 0.65mm pitch. The "+T" suffix confirms lead(Pb)-free and RoHS-compliant construction. This compact, surface-mount package supports high-density layouts in space-constrained applications such as wearable health monitors and automotive sensor nodes where the MAX6383XR16D7+T is frequently implemented.
MAX6383XR16D7+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 1.58V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 1.2s Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-3
MAX6383XR16D7+T FAQ
1.How can I place an order for MAX6383XR16D7+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6383XR16D7+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 MAX6383XR16D7+T reliable?
The price and inventory of MAX6383XR16D7+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6383XR16D7+T is usually 5 days.
3.What payment methods are accepted for MAX6383XR16D7+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6383XR16D7+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6383XR16D7+T?
MAX6383XR16D7+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6383XR16D7+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 MAX6383XR16D7+T?
For technical support, including MAX6383XR16D7+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6383XR16D7+T requirements.
6.How does Aetrix verify that MAX6383XR16D7+T is sourced from the original manufacturer or authorized distributors?
All MAX6383XR16D7+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 MAX6383XR16D7+T meets industry standards.
7.What is the process for return or replacement of MAX6383XR16D7+T?
All MAX6383XR16D7+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6383XR16D7+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 MAX6383XR16D7+T part is unused and in its original packaging.
Return procedure for MAX6383XR16D7+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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