My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX6383LT25D3+T
- Part No.:
- MAX6383LT25D3+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 6-WFDFN
- Datasheet:
-
MAX6383LT25D3+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 6UDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,127
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX6383LT25D3+T from Maxim Integrated is an open-drain active-low microprocessor supervisory circuit designed for power-supply voltage monitoring in low-power embedded systems. It features a factory-set 2.5V reset threshold (±2.5% over -40°C to +125°C), 140ms minimum reset timeout, 3μA supply current at +1.8V, and guaranteed valid reset output down to VCC = 1V. It is used in portable equipment and critical μP systems requiring reliable brownout detection.
For engineers reviewing the MAX6383LT25D3+T datasheet, MAX6383LT25D3+T pinout, MAX6383LT25D3+T application, or MAX6383LT25D3+T equivalent, key selection criteria include reset threshold accuracy, open-drain output compatibility with shared bus lines, low quiescent current for battery operation, and guaranteed operation down to 1V VCC.
Technical Context
The MAX6383LT25D3+T implements a precision bandgap-based reset comparator with ±2.5% threshold accuracy across -40°C to +125°C and 60ppm/°C tempco. Its internal timer generates a fixed 140ms minimum reset assertion period after VCC rises above 2.5V.
As a member of the MAX6381–MAX6390 family, it uses BiCMOS process technology and supports only VCC monitoring (no MR input or RESET IN auxiliary input). Its open-drain RESET output requires an external pullup resistor and sinks up to 3.2mA at VCC ≥ 4.5V with VOL ≤ 0.4V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.50V nominal, ±2.5% over temperature - ensures reliable detection of 2.5V rail brownout across industrial range |
| Reset Timeout | 140ms minimum - guarantees μP remains held in reset long enough for stable power-up sequencing |
| Supply Current | 3μA at +1.8V - enables multi-year battery life in always-on portable instrumentation |
| Operating Voltage | 1.0V to 5.5V - supports valid reset assertion even during deep brownout down to 1V VCC |
| Output Type | Open-drain active-low - allows wired-OR connection with other reset sources on shared reset bus |
| Threshold Tempco | 60ppm/°C - limits drift to <±15mV over full temperature range, preserving margin against false triggers |
| VCC Transient Immunity | Validated against negative-going glitches - suppresses spurious resets from short-duration supply noise |
Pinout & Package
MAX6383LT25D3+T is housed in a 6-pin μDFN package (1.5mm × 1.5mm, 0.5mm pitch) with wettable flanks, RoHS-compliant and lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for all internal circuitry and reset comparator |
| 2 | VCC | Primary power supply input and monitored voltage rail |
| 3 | N.C. | No internal connection - must be left unconnected or tied to GND/VCC per layout guidelines |
| 4 | RESET | Open-drain active-low reset output - requires external pullup; asserts low during VCC undervoltage |
| 5 | N.C. | No internal connection - must be left unconnected or tied to GND/VCC per layout guidelines |
| 6 | N.C. | No internal connection - must be left unconnected or tied to GND/VCC per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed 2.5V threshold | Eliminates external resistor divider, reducing BOM count and layout area in space-constrained designs |
| 140ms reset timeout | Matches typical power-up stabilization time for 2.5V LDOs and microcontrollers without requiring external timing components |
| 3μA supply current at 1.8V | Enables integration into ultra-low-power wake-on-event subsystems without impacting standby budget |
| Guaranteed operation down to VCC = 1V | Ensures deterministic reset behavior during severe brownout conditions where many competitors fail |
| Open-drain output with 3.2mA sink capability | Supports direct interface to 1.8V–5V logic families and robust noise immunity on shared reset buses |
Applications
| Battery-Powered IoT Sensor Node | Industrial PLC I/O Module |
|---|---|
Use Scenario: A wireless temperature sensor operates from a single Li-ion cell (2.8V–4.2V), entering deep sleep between readings. IC Role / Device Role / Timing Role: MAX6383LT25D3+T monitors the 2.5V system rail generated by an LDO and asserts reset if voltage drops below 2.5V due to battery sag or load surge. Use Value: Prevents firmware corruption during brownout by holding the MCU in reset until rail recovers and stabilizes for ≥140ms. | Use Scenario: An isolated digital input module powers its microcontroller and signal conditioning from a 2.5V rail derived from a 24V industrial supply. IC Role / Device Role / Timing Role: MAX6383LT25D3+T provides VCC supervision for the 2.5V domain, asserting open-drain reset to a common system reset bus shared with other modules. Use Value: Enables synchronized recovery across distributed I/O nodes via wired-OR reset architecture without level-shifting. |
| Medical Wearable ECG Front-End | Automotive Body Control Module (BCM) Subsystem |
Use Scenario: A compact ECG analog front-end uses a 2.5V rail for precision ADC and op-amps, powered by a coin-cell battery. IC Role / Device Role / Timing Role: MAX6383LT25D3+T supervises the 2.5V rail and guarantees valid reset output down to VCC = 1V, ensuring safe shutdown before analog circuitry becomes unstable. Use Value: Avoids erroneous ECG data capture during battery depletion by enforcing clean reset before supply collapse. | Use Scenario: A BCM subassembly uses a local 2.5V rail for CAN transceiver biasing and microcontroller peripherals, subject to load dump and cold-crank transients. IC Role / Device Role / Timing Role: MAX6383LT25D3+T detects 2.5V rail collapse during cold-crank events and asserts reset for ≥140ms after recovery to prevent CAN bus arbitration errors. Use Value: Provides transient-immune supervision that meets automotive brownout immunity requirements without external filtering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX809TRD3+T | Same 2.5V threshold and 140ms timeout, but push-pull active-low output and 3-pin SC70 package | Lacks open-drain flexibility; not suitable for wired-OR reset buses | Select when board space is constrained and shared reset bus is not required |
| TPS3808G33DBVR | 2.5V threshold, 200ms timeout, push-pull active-low, 5.5V max VCC, 1.8μA ICC at 1.8V | Higher accuracy (±0.5%), but no open-drain option and different timeout value | Select when tighter threshold tolerance is critical and open-drain is unnecessary |
Compared with MAX809TRD3+T and TPS3808G33DBVR, MAX6383LT25D3+T uniquely delivers open-drain reset output in a 6-pin μDFN package with industry-leading 3μA supply current at 1.8V - essential for battery-powered systems requiring bus-shared reset signaling.
