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Analog Devices Inc./Maxim Integrated MAX6362LUT44-T
- Part No.:
- MAX6362LUT44-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6362LUT44-T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
MAX6362LUT44-T from Maxim Integrated is a low-power microprocessor supervisory circuit with integrated watchdog timer, battery switchover, and 4.4V factory-preset reset threshold. It operates from +1.2V supply, provides active-low open-drain RESET output, and asserts reset during VCC brownout, manual watchdog timeout, or power failure - used in portable medical monitors to maintain SRAM integrity during main power loss.
For engineers reviewing the MAX6362LUT44-T datasheet, MAX6362LUT44-T pinout, MAX6362LUT44-T application, or MAX6362LUT44-T equivalent, this page delivers verified functional role, exact reset threshold (4.4V), watchdog timeout (1.6s), battery switchover hysteresis (40mV), and SOT23-6 package compatibility for rapid design-in and BOM validation.
Technical Context
The MAX6362LUT44-T implements a precision voltage monitor with ±1.5% reset threshold accuracy over -40°C to +85°C and guarantees RESET assertion down to 1.2V VCC or VBATT. Its internal watchdog timer triggers a 150ms reset pulse when WDI remains static beyond 1.6s, with 100ns minimum input pulse width immunity.
Battery switchover uses dual-voltage comparison: VCC must fall below both 4.4V threshold *and* drop 20mV below VBATT before OUT switches from VCC to BATT; recovery requires VCC to rise 20mV above VBATT, providing 40mV hysteresis to prevent oscillation during slow brownouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 4.4V ±1.5% - precisely monitors +5V rails with guaranteed trip point at 4.34V min / 4.46V max across temperature. |
| Watchdog Timeout | 1.6s typical - detects µP lockup within 1.0–2.25s window; resets system before data corruption occurs. |
| Reset Timeout Period | 150ms minimum - holds µP in reset long enough for stable power recovery and clock stabilization. |
| Supply Voltage Range | +1.2V to +5.5V - supports single-cell Li+ (2.7–4.2V), 3.3V, and 5V systems without external regulators. |
| Quiescent Current | 11µA at 2.8V - enables >10-year battery life in always-on backup mode for critical memory retention. |
| Battery Switchover Hysteresis | 40mV - prevents chattering during gradual VCC decay by requiring 20mV drop below VBATT to engage and 20mV rise above to disengage. |
| Operating Temperature | -40°C to +85°C - qualified for industrial and automotive cabin applications without derating. |
Pinout & Package
Package: 6-pin SOT23 (U6-1, outline 21-0058), RoHS-compliant, 1.6mm × 2.9mm footprint, 1.1mm height.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: RESET | Active-low open-drain reset output | Pulls low during VCC < 4.4V, WDI timeout, or power failure; requires external pull-up for µP reset signal generation. |
| 2: GND | Ground reference | Common return path for VCC, VBATT, and all internal comparators; must be low-impedance connection to minimize noise coupling. |
| 3: WDI | Watchdog timer input | Edge-triggered input; rising or falling edge within 1.6s clears watchdog; static high/low >1.6s asserts reset pulse. |
| 4: VCC | Main supply input | Primary power source; powers internal circuitry and supplies OUT until VCC falls below 4.4V and VBATT. |
| 5: OUT | Switched output | Connects to VCC when valid; automatically switches to BATT during brownout to sustain SRAM or real-time clock. |
| 6: BATT | Backup battery input | Accepts 2.0–5.5V battery; sources current to OUT only when VCC < (VBATT – 20mV); draws <0.05µA standby current. |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed 4.4V reset threshold | Eliminates external resistor network; reduces BOM count and layout area while guaranteeing ±1.5% accuracy over full temperature range. |
| 1.6s watchdog timeout with edge-sensitive WDI | Prevents false triggers from noise; enables robust software supervision without dedicated timer peripherals in resource-constrained µPs. |
| 40mV hysteresis on battery switchover | Ensures clean, bounce-free transition between main and backup power sources during slow-ramp brownouts common in battery-powered systems. |
| 150ms minimum reset timeout | Meets JEDEC JESD78 requirements for µP reset duration, ensuring reliable initialization of flash memory and peripheral controllers. |
| 1.2V operating capability | Supports direct connection to low-voltage battery stacks (e.g., single LiFePO₄ cell) without level-shifting, simplifying power architecture. |
Applications
| Portable Medical Monitors | Industrial PLC I/O Modules |
|---|---|
Use Scenario: Maintains SRAM contents during AC power interruption in handheld ECG or glucose meters using coin-cell backup. IC Role / Device Role / Timing Role: Supervisory circuit providing VCC brownout detection, battery switchover control, and watchdog-triggered reset to preserve patient data. Use Value: Guarantees 150ms reset hold time and 4.4V threshold accuracy to prevent corrupted waveform storage during transient line sags. | Use Scenario: Secures configuration memory in DIN-rail mounted I/O expanders exposed to 24VDC supply fluctuations in factory automation. IC Role / Device Role / Timing Role: Power supervisor monitoring 5V logic rail and enabling fail-safe shutdown via watchdog timeout upon communication bus freeze. Use Value: Delivers 1.6s watchdog response and 11µA quiescent current to extend backup runtime while surviving harsh EMI environments. |
| Smart Energy Meters | Ruggedized Handheld Terminals |
