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Analog Devices Inc./Maxim Integrated MAX6383XR16D6+T
- Part No.:
- MAX6383XR16D6+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
MAX6383XR16D6+T.pdf
- Description:
- IC MPU/RESET CIRC 1.60V SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,176
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Product details
Overview
MAX6383XR16D6+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), 560ms minimum reset timeout, and 3μA supply current at +1.8V. It monitors single VCC rail in space-constrained battery-powered systems requiring reliable power-on reset and brownout protection.
For engineers reviewing the MAX6383XR16D6+T datasheet, MAX6383XR16D6+T pinout, MAX6383XR16D6+T application, or MAX6383XR16D6+T equivalent, key selection criteria include its open-drain output architecture, guaranteed reset validity down to VCC = 1V, ±2.5% threshold accuracy over temperature, and compatibility with 3-pin SC70 footprint for ultra-compact PCB layouts.
Technical Context
The MAX6383XR16D6+T implements a precision bandgap-based voltage comparator monitoring VCC against a fixed 1.58V threshold, with internal timer ensuring 560ms minimum reset assertion after VCC recovery. Its open-drain RESET output requires an external pullup resistor and remains valid down to VCC = 1V, enabling robust reset signaling during deep brownout conditions.
No manual reset input (MR) or auxiliary RESET IN pin is present-this variant is optimized for single-rail monitoring only. The device operates across −40°C to +125°C and features negative-going VCC transient immunity up to 35µs for 100mV overdrive, per typical operating characteristics.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 1.58V (min), ±2.5% tolerance over −40°C to +125°C - ensures accurate brownout detection across automotive/industrial temperature range |
| Reset Timeout | 560ms (min) - guarantees sufficient processor initialization time after power stabilization |
| Supply Current | 3μA at +1.8V - enables multi-year operation in coin-cell–powered IoT sensors and wearables |
| Output Type | Open-drain active-low - supports wired-OR reset bus configurations and level translation with external pullup |
| Operating Voltage | 1.0V to 5.5V - allows use with core voltages as low as 1.2V logic domains while maintaining reset integrity |
| VCC Immunity | 35µs max transient duration at 100mV overdrive - suppresses false resets from short supply glitches |
| Package | 3-pin SC70 (X3+2 outline) - 1.25mm × 0.85mm footprint ideal for ultra-dense portable PCBs |
Pinout & Package
MAX6383XR16D6+T is housed in a RoHS-compliant 3-pin SC70 package (outline 21-0075, land pattern 90-0208), with 0.65mm pitch and exposed pad not connected internally.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RESET | Open-drain active-low reset output - must be pulled up externally; asserts low when VCC < 1.58V and holds for ≥560ms after VCC recovery |
| 2 | VCC | Main supply input and monitored voltage rail - powers internal circuitry and serves as reset trigger source |
| 3 | GND | Analog/digital ground reference - required for accurate threshold comparison and noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed reset threshold | 1.58V with ±2.5% accuracy over full temperature range - eliminates need for external resistor dividers or calibration |
| Ultra-low quiescent current | 3μA at +1.8V - extends battery life in always-on monitoring applications without compromising reset reliability |
| Valid reset output down to VCC = 1V | Ensures deterministic processor state during deep undervoltage events where other supervisors fail silently |
| Negative-going VCC transient rejection | 35µs immunity at 100mV overdrive - prevents spurious resets from ESD-induced supply dips or switching noise |
| Small-footprint SC70 package | 1.25mm × 0.85mm area - saves >60% board space vs. SOT-23 alternatives while maintaining thermal performance |
Applications
| Portable Medical Sensors | Industrial PLC I/O Modules |
|---|---|
|
Use Scenario: Wearable ECG patch continuously sampling biopotentials on coin-cell power with intermittent BLE transmission. IC Role / Device Role / Timing Role: Supervises 1.8V LDO output powering MCU and analog front-end; asserts reset if battery sags below 1.58V during transmit burst. Use Value: Prevents corrupted ADC data or firmware lockup by guaranteeing clean restart before next sampling cycle, enabled by 560ms timeout and 3μA draw. |
Use Scenario: DIN-rail mounted I/O module monitoring 3.3V fieldbus interface supply in harsh factory environments. IC Role / Device Role / Timing Role: Detects brownout on isolated 3.3V rail feeding RS-485 transceivers; holds reset until stable for ≥560ms post-recovery. Use Value: Eliminates communication errors caused by marginal supply during motor startup surges, leveraging ±2.5% threshold stability over −40°C to +125°C. |
| Automotive Body Control Units | Smart Home Hub Power Management |
|
Use Scenario: Low-voltage subsystem (e.g., door module) powered from 5V vehicle bus with transient-heavy environment. IC Role / Device Role / Timing Role: Monitors 5V rail for dips below 1.58V (indicating alternator dropout); open-drain output interfaces directly to MCU's active-low reset pin. Use Value: Enables AEC-Q100-compliant reset behavior using same SC70 footprint as non-automotive variants, reducing BOM complexity. |
Use Scenario: Battery-backed smart speaker hub maintaining RTC and wake-on-voice during AC outage. IC Role / Device Role / Timing Role: Supervises 3.0V backup regulator feeding real-time clock and low-power controller; asserts reset if backup voltage falls. Use Value: Ensures consistent timekeeping and fast wake response by preventing partial initialization during backup switchover, supported by VCC = 1V reset validity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6326XR16D6+T | Same 1.58V threshold and 560ms timeout, but push-pull active-low output - no external pullup required | Preferred where board space allows larger 4-pin SC70 and system lacks shared reset bus | Select MAX6326XR16D6+T if eliminating external components outweighs footprint increase; verify VCC = 1V reset validity is not required |
| TLV803EB16DBVR | 1.6V threshold (±1.5%), 200ms timeout, 0.5μA current at 1.8V - lower power but shorter timeout and tighter threshold tolerance | Better suited for ultra-low-power sub-100nA sleep modes where 200ms reset suffices | Choose TLV803EB16DBVR only if application tolerates reduced reset hold time and does not require AEC-Q100 qualification |
Compared with MAX6383XR16D6+T, MAX6326XR16D6+T simplifies layout by removing the pullup resistor but increases pin count and sacrifices VCC = 1V reset guarantee; TLV803EB16DBVR reduces current consumption significantly but trades off reset duration and automotive qualification for cost-sensitive consumer designs.
