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Analog Devices Inc./Maxim Integrated MAX6383XR17D3
- Part No.:
- MAX6383XR17D3
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
MAX6383XR17D3.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,636
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Product details
Overview
MAX6383XR17D3 from Maxim Integrated is a low-power microprocessor supervisory circuit with open-drain active-low reset output, factory-set 1.67V reset threshold (±2.5% over -40°C to +125°C), 140ms minimum reset timeout, and 3µA supply current at +1.8V. It monitors single-supply VCC in battery-powered IoT sensors and portable medical devices where brownout immunity and ultra-low quiescent current are critical.
For engineers reviewing the MAX6383XR17D3 datasheet, MAX6383XR17D3 pinout, MAX6383XR17D3 application, or MAX6383XR17D3 equivalent, key selection factors include its open-drain output requiring external pull-up, guaranteed reset validity down to VCC = 1V, ±2.5% threshold accuracy over full temperature range, and SC70-3 package compatibility with space-constrained PCB layouts.
Technical Context
The MAX6383XR17D3 implements a precision bandgap-based voltage comparator with internal 1.27V reference for threshold detection, paired with a temperature-stable RC timer for fixed 140ms reset assertion after VCC recovery. Its open-drain RESET output requires an external pull-up resistor and remains asserted during VCC undervoltage or transient events exceeding comparator overdrive limits.
Unlike push-pull variants, this device lacks manual reset (MR) or auxiliary RESET IN inputs-its functionality is strictly single-supply monitoring with factory-trimmed threshold and timeout. The 3-pin SC70 package integrates only VCC, GND, and RESET terminals, eliminating unused pins found in 4- or 6-pin family members.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 1.67V nominal (1.62V–1.71V min/max), factory-trimmed for precise brownout detection at low-voltage rails |
| Reset Timeout | 140ms minimum, ensures µP reset pulse meets boot-loader timing requirements after power recovery |
| Supply Current | 3µA at +1.8V, enables multi-year operation in coin-cell-powered edge nodes |
| Threshold Accuracy | ±2.5% over -40°C to +125°C, eliminates need for external calibration in automotive/industrial environments |
| Operating Voltage | 1.0V to 5.5V, supports valid reset assertion even during deep brownout down to 1V VCC |
| Output Type | Open-drain active-low, allows wired-OR reset bus sharing across multiple supervisors or logic domains |
| Tempco | 60ppm/°C, maintains threshold stability across wide ambient temperature swings |
Pinout & Package
MAX6383XR17D3 is housed in a 3-pin SC70 package (X3-2 footprint), measuring 2.0mm × 2.1mm × 0.95mm. This ultra-compact outline suits high-density portable PCBs and eliminates thermal pad requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCC | Main supply input and monitored voltage rail; powers internal circuitry and sets reset threshold reference point |
| 2 | RESET | Open-drain active-low reset output; sinks current when asserted, requires external pull-up to define logic-high level |
| 3 | GND | Analog/digital ground reference; must be connected directly to system ground plane for noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| Factory-set 1.67V threshold | Eliminates external resistor divider, reducing BOM count and layout area in cost-sensitive designs |
| 140ms reset timeout | Matches typical microcontroller boot initialization windows without requiring external timing components |
| 3µA supply current at 1.8V | Extends battery life in always-on sensor nodes by minimizing standby power drain |
| ±2.5% threshold accuracy over temp | Ensures reliable reset assertion across automotive under-hood or industrial control cabinet temperatures |
| Open-drain output | Enables flexible voltage-level translation and multi-source reset bus arbitration in mixed-voltage systems |
Applications
| Wearable Health Monitors | Industrial PLC I/O Modules |
|---|---|
Use Scenario: Continuous ECG/SpO₂ sensing powered by CR2032 coin cell with intermittent BLE transmission. IC Role / Device Role / Timing Role: Supervises 1.8V LDO output to prevent firmware crash during battery voltage sag. Use Value: 3µA quiescent current extends operational life beyond 2 years; 1.67V threshold aligns with LDO dropout voltage. | Use Scenario: DIN-rail mounted digital input module operating in factory environments with 24V DC supply and local 3.3V regulation. IC Role / Device Role / Timing Role: Monitors 3.3V logic rail for brownout events caused by EMI or load transients. Use Value: ±2.5% threshold accuracy ensures consistent reset behavior across -40°C to +85°C ambient range. |
| Smart Meter Battery Backup | Automotive Body Control Units |
Use Scenario: Electricity meter retaining time-of-use data during main AC failure using supercapacitor backup. IC Role / Device Role / Timing Role: Asserts reset to MCU when backup rail drops below 1.67V during capacitor discharge. Use Value: 140ms timeout guarantees EEPROM write completion before processor halt. | Use Scenario: Door module controlling window lift, mirror fold, and interior lighting with 5V local regulation. IC Role / Device Role / Timing Role: Detects 5V rail collapse during load dump or cold-crank conditions. Use Value: Open-drain output interfaces directly to 5V-tolerant MCU reset pin without 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 |
|---|---|---|---|
| MAX6326LTR17D3+ | Same 1.67V threshold and 140ms timeout, but push-pull active-low output; no external pull-up required | Suitable where board space permits larger SOT23-3 package and system lacks shared reset bus | Select MAX6326LTR17D3+ if push-pull drive simplifies layout and eliminates pull-up resistor |
| TPS3808G17DBVR | 1.7V threshold (±0.5%), 200ms timeout, 1.1µA IQ at 1.8V; TI's nano-power supervisor | Better threshold accuracy and lower IQ, but requires external capacitor for timeout adjustment | Select TPS3808G17DBVR if sub-2µA IQ is mandatory and timeout flexibility justifies added component |
Compared with MAX6326LTR17D3+ and TPS3808G17DBVR, the MAX6383XR17D3 offers optimal trade-off between ultra-low IQ (3µA), SC70-3 footprint, and open-drain flexibility for multi-drop reset buses-making it ideal for space-constrained, battery-operated systems needing deterministic timing without external components.
