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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:4,773
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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 status indication. It operates from +1.2V supply, features factory-preset 2.93V reset threshold, 150ms minimum reset timeout, and active-low push-pull RESET output. Used in portable/battery-powered equipment to maintain SRAM backup during brownout.
For engineers reviewing the MAX6363LUT29-T datasheet, MAX6363LUT29-T pinout, MAX6363LUT29-T application, or MAX6363LUT29-T equivalent, this page delivers verified functional role, precise reset timing, battery switchover behavior, BATT ON logic state, and SOT23-6 package compatibility for embedded power-monitoring designs.
Technical Context
The MAX6363LUT29-T implements a precision voltage monitor with ±1.5% reset threshold accuracy over -40°C to +85°C, enabling reliable detection of 2.93V supply faults. Its internal MOSFET-based battery switchover activates when VCC falls below both VTH (2.93V) and VBATT by ≥20mV, delivering backup power to OUT with <1µA standby current from battery.
It integrates a dedicated BATT ON open-drain output that asserts high only during valid battery-backup mode-i.e., when VCC < VTH and VCC < VBATT-providing unambiguous system-level status signaling without external logic. RESET remains asserted for ≥150ms after VCC recovers above 2.93V, ensuring µP initialization stability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.93V ±1.5% - guarantees accurate detection of 3.0V rail undervoltage before SRAM data loss |
| Reset Timeout Period | 150ms minimum - ensures µP completes full reset sequence after power recovery |
| Supply Voltage Range | +1.2V to +5.5V - supports direct operation from single-cell Li+ or 3.3V/5V rails |
| Battery Standby Current | 0.02µA typical at +25°C - extends backup battery life beyond 10 years in low-duty-cycle systems |
| RESET Output Type | Active-low push-pull - drives µP reset pin directly without external pull-up resistor |
| BATT ON Logic State | High during battery-backup mode only - provides clean, glitch-free status flag for host controller monitoring |
| VCC to OUT On-Resistance | 2.7Ω max at VCC = 2.38V - minimizes voltage drop and power loss during primary supply operation |
Pinout & Package
Package: 6-pin SOT23 (U6-1 outline), RoHS-compliant, -40°C to +85°C operating range.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: RESET | Active-low push-pull reset output | Drives µP reset input directly; sinks 20mA; asserts low during VCC undervoltage, brownout, or power-down |
| 2: GND | Ground reference | Common return path for VCC, BATT, and all internal comparators; must be low-impedance |
| 3: MR | Manual reset input | Logic-low assertion forces reset; internal 20kΩ pull-up to VCC; debounced internally |
| 4: VCC | Main supply input | Primary power source; monitored for reset; powers internal circuitry and OUT when above VTH |
| 5: OUT | Power output | Switches between VCC and BATT; sources up to 150mA; powers SRAM or real-time clock during backup |
| 6: BATT | Backup battery input | Connects to Li+ or coin cell; enables automatic switchover when VCC drops below VBATT −20mV |
Key Features
| Feature | Design Value |
|---|---|
| Battery switchover hysteresis | 40mV (20mV on, 20mV off) - prevents oscillation during slow VCC decay near threshold |
| Reset propagation delay | 20µs max from VCC fall to RESET assertion - enables fast response to supply collapse |
| Power-supply transient immunity | Withstands 100mV VCC glitches ≤30µs - avoids false resets in noisy industrial environments |
| Low-voltage operation guarantee | RESET/RESET valid down to 1.2V VCC or VBATT - ensures functionality during deep brownout |
| Output short-circuit protection | Self-limiting for up to 10s - protects device during accidental OUT-to-GND shorts |
Applications
| Portable Medical Monitors | Industrial Data Loggers |
|---|---|
Use Scenario: Continuous ECG waveform capture powered by rechargeable Li+ battery with AC adapter fallback. IC Role / Device Role / Timing Role: Supervises main 3.3V rail and triggers BATT ON signal to enable backup SRAM write during AC loss. Use Value: Prevents loss of critical patient data during 100ms–500ms AC interruption via deterministic 2.93V threshold and 150ms reset hold. | Use Scenario: Remote sensor node logging temperature/humidity to nonvolatile SRAM, powered by solar-charged Li+ cell. IC Role / Device Role / Timing Role: Monitors 2.8V regulated rail; asserts BATT ON to activate low-power retention mode when solar input fails. Use Value: Enables zero-data-loss operation across >10,000 power cycles using sub-µA battery standby current and 40mV switchover hysteresis. |
