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Analog Devices Inc./Maxim Integrated MAX6383XR23D3-T
- Part No.:
- MAX6383XR23D3-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
MAX6383XR23D3-T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:4,854
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Product details
Overview
MAX6383XR23D3-T 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 VCC supply in battery-powered embedded systems where reliable power-on reset and brownout protection are critical.
For engineers reviewing the MAX6383XR23D3-T datasheet, MAX6383XR23D3-T pinout, MAX6383XR23D3-T application, or MAX6383XR23D3-T equivalent, this page delivers verified specifications, SC70-3 package layout, real-world use cases in portable equipment and dual-voltage systems, and two validated alternative parts with documented functional differences.
Technical Context
The MAX6383XR23D3-T implements a precision bandgap-based voltage comparator with ±2.5% threshold accuracy across -40°C to +125°C and guarantees valid reset assertion down to VCC = 1.0V. Its internal timer enforces a fixed 140ms minimum reset timeout after VCC rises above 2.31V.
This variant belongs to the MAX6383 family - open-drain active-low reset, no manual reset input (MR), no auxiliary RESET IN pin - and uses a 3-pin SC70 package with pins assigned as VCC, GND, and RESET (open-drain). It is not pin-compatible with MR-equipped or dual-monitor variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.31V (nominal), ±2.5% tolerance over full temperature range - ensures consistent brownout detection across industrial environments |
| Reset Timeout | 140ms (minimum) - holds μP in reset long enough for power rails and clocks to stabilize post-brownout |
| Supply Current | 3μA at +1.8V - enables multi-year operation in coin-cell–powered IoT sensors without compromising supervision integrity |
| Operating Voltage | 1.0V to 5.5V - supports valid reset signaling even during deep brownout, down to near-dead-battery conditions |
| Output Type | Open-drain active-low - requires external pullup; allows wired-OR reset bus sharing across multiple supervisors or logic domains |
| Temperature Range | -40°C to +125°C - qualified for under-hood automotive modules and industrial control cabinets |
| VCC Transient Immunity | Rejects negative-going VCC glitches ≤35µs at 100mV overdrive - prevents spurious resets in electrically noisy environments |
Pinout & Package
MAX6383XR23D3-T is housed in a 3-pin SC70 package (outline 21-0075, land pattern 90-0208), measuring 2.0mm × 2.1mm × 0.95mm. The compact footprint supports high-density PCB layouts in space-constrained portable designs.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCC | Main supply input and monitored rail; powers internal circuitry and serves as reference for reset threshold detection |
| 2 | GND | Analog and digital ground reference; must be connected directly to system ground plane for stable comparator operation |
| 3 | RESET | Open-drain active-low output; sinks current when asserted; requires external pullup resistor to define logic-high level and bus voltage |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed reset threshold | 2.31V with ±2.5% accuracy over -40°C to +125°C - eliminates need for external resistor dividers or calibration in production |
| Ultra-low quiescent current | 3μA at +1.8V - extends battery life in always-on monitoring applications without sacrificing supervision reliability |
| Guaranteed reset validity | Operates correctly down to VCC = 1.0V - ensures deterministic reset state during severe undervoltage events |
| Open-drain output architecture | Enables shared reset bus with multiple devices and flexible voltage-level translation via external pullup |
| Negative transient immunity | Withstands VCC glitches up to 35µs duration at 100mV overdrive - suppresses false triggers from switching noise or ESD coupling |
Applications
| Portable Medical Sensors | Battery-Powered Data Loggers |
|---|---|
Use Scenario: Wearable ECG patch operating on CR2032 coin cell with intermittent BLE transmission. IC Role / Device Role / Timing Role: Monitors VCC during cold-start and battery sag; asserts open-drain RESET to hold MCU until regulated 3.3V rail stabilizes. Use Value: 3μA supply current extends operational life beyond 2 years; 2.31V threshold aligns precisely with LiMnO₂ discharge curve end-of-life voltage. |
Use Scenario: Environmental sensor node deployed in remote field locations, powered by solar-charged Li-ion battery. IC Role / Device Role / Timing Role: Detects brownout during dawn/dusk low-light charging gaps; forces controlled MCU reboot via 140ms reset pulse. Use Value: 140ms timeout exceeds typical LDO startup delay; ±2.5% threshold stability prevents premature resets across -25°C to +60°C ambient swings. |
| Industrial PLC I/O Modules | Dual-Voltage Microcontroller Systems |
Use Scenario: DIN-rail mounted I/O expansion module with isolated 5V and 3.3V domains, subject to 24V DC bus transients. IC Role / Device Role / Timing Role: Supervises 3.3V logic rail; open-drain RESET interfaces directly with optocoupled reset input of main controller. Use Value: Negative transient immunity rejects 24V bus noise coupled into 3.3V domain; -40°C to +125°C rating matches industrial enclosure thermal profile. |
Use Scenario: FPGA-based edge AI accelerator board using separate 1.2V core and 3.3V I/O supplies. IC Role / Device Role / Timing Role: Dedicated supervisor for 3.3V I/O rail only; RESET signal coordinated with core-rail supervisor via external OR-ing diode. Use Value: Open-drain output enables safe wired-OR with other reset sources; 2.31V threshold avoids false trips during 3.3V rail ripple (<±50mV). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6383XR23D3+T | Same electrical specs and SC70-3 package; RoHS-compliant but non-automotive grade (no AEC-Q100 qualification) | Not qualified for automotive under-hood use; suitable for commercial/industrial applications with standard reliability requirements | Select when AEC-Q100 is not required and cost sensitivity favors standard-grade stock |
| TLV803EB23DBZR | 2.32V threshold, 140ms timeout, SOT-23-3 package; higher 6μA ICC at +1.8V; ±3% threshold accuracy over -40°C to +125°C | Larger footprint (2.92mm × 1.6mm vs. 2.0mm × 2.1mm); less accurate threshold may cause marginal brownout detection in tight-margin designs | Choose for TI-sourced BOMs or where SOT-23 footprint compatibility is prioritized over ultra-low ICC |
Compared with MAX6383XR23D3-T, the MAX6383XR23D3+T offers identical performance without automotive qualification, while TLV803EB23DBZR trades 3μA ultra-low current and tighter threshold accuracy for broader distributor availability and TI ecosystem alignment - critical when supply chain resilience outweighs milliamp-level power savings.
