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Analog Devices Inc./Maxim Integrated MAX6383XR23D3+
- Part No.:
- MAX6383XR23D3+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
MAX6383XR23D3+.pdf
- Description:
- MAX6383 SC70, SINGLE LOW-VOLTAGE
- Quantity:
- Payment:
- Shipping:
Inventory:14,894
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Product details
Overview
MAX6383XR23D3+ from Maxim Integrated is a low-power microprocessor supervisory circuit with open-drain active-low reset output, factory-set 2.31V 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 portable/battery-powered equipment and ensures reliable µP initialization during brownout or power-up.
For engineers reviewing the MAX6383XR23D3+ datasheet, MAX6383XR23D3+ pinout, MAX6383XR23D3+ application, or MAX6383XR23D3+ equivalent, key selection criteria include reset threshold accuracy, ultra-low ICC, open-drain output compatibility with mixed-voltage systems, and SC70-3 package footprint constraints.
Technical Context
The MAX6383XR23D3+ implements a precision bandgap-based reset comparator with 60ppm/°C tempco and guarantees valid reset assertion down to VCC = 1.0V. Its internal timer provides fixed 140ms reset timeout after VCC rises above threshold, independent of temperature or supply variation.
As a member of the MAX6381–MAX6390 family, it shares BiCMOS process technology (647 transistors) and negative-going VCC transient immunity-rejecting glitches ≤35µs at 100mV overdrive-without requiring external debounce components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.31V nominal (2.26V min / 2.37V max), ±2.5% over full temperature range |
| Reset Timeout | 140ms minimum - ensures µP remains held in reset long enough for stable clock and supply settling |
| Supply Current | 3µA at +1.8V - enables multi-year battery life in always-on monitoring applications |
| Operating Voltage | 1.0V to 5.5V - supports operation during deep brownout and compatibility with 1.2V–5V logic domains |
| Output Type | Open-drain active-low - allows wired-OR configuration and level-shifting across voltage domains |
| Temp Range | -40°C to +125°C - qualified for automotive under-hood and industrial control environments |
| Reset Propagation | 35µs max VCC-to-reset delay - fast response to supply collapse without false triggering on noise |
Pinout & Package
MAX6383XR23D3+ uses the 3-pin SC70-3 package (X3-2 pkg code), 1.25mm × 0.85mm × 0.55mm body, lead-free, RoHS-compliant.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RESET (open-drain) | Active-low reset signal; requires external pullup; sinks 80µA @ VCC ≥1.0V with VOL ≤0.3V |
| 2 | VCC | Primary supply input and monitored voltage rail; accepts 1.0V–5.5V |
| 3 | GND | Analog/digital ground reference; must be low-impedance for accurate threshold sensing |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed reset threshold | Eliminates external resistor divider calibration and reduces BOM count in space-constrained designs |
| Guaranteed operation down to VCC = 1.0V | Ensures deterministic reset behavior during deep undervoltage events before system shutdown |
| Negative-going transient immunity | Rejects VCC glitches ≤35µs duration (at 100mV overdrive), reducing need for bulk capacitance |
| Ultra-low 3µA supply current | Enables integration into energy-harvesting and coin-cell-powered IoT endpoints |
| SC70-3 footprint | Provides smallest available package in family-ideal for wearables and miniaturized medical sensors |
Applications
| Battery-Powered Portable Devices | Industrial Sensor Nodes |
|---|---|
Use Scenario: Coin-cell-powered environmental sensor logging temperature/humidity every 5 minutes. IC Role / Device Role / Timing Role: Supervises VCC from aging alkaline cell; asserts reset if voltage drops below 2.31V to prevent corrupted flash writes. Use Value: 3µA quiescent current extends battery life beyond 5 years; 140ms timeout prevents premature µP wake-up before LDO stabilization. | Use Scenario: DIN-rail mounted PLC I/O module operating in -40°C to +85°C ambient. IC Role / Device Role / Timing Role: Monitors 3.3V logic supply; holds ARM Cortex-M4 in reset during cold-start until rails settle. Use Value: ±2.5% threshold accuracy over full temp range avoids spurious resets; SC70-3 withstands reflow and vibration. |
| Automotive Body Control Modules | Medical Wearable Patches |
Use Scenario: 12V-to-3.3V converted supply in door module subjected to load-dump transients. IC Role / Device Role / Timing Role: Detects brownout on 3.3V rail; open-drain RESET interfaces directly to 5V-safe µP reset pin via pullup. Use Value: 35µs glitch rejection suppresses false resets from alternator ripple; -40°C to +125°C rating covers under-hood placement. | Use Scenario: Disposable ECG patch powered by thin-film battery with gradual voltage decay. IC Role / Device Role / Timing Role: Triggers controlled shutdown when battery reaches end-of-life at 2.31V. Use Value: Guaranteed reset assertion down to VCC = 1.0V ensures safe state capture before power loss; 1.25mm × 0.85mm SC70-3 fits sub-10mm² PCB area budget. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar µP reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX809TRD3+T | Same 2.31V threshold and SC70-3 package; 140ms timeout; push-pull active-low output (not open-drain) | Requires dedicated reset net; incompatible with wired-OR or level-shifted reset buses | Select when system uses single µP with no shared reset bus and needs lower output impedance |
| TPS3808G33DBVR | 2.33V threshold, 200ms timeout, SOT-23-5 package; 1.8µA ICC at 1.8V; adjustable delay via capacitor | Larger footprint; longer timeout may delay system recovery; capacitor-based timing adds component | Select when design requires programmable timeout or tighter 1.5% threshold tolerance (±1.5% vs ±2.5%) |
Compared with MAX809TRD3+T and TPS3808G33DBVR, MAX6383XR23D3+ uniquely combines open-drain output, SC70-3 size, and guaranteed 1.0V operation-critical for multi-rail systems where reset coordination across voltage domains is required without additional logic.