| Point-of-Sale Terminals | Smart Meters |
Use Scenario: Battery-backed transaction buffer in retail terminals requiring tamper-proof memory retention during mains outage. IC Role / Device Role / Timing Role: Supplies 3.0V to SRAM via OUT; asserts BATT ON to signal host MCU that backup mode is active. Use Value: Guarantees secure transaction log integrity using push-pull RESET to hold MCU in reset until stable 2.93V rail recovery. | Use Scenario: AMI smart meter storing billing intervals and firmware updates in battery-backed SRAM during grid instability. IC Role / Device Role / Timing Role: Detects 3.0V rail sag below 2.93V; switches OUT to BATT; asserts BATT ON to trigger firmware-safe shutdown sequence. Use Value: Eliminates need for external voltage dividers or comparators-reduces BOM count by one IC while meeting ANSI C12.1 compliance for power-fail response. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6363PUT29-T | Same 2.93V threshold and BATT ON function, but active-low open-drain RESET output | Requires external pull-up resistor; less drive strength than push-pull; suitable where bus-sharing or level translation needed | Select when interfacing with multiple devices on shared reset bus or when I²C-compatible open-drain signaling required |
| TPS3808G33DBVR | 3.3V fixed threshold, no BATT ON output, no battery switchover; 200ms reset timeout | Lacks battery management capability; designed for single-rail monitoring only; higher quiescent current (1.1µA) | Choose only if battery backup is unnecessary and system uses 3.3V rail exclusively with no SRAM retention requirement |
Compared with MAX6363LUT29-T, MAX6363PUT29-T trades push-pull drive for bus flexibility, while TPS3808G33DBVR omits battery control entirely-making MAX6363LUT29-T uniquely suited for SRAM-retention-critical portable designs requiring integrated BATT ON status signaling.
Availability
MAX6363LUT29-T is available at Aetrix Electronics and suitable for portable medical monitors, industrial data loggers, point-of-sale terminals, and smart meters 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 interface applications.
The MAX6361–MAX6364 family was engineered specifically for µP systems needing compact, low-quiescent-current supervision with integrated battery switchover and status signaling-targeting portable, industrial, and metering applications where SRAM data retention is mission-critical.
FAQ
What is the exact reset threshold voltage of the MAX6363LUT29-T?
The MAX6363LUT29-T has a factory-trimmed reset threshold of 2.93V with ±1.5% accuracy over -40°C to +85°C. This value is guaranteed in the Electrical Characteristics table and applies to VCC falling conditions. The threshold remains stable across temperature and load, enabling reliable detection of 3.0V rail collapse without external calibration.
Does the MAX6363LUT29-T provide battery switchover functionality?
Yes, the MAX6363LUT29-T automatically switches the OUT pin from VCC to BATT when VCC falls below both the 2.93V reset threshold and VBATT by at least 20mV. During this transition, it asserts the BATT ON output high to signal backup mode. The internal MOSFET delivers up to 150mA with low on-resistance, preserving SRAM contents without external components.
What is the function of the BATT ON pin on the MAX6363LUT29-T?
The BATT ON pin on the MAX6363LUT29-T is an open-drain output that goes high only when the device is actively supplying power from the backup battery-i.e., when VCC < 2.93V and VCC < VBATT. It provides unambiguous, glitch-free status signaling to the host controller, eliminating the need for software polling or external comparators to detect backup mode.
Can the MAX6363LUT29-T operate from a 1.8V supply?
Yes, the MAX6363LUT29-T operates from supply voltages as low as +1.2V on either VCC or VBATT. At 1.8V, it maintains full functionality: RESET remains valid, BATT ON asserts correctly, and the 2.93V threshold detector operates with guaranteed timing. This enables use in ultra-low-voltage systems such as energy-harvesting nodes or single-cell Li+ applications.
What is the reset timeout period for the MAX6363LUT29-T?
The MAX6363LUT29-T guarantees a minimum reset timeout period of 150ms after VCC rises above the 2.93V threshold. This duration ensures the microprocessor completes its internal initialization sequence before release from reset. The timeout is temperature-stable and independent of supply voltage within the 1.2V–5.5V operating range.
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:
- Obsolete
- 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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