Availability
MAX6383XR17D3 is available at Aetrix Electronics and suitable for wearable health monitors, smart meter battery backup circuits, and automotive body control units requiring stable component supply with lead-free compliance and -40°C to +125°C operation.
Supply support for MAX6383XR17D3 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 power, sensing, and connectivity applications in industrial, automotive, and computing markets.
The MAX638x series was developed specifically for low-voltage microprocessor supervision in battery-powered and thermally demanding environments, emphasizing nanoscale leakage control and factory-trimmed voltage references.
FAQ
What is the exact reset threshold voltage of MAX6383XR17D3?
The MAX6383XR17D3 has a factory-set nominal reset threshold of 1.67V, with guaranteed minimum and maximum values of 1.62V and 1.71V respectively over the full -40°C to +125°C temperature range, per the datasheet's Reset Thresholds table (suffix "17"). This ±2.5% tolerance ensures reliable brownout detection without external calibration.
Does MAX6383XR17D3 support manual reset functionality?
No, MAX6383XR17D3 does not include a manual reset (MR) input. It is a dedicated single-supply supervisor with only VCC, GND, and open-drain RESET pins. Manual reset capability is present only in MAX6384/MAX6385/MAX6386/MAX6390 variants, which feature 4-pin SC70 or 6-pin µDFN packages.
What package type and dimensions does MAX6383XR17D3 use?
MAX6383XR17D3 uses the 3-pin SC70 package (pkg code X3-2), measuring 2.0mm × 2.1mm × 0.95mm with a standard 0.65mm pin pitch. This compact outline is optimized for high-density PCB layouts in portable electronics and matches footprints of other SC70 supervisors like MAX809.
Can MAX6383XR17D3 operate reliably below 1.8V supply?
Yes, MAX6383XR17D3 operates from 1.0V to 5.5V and guarantees valid reset output state down to VCC = 1.0V. Its internal circuitry remains functional and asserts reset correctly even during deep brownout conditions, making it suitable for ultra-low-voltage energy harvesting or supercapacitor backup systems.
Is an external pull-up resistor required for MAX6383XR17D3's RESET pin?
Yes, MAX6383XR17D3 features an open-drain active-low RESET output, which requires an external pull-up resistor to define the logic-high voltage level. Typical values range from 10kΩ to 100kΩ depending on bus capacitance and rise-time requirements; no internal pull-up is integrated.
MAX6383XR17D3 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:
- 1.67V
- 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
MAX6383XR17D3 FAQ
1.How can I place an order for MAX6383XR17D3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6383XR17D3 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 MAX6383XR17D3 reliable?
The price and inventory of MAX6383XR17D3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6383XR17D3 is usually 5 days.
3.What payment methods are accepted for MAX6383XR17D3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6383XR17D3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6383XR17D3?
MAX6383XR17D3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6383XR17D3 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 MAX6383XR17D3?
For technical support, including MAX6383XR17D3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6383XR17D3 requirements.
6.How does Aetrix verify that MAX6383XR17D3 is sourced from the original manufacturer or authorized distributors?
All MAX6383XR17D3 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 MAX6383XR17D3 meets industry standards.
7.What is the process for return or replacement of MAX6383XR17D3?
All MAX6383XR17D3 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6383XR17D3, 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 MAX6383XR17D3 part is unused and in its original packaging.
Return procedure for MAX6383XR17D3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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