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Analog Devices Inc./Maxim Integrated MAX6363LUT46+T
- Part No.:
- MAX6363LUT46+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6363LUT46+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
MAX6363LUT46+T from Maxim Integrated is a low-power microprocessor supervisory circuit with battery switchover and BATT ON status indication, designed for systems requiring reliable power monitoring and SRAM backup during brownout. It features a factory-preset 4.63V reset threshold, operates from +1.2V supply, guarantees RESET/RESET validity down to 1.2V, and delivers 150ms minimum reset timeout. It is used in portable/battery-powered equipment to maintain SRAM data integrity during main supply failure.
For engineers reviewing the MAX6363LUT46+T datasheet, MAX6363LUT46+T pinout, MAX6363LUT46+T application, or MAX6363LUT46+T equivalent, key selection considerations include its active-low push-pull reset output, 4.63V precision reset threshold, battery-on indicator functionality, SOT23-6 package compatibility, and guaranteed operation at VCC/VBATT ≥1.2V.
Technical Context
The MAX6363LUT46+T implements a precision voltage monitor with ±1.5% threshold accuracy over temperature, internal hysteresis for noise immunity, and automatic battery switchover logic that engages only when both VCC falls below 4.63V *and* VBATT exceeds VCC by ≥20mV. Its BATT ON output asserts high exclusively in validated battery-backup mode, not merely on VBATT presence.
It integrates a low-leakage (≤0.05µA) battery standby path, 150ms reset timeout with monotonic delay vs. temperature, and robust transient immunity-capable of rejecting 30µs transients 100mV below VTH. The device uses BiCMOS process for stable performance across –40°C to +85°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 4.63V (factory preset, ±1.5% accuracy over –40°C to +85°C) |
| Supply Voltage Range | +1.2V to +5.5V (VCC or VBATT; enables operation from single-cell Li-ion or coin cell) |
| Reset Timeout Period | 150ms minimum (ensures µP completes power-up initialization before release) |
| Supply Current (VCC) | 15µA typical at VCC = 5.5V (ultra-low quiescent current preserves battery life) |
| Battery Standby Current | 0.05µA max at –40°C to +85°C (minimizes drain on backup battery during long-term storage) |
| Output Type | Active-low push-pull RESET (no external pull-up required; drives µP reset directly) |
| BATT ON Function | Dedicated open-drain output asserted high only when VCC < VTH *and* VBATT > VCC + 20mV (true battery-backup mode indicator) |
Pinout & Package
Package: 6-pin SOT23 (U6-1, outline 21-0058), RoHS-compliant, lead-free (+T suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - RESET | Active-low push-pull reset output | Drives µP reset input directly; no external pull-up needed; valid down to 1.2V supply |
| 2 - GND | Ground reference | Common return for VCC, VBATT, and all internal circuitry; 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; reset asserted when VCC falls below 4.63V; powers internal circuitry |
| 5 - OUT | Power output | Switches between VCC and VBATT; sources up to 150mA from VCC, up to 10mA from battery |
| 6 - BATT | Backup battery input | Connects to backup cell; internal MOSFET switches to OUT only when VCC < VTH and VBATT > VCC + 20mV |
Key Features
| Feature | Design Value |
|---|---|
| Precision 4.63V reset threshold | ±1.5% tolerance over full temperature range ensures accurate detection of +5V rail collapse |
| Battery-on status indicator | Dedicated BATT ON output confirms *active* battery-backup mode-not just battery presence |
| True dual-supply operation | Valid operation with VCC ≥1.2V *or* VBATT ≥1.2V (enables cold-start from battery alone after VCC loss) |
| Low 0.05µA battery standby current | Extends shelf life of backup cells in long-idle applications like smart meters or security sensors |
| 150ms monotonic reset timeout | Guaranteed minimum delay prevents premature µP release during slow-rising VCC ramps |
Applications
| Portable Medical Devices | Industrial Data Loggers |
|---|---|
Use Scenario: Continuous ECG monitoring unit powered by rechargeable Li-ion, with SRAM storing waveform history during AC power loss. IC Role / Device Role / Timing Role: Supervisory IC providing VCC brownout detection, automatic SRAM power switchover to backup battery, and BATT ON signal to firmware for low-power state transition. Use Value: Prevents SRAM data corruption during 100ms–500ms grid interruptions; BATT ON signal triggers firmware to suspend non-critical tasks and extend battery runtime. | Use Scenario: Remote environmental sensor node logging temperature/humidity to SRAM, deployed in unattended field locations with intermittent solar charging. IC Role / Device Role / Timing Role: Power supervisor ensuring clean µP reset on startup and maintaining SRAM retention via battery switchover during solar panel shading events. Use Value: Enables >10-year deployment without data loss; 0.05µA battery leakage extends 3.6V lithium thionyl chloride cell life beyond 5 years in sleep mode. |
| POS Terminals | Smart Utility Meters |
Use Scenario: Retail point-of-sale terminal with flash memory and real-time clock, requiring transaction rollback protection during sudden AC dropout. IC Role / Device Role / Timing Role: Reset generator and power switcher asserting µP reset while seamlessly transferring SRAM power to backup capacitor or coin cell. Use Value: Guarantees atomic transaction commit before reset; 150ms timeout accommodates slow-rising 5V rail from hold-up capacitors. | Use Scenario: Electricity meter with metrology ASIC and tamper-detection SRAM, operating 24/7 on mains with supercapacitor backup. IC Role / Device Role / Timing Role: Brownout detector and battery switchover controller enabling uninterrupted timekeeping and event logging during grid outages. Use Value: Maintains accurate billing timestamps; BATT ON output disables RF transmission during backup to conserve energy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6363HUT46+T | Same 4.63V threshold and BATT ON function, but active-low open-drain RESET output (requires external pull-up) | Suitable where µP reset input is open-drain compatible or board layout already includes pull-up resistor | Select when system-level reset signaling requires wired-OR capability or level translation |
| TPS3808G33DBVR | 3.3V fixed reset threshold, no battery switchover or BATT ON output; 350ms timeout; 2.9µA supply current | Applicable only for basic reset generation on 3.3V rails without backup power management | Choose only if battery backup is handled externally and precise 4.63V threshold is not required |
Compared with MAX6363HUT46+T, the MAX6363LUT46+T eliminates external pull-up components and simplifies PCB layout; versus TPS3808G33DBVR, it provides critical battery switchover and status indication essential for SRAM-retention systems, despite higher quiescent current.
