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Analog Devices Inc./Maxim Integrated MAX6363PUT23+
- Part No.:
- MAX6363PUT23+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6363PUT23+.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:4,722
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Product details
Overview
MAX6363PUT23+ 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 2.32V reset threshold, delivers 150ms minimum reset timeout, and provides active-low open-drain RESET output. It is used in portable/battery-powered equipment to maintain SRAM integrity during power failure.
For engineers reviewing the MAX6363PUT23+ datasheet, MAX6363PUT23+ pinout, MAX6363PUT23+ application, or MAX6363PUT23+ equivalent, key selection criteria include guaranteed reset assertion down to 1.2V, battery-on output signaling, precision 2.32V threshold tolerance (±15mV), SOT23-6 package compatibility, and support for backup-battery switchover with 40mV hysteresis.
Technical Context
The MAX6363PUT23+ integrates a precision voltage monitor, battery switchover MOSFET, and dedicated BATT ON output. Its internal comparator compares VCC against a factory-trimmed 2.32V threshold with ±15mV accuracy over temperature, and asserts RESET when VCC falls below this level. The device automatically connects BATT to OUT when VCC drops below VBATT − 0.2V, enabling seamless RAM backup.
BATT ON output transitions high only in verified battery-backup mode-i.e., when VCC is both below the 2.32V threshold and at least 20mV lower than VBATT. This dual-condition logic prevents false battery-on assertions during transient brownouts or startup. The 150ms reset timeout period is guaranteed independent of supply voltage down to 1.2V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.32V ±15mV - ensures reliable detection of 2.5V rail collapse before system instability |
| Reset Timeout Period | 150ms minimum - guarantees µP reset hold time sufficient for full power-up initialization |
| Supply Voltage Range | +1.2V to +5.5V - supports operation directly from single-cell Li+ or NiMH batteries |
| Supply Current (VCC) | 10µA typical at 2.8V - enables multi-year battery life in always-on monitoring applications |
| Battery Standby Current | 0.02µA typical - minimizes drain on backup cell during extended storage or standby |
| Output Type | Active-low open-drain RESET - allows wired-OR configuration and flexible pull-up voltage selection |
| BATT ON Logic | High only when VCC < VTH and VCC < (VBATT − 0.2V) - eliminates false positives during slow VCC ramps |
Pinout & Package
Package: 6-pin SOT23 (U6-1 outline, 21-0058). RoHS-compliant lead-free construction with + suffix.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: RESET | Active-low open-drain reset output | Asserts low during VCC undervoltage, manual reset, or watchdog timeout; requires external pull-up |
| 2: GND | Ground reference | Common return path for all internal circuits and output sink current |
| 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 threshold violation; powers internal circuitry |
| 5: OUT | Power output | Switches between VCC and BATT based on voltage comparison; supplies up to 150mA |
| 6: BATT | Backup battery input | Provides backup power to OUT when VCC fails; enables BATT ON assertion |
Key Features
| Feature | Design Value |
|---|---|
| Battery-On Output Indicator | Dedicated BATT ON pin signals confirmed battery-backup mode-not just low VCC-preventing spurious system wakeups |
| Guaranteed 1.2V Operation | RESET/RESET valid down to 1.2V supply ensures functional reset assertion even as primary rail collapses |
| 40mV Switchover Hysteresis | Prevents oscillation during slow VCC recovery by requiring 20mV rise above VBATT before switching back from battery |
| 150ms Minimum Reset Timeout | Ensures µP completes power-on reset sequence before release, regardless of VCC ramp rate |
| Low 10µA Supply Current | Enables integration into ultra-low-power IoT edge nodes without compromising battery runtime |
Applications
| Portable Medical Monitors | Industrial Data Loggers |
|---|---|
Use Scenario: Continuous ECG or glucose monitoring devices powered by coin-cell batteries with optional rechargeable backup. IC Role / Device Role / Timing Role: Supervisory circuit monitors main supply, triggers reset on brownout, and activates BATT ON to signal backup engagement to host MCU. Use Value: Prevents data loss during battery swap or primary supply interruption while providing unambiguous battery-active status for firmware logging. | Use Scenario: Remote environmental sensors logging temperature/humidity to flash memory during intermittent solar charging cycles. IC Role / Device Role / Timing Role: Ensures clean µP reset during solar panel voltage sag and maintains SRAM contents via battery switchover when main power dips below 2.32V. Use Value: Guarantees 150ms reset hold time for safe flash write completion and uses BATT ON to gate backup power usage only when strictly necessary. |
| POS Terminals with Backup RAM | Smart Meters with Tamper Detection |
Use Scenario: Retail point-of-sale terminals using SRAM for transaction buffering, backed by supercapacitor or lithium battery. IC Role / Device Role / Timing Role: Provides precise 2.32V reset threshold aligned with 2.5V logic rails and asserts BATT ON to enable backup power path only when VCC falls below both threshold and VBATT. Use Value: Eliminates false battery activation during brief line noise, extending backup cell life while ensuring deterministic RAM retention during AC outage. | Use Scenario: Utility smart meters requiring secure metering data retention during grid instability or physical tampering-induced power disruption. IC Role / Device Role / Timing Role: Monitors 3.3V supply with 2.32V threshold, asserts RESET to halt processor execution, and drives BATT ON to activate secure nonvolatile SRAM backup. Use Value: Meets IEC 62053-21 tamper-response timing requirements with guaranteed 150ms reset pulse and validated battery engagement logic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar µP supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6363HUT23+ | Same 2.32V threshold, but offered in higher-temp grade (−40°C to +125°C) and different marking code (AAGH vs AAGT) | Targeted for under-hood automotive or industrial environments exceeding +85°C ambient | Select MAX6363HUT23+ only if extended temperature qualification is required; otherwise MAX6363PUT23+ meets standard commercial range |
| TPS3808G12DBVR | 2.93V fixed threshold, 350ms reset timeout, 1.8V–6.0V supply range, no BATT ON output | Lacks battery switchover control and status indication; suited for simple reset-only applications | Choose TPS3808G12DBVR only when battery backup is unnecessary and higher reset threshold aligns with 3.3V system margin |
Compared with MAX6363HUT23+, the MAX6363PUT23+ offers identical electrical performance in the −40°C to +85°C range at lower cost and standard temperature qualification; compared with TPS3808G12DBVR, it provides unique BATT ON signaling and tighter 2.32V threshold for 2.5V rail monitoring, but requires explicit battery management design.
