My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX6363LUT26-T
- Part No.:
- MAX6363LUT26-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6363LUT26-T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:1,949
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX6363LUT26-T from Maxim Integrated is a low-power microprocessor supervisory circuit with battery switchover and BATT ON status indication. It operates from +1.2V supply, features factory-preset 2.63V reset threshold, 150ms minimum reset timeout, active-low push-pull RESET output, and supports SRAM backup in brownout conditions. Used in portable/battery-powered equipment for reliable power-fail detection and memory retention.
For engineers reviewing the MAX6363LUT26-T datasheet, MAX6363LUT26-T pinout, MAX6363LUT26-T application, or MAX6363LUT26-T equivalent, key selection criteria include guaranteed reset assertion down to 1.2V, battery-on output signaling, SOT23-6 package compatibility, and precise 2.63V ±1.5% threshold for +2.5V system monitoring.
Technical Context
The MAX6363LUT26-T implements a precision voltage monitor with hysteresis-based VCC–VBATT switchover logic: it connects OUT to BATT only when VCC falls below both the 2.63V reset threshold and VBATT−0.2V, preventing oscillation during slow brownouts. Its internal MOSFET switch delivers up to 25mA from battery at 2.25V input with 2.7Ω typical on-resistance.
Unlike MAX6361 (manual reset) or MAX6362 (watchdog), the MAX6363 variant integrates dedicated BATT ON open-drain output that asserts high exclusively during battery-backup mode-enabling external logic or LED indication without additional components. Reset propagation delay is ≤280µs over temperature, and supply current remains ≤15µA at +25°C with no load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.63V ±1.5% - precisely monitors +2.5V rails with margin for tolerance drift |
| Reset Timeout Period | 150ms minimum - ensures µP completes power-up initialization before release |
| Operating Supply Range | +1.2V to +5.5V - supports single-cell Li+ and multi-rail embedded systems |
| Supply Current (ICC) | 15µA max at +25°C - enables multi-year operation in battery-backed SRAM hold circuits |
| Battery Switchover Hysteresis | 40mV (VBATT − VCC ≥ 20mV to engage; VCC − VBATT ≥ 20mV to disengage) - prevents chattering during marginal VCC recovery |
| RESET Output Type | Active-low push-pull - drives µP reset directly without external pull-up, compatible with TTL/CMOS inputs |
| BATT ON Output | Open-drain, active-high - signals battery-backup mode to host controller or status LED |
Pinout & Package
Package: 6-pin SOT23 (U6-1), -40°C to +85°C operating range, RoHS-compliant lead-free construction (suffix -T).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - RESET | Active-low push-pull reset output | Drives µP reset pin directly; sinks 20mA; valid down to 1.2V VCC |
| 2 - GND | Ground reference | Common return for VCC, BATT, and all internal comparators |
| 3 - MR | Manual reset input | Unused in MAX6363; internally pulled up to VCC; leave unconnected |
| 4 - VCC | Main supply input | Primary power source; reset asserted when VCC < 2.63V |
| 5 - OUT | Power output | Switches between VCC and BATT; sources up to 25mA from battery in backup mode |
| 6 - BATT | Backup battery input | Accepts 2.0V–5.5V; enables SRAM retention when VCC fails |
Key Features
| Feature | Design Value |
|---|---|
| Battery-on status indicator | Dedicated open-drain BATT ON output simplifies system-level battery-mode detection without firmware polling |
| Precision 2.63V reset threshold | Factory-trimmed ±1.5% accuracy eliminates external resistor networks for +2.5V rail monitoring |
| 1.2V minimum operating voltage | Enables use with single-cell Li+ (2.5–4.2V) or NiMH (1.2V nominal) backup sources without regulation |
| 150ms reset timeout guarantee | Ensures deterministic µP reset timing across full temperature range, critical for fail-safe boot sequences |
| SOT23-6 footprint | 0.95mm pitch, 2.9mm × 1.6mm body - fits space-constrained portable designs while enabling automated assembly |
Applications
| Portable Medical Devices | Industrial Data Loggers |
|---|---|
Use Scenario: Continuous ECG monitoring with flash memory storage during AC power loss. IC Role / Device Role / Timing Role: Supervisory circuit maintains SRAM state and triggers controlled shutdown via BATT ON signal. Use Value: Prevents data corruption by asserting reset only after stable battery switchover and holding µP in reset for ≥150ms. | Use Scenario: Remote sensor node logging temperature/humidity to EEPROM on battery power. IC Role / Device Role / Timing Role: Provides battery-backed power path and indicates backup mode to MCU for low-power state transition. Use Value: BATT ON output enables firmware to disable non-essential peripherals immediately upon switchover, extending battery life. |
| Point-of-Sale Terminals | Smart Meters |
Use Scenario: Transaction rollback protection during mains failure in retail payment systems. IC Role / Device Role / Timing Role: Monitors 3.3V logic rail and asserts RESET to halt processor before voltage collapse corrupts flash writes. Use Value: 2.63V threshold aligns with 3.3V supply tolerance (±5%), ensuring reset triggers before brownout affects digital logic. | Use Scenario: Tamper-resistant energy meter retaining timekeeping and tariff data during grid outage. IC Role / Device Role / Timing Role: Switches real-time clock and nonvolatile memory to backup battery while signaling mode change via BATT ON. Use Value: 40mV switchover hysteresis prevents repeated toggling during noisy grid recovery, preserving battery charge. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6363HUT26-T | Same 2.63V threshold and BATT ON function, but rated for higher temperature range (-40°C to +125°C) | Required for under-hood automotive or industrial environments exceeding +85°C | Select when extended temperature operation is mandatory; otherwise identical functionality and pinout |
| TPS3808G33DBVR | 2.93V fixed threshold, 350ms reset timeout, no BATT ON output, supports watchdog timer | Lacks battery switchover and status indication; suited for simple reset-only applications | Choose only if BATT ON and backup switching are unnecessary and higher reset timeout is acceptable |
Compared with MAX6363HUT26-T, the MAX6363LUT26-T trades extended temperature rating for cost optimization in commercial-grade portable devices; versus TPS3808G33DBVR, it provides unique battery-backup signaling and tighter threshold accuracy at the expense of watchdog capability.
