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Analog Devices Inc./Maxim Integrated MAX6383LT16D1+T
- Part No.:
- MAX6383LT16D1+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 6-WFDFN
- Datasheet:
-
MAX6383LT16D1+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 6UDFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,447
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Product details
Overview
MAX6383LT16D1+T from Maxim Integrated is a low-power microprocessor supervisory circuit with open-drain active-low reset output, factory-set 1.58V reset threshold (±2.5% over −40°C to +125°C), 140ms minimum reset timeout, and operation down to VCC = 1.0V. It monitors single-supply rails in battery-powered embedded systems, ensuring reliable power-on reset and brownout protection for critical µP-based controllers.
For engineers reviewing the MAX6383LT16D1+T datasheet, MAX6383LT16D1+T pinout, MAX6383LT16D1+T application, or MAX6383LT16D1+T equivalent, key selection factors include its 1.58V threshold accuracy, 3µA supply current at 1.8V, open-drain output requiring external pull-up, 6-pin µDFN package, and guaranteed reset validity down to VCC = 1V.
Technical Context
The MAX6383LT16D1+T 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 140ms reset assertion window after VCC rises above 1.58V, independent of supply ramp rate.
This device belongs to the MAX6381–MAX6390 family of single-supply supervisors with no manual reset (MR) or auxiliary RESET IN inputs-confirmed by pin configuration (GND, VCC, RESET only in SC70; GND, VCC, N.C., N.C., N.C., RESET in µDFN) and Selector Guide omission of MR/RESET IN for MAX6383.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 1.58V (min), ±2.5% accuracy over −40°C to +125°C - ensures stable trip point for 1.8V logic rails under temperature stress |
| Reset Timeout | 140ms (min) - guarantees µP remains held in reset long enough for full power stabilization before release |
| Supply Current | 3µA at VCC = 1.8V - enables multi-year battery life in always-on portable instrumentation |
| Operating Voltage Range | 1.0V to 5.5V - supports valid reset assertion during deep brownout down to near-dead-battery conditions |
| Output Type | Open-drain active-low - requires external pull-up but allows wired-OR reset bus sharing across multiple ICs |
| Package | 6-pin µDFN (2mm × 2mm, 0.5mm pitch) - provides high-density mounting for space-constrained IoT sensor nodes |
| Temperature Range | −40°C to +125°C - qualified for under-hood automotive and industrial control environments |
Pinout & Package
MAX6383LT16D1+T is housed in a 6-pin µDFN package (2mm × 2mm, 0.5mm pitch, RoHS-compliant). Pin 1 = GND, Pin 2 = VCC, Pins 3–5 = No Connection (N.C.), Pin 6 = RESET (active-low open-drain output).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | GND | Ground reference for internal comparator and timer; must be low-impedance connection to system ground plane |
| Pin 2 | VCC | Primary supply input and monitored voltage rail; powers internal circuitry and serves as reset trigger source |
| Pins 3–5 | N.C. | No internal connection; left floating or tied to GND per layout best practices to minimize parasitic coupling |
| Pin 6 | RESET | Open-drain active-low reset output; requires external pull-up resistor (typically 10kΩ to VCC) to generate logic-high when deasserted |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed 1.58V threshold | Eliminates external resistor divider and calibration effort for 1.8V system monitoring |
| 140ms fixed reset timeout | Matches typical power-rail stabilization time for LDOs and DC-DC converters in portable designs |
| 3µA supply current at 1.8V | Reduces quiescent load on coin-cell batteries by >90% versus legacy reset ICs |
| Valid reset down to VCC = 1.0V | Prevents spurious release during slow discharge of backup power sources |
| −40°C to +125°C operation | Enables deployment in automotive engine-control modules without derating |
Applications
| Portable Medical Sensors | Industrial PLC I/O Modules |
|---|---|
Use Scenario: Wearable ECG patch continuously monitoring heart rhythm on CR2032 coin cell. IC Role / Device Role / Timing Role: Supervises 1.8V analog front-end and BLE SoC supply; asserts reset until VCC stabilizes post-power-on and holds µP during battery voltage sag. Use Value: 3µA ICC extends battery life beyond 2 years; 1.58V threshold precisely matches 1.8V rail dropout margin; open-drain output interfaces cleanly with SoC's shared reset bus. |
Use Scenario: DIN-rail mounted digital input module operating in factory ambient up to +70°C. IC Role / Device Role / Timing Role: Monitors isolated 3.3V field-side supply; triggers hardware reset on transient dips caused by motor switching noise. Use Value: ±2.5% threshold accuracy prevents false resets at temperature extremes; 140ms timeout exceeds worst-case LDO recovery; 125°C rating avoids thermal derating in enclosed enclosures. |
| Automotive Body Control Units | Smart Energy Meters |
Use Scenario: Door module powered from vehicle battery (9V–16V) with local 3.3V LDO for MCU. IC Role / Device Role / Timing Role: Resets MCU if 3.3V rail drops below 1.58V due to cold-cranking or load-dump transients. Use Value: Negative-going transient immunity (per Typical Operating Characteristics graph) suppresses glitches <10µs at 100mV overdrive; 6-pin µDFN fits tight PCB real estate near LDO. |
Use Scenario: Revenue-grade meter with tamper detection, running 24/7 on AC-DC adapter + supercap backup. IC Role / Device Role / Timing Role: Ensures clean boot sequence after AC loss and supercap discharge; prevents corrupted firmware execution during brownout. Use Value: Valid reset down to VCC = 1.0V guarantees hold-time even as supercap decays to 1.2V; RoHS-compliant µDFN meets global environmental compliance mandates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6326LTRD1+T | Same 1.58V threshold and 140ms timeout, but push-pull active-low output (no external pull-up required) | Better suited for systems lacking pull-up resources or requiring faster rise times | Select when board layout cannot accommodate external pull-up or when driving capacitive loads >50pF |
| TPS3808G15DBVR | 1.5V threshold (±0.5%), 200ms timeout, 1.4µA ICC at 1.8V, SOT-23-5 package | Higher accuracy and lower current, but requires MR pin connection (unavailable on MAX6383LT16D1+T) | Select when ultra-low power and tighter threshold tolerance are prioritized over pin count and footprint compatibility |
Compared with MAX6383LT16D1+T, MAX6326LTRD1+T eliminates external component count but increases drive strength, while TPS3808G15DBVR trades pin simplicity for superior accuracy and current efficiency-making each optimal for distinct trade-off priorities in cost-sensitive, space-constrained, or performance-critical designs.
