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Analog Devices Inc./Maxim Integrated MAX6383XR24D2
- Part No.:
- MAX6383XR24D2
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
MAX6383XR24D2.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:1,590
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Product details
Overview
MAX6383XR24D2 from Maxim Integrated is a low-power microprocessor supervisory circuit with open-drain active-low reset output, factory-set 2.40V reset threshold (±2.5% over -40°C to +125°C), and 20ms minimum reset timeout. It monitors VCC from +1.8V to +5.0V while drawing only 3µA at +1.8V, and guarantees valid reset state down to VCC = 1V. Used in portable battery-powered equipment for reliable power-on reset sequencing.
For engineers reviewing the MAX6383XR24D2 datasheet, MAX6383XR24D2 pinout, MAX6383XR24D2 application, or MAX6383XR24D2 equivalent, key selection criteria include its 2.40V threshold accuracy, 20ms timeout, SC70-3 package footprint, open-drain output requiring external pull-up, and guaranteed operation down to VCC = 1V.
Technical Context
The MAX6383XR24D2 implements a precision bandgap-based voltage comparator with ±2.5% threshold accuracy across -40°C to +125°C and 60ppm/°C tempco. Its internal timer generates a fixed 20ms minimum reset assertion period after VCC rises above 2.40V.
As part of the MAX6381–MAX6390 family, it uses BiCMOS process technology (647 transistors) and features negative-going VCC transient immunity-rejecting glitches up to ~35µs when overdrive is 100mV-without asserting spurious resets.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.40V nominal, ±2.5% over -40°C to +125°C - ensures accurate brownout detection across industrial temperature range |
| Reset Timeout | 20ms minimum - provides sufficient hold time for µP initialization before release |
| 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 reset bus configuration and level translation via external pull-up |
| VCC Validity Range | Reset output guaranteed valid down to VCC = 1.0V - prevents metastability during power collapse |
| Tempco | 60ppm/°C - limits threshold drift to <±15mV over full temperature range |
Pinout & Package
MAX6383XR24D2 is housed in a 3-pin SC70-3 package (package code X3-2), measuring 2.0mm × 2.1mm × 0.95mm, with lead-free (RoHS-compliant) finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for internal comparators and timer; must be low-impedance connection to system ground plane |
| 2 | RESET | Open-drain active-low reset output; requires external pull-up resistor (typically 10kΩ–100kΩ) to host supply rail |
| 3 | VCC | Primary supply input and monitored voltage source; powers internal circuitry and sets fixed reset threshold |
Key Features
| Feature | Design Value |
|---|---|
| Factory-set 2.40V threshold | Eliminates external resistor divider; reduces BOM count and layout area in space-constrained designs |
| 20ms reset timeout | Matches typical µP power-up stabilization time; avoids premature release before internal clocks stabilize |
| 3µA supply current at 1.8V | Enables integration into ultra-low-power IoT sensors without compromising battery lifetime |
| Guaranteed reset validity to VCC = 1.0V | Ensures deterministic reset assertion during deep undervoltage events, preventing runaway states |
| Negative-going transient immunity | Rejects sub-40µs VCC glitches up to 100mV overdrive - improves noise robustness in electrically noisy environments |
Applications
| Portable Medical Sensors | Industrial PLC I/O Modules |
|---|---|
Use Scenario: Wearable ECG sensor operating from coin-cell battery with intermittent BLE transmission. IC Role / Device Role / Timing Role: Supervises 1.8V LDO output to ensure clean µC reset on cold start and brownout recovery. Use Value: 3µA quiescent current extends battery life beyond 3 years; 20ms timeout aligns with MSP430F5xx startup sequence. | Use Scenario: DIN-rail mounted analog input module exposed to 24VDC supply ripple and EFT bursts. IC Role / Device Role / Timing Role: Monitors 3.3V system rail and asserts open-drain reset to ARM Cortex-M4 core during line sags. Use Value: ±2.5% threshold accuracy prevents false resets under 100mV ripple; transient immunity rejects 40µs EFT pulses. |
| Automotive Body Control Units | Smart Energy Meters |
Use Scenario: Low-voltage wake-up circuit in BCM that must survive load-dump and cold-crank conditions. IC Role / Device Role / Timing Role: Resets microcontroller when 5V supply drops below 2.40V during cranking, with guaranteed validity down to 1.0V. Use Value: Operation to VCC = 1.0V ensures reset remains asserted through worst-case cranking sag; SC70-3 footprint saves PCB area. | Use Scenario: Revenue-grade meter with dual-supply architecture (3.3V MCU + 1.2V RTC), requiring independent reset timing. IC Role / Device Role / Timing Role: Provides dedicated 2.40V reset for 3.3V domain while enabling synchronized power-up with RTC supervisor. Use Value: Open-drain output allows shared reset bus with RTC supervisor; 2.40V threshold matches 3.3V LDO dropout margin. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX809TRD2+T | Same 2.40V threshold and SC70-3 package, but push-pull active-low output and higher 12µA ICC at 1.8V | Lacks open-drain flexibility; requires no external pull-up but cannot share reset bus | Select when board-level reset bus wiring is absent and lowest possible BOM cost is prioritized |
| TPS3808G125DBVR | 2.42V threshold, 20ms timeout, SOT-23-5 package; includes manual reset input and 1.5µA ICC at 1.8V | 5-pin layout increases footprint; MR pin adds design complexity but enables user-initiated reset | Select when manual reset functionality is required and additional PCB area is available |
Compared with MAX809TRD2+T and TPS3808G125DBVR, MAX6383XR24D2 uniquely combines ultra-low 3µA supply current, open-drain output, and minimal 3-pin SC70 footprint-making it optimal for space- and power-constrained embedded systems where reset bus sharing is needed.