Availability
MAX6383XR23D3+ is available at Aetrix Electronics and suitable for battery-powered portable devices, industrial sensor nodes, automotive body control modules, and medical wearable patches requiring stable component supply and long-term lifecycle support.
Supply support for MAX6383XR23D3+ 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 product line delivers ultra-low-power, high-accuracy supervisory circuits optimized for space-constrained, battery-sensitive systems requiring robust reset functionality across extended temperature ranges.
FAQ
What is the exact reset threshold voltage of MAX6383XR23D3+ and how stable is it over temperature?
The MAX6383XR23D3+ has a factory-set nominal reset threshold of 2.31V, with guaranteed limits of 2.26V (min) and 2.37V (max) over -40°C to +125°C. Its ±2.5% accuracy and 60ppm/°C tempco ensure minimal drift across operating conditions-critical for systems where marginal supply margins exist.
Does MAX6383XR23D3+ support manual reset functionality?
No, MAX6383XR23D3+ does not include a manual reset (MR) input. It belongs to the MAX6381/MAX6382/MAX6383 subgroup, which lacks MR pins. For manual reset capability, consider MAX6384XR23D3+ or MAX6390XR23D3+, both pin-compatible but with added MR functionality.
What package type and dimensions does MAX6383XR23D3+ use?
MAX6383XR23D3+ uses the 3-pin SC70-3 package (pkg code X3-2), measuring 1.25mm × 0.85mm × 0.55mm with 0.65mm pitch. It is lead-free and RoHS-compliant, designed for high-density PCB layouts in portable and wearable electronics.
Can MAX6383XR23D3+ operate reliably at VCC = 1.0V?
Yes, MAX6383XR23D3+ guarantees correct reset output logic state down to VCC = 1.0V. This ensures deterministic behavior during deep brownout conditions-unlike many supervisory ICs that fail or float below 1.5V-making it suitable for ultra-low-voltage energy harvesting systems.
Is MAX6383XR23D3+ pin-compatible with legacy Maxim reset ICs like MAX809?
MAX6383XR23D3+ shares the same SC70-3 footprint and pinout (RESET/VCC/GND) with MAX809 series, enabling drop-in replacement in many designs. However, MAX6383XR23D3+ uses open-drain output while MAX809 uses push-pull-requiring verification of pullup presence and reset bus topology before substitution.
MAX6383XR23D3+ 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:
- 2.31V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-3
MAX6383XR23D3+ FAQ
1.How can I place an order for MAX6383XR23D3+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6383XR23D3+ 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 MAX6383XR23D3+ reliable?
The price and inventory of MAX6383XR23D3+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6383XR23D3+ is usually 5 days.
3.What payment methods are accepted for MAX6383XR23D3+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6383XR23D3+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6383XR23D3+?
MAX6383XR23D3+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6383XR23D3+ 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 MAX6383XR23D3+?
For technical support, including MAX6383XR23D3+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6383XR23D3+ requirements.
6.How does Aetrix verify that MAX6383XR23D3+ is sourced from the original manufacturer or authorized distributors?
All MAX6383XR23D3+ 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 MAX6383XR23D3+ meets industry standards.
7.What is the process for return or replacement of MAX6383XR23D3+?
All MAX6383XR23D3+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6383XR23D3+, 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 MAX6383XR23D3+ part is unused and in its original packaging.
Return procedure for MAX6383XR23D3+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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