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Analog Devices Inc./Maxim Integrated MAX6383LT41D3+T
- Part No.:
- MAX6383LT41D3+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 6-WFDFN
- Datasheet:
-
MAX6383LT41D3+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 6UDFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,841
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Product details
Overview
MAX6383LT41D3+T from Maxim Integrated is a low-power microprocessor supervisory circuit with open-drain active-low reset output, factory-set 4.10V reset threshold (±2.5% over -40°C to +125°C), 140ms minimum reset timeout, and guaranteed operation down to VCC = 1.0V. It monitors single-supply rails in battery-powered systems and embedded controllers where reliable power-up sequencing and brownout protection are critical.
For engineers reviewing the MAX6383LT41D3+T datasheet, MAX6383LT41D3+T pinout, MAX6383LT41D3+T application, or MAX6383LT41D3+T equivalent, key selection criteria include its open-drain reset architecture requiring external pullup, 3μA supply current at 1.8V, ±2.5% threshold accuracy across automotive temperature range, and compatibility with dual-voltage monitoring systems via auxiliary reset input variants.
Technical Context
The MAX6383LT41D3+T implements a precision bandgap-based voltage comparator with internal 4.10V threshold reference and an on-chip timer that enforces a minimum 140ms reset assertion after VCC recovers above threshold. Its open-drain output supports wired-OR configurations and level-shifting across mixed-voltage domains.
Unlike push-pull variants, this device requires an external pullup resistor on RESET to define high-state logic level and drive strength; it guarantees valid output state for VCC ≥ 1.0V but does not support manual reset (MR) or auxiliary RESET IN inputs-features reserved for other family members like MAX6384 or MAX6387.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 4.10V nominal, ±2.5% over -40°C to +125°C - ensures stable trip point across automotive temperature range without external calibration |
| Reset Timeout | 140ms minimum - provides sufficient hold time for slow-ramping microcontrollers during power-up |
| Supply Current | 3μA at +1.8V - enables multi-year battery life in portable equipment with infrequent wake cycles |
| Operating Voltage | 1.0V to 5.5V - supports valid reset assertion even during deep brownout conditions before system collapse |
| Output Type | Open-drain active-low - allows shared reset bus with multiple devices and interface to higher-voltage logic domains |
| Reset Output VOL | 0.3V at 80μA sink, VCC ≥ 1.0V - guarantees clean low-level signal under ultra-low-power operating conditions |
| Package | 6-pin μDFN (2mm × 2mm, 0.5mm pitch) - compact footprint for space-constrained PCB layouts in handheld and IoT devices |
Pinout & Package
MAX6383LT41D3+T is housed in a 6-pin μDFN package (Outline Number 21-0147, Land Pattern 90-0080) with exposed pad for thermal enhancement. Pin 1 is RESET (open-drain active-low), Pin 4 is VCC, Pin 6 is GND; Pins 2, 3, and 5 are no-connect (N.C.) and must remain unconnected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RESET | Open-drain active-low reset output - requires external pullup resistor; asserts low when VCC < 4.10V or during power-down |
| 2 | N.C. | No connection - internally unconnected; must be left floating or tied to GND per layout best practice |
| 3 | N.C. | No connection - internally unconnected; no electrical function or thermal benefit |
| 4 | VCC | Main supply input and monitored voltage rail - powers internal circuitry and serves as primary reset trigger source |
| 5 | N.C. | No connection - internally unconnected; avoid routing traces or vias to this pin |
| 6 | GND | Analog/digital ground reference - must be connected to low-impedance system ground plane for noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed 4.10V threshold | Eliminates need for external resistor dividers or calibration; reduces BOM count and layout area |
| 140ms reset timeout | Matches typical boot-time requirements of ARM Cortex-M0/M3 and RISC-V microcontrollers |
| 3μA supply current at 1.8V | Enables integration into always-on sensor nodes without compromising battery service life |
| Valid operation down to VCC = 1.0V | Ensures deterministic reset behavior during severe undervoltage events before system lockup |
| Open-drain output architecture | Supports multi-drop reset buses and voltage-level translation between 1.8V/3.3V/5V subsystems |
Applications
| Portable Power Management | Industrial Controller Monitoring |
|---|---|
Use Scenario: Battery-powered handheld test instrument with Li-ion cell and 3.3V/1.8V dual-rail PMIC. IC Role / Device Role / Timing Role: Primary supervisor for main 3.3V domain; asserts reset if battery voltage drops below 4.10V during discharge or cold-temperature operation. Use Value: Prevents firmware corruption by holding MCU in reset until stable 3.3V rail is re-established post-brownout. | Use Scenario: Programmable logic controller (PLC) I/O module with isolated 24V-to-3.3V DC-DC converter. IC Role / Device Role / Timing Role: Monitors 3.3V logic supply derived from industrial-grade converter; provides 140ms reset pulse to ensure FPGA configuration integrity after power interruption. Use Value: Guarantees safe restart sequence without requiring external timing components or microcontroller intervention. |
| Medical Wearable Boot Integrity | Automotive Body Control Module |
Use Scenario: ECG patch with ultra-low-power BLE SoC and coin-cell battery. IC Role / Device Role / Timing Role: Supervises 1.8V core voltage of BLE radio; triggers reset if supply sags due to RF transmit current surge or battery aging. Use Value: Maintains data logging continuity by preventing partial firmware execution during transient undervoltage. | Use Scenario: Door module with LIN transceiver and 5V microcontroller powered from vehicle battery. IC Role / Device Role / Timing Role: Monitors 5V rail derived from automotive DC-DC; asserts reset during engine cranking when battery dips below 4.10V. Use Value: Meets AEC-Q100 Class 0 requirements for reset reliability across -40°C to +125°C ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6383XR41D3+T | Same electrical specs but in 3-pin SC70 package (2.05mm × 2.05mm); no N.C. pins; smaller footprint but lower thermal mass | Limited to space-constrained designs where μDFN assembly is impractical; less suitable for high-reliability thermal cycling environments | Select XR variant only when board area is critical and thermal derating margin is verified |
| TLV803EB41DBZR | 4.10V threshold, 140ms timeout, open-drain output, but 1.6V–6.0V operating range and 0.5μA typical ICC at 1.8V | Better suited for sub-1.8V systems (e.g., 1.2V logic rails); lacks AEC-Q100 qualification and automotive temp range guarantee | Choose TLV803EB41DBZR for cost-sensitive consumer applications below +105°C ambient |
Compared with MAX6383XR41D3+T, the LT41D3+T offers superior thermal performance and mechanical robustness in μDFN; versus TLV803EB41DBZR, it delivers guaranteed automotive-grade reliability and tighter threshold accuracy over full temperature range, at the cost of higher quiescent current.
