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Analog Devices Inc./Maxim Integrated MAX6383XR16D3
- Part No.:
- MAX6383XR16D3
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
MAX6383XR16D3.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,014
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Product details
Overview
The MAX6383XR16D3 from Maxim Integrated is a single-supply, open-drain active-low microprocessor supervisory circuit designed for low-voltage systems. It monitors VCC from +1.0V to +5.5V with a factory-set reset threshold of +1.58V (±2.5% over -40°C to +125°C), consumes only 3µA at +1.8V, and provides a 140ms minimum reset timeout period. It is used in portable/battery-powered equipment to ensure reliable µP initialization during brownout or power-up.
For engineers reviewing the MAX6383XR16D3 datasheet, MAX6383XR16D3 pinout, MAX6383XR16D3 application, or MAX6383XR16D3 equivalent, key selection criteria include its open-drain active-low RESET output, guaranteed valid operation down to VCC = 1V, ±2.5% threshold accuracy over temperature, 140ms reset timeout, and SC70-3 package compatibility with space-constrained embedded designs.
Technical Context
The MAX6383XR16D3 implements a precision bandgap-based voltage comparator with internal hysteresis to detect VCC falling below its fixed +1.58V threshold. Its reset assertion is synchronized to an internal timer that guarantees a minimum 140ms deassertion delay after VCC rises above threshold.
As a member of the MAX6381–MAX6390 family, it uses BiCMOS process technology (647 transistors) and features negative-going VCC transient immunity up to 35µs for 100mV overdrive, with no manual reset input or auxiliary voltage monitor-distinguishing it from variants like MAX6384 or MAX6387.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | +1.58V (min), +1.61V (max); factory-trimmed for precise brownout detection at ultra-low supply voltages |
| Threshold Accuracy | ±2.5% over -40°C to +125°C; ensures reliable reset assertion across automotive and industrial temperature ranges |
| Reset Timeout | 140ms (min); guarantees sufficient µP hold time for full register initialization and memory stabilization |
| Supply Current | 3µA at +1.8V; enables multi-year battery life in always-on IoT sensors and wearables |
| Operating Voltage | +1.0V to +5.5V; supports direct interface with 1.2V, 1.8V, 2.5V, 3.3V, and 5V logic domains |
| Output Type | Open-drain active-low RESET; requires external pullup for level translation and wired-OR capability |
| VCC Validity | RESET state guaranteed down to VCC = 1.0V; prevents spurious release during deep brownout |
Pinout & Package
MAX6383XR16D3 is housed in a 3-pin SC70-3 package (package code X3-2), measuring 2.0mm × 2.1mm × 0.95mm, with lead-free finish. Pin 1 is RESET (open-drain active-low), Pin 2 is VCC, and Pin 3 is GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RESET | Open-drain active-low reset output; must be pulled up externally to define logic-high level and support multiple devices on shared reset bus |
| 2 | VCC | Main supply input and monitored voltage rail; powers internal circuitry and serves as reference for reset threshold detection |
| 3 | GND | Analog and digital ground reference; must be connected to system ground plane with low-impedance path to minimize noise coupling |
Key Features
| Feature | Design Value |
|---|---|
| Factory-set +1.58V threshold | Eliminates external resistor divider, reducing BOM count and layout area in compact 1.8V/2.5V systems |
| ±2.5% accuracy over temp | Ensures deterministic reset behavior without calibration across extended industrial (-40°C to +125°C) environments |
| 140ms min reset timeout | Meets JEDEC JESD8-12B timing requirements for 32-bit ARM Cortex-M boot sequences |
| 3µA supply current at 1.8V | Enables integration into energy-harvesting nodes where quiescent current dominates lifetime budget |
| Open-drain RESET output | Allows flexible voltage-level translation and safe reset bus sharing with mixed-voltage SoCs |
Applications
| Portable Medical Sensors | Industrial PLC I/O Modules |
|---|---|
Use Scenario: Wearable ECG patch operating from coin-cell battery with intermittent BLE transmission. IC Role / Device Role / Timing Role: Supervises 1.8V LDO output to assert RESET during battery sag below 1.6V, holding µC in reset until stable supply resumes. Use Value: Prevents corrupted ADC sampling and firmware crashes during voltage droop, extending usable battery life by avoiding repeated failed wakeups. | Use Scenario: DIN-rail mounted analog input module powered from 24VDC converted to 3.3V/1.8V rails. IC Role / Device Role / Timing Role: Monitors 1.8V core supply to guarantee clean processor startup after field wiring-induced transients. Use Value: Eliminates need for discrete RC reset networks, improving long-term reliability in electrically noisy factory environments. |
| Automotive Body Control Units | Smart Home Hub Power Management |