Availability
MAX6383XR24D2 is available at Aetrix Electronics and suitable for portable medical sensors, industrial PLC I/O modules, automotive body control units, and smart energy meters requiring stable component supply and long-term production continuity.
Supply support for MAX6383XR24D2 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 industrial, automotive, and computing applications, with emphasis on low-power, high-reliability performance.
The MAX6381–MAX6390 product line delivers single/dual low-voltage microprocessor supervisory circuits optimized for battery-powered and thermally demanding environments, featuring factory-trimmed thresholds and nanoscale BiCMOS process efficiency.
FAQ
What is the exact reset threshold voltage of the MAX6383XR24D2?
The MAX6383XR24D2 has a factory-set nominal reset threshold of 2.40V, with guaranteed tolerance of ±2.5% over the full operating temperature range (-40°C to +125°C). This corresponds to a min/max range of 2.34V to 2.46V at +25°C, tightening to 2.34V–2.46V across temperature per datasheet specifications.
Does the MAX6383XR24D2 support manual reset functionality?
No, the MAX6383XR24D2 does not include a manual reset (MR) input. It is a basic single-supply supervisory device with only VCC, GND, and open-drain RESET pins. Manual reset capability is present only in selected variants like MAX6384–MAX6386 and MAX6390, which feature a dedicated MR pin and internal pull-up resistor.
What package type and dimensions does the MAX6383XR24D2 use?
The MAX6383XR24D2 uses a 3-pin SC70-3 package (package code X3-2), with outline dimensions of 2.0mm × 2.1mm × 0.95mm and a lead-free RoHS-compliant finish. Pin 1 is GND, Pin 2 is open-drain RESET, and Pin 3 is VCC - confirmed by Maxim's official package drawings and ordering information.
Can the MAX6383XR24D2 operate reliably during severe VCC sags?
Yes, the MAX6383XR24D2 guarantees correct reset output logic state down to VCC = 1.0V, ensuring deterministic assertion even during deep brownout events. Its internal comparator and timer remain functional across the full 1.0V–5.5V operating range, and it exhibits immunity to negative-going VCC transients up to ~35µs at 100mV overdrive.
Is an external pull-up resistor required for the MAX6383XR24D2 RESET pin?
Yes, an external pull-up resistor is mandatory for the MAX6383XR24D2 RESET pin because it features an open-drain active-low output. A typical value is 10kΩ to 100kΩ connected between RESET and the host supply rail (e.g., 3.3V or 5V). Without this resistor, the RESET signal cannot achieve a valid high-impedance or logic-high state.
MAX6383XR24D2 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:
- 2.4V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 20ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-3
MAX6383XR24D2 FAQ
1.How can I place an order for MAX6383XR24D2 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6383XR24D2 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 MAX6383XR24D2 reliable?
The price and inventory of MAX6383XR24D2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6383XR24D2 is usually 5 days.
3.What payment methods are accepted for MAX6383XR24D2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6383XR24D2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6383XR24D2?
MAX6383XR24D2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6383XR24D2 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 MAX6383XR24D2?
For technical support, including MAX6383XR24D2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6383XR24D2 requirements.
6.How does Aetrix verify that MAX6383XR24D2 is sourced from the original manufacturer or authorized distributors?
All MAX6383XR24D2 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 MAX6383XR24D2 meets industry standards.
7.What is the process for return or replacement of MAX6383XR24D2?
All MAX6383XR24D2 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6383XR24D2, 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 MAX6383XR24D2 part is unused and in its original packaging.
Return procedure for MAX6383XR24D2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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