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Analog Devices Inc./Maxim Integrated MAX6383XR30D2+T
- Part No.:
- MAX6383XR30D2+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
MAX6383XR30D2+T.pdf
- Description:
- IC MPU/RESET CIRC 3.00V SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,360
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Product details
Overview
MAX6383XR30D2+T from Maxim Integrated is a low-power microprocessor supervisory circuit with open-drain active-low reset output, factory-set 3.00V ±2.5% reset threshold, and 20ms minimum reset timeout period. It monitors VCC from +1.8V to +5.0V while consuming only 3μA at +1.8V, and guarantees valid reset state down to VCC = 1V. It is used in portable battery-powered equipment for reliable power-on reset and brownout protection.
For engineers reviewing the MAX6383XR30D2+T datasheet, MAX6383XR30D2+T pinout, MAX6383XR30D2+T application, or MAX6383XR30D2+T equivalent, key selection criteria include its 3-pin SC70 open-drain configuration, ±2.5% threshold accuracy over -40°C to +125°C, negative-going transient immunity, guaranteed operation down to 1V supply, and compatibility with systems requiring manual reset isolation or dual-voltage monitoring via auxiliary parts.
Technical Context
The MAX6383XR30D2+T implements a precision voltage comparator with internal 3.00V reference and hysteresis-free threshold detection, paired with a temperature-stable monostable timer that enforces a minimum 20ms reset assertion after VCC recovers above threshold. Its open-drain RESET output requires an external pullup resistor and supports wired-OR configurations across multiple supervisors.
Unlike variants with MR or RESET IN inputs, the MAX6383XR30D2+T has no manual reset or auxiliary voltage monitor-its sole function is single-rail VCC supervision. It uses BiCMOS process technology and operates across -40°C to +125°C, with reset threshold tempco of 60ppm/°C and power-down reset delay under 35µs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 3.00V ±2.5% (±75mV) over -40°C to +125°C - ensures reliable reset assertion across automotive and industrial temperature ranges without calibration. |
| Reset Timeout Period | 20ms minimum - provides sufficient hold time for microprocessor initialization before release of reset signal. |
| Supply Current | 3μA at +1.8V - enables multi-year battery life in always-on portable instrumentation and IoT edge nodes. |
| VCC Operating Range | +1.0V to +5.5V - supports operation during deep brownout and compatibility with 1.2V–5V logic domains. |
| RESET Output Type | Open-drain active-low - allows level translation, bus sharing, and flexible pullup selection (e.g., to higher voltage rail). |
| Reset Assertion Delay | 35µs max (VCC falling at 10mV/µs) - rejects sub-microsecond supply glitches without false triggering. |
| Output Sink Capability | 3.2mA at VCC ≥ 4.5V, VOL ≤ 0.4V - drives standard CMOS/TTL reset inputs directly with margin. |
Pinout & Package
MAX6383XR30D2+T is housed in a RoHS-compliant 3-pin SC70 package (outline 21-0075, land pattern 90-0208), measuring 2.0mm × 2.1mm × 0.95mm, with thermal resistance θJA = 340.4°C/W on multilayer board.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RESET (open-drain) | Active-low reset output requiring external pullup; sinks up to 3.2mA; remains valid down to VCC = 1V. |
| 2 | VCC | Main supply input and monitored voltage rail; accepts +1.0V to +5.5V; powers internal comparator and timer. |
| 3 | GND | Analog/digital ground reference; must be low-impedance connection to system ground plane for noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed reset threshold | 3.00V with ±2.5% tolerance over full temperature range - eliminates need for external resistor divider or calibration. |
| Negative-going transient immunity | Rejects VCC glitches <35µs wide at 100mV overdrive - prevents spurious resets in noisy power environments. |
| Ultra-low quiescent current | 3μA at 1.8V - reduces standby power in battery-backed real-time clocks and sensor nodes. |
| Valid reset output down to 1V VCC | Ensures deterministic reset behavior during deep brownout - avoids undefined processor states before shutdown. |
| Open-drain output architecture | Enables shared reset bus with multiple supervisors or mixed-voltage systems via external pullup selection. |
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: Single-rail VCC supervisor ensuring clean reset during battery voltage sag and cold-start conditions. Use Value: 3μA supply current extends battery life beyond 2 years; 20ms timeout satisfies ARM Cortex-M0+ reset timing requirements. |
Use Scenario: DIN-rail mounted analog input module powered by 24VDC converted to 3.3V, subject to field-induced transients. IC Role / Device Role / Timing Role: Primary reset generator for microcontroller and ADC, rejecting fast supply dips from relay switching. Use Value: 35µs glitch rejection prevents false resets; ±2.5% threshold stability maintains accuracy across cabinet temperature swings. |
| Automotive Body Control Units | Smart Energy Meters |
|
Use Scenario: Low-voltage subsystem (e.g., door module) powered from 5V LDO fed by vehicle battery. IC Role / Device Role / Timing Role: AEC-Q100 qualified reset monitor for MCU and CAN transceiver power domain. Use Value: Valid operation to -40°C/+125°C and 3.00V threshold match 3.3V rail tolerance; open-drain output interfaces cleanly with CAN PHY reset logic. |
Use Scenario: Revenue-grade meter with isolated MCU, RTC, and metrology ASIC powered from 3.3V rail. IC Role / Device Role / Timing Role: Supervisory guard for power-up sequencing and brownout recovery in tamper-resistant enclosure. Use Value: Guaranteed reset assertion down to VCC = 1V prevents flash corruption during capacitor hold-up decay; RoHS-compliant SC70 fits tight PCB space. |
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 3-pin SC70, 3.08V threshold (±2%), 140ms timeout - higher threshold and longer timeout than MAX6383XR30D2+T. | Suitable where longer reset hold time is required for slower processors or legacy BIOS compatibility. | Select when 140ms timeout is preferred and 3.08V threshold aligns with 3.3V rail margining. |
| TPS3808G30DBVR | 3-pin SOT-23, 3.0V threshold (±0.5%), 20ms timeout, 1.4μA ICC - tighter threshold accuracy and lower current, but not AEC-Q100 qualified. | Better for ultra-low-power consumer wearables where automotive qualification is unnecessary. | Choose for highest accuracy and lowest current where AEC-Q100 is not mandated. |
Compared with MAX809TRD2+T and TPS3808G30DBVR, the MAX6383XR30D2+T uniquely balances automotive qualification, 3.00V exact threshold, 20ms industry-standard timeout, and proven transient immunity - making it optimal for cost-sensitive industrial and automotive modules requiring validated reliability.