Availability
MAX6383LT16D1+T is available at Aetrix Electronics and suitable for portable medical sensors, industrial PLC I/O modules, and automotive body control units requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6383LT16D1+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 product line delivers single/dual low-voltage supervisory circuits optimized for battery-powered and thermally harsh environments where deterministic reset behavior and minimal quiescent current are essential.
FAQ
What is the exact reset threshold voltage of MAX6383LT16D1+T and how is it specified?
The MAX6383LT16D1+T has a factory-set reset threshold of 1.58V (minimum), with nominal value 1.62V and maximum 1.67V over −40°C to +125°C. This is confirmed in the Reset Thresholds table (suffix "16") and Electrical Characteristics section, where ±2.5% accuracy is guaranteed across temperature. The threshold is internally trimmed and does not require external components.
Does MAX6383LT16D1+T include a manual reset input (MR) or auxiliary RESET IN pin?
No, MAX6383LT16D1+T does not include MR or RESET IN functionality. Per the Selector Guide and Pin Description tables, only MAX6384–MAX6386 and MAX6390 feature MR, while MAX6387–MAX6389 include RESET IN. MAX6383 is explicitly listed without either function and uses only GND, VCC, and RESET pins in both SC70 and µDFN packages.
What is the supply current of MAX6383LT16D1+T at 1.8V and how does it scale with voltage?
MAX6383LT16D1+T draws 3µA (typical) at VCC = 1.8V and no load, rising to 6µA at 3.6V and 13µA at 5.5V per Electrical Characteristics. This ultra-low current enables multi-year operation in battery-backed applications; the 3µA figure is validated at TA = +25°C and guaranteed over full temperature range.
Can MAX6383LT16D1+T operate reliably when VCC drops below 1.8V?
Yes, MAX6383LT16D1+T guarantees correct reset output state down to VCC = 1.0V, as stated in Absolute Maximum Ratings and Detailed Description. Below 1.0V, operation is not specified-but the 1.0V guarantee ensures robustness during deep brownout events common in lithium primary cells and supercapacitor backup systems.
What package type and dimensions does MAX6383LT16D1+T use, and is it RoHS-compliant?
MAX6383LT16D1+T is supplied in a 6-pin µDFN package measuring 2mm × 2mm with 0.5mm pitch. The "+T" suffix confirms lead(Pb)-free/RoHS-compliance per Maxim's Ordering Information note. Land pattern number 90-0080 and outline 21-0147 are documented in the Package Information section.
MAX6383LT16D1+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 6-WFDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 1.58V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 1ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-µDFN (1.5x1)
MAX6383LT16D1+T FAQ
1.How can I place an order for MAX6383LT16D1+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6383LT16D1+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 MAX6383LT16D1+T reliable?
The price and inventory of MAX6383LT16D1+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6383LT16D1+T is usually 5 days.
3.What payment methods are accepted for MAX6383LT16D1+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6383LT16D1+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6383LT16D1+T?
MAX6383LT16D1+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6383LT16D1+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 MAX6383LT16D1+T?
For technical support, including MAX6383LT16D1+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6383LT16D1+T requirements.
6.How does Aetrix verify that MAX6383LT16D1+T is sourced from the original manufacturer or authorized distributors?
All MAX6383LT16D1+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 MAX6383LT16D1+T meets industry standards.
7.What is the process for return or replacement of MAX6383LT16D1+T?
All MAX6383LT16D1+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6383LT16D1+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 MAX6383LT16D1+T part is unused and in its original packaging.
Return procedure for MAX6383LT16D1+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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