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Analog Devices Inc./Maxim Integrated MAX6363LUT29+T
- Part No.:
- MAX6363LUT29+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6363LUT29+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:2,680
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Product details
Overview
MAX6363LUT29+T from Maxim Integrated is a low-power microprocessor supervisory circuit with battery switchover and BATT ON indicator functionality, designed for systems requiring reliable power-fail detection and SRAM backup. It operates from +1.2V supply, features factory-preset 2.93V reset threshold, 150ms minimum reset timeout, and delivers battery-backed output (OUT) with ≤2.63Ω on-resistance at VBATT = 2.8V. Used in portable/battery-powered equipment to maintain SRAM integrity during brownout.
For engineers reviewing the MAX6363LUT29+T datasheet, MAX6363LUT29+T pinout, MAX6363LUT29+T application, or MAX6363LUT29+T equivalent, key selection criteria include its SOT23-6 package, active-low push-pull RESET output, guaranteed reset assertion down to 1.2V VCC/VBATT, battery-on status indication, and precision 2.93V ±15mV reset threshold over -40°C to +85°C.
Technical Context
The MAX6363LUT29+T integrates a precision voltage monitor, battery switchover MOSFET, and BATT ON logic output in a single BiCMOS SOT23-6 device. Its reset comparator uses an internal 1.235V reference with temperature-compensated hysteresis, ensuring stable 2.93V threshold across operating temperature.
Battery switchover activates when VCC falls below both the 2.93V threshold and VBATT by ≥20mV; OUT transitions from VCC to VBATT with 40mV hysteresis to prevent oscillation. The BATT ON output asserts high only in validated battery-backup mode, as confirmed by Table 1 and Pin Description.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.93V ±15mV (factory preset; ensures reliable detection of 3.0V/3.3V supply brownout) |
| Reset Timeout Period | 150ms minimum (guarantees µP reset hold time after VCC recovery) |
| Operating Supply Range | +1.2V to +5.5V (supports ultra-low-voltage operation and wide input compatibility) |
| Battery Switchover Threshold | VCC < VBATT − 20mV (prevents premature switching; enables clean transition to backup) |
| BATT to OUT On-Resistance | ≤2.63Ω at VBATT = 2.8V, IOUT = 10mA (minimizes voltage drop and power loss in backup path) |
| Supply Current (VCC) | 15µA typical at VCC = 2.8V (enables multi-year battery life in standby) |
| BATT Standby Current | 0.05µA max at TA = −40°C to +85°C (preserves backup battery charge during extended outages) |
Pinout & Package
Package: 6-pin SOT23 (U6-1 outline, 2.1mm × 1.6mm footprint, RoHS-compliant lead-free).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND | Ground reference | Common return path for all internal circuits and output drivers |
| VCC | Main supply input | Primary power source; reset asserted when VCC falls below 2.93V |
| BATT | Backup battery input | Secondary power source; connects to OUT when VCC drops below VBATT − 20mV |
| OUT | Power output | Delivers regulated VCC or VBATT to SRAM; supports up to 150mA from VCC, 10mA from battery |
| BATT ON | Dedicated status output | Active-high open-drain signal indicating valid battery-backup mode (high = VBATT powering OUT) |
| RESET | Active-low push-pull reset | Asserts logic low during reset condition; drives µP reset pin directly without external pull-up |
Key Features
| Feature | Design Value |
|---|---|
| Battery-On Output Indicator | Provides unambiguous, logic-level BATT ON signal confirming active battery-backup mode - eliminates need for external monitoring circuitry |
| Precision 2.93V Reset Threshold | Factory-trimmed ±15mV tolerance ensures accurate detection of 3.0V supply undervoltage without external resistor networks |
| 150ms Guaranteed Reset Timeout | Meets JEDEC JESD78 requirements for µP reset pulse width, preventing spurious boot sequences during marginal power recovery |
| 1.2V Minimum Operating Voltage | Enables supervision of ultra-low-power systems (e.g., coin-cell–powered IoT sensors) where supply may dip below 2.0V |
| 40mV Battery Switchover Hysteresis | Prevents chattering during slow VCC ramp-down/ramp-up, ensuring single, clean transition between main and backup power sources |
Applications
| Portable Medical Sensors | Industrial Data Loggers |
|---|---|
Use Scenario: Wearable ECG monitor powered by CR2032 coin cell with intermittent USB charging. IC Role / Device Role / Timing Role: Supervisory circuit monitors main 3.3V rail and switches SRAM to battery during USB disconnect; BATT ON signals firmware to enter ultra-low-power mode. Use Value: Prevents SRAM data loss during 200ms power gap; 0.05µA BATT standby current extends battery life to >3 years. | Use Scenario: Remote environmental sensor node logging temperature/humidity every 10 seconds using Li-ion battery. IC Role / Device Role / Timing Role: Detects 3.0V system rail collapse during deep discharge; asserts RESET to halt MCU execution and triggers BATT ON to enable backup power path to nonvolatile memory. Use Value: Guarantees 150ms reset hold time for safe shutdown; 2.63Ω BATT-to-OUT resistance limits voltage sag to <27mV at 10mA load. |
| POS Terminal Backup | Smart Meter Real-Time Clock |