Availability
MAX6383XR30D2+T is available at Aetrix Electronics and suitable for portable/battery-powered equipment, industrial PLC I/O modules, automotive body control units, and smart energy meters requiring stable component supply and long-term lifecycle support.
Supply support for MAX6383XR30D2+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 industrial, automotive, communications, and computing applications, with emphasis on power efficiency and reliability.
The MAX6381–MAX6390 family delivers single/dual low-voltage microprocessor reset circuits optimized for battery longevity, wide temperature operation, and robustness in electrically noisy environments.
FAQ
What is the exact reset threshold voltage of MAX6383XR30D2+T and how tightly is it specified?
The MAX6383XR30D2+T has a factory-set nominal reset threshold of 3.00V, with guaranteed tolerance of ±2.5% over the full operating temperature range (-40°C to +125°C). This means the actual threshold falls between 2.925V and 3.075V at +25°C, and between 2.925V and 3.075V across all temperatures - confirmed in the Electrical Characteristics table under "VCC Reset Threshold" with ΔVTH/°C = 60ppm/°C.
Does MAX6383XR30D2+T include a manual reset input (MR) or auxiliary voltage monitor (RESET IN)?
No, the MAX6383XR30D2+T does not include MR or RESET IN functionality. It is a dedicated single-rail VCC supervisor with open-drain active-low RESET output only. Manual reset capability is present only in MAX6384/MAX6385/MAX6386/MAX6390, and auxiliary monitoring only in MAX6387/MAX6388/MAX6389 - confirmed in the Selector Guide and Pin Description tables.
What package type and pin count does MAX6383XR30D2+T use, and is it RoHS-compliant?
The MAX6383XR30D2+T uses a 3-pin SC70 package (outline 21-0075), with pinout: Pin 1 = RESET (open-drain), Pin 2 = VCC, Pin 3 = GND. The "+T" suffix explicitly denotes lead(Pb)-free/RoHS-compliant packaging per Maxim's ordering information and Package Information section.
Can MAX6383XR30D2+T operate reliably during deep brownout conditions?
Yes, the MAX6383XR30D2+T guarantees correct RESET output logic state down to VCC = 1.0V - meaning it continues asserting reset even as supply collapses, preventing undefined microprocessor behavior. This is specified in both the General Description and Electrical Characteristics sections, and distinguishes it from parts that lose reset validity below ~1.5V.
How does the 20ms reset timeout of MAX6383XR30D2+T compare to other members of the MAX6381–MAX6390 family?
The "D2" suffix in MAX6383XR30D2+T specifies a 20ms minimum reset timeout period - one of seven standardized delays (1ms, 20ms, 140ms, 280ms, 560ms, 1120ms, 1200ms). This value is selected for compatibility with mid-speed microcontrollers requiring moderate initialization time, and is distinct from longer timeouts like D3 (140ms) used in legacy systems or D7 (1200ms) for complex boot sequences.
MAX6383XR30D2+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:
- Active
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 3V
- 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
MAX6383XR30D2+T FAQ
1.How can I place an order for MAX6383XR30D2+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6383XR30D2+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 MAX6383XR30D2+T reliable?
The price and inventory of MAX6383XR30D2+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6383XR30D2+T is usually 5 days.
3.What payment methods are accepted for MAX6383XR30D2+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6383XR30D2+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6383XR30D2+T?
MAX6383XR30D2+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6383XR30D2+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 MAX6383XR30D2+T?
For technical support, including MAX6383XR30D2+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6383XR30D2+T requirements.
6.How does Aetrix verify that MAX6383XR30D2+T is sourced from the original manufacturer or authorized distributors?
All MAX6383XR30D2+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 MAX6383XR30D2+T meets industry standards.
7.What is the process for return or replacement of MAX6383XR30D2+T?
All MAX6383XR30D2+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6383XR30D2+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 MAX6383XR30D2+T part is unused and in its original packaging.
Return procedure for MAX6383XR30D2+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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