Use Scenario: Low-power CAN gateway MCU powered via buck converter from vehicle battery (9V–16V). IC Role / Device Role / Timing Role: Tracks 1.8V digital core rail; asserts open-drain RESET to all peripherals when input undervoltage causes regulator dropout. Use Value: Ensures deterministic fail-safe state during cold-crank events, meeting ISO 16750-2 pulse 4 immunity requirements. | Use Scenario: Voice-controlled hub using dual-rail PMIC (3.3V I/O, 1.1V core) with always-on microphone subsystem. IC Role / Device Role / Timing Role: Supervises 1.1V core rail to prevent partial execution during brownout, coordinating with PMIC's power-good signals. Use Value: Avoids flash corruption and secure boot failures during AC line sags, maintaining OTA update integrity. |
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 | +3.08V reset threshold (not +1.58V); 240ms reset timeout; SC70-3 package | Designed for 3.3V systems, not low-voltage 1.2V/1.8V domains | Select only if monitoring higher VCC rails; incompatible for 1.8V brownout detection |
| TPS3808G16DBVR | +1.6V threshold (±0.5%), 140ms timeout, open-drain output; 5-pin SOT-23 package | Requires external pullup; lacks transient immunity specs beyond 100ns glitch rejection | Valid alternative for space-tolerant designs needing tighter threshold tolerance, but verify VCC transient robustness per application |
Compared with MAX809TRD3+T and TPS3808G16DBVR, the MAX6383XR16D3 uniquely delivers factory-trimmed +1.58V detection with ±2.5% accuracy over full industrial temperature range in a 3-pin SC70, enabling minimal-footprint supervision of sub-2V logic supplies without external components.
Availability
MAX6383XR16D3 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 with guaranteed long-term availability.
Supply support for MAX6383XR16D3 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 computing applications.
The MAX6381–MAX6390 product line delivers ultra-low-power, precision voltage supervisors targeting battery-operated and thermally harsh embedded systems where deterministic reset timing and minimal quiescent current are critical.
FAQ
What is the exact reset threshold voltage of the MAX6383XR16D3?
The MAX6383XR16D3 has a factory-set reset threshold of +1.58V (minimum), +1.61V (maximum), with nominal +1.58V at +25°C and ±2.5% accuracy maintained over the full -40°C to +125°C operating temperature range. This value is laser-trimmed during production and does not require external calibration.
Does the MAX6383XR16D3 include a manual reset input (MR)?
No, the MAX6383XR16D3 does not feature a manual reset input. It is a basic single-supply supervisor with only VCC monitoring and open-drain RESET output. Manual reset capability is present only in MAX6384/MAX6385/MAX6386/MAX6390 variants - the MAX6383XR16D3 pinout contains RESET, VCC, and GND only.
What package type and dimensions does the MAX6383XR16D3 use?
The MAX6383XR16D3 is supplied in a 3-pin SC70-3 package (package code X3-2), with footprint dimensions of 2.0mm × 2.1mm and height of 0.95mm. It is RoHS-compliant and lead-free, compatible with standard reflow soldering profiles per JEDEC J-STD-020.
Can the MAX6383XR16D3 operate reliably below 1.8V supply?
Yes, the MAX6383XR16D3 operates from +1.0V to +5.5V and guarantees valid RESET output state down to VCC = 1.0V. At +1.8V, its supply current is 3µA; at +1.0V, ICC remains functional though not specified in datasheet - the device maintains correct logic assertion/deassertion throughout this range.
Is the MAX6383XR16D3 pin-compatible with other members of the MAX6381–MAX6390 family?
The MAX6383XR16D3 shares the same 3-pin SC70-3 pinout (RESET/VCC/GND) with MAX6381 and MAX6382, but differs functionally: MAX6381 has push-pull active-low output, MAX6382 has push-pull active-high output, while MAX6383XR16D3 uses open-drain active-low. Direct replacement requires verifying output drive architecture and external pullup necessity.
MAX6383XR16D3 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:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-3
MAX6383XR16D3 FAQ
1.How can I place an order for MAX6383XR16D3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6383XR16D3 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 MAX6383XR16D3 reliable?
The price and inventory of MAX6383XR16D3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6383XR16D3 is usually 5 days.
3.What payment methods are accepted for MAX6383XR16D3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6383XR16D3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6383XR16D3?
MAX6383XR16D3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6383XR16D3 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 MAX6383XR16D3?
For technical support, including MAX6383XR16D3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6383XR16D3 requirements.
6.How does Aetrix verify that MAX6383XR16D3 is sourced from the original manufacturer or authorized distributors?
All MAX6383XR16D3 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 MAX6383XR16D3 meets industry standards.
7.What is the process for return or replacement of MAX6383XR16D3?
All MAX6383XR16D3 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6383XR16D3, 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 MAX6383XR16D3 part is unused and in its original packaging.
Return procedure for MAX6383XR16D3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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