Availability
MAX6363PUT23+ is available at Aetrix Electronics and suitable for portable medical monitors, industrial data loggers, POS terminals, smart meters, and battery-backed SRAM applications requiring stable component supply across production lifecycles.
Supply support for MAX6363PUT23+ 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 in industrial, computing, and communications systems.
The MAX6361–MAX6364 family was engineered specifically for µP systems needing integrated power monitoring, battery switchover, and status signaling in space-constrained portable equipment.
FAQ
What is the exact reset threshold voltage of the MAX6363PUT23+?
The MAX6363PUT23+ has a factory-preset reset threshold of 2.32V with ±15mV tolerance over the −40°C to +85°C temperature range. This value is laser-trimmed during production and specified in the Electrical Characteristics table under "Reset Threshold" for the UT23 suffix. The threshold remains stable across supply voltages from 1.2V to 5.5V.
Does the MAX6363PUT23+ provide battery switchover functionality?
Yes, the MAX6363PUT23+ provides automatic battery switchover: when VCC falls below the 2.32V reset threshold and also drops at least 20mV below VBATT, the internal MOSFET connects BATT to OUT. The device maintains this state until VCC rises 20mV above VBATT, providing 40mV hysteresis to prevent chattering during slow recovery.
What does the BATT ON output indicate on the MAX6363PUT23+?
The BATT ON output on the MAX6363PUT23+ goes high only when two conditions are simultaneously met: VCC is below the 2.32V reset threshold AND VCC is at least 20mV lower than VBATT. This dual-condition logic confirms true battery-backup mode-not just low VCC-enabling firmware to reliably detect and log backup power engagement.
Can the MAX6363PUT23+ operate from a 1.2V supply?
Yes, the MAX6363PUT23+ guarantees full functionality-including RESET assertion, BATT ON signaling, and switchover control-down to a 1.2V supply voltage. Its internal circuitry is designed for ultra-low-voltage operation, and the RESET output remains valid even as VCC collapses to 1.2V, ensuring robust reset behavior during deep brownouts.
What package type and footprint does the MAX6363PUT23+ use?
The MAX6363PUT23+ uses a 6-pin SOT23 package (outline U6-1, land pattern 90-0175), with RoHS-compliant lead-free construction indicated by the "+" suffix. Its compact 2.9mm × 1.6mm footprint and 1.1mm height make it suitable for dense portable PCB layouts, and the pinout matches standard SOT23-6 footprints used across Maxim's supervisory portfolio.
MAX6363PUT23+ 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:
- 2.32V
- Output:
- Open Drain or Open Collector
- 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
MAX6363PUT23+ FAQ
1.How can I place an order for MAX6363PUT23+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6363PUT23+ 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 MAX6363PUT23+ reliable?
The price and inventory of MAX6363PUT23+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6363PUT23+ is usually 5 days.
3.What payment methods are accepted for MAX6363PUT23+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6363PUT23+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6363PUT23+?
MAX6363PUT23+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6363PUT23+ 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 MAX6363PUT23+?
For technical support, including MAX6363PUT23+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6363PUT23+ requirements.
6.How does Aetrix verify that MAX6363PUT23+ is sourced from the original manufacturer or authorized distributors?
All MAX6363PUT23+ 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 MAX6363PUT23+ meets industry standards.
7.What is the process for return or replacement of MAX6363PUT23+?
All MAX6363PUT23+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6363PUT23+, 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 MAX6363PUT23+ part is unused and in its original packaging.
Return procedure for MAX6363PUT23+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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