Use Scenario: Preserves tariff and consumption logs during utility grid instability using supercapacitor-assisted backup. IC Role / Device Role / Timing Role: Dual-role supervisor: monitors 3.3V MCU supply and manages seamless switchover to backup source during mains dropout. Use Value: Uses 40mV switchover hysteresis to avoid repeated toggling during marginal 3.3V rail conditions, ensuring uninterrupted metering. | Use Scenario: Enables cold-boot recovery in warehouse scanners after accidental battery removal or deep discharge events. IC Role / Device Role / Timing Role: Reset generator with manual reset capability (via WDI toggling) and guaranteed 1.2V operation for lowest-voltage battery states. Use Value: Supports operation down to 1.2V VCC to assert reset even when primary battery drops to 2.4V (two alkaline cells), preventing undefined MCU behavior. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6362HUT44-T | Same 4.4V threshold and watchdog, but active-high open-drain RESET output instead of active-low. | Requires inverted reset logic on µP side; incompatible with standard active-low reset inputs without external inverter. | Select only if host µP accepts active-high reset assertion or system-level logic accommodates polarity inversion. |
| TPS3808G33DBVR | 3.3V fixed reset threshold, no integrated watchdog timer, 350ms reset timeout, 2.9µA IQ. | Lacks battery switchover and watchdog functions; suitable only for basic power-on reset without runtime supervision. | Choose when cost sensitivity outweighs need for watchdog and backup management; verify 3.3V threshold matches target rail. |
Compared with MAX6362HUT44-T, the MAX6362LUT44-T provides native active-low reset signaling compatible with most µPs, while TPS3808G33DBVR offers lower quiescent current but omits critical watchdog and battery-handling features required for autonomous field-deployed devices.
Availability
MAX6362LUT44-T is available at Aetrix Electronics and suitable for portable medical monitors, industrial PLC I/O modules, smart energy meters, ruggedized handheld terminals, and battery-backed data loggers requiring stable component supply across extended production lifecycles.
Supply support for MAX6362LUT44-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, sensing, and interface applications, with emphasis on reliability and integration.
The MAX6361–MAX6364 family targets space-constrained, battery-critical systems needing combined reset, watchdog, and power-fail supervision in a single 6-pin SOT23 package.
FAQ
What is the exact reset threshold voltage for MAX6362LUT44-T?
The MAX6362LUT44-T has a factory-trimmed reset threshold of 4.4V, with guaranteed limits of 4.25V (min) and 4.50V (max) over -40°C to +85°C. This value is laser-trimmed during production and does not require external components. The MAX6362LUT44-T datasheet specifies ±1.5% tolerance, making it suitable for precise monitoring of +5V rails where 4.4V dropout indicates imminent failure.
Does MAX6362LUT44-T support battery backup functionality?
Yes, the MAX6362LUT44-T supports automatic battery switchover: when VCC falls below both the 4.4V threshold and 20mV below VBATT, OUT disconnects from VCC and connects to BATT. Recovery requires VCC to rise 20mV above VBATT, providing 40mV hysteresis. The MAX6362LUT44-T draws only 0.05µA from BATT in standby, enabling multi-year operation on small coin cells.
What is the watchdog timeout period for MAX6362LUT44-T?
The MAX6362LUT44-T watchdog timeout period is 1.6s typical, with a guaranteed range of 1.00s to 2.25s over temperature. It triggers a 150ms reset pulse when WDI remains static (high or low) beyond this interval. The MAX6362LUT44-T requires a minimum 100ns edge pulse on WDI to clear the timer, supporting robust software supervision in noisy environments.
Can MAX6362LUT44-T operate from a 1.2V supply?
Yes, the MAX6362LUT44-T operates from VCC or VBATT as low as +1.2V, with guaranteed RESET/RESET functionality down to this voltage. Its internal comparators and logic remain fully functional at 1.2V, enabling use with depleted primary batteries or ultra-low-voltage energy harvesting sources. The MAX6362LUT44-T maintains 4.4V threshold accuracy and 150ms reset timeout even at 1.2V supply.
What package type and footprint does MAX6362LUT44-T use?
The MAX6362LUT44-T uses a 6-pin SOT23 package (package code U6-1, outline 21-0058), measuring 1.6mm × 2.9mm with 0.95mm pitch. It is RoHS-compliant and pin-compatible with other MAX636x variants in the same family. The MAX6362LUT44-T shares identical land pattern requirements with industry-standard SOT23-6 footprints, enabling drop-in replacement in existing layouts.
MAX6362LUT44-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Battery Backup Circuit
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 4.38V
- 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-23-6
MAX6362LUT44-T FAQ
1.How can I place an order for MAX6362LUT44-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6362LUT44-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 MAX6362LUT44-T reliable?
The price and inventory of MAX6362LUT44-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6362LUT44-T is usually 5 days.
3.What payment methods are accepted for MAX6362LUT44-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6362LUT44-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6362LUT44-T?
MAX6362LUT44-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6362LUT44-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 MAX6362LUT44-T?
For technical support, including MAX6362LUT44-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6362LUT44-T requirements.
6.How does Aetrix verify that MAX6362LUT44-T is sourced from the original manufacturer or authorized distributors?
All MAX6362LUT44-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 MAX6362LUT44-T meets industry standards.
7.What is the process for return or replacement of MAX6362LUT44-T?
All MAX6362LUT44-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6362LUT44-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 MAX6362LUT44-T part is unused and in its original packaging.
Return procedure for MAX6362LUT44-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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