Availability
MAX6383LT41D3+T is available at Aetrix Electronics and suitable for portable/battery-powered equipment, industrial controllers, medical wearables, and automotive body electronics requiring stable component supply with long lifecycle support.
Supply support for MAX6383LT41D3+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.
The MAX6381–MAX6390 family delivers low-power, high-accuracy voltage supervision for microprocessor-based systems where deterministic reset behavior under brownout and transient conditions is essential.
FAQ
What is the exact reset threshold voltage of MAX6383LT41D3+T and how tightly is it specified?
The MAX6383LT41D3+T has a factory-set nominal reset threshold of 4.10V, with guaranteed tolerance of ±2.5% over the full operating temperature range of -40°C to +125°C. This specification is confirmed in the Electrical Characteristics table of the official datasheet, where VTH min = 4.00V and max = 4.20V at +25°C, and ±2.5% applies across temperature. The "41" suffix in the part number directly encodes this 4.10V threshold.
Does MAX6383LT41D3+T support manual reset functionality?
No, MAX6383LT41D3+T does not include a manual reset (MR) input. According to the Selector Guide and Pin Description sections, MR is only present on MAX6384/MAX6385/MAX6386/MAX6390 variants. The MAX6383LT41D3+T is a dedicated single-supply supervisor with open-drain reset output and no MR or RESET IN pins - its pinout confirms Pins 2, 3, and 5 as N.C.
What package type and dimensions does MAX6383LT41D3+T use?
MAX6383LT41D3+T uses a 6-pin μDFN package (Outline Number 21-0147) measuring 2.0mm × 2.0mm with 0.5mm pin pitch and an exposed thermal pad. The land pattern is documented as 90-0080, and thermal resistance is θJA = 477°C/W on a multilayer board. This package is RoHS-compliant and marked with "+T" indicating lead-free finish.
Can MAX6383LT41D3+T monitor a second voltage rail?
No, MAX6383LT41D3+T cannot monitor a second voltage rail. Auxiliary RESET IN functionality is exclusive to MAX6387/MAX6388/MAX6389 variants, as clearly indicated in the Selector Guide and Pin Configurations. The MAX6383LT41D3+T has only VCC and RESET pins active; all other terminals are N.C., confirming single-rail supervision capability only.
Is MAX6383LT41D3+T qualified for automotive applications?
MAX6383LT41D3+T is not explicitly AEC-Q100 qualified - the datasheet states "AEC-Q100 Qualified, Refer to Ordering Information for the Specific /V Trim Version", and the "/V" suffix (e.g., MAX6383LT41D3/V+T) denotes automotive qualification. The "+T" suffix indicates RoHS compliance only. Therefore, MAX6383LT41D3+T is rated for -40°C to +125°C operation but lacks formal automotive qualification documentation unless ordered with /V.
MAX6383LT41D3+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 6-WFDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 4.1V
- 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:
- 6-µDFN (1.5x1)
MAX6383LT41D3+T FAQ
1.How can I place an order for MAX6383LT41D3+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6383LT41D3+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 MAX6383LT41D3+T reliable?
The price and inventory of MAX6383LT41D3+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6383LT41D3+T is usually 5 days.
3.What payment methods are accepted for MAX6383LT41D3+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6383LT41D3+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6383LT41D3+T?
MAX6383LT41D3+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6383LT41D3+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 MAX6383LT41D3+T?
For technical support, including MAX6383LT41D3+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6383LT41D3+T requirements.
6.How does Aetrix verify that MAX6383LT41D3+T is sourced from the original manufacturer or authorized distributors?
All MAX6383LT41D3+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 MAX6383LT41D3+T meets industry standards.
7.What is the process for return or replacement of MAX6383LT41D3+T?
All MAX6383LT41D3+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6383LT41D3+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 MAX6383LT41D3+T part is unused and in its original packaging.
Return procedure for MAX6383LT41D3+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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