Availability
MAX6383XR23D3-T is available at Aetrix Electronics and suitable for portable medical sensors, battery-powered data loggers, industrial PLC I/O modules, and dual-voltage microcontroller systems requiring stable component supply with guaranteed AEC-Q100 compliance.
Supply support for MAX6383XR23D3-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, with emphasis on low-power, high-reliability solutions.
The MAX6381–MAX6390 family delivers single/dual-supply microprocessor supervisors optimized for ultra-low ICC, wide temperature operation, and robust transient immunity - targeting battery longevity and functional safety in mission-critical embedded systems.
FAQ
What is the exact reset threshold voltage of MAX6383XR23D3-T and how stable is it over temperature?
The MAX6383XR23D3-T has a factory-set nominal reset threshold of 2.31V, with guaranteed ±2.5% tolerance over the full -40°C to +125°C operating range. This corresponds to a min/max range of 2.25V to 2.37V at temperature extremes, ensuring reliable brownout detection without external trimming. The device's 60ppm/°C tempco contributes to this tight specification.
Does MAX6383XR23D3-T include a manual reset input (MR) or auxiliary RESET IN pin?
No, MAX6383XR23D3-T does not include a manual reset input (MR) or auxiliary RESET IN pin. It is a single-supply, open-drain active-low reset supervisor with only VCC, GND, and RESET terminals. MR is present only on MAX6384/MAX6385/MAX6386/MAX6390; RESET IN is exclusive to MAX6387/MAX6388/MAX6389.
What package type and dimensions does MAX6383XR23D3-T use?
MAX6383XR23D3-T uses a 3-pin SC70 package (outline number 21-0075), measuring 2.0mm × 2.1mm × 0.95mm with a 0.65mm pin pitch. Its land pattern is specified as 90-0208, and it is RoHS-compliant and AEC-Q100 qualified for automotive applications.
How does the open-drain RESET output of MAX6383XR23D3-T function in system design?
The open-drain RESET output of MAX6383XR23D3-T requires an external pullup resistor to define the logic-high voltage level. When asserted (low), it sinks up to 3.2mA at VCC ≥ 4.5V. This architecture enables wired-OR connection with other reset sources and supports mixed-voltage systems - for example, pulling up to 5V while supervising a 3.3V rail.
Is MAX6383XR23D3-T pin-compatible with older Maxim reset ICs like MAX809?
Yes, MAX6383XR23D3-T is pin-compatible with MAX809/MAX810/MAX803 and other listed legacy parts in the same 3-pin SC70 package. Electrical behavior is functionally equivalent, including open-drain active-low output and compatible timing - enabling drop-in replacement in existing designs without PCB modification.
MAX6383XR23D3-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-3
MAX6383XR23D3-T FAQ
1.How can I place an order for MAX6383XR23D3-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6383XR23D3-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 MAX6383XR23D3-T reliable?
The price and inventory of MAX6383XR23D3-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6383XR23D3-T is usually 5 days.
3.What payment methods are accepted for MAX6383XR23D3-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6383XR23D3-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6383XR23D3-T?
MAX6383XR23D3-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6383XR23D3-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 MAX6383XR23D3-T?
For technical support, including MAX6383XR23D3-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6383XR23D3-T requirements.
6.How does Aetrix verify that MAX6383XR23D3-T is sourced from the original manufacturer or authorized distributors?
All MAX6383XR23D3-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 MAX6383XR23D3-T meets industry standards.
7.What is the process for return or replacement of MAX6383XR23D3-T?
All MAX6383XR23D3-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6383XR23D3-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 MAX6383XR23D3-T part is unused and in its original packaging.
Return procedure for MAX6383XR23D3-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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