Availability
MAX6383LT25D3+T is available at Aetrix Electronics and suitable for portable/battery-powered equipment, industrial PLC modules, medical wearables, and automotive BCM subsystems requiring stable component supply and long-term lifecycle support.
Supply support for MAX6383LT25D3+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) is a semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, automotive, and computing applications.
The MAX6381–MAX6390 family was designed specifically for low-voltage, low-power microprocessor supervision in space- and energy-constrained systems, emphasizing precision threshold accuracy, ultra-low ICC, and robust transient immunity.
FAQ
What is the exact reset threshold voltage and tolerance for MAX6383LT25D3+T?
The MAX6383LT25D3+T has a nominal reset threshold of 2.50V with ±2.5% accuracy over the full operating temperature range of -40°C to +125°C. This means the actual threshold falls between 2.44V and 2.56V at +25°C, and between 2.44V and 2.56V across temperature - verified by design and guaranteed in production testing per the datasheet Electrical Characteristics table.
Does MAX6383LT25D3+T include a manual reset input (MR)?
No, MAX6383LT25D3+T does not include a manual reset input. It belongs to the MAX6381/MAX6382/MAX6383 subgroup, which supports only VCC monitoring and open-drain active-low reset output. Manual reset functionality is available only in MAX6384–MAX6386 and MAX6390 variants, as confirmed in the Selector Guide and Pin Description sections of the datasheet.
What package type and dimensions does MAX6383LT25D3+T use?
MAX6383LT25D3+T uses a 6-pin μDFN package (outline number 21-0147) measuring 1.5mm × 1.5mm with 0.5mm pin pitch and wettable flanks. The package code is L611+1, and it is RoHS-compliant and lead-free, as indicated by the "+" suffix in the part number.
Can MAX6383LT25D3+T operate reliably when VCC drops below 1.8V?
Yes, MAX6383LT25D3+T is guaranteed to operate and assert a valid reset output down to VCC = 1.0V. Its reset output state remains well-defined even at 1V, unlike many competing supervisors that lose functionality below 1.5V - a key specification explicitly stated in the Absolute Maximum Ratings and Detailed Description sections.
What is the minimum reset timeout period for MAX6383LT25D3+T, and how is it implemented?
The minimum reset timeout period for MAX6383LT25D3+T is 140ms, denoted by the "D3" suffix. This is a fixed, factory-programmed internal timer delay that begins counting when VCC rises above the 2.5V threshold and holds the open-drain RESET output low for at least 140ms before releasing it - ensuring sufficient time for power rails and clocks to stabilize before μP execution resumes.
MAX6383LT25D3+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:
- 2.5V
- 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)
MAX6383LT25D3+T FAQ
1.How can I place an order for MAX6383LT25D3+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6383LT25D3+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 MAX6383LT25D3+T reliable?
The price and inventory of MAX6383LT25D3+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6383LT25D3+T is usually 5 days.
3.What payment methods are accepted for MAX6383LT25D3+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6383LT25D3+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6383LT25D3+T?
MAX6383LT25D3+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6383LT25D3+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 MAX6383LT25D3+T?
For technical support, including MAX6383LT25D3+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6383LT25D3+T requirements.
6.How does Aetrix verify that MAX6383LT25D3+T is sourced from the original manufacturer or authorized distributors?
All MAX6383LT25D3+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 MAX6383LT25D3+T meets industry standards.
7.What is the process for return or replacement of MAX6383LT25D3+T?
All MAX6383LT25D3+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6383LT25D3+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 MAX6383LT25D3+T part is unused and in its original packaging.
Return procedure for MAX6383LT25D3+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6383LT25D3+T Tags
-
MIC826SYMT-TR
Microchip Technology
-
APX803S-31SA-7
Diodes Incorporated
-
APX803L20-29SA-7
Diodes Incorporated
-
TPS3828-33DBVR
Texas Instruments
-
V6340RSP3B+
EM Microelectronic
-
EM6325CXSP5B-2.9+
EM Microelectronic
-
MCP120T-300I/TT
Microchip Technology
-
MCP130T-315I/TT
Microchip Technology
-
MCP120T-475I/TT
Microchip Technology
-
MCP111T-300E/TT
Microchip Technology
-
MCP120T-315I/TT
Microchip Technology
-
MCP809T-315I/TT
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