Availability
MAX6383XR16D6+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 management requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6383XR16D6+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 high-performance analog and mixed-signal ICs for demanding industrial, automotive, and communications applications.
The MAX6381–MAX6390 family delivers single/dual low-voltage supervisory circuits targeting space- and power-constrained embedded systems needing precise, low-current reset functionality with AEC-Q100 options.
FAQ
What is the exact reset threshold voltage of MAX6383XR16D6+T and how stable is it over temperature?
The MAX6383XR16D6+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. This stability is achieved via laser-trimmed bandgap references and validated through design simulation-not production testing-but specified in the Electrical Characteristics table. The MAX6383XR16D6+T maintains this tolerance without external calibration.
Does MAX6383XR16D6+T support manual reset functionality?
No, MAX6383XR16D6+T does not include a manual reset (MR) input. It belongs to the MAX6381/MAX6382/MAX6383 subgroup, which lacks MR pins entirely. Manual reset capability is only available in MAX6384–MAX6390 variants (e.g., MAX6384XR16D6+T). The MAX6383XR16D6+T is strictly a VCC-only monitoring device with open-drain reset output.
What package type and dimensions does MAX6383XR16D6+T use?
MAX6383XR16D6+T uses a 3-pin SC70 package (outline number 21-0075, land pattern 90-0208), measuring 1.25mm × 0.85mm with 0.65mm pin pitch. The package is RoHS-compliant (+ suffix), has no exposed thermal pad, and is rated for −40°C to +125°C operation. This compact footprint is identical across all MAX6381–MAX6383 SC70 variants.
Can MAX6383XR16D6+T operate reliably when VCC drops below 1.8V?
Yes, MAX6383XR16D6+T guarantees correct reset output behavior down to VCC = 1.0V, as stated in Absolute Maximum Ratings and confirmed in the "Ensuring a Valid RESET Output Down to VCC = 0V" section. While supply current rises slightly below 1.8V, the device continues asserting reset accurately until VCC recovers above 1.58V, making it suitable for deep-brownout scenarios where other supervisors lose functionality.
Is MAX6383XR16D6+T qualified for automotive applications?
MAX6383XR16D6+T itself is not automotive-qualified; only variants with /V suffix (e.g., MAX6383XR16D6/V+T) meet AEC-Q100 requirements. The +T suffix indicates RoHS compliance and tape-and-reel packaging, but does not imply automotive qualification. For automotive use, engineers must select the /V version and verify qualification status in the Ordering Information table of the datasheet.
MAX6383XR16D6+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:
- 560ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-3
MAX6383XR16D6+T FAQ
1.How can I place an order for MAX6383XR16D6+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6383XR16D6+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 MAX6383XR16D6+T reliable?
The price and inventory of MAX6383XR16D6+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6383XR16D6+T is usually 5 days.
3.What payment methods are accepted for MAX6383XR16D6+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6383XR16D6+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6383XR16D6+T?
MAX6383XR16D6+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6383XR16D6+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 MAX6383XR16D6+T?
For technical support, including MAX6383XR16D6+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6383XR16D6+T requirements.
6.How does Aetrix verify that MAX6383XR16D6+T is sourced from the original manufacturer or authorized distributors?
All MAX6383XR16D6+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 MAX6383XR16D6+T meets industry standards.
7.What is the process for return or replacement of MAX6383XR16D6+T?
All MAX6383XR16D6+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6383XR16D6+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 MAX6383XR16D6+T part is unused and in its original packaging.
Return procedure for MAX6383XR16D6+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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