Availability
MAX6363LUT26-T is available at Aetrix Electronics and suitable for portable medical devices, industrial data loggers, point-of-sale terminals, and smart meters requiring stable component supply and long-term lifecycle support.
Supply support for MAX6363LUT26-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 power management, sensing, and interface applications.
The MAX6361–MAX6364 family targets low-power microprocessor supervision in battery-critical systems, emphasizing ultra-low quiescent current, accurate voltage monitoring, and seamless backup power handover.
FAQ
What is the exact reset threshold voltage of the MAX6363LUT26-T?
The MAX6363LUT26-T has a factory-preset reset threshold of 2.63V with ±1.5% accuracy over temperature. This value is laser-trimmed during production and specified in the Electrical Characteristics table under "Reset Threshold" (VTH) for the "MAX636_UT26" suffix. It is optimized for monitoring +2.5V power rails with sufficient margin against tolerance drift.
Does the MAX6363LUT26-T provide battery switchover functionality?
Yes, the MAX6363LUT26-T automatically switches the OUT pin from VCC to the BATT supply when VCC falls below both the 2.63V reset threshold and VBATT − 0.2V. This dual-condition logic prevents oscillation during slow brownouts. The device also asserts the BATT ON output high during this mode, providing explicit status indication for system-level control.
What is the purpose of the BATT ON pin on the MAX6363LUT26-T?
The BATT ON pin on the MAX6363LUT26-T is an open-drain, active-high output that signals when the device is operating in battery-backup mode. It goes high only when VCC is below the reset threshold and VBATT is actively powering OUT. This allows external circuitry or firmware to detect backup mode and initiate power-saving actions, such as disabling displays or radios.
Can the MAX6363LUT26-T operate from a single-cell lithium battery?
Yes, the MAX6363LUT26-T operates from supply voltages as low as +1.2V, making it compatible with discharged single-cell Li+ batteries (down to ~2.5V) and NiMH cells. Its supply current is only 15µA typical at +25°C, enabling multi-year operation in always-on backup applications. The 2.63V reset threshold ensures reliable detection before the battery reaches critical depletion.
Is the MAX6363LUT26-T pin-compatible with other members of the MAX6361–MAX6364 family?
Yes, all MAX6361–MAX6364 variants, including the MAX6363LUT26-T, share identical SOT23-6 pinouts and footprints. However, functional differences exist: MAX6363 includes BATT ON output, while MAX6361 offers manual reset and MAX6362 adds watchdog timer. Pin compatibility enables drop-in replacement only within the same functional variant group (e.g., MAX6363HUT26-T).
MAX6363LUT26-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Battery Backup Circuit
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.63V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active Low
- Reset Timeout:
- 150ms Minimum
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-6
MAX6363LUT26-T FAQ
1.How can I place an order for MAX6363LUT26-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6363LUT26-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 MAX6363LUT26-T reliable?
The price and inventory of MAX6363LUT26-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6363LUT26-T is usually 5 days.
3.What payment methods are accepted for MAX6363LUT26-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6363LUT26-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6363LUT26-T?
MAX6363LUT26-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6363LUT26-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 MAX6363LUT26-T?
For technical support, including MAX6363LUT26-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6363LUT26-T requirements.
6.How does Aetrix verify that MAX6363LUT26-T is sourced from the original manufacturer or authorized distributors?
All MAX6363LUT26-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 MAX6363LUT26-T meets industry standards.
7.What is the process for return or replacement of MAX6363LUT26-T?
All MAX6363LUT26-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6363LUT26-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 MAX6363LUT26-T part is unused and in its original packaging.
Return procedure for MAX6363LUT26-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6363LUT26-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…