Use Scenario: Retail point-of-sale terminal with supercapacitor backup and 5V main supply. IC Role / Device Role / Timing Role: Monitors 5.0V rail; upon AC failure, switches SRAM to supercap backup and asserts BATT ON to disable noncritical peripherals. Use Value: 2.93V threshold matches 5V rail tolerance; 150ms timeout ensures full transaction commit before power loss. | Use Scenario: Electricity meter maintaining RTC and tamper logs during grid outage using 3.6V lithium battery. IC Role / Device Role / Timing Role: Provides fail-safe power switchover to battery and generates RESET to initialize RTC registers upon recovery. Use Value: 1.2V operation allows supervision down to end-of-life battery voltage; BATT ON enables firmware to timestamp outage duration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6363HUT29+T | Same 2.93V threshold and BATT ON function, but active-low open-drain RESET output (requires external pull-up) | Suitable where µP reset pin requires open-drain interface or level translation | Select when system design mandates open-drain reset signaling or shares RESET line with multiple devices |
| TPS3808G33DBVR | 3.3V fixed reset threshold, no BATT ON output, no battery switchover; 350ms reset timeout | Lacks battery management; used only for basic power-supply monitoring without backup control | Choose only if battery backup is unnecessary and 3.3V threshold suffices; not a functional replacement for MAX6363LUT29+T's BATT ON or switchover |
Compared with MAX6363HUT29+T, the MAX6363LUT29+T provides direct-drive reset capability without external components; versus TPS3808G33DBVR, it delivers integrated battery switchover and status indication essential for SRAM retention in portable systems.
Availability
MAX6363LUT29+T is available at Aetrix Electronics and suitable for portable medical sensors, industrial data loggers, POS terminal backup, and smart meter real-time clock applications requiring stable component supply and long-term lifecycle support.
Supply support for MAX6363LUT29+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 connectivity in demanding environments.
The MAX6361–MAX6364 family targets battery-backed µP systems needing reliable power-fail detection, SRAM backup, and status indication - optimized for space-constrained, low-power portable and industrial applications.
FAQ
What is the exact reset threshold voltage of the MAX6363LUT29+T?
The MAX6363LUT29+T has a factory-preset reset threshold of 2.93V, with a guaranteed tolerance of ±15mV over the full −40°C to +85°C operating temperature range. This value is laser-trimmed during production and specified in the Electrical Characteristics table under "Reset Threshold" (VTH) for suffix "UT29". It is designed to accurately monitor 3.0V and 3.3V power rails.
Does the MAX6363LUT29+T provide battery switchover functionality?
Yes, the MAX6363LUT29+T provides automatic battery switchover. When VCC falls below both the 2.93V reset threshold and VBATT by at least 20mV, the internal MOSFET connects the BATT pin to the OUT pin. The device includes 40mV hysteresis to prevent oscillation during slow VCC transitions, and the BATT ON output goes high to indicate active battery-backup mode.
What type of reset output does the MAX6363LUT29+T feature?
The MAX6363LUT29+T features an active-low push-pull RESET output. Unlike open-drain variants, this output drives logic low actively and logic high actively - eliminating the need for an external pull-up resistor. It is compatible with standard µP reset inputs and guarantees valid logic levels down to 1.2V supply voltage.
Can the MAX6363LUT29+T operate from a 1.2V supply?
Yes, the MAX6363LUT29+T is fully specified to operate from a minimum supply voltage of +1.2V on either VCC or VBATT. Its internal comparators, reference, and output drivers remain functional and meet all timing and threshold specifications at 1.2V, enabling use in ultra-low-power applications such as coin-cell–powered IoT edge nodes.
What is the purpose of the BATT ON pin on the MAX6363LUT29+T?
The BATT ON pin on the MAX6363LUT29+T is an active-high open-drain output that asserts high only when the device is confirmed in battery-backup mode - i.e., when VCC is below both the 2.93V threshold and VBATT by ≥20mV. It provides a dedicated hardware signal to firmware or external logic to enable power-saving actions, disable peripherals, or log backup events without polling.
MAX6363LUT29+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Battery Backup Circuit
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.93V
- 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
MAX6363LUT29+T FAQ
1.How can I place an order for MAX6363LUT29+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6363LUT29+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 MAX6363LUT29+T reliable?
The price and inventory of MAX6363LUT29+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6363LUT29+T is usually 5 days.
3.What payment methods are accepted for MAX6363LUT29+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6363LUT29+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6363LUT29+T?
MAX6363LUT29+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6363LUT29+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 MAX6363LUT29+T?
For technical support, including MAX6363LUT29+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6363LUT29+T requirements.
6.How does Aetrix verify that MAX6363LUT29+T is sourced from the original manufacturer or authorized distributors?
All MAX6363LUT29+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 MAX6363LUT29+T meets industry standards.
7.What is the process for return or replacement of MAX6363LUT29+T?
All MAX6363LUT29+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6363LUT29+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 MAX6363LUT29+T part is unused and in its original packaging.
Return procedure for MAX6363LUT29+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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