Availability
MAX6363LUT46+T is available at Aetrix Electronics and suitable for portable medical devices, industrial data loggers, POS terminals, and smart utility meters requiring stable component supply, long-term lifecycle support, and guaranteed RoHS-compliant sourcing.
Supply support for MAX6363LUT46+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, mixed-signal, and power management ICs for demanding industrial, automotive, and computing applications.
The MAX6361–MAX6364 product line targets ultra-low-power microprocessor supervision in battery-backed systems, emphasizing precision voltage monitoring, seamless power switchover, and minimal standby current for extended offline operation.
FAQ
What is the exact reset threshold voltage of the MAX6363LUT46+T?
The MAX6363LUT46+T has a factory-preset reset threshold of 4.63V, with guaranteed accuracy of ±1.5% over the full operating temperature range of –40°C to +85°C. This value is laser-trimmed during production and does not require external adjustment. The "46" suffix in MAX6363LUT46+T explicitly denotes this 4.63V threshold per Maxim's ordering guide.
Does the MAX6363LUT46+T support true battery-backup mode with automatic switchover?
Yes, the MAX6363LUT46+T supports true battery-backup mode. It automatically switches the OUT pin from VCC to VBATT only when two conditions are met simultaneously: VCC falls below 4.63V *and* VBATT exceeds VCC by at least 20mV. This hysteresis prevents oscillation during slow VCC decay. The BATT ON output goes high exclusively in this validated backup state.
What type of reset output does the MAX6363LUT46+T provide?
The MAX6363LUT46+T provides an active-low push-pull RESET output. Unlike open-drain variants, it does not require an external pull-up resistor and can directly drive standard µP reset inputs. The output remains low during reset assertion and transitions high with full rail-to-rail swing when released, ensuring robust noise immunity.
Can the MAX6363LUT46+T operate with supply voltages below 2.0V?
Yes, the MAX6363LUT46+T is fully specified to operate with supply voltages as low as +1.2V on either VCC or VBATT. Its internal circuitry-including the reset comparator, BATT ON logic, and push-pull driver-remains functional and guaranteed down to 1.2V, enabling use with single-cell LiFePO₄ or NiMH batteries.
How does the BATT ON output behave in the MAX6363LUT46+T?
The BATT ON output in the MAX6363LUT46+T is an open-drain signal that pulls high only when the device is confirmed in battery-backup mode-i.e., when VCC < 4.63V *and* VBATT > VCC + 20mV. It remains low during normal VCC operation, during VCC brownout without sufficient VBATT margin, and during startup. This provides unambiguous firmware visibility into actual backup power engagement.
MAX6363LUT46+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Battery Backup Circuit
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 4.63V
- 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
MAX6363LUT46+T FAQ
1.How can I place an order for MAX6363LUT46+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6363LUT46+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 MAX6363LUT46+T reliable?
The price and inventory of MAX6363LUT46+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6363LUT46+T is usually 5 days.
3.What payment methods are accepted for MAX6363LUT46+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6363LUT46+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6363LUT46+T?
MAX6363LUT46+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6363LUT46+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 MAX6363LUT46+T?
For technical support, including MAX6363LUT46+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6363LUT46+T requirements.
6.How does Aetrix verify that MAX6363LUT46+T is sourced from the original manufacturer or authorized distributors?
All MAX6363LUT46+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 MAX6363LUT46+T meets industry standards.
7.What is the process for return or replacement of MAX6363LUT46+T?
All MAX6363LUT46+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6363LUT46+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 MAX6363LUT46+T part is unused and in its original packaging.
Return procedure for MAX6363LUT46+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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