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Analog Devices Inc./Maxim Integrated MAX6363LUT23+T
- Part No.:
- MAX6363LUT23+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6363LUT23+T.pdf
- Description:
- IC SUPERVISOR MPU LP SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:181
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Product details
Overview
MAX6363LUT23+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 operates from +1.2V supply, features a factory-preset 2.32V reset threshold, 150ms minimum reset timeout, and active-low push-pull reset output - used in portable instrumentation and industrial controllers to maintain data integrity during VCC failure.
For engineers reviewing the MAX6363LUT23+T datasheet, MAX6363LUT23+T pinout, MAX6363LUT23+T application, or MAX6363LUT23+T equivalent, key selection criteria include battery-on indicator functionality, guaranteed reset assertion down to 1.2V, SOT23-6 package compatibility, and precise 2.32V ±1.5% threshold tolerance over –40°C to +85°C.
Technical Context
The MAX6363LUT23+T implements a dual-path power switch: when VCC ≥ (VBATT + 20mV), OUT is sourced from VCC; when VCC falls below the 2.32V threshold and VBATT > VCC, an internal MOSFET connects BATT to OUT with typical on-resistance of 2.63Ω at 2.8V. Its BATT ON output asserts high only in validated battery-backup mode - not merely on VBATT presence.
This variant belongs to the MAX6363 series (battery-on output type) with LUT suffix indicating lead-free SOT23-6 packaging, 2.32V reset threshold, and active-low push-pull RESET output. It excludes manual reset (MR), watchdog input (WDI), or adjustable RESET IN - functions reserved for MAX6361/MAX6362/MAX6364 variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.32V ±1.5% - precisely monitors 2.5V/3.0V rails for undervoltage detection without external resistors |
| Reset Timeout Period | 150ms minimum - ensures µP remains held in reset long enough for stable power recovery |
| Supply Voltage Range | +1.2V to +5.5V - supports operation directly from Li+ battery or low-voltage logic rails |
| Battery Switchover Hysteresis | 40mV (20mV drop + 20mV rise) - prevents oscillation during slow VCC decay near threshold |
| Output Type | Active-low push-pull RESET - drives µP reset pin directly without external pull-up resistor |
| Operating Temperature | –40°C to +85°C - qualified for industrial and extended-temperature embedded applications |
| Quiescent Current | 15µA max at VCC = 5.5V - enables multi-year battery life in always-on backup systems |
Pinout & Package
Package: 6-pin SOT23 (U6-1 outline, 2.9mm × 1.6mm × 1.1mm height), RoHS-compliant lead-free (+T suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: RESET | Active-low push-pull reset output | Drives µP reset pin directly; sinks 20mA; valid down to VCC = 1.2V |
| 2: GND | Ground reference | Common return for VCC, BATT, and all internal comparators |
| 3: MR | Manual reset input | Not functional on MAX6363 - internally disconnected; leave unconnected or tie to VCC |
| 4: VCC | Main supply input | Primary power source; reset asserted when voltage falls below 2.32V |
| 5: OUT | Power output | Switches between VCC and BATT; sources up to 150mA from VCC, 10mA from BATT |
| 6: BATT | Backup battery input | Connects to Li+ or coin cell; enables SRAM retention when VCC fails |
Key Features
| Feature | Design Value |
|---|---|
| Battery-On Output Indicator | BATT ON pin asserts high only when device is actively sourcing OUT from BATT - confirms true backup mode, not just battery presence |
| Precision Reset Threshold | 2.32V ±1.5% over temperature - eliminates need for external trimming in 2.5V system monitoring |
| Guaranteed 1.2V Operation | RESET remains valid even as VCC decays to 1.2V - ensures clean reset assertion during deep brownout |
| Low-Power Battery Backup | BATT standby current ≤0.05µA at +85°C - extends shelf life of backup cells beyond 10 years |
| Transient Immunity | Rejects 30µs transients 100mV below threshold - prevents false resets from ESD or switching noise |
Applications
| Portable Medical Instrumentation | Industrial PLC I/O Modules |
|---|---|
Use Scenario: Handheld blood glucose meter retains calibration data and real-time clock during battery replacement. IC Role / Device Role / Timing Role: MAX6363LUT23+T monitors main Li+ supply and switches SRAM to backup cell while asserting BATT ON to signal backup activation. Use Value: Prevents data loss during hot-swap; BATT ON enables firmware to log backup entry and disable non-critical peripherals. |
Use Scenario: Remote I/O module maintains configuration EEPROM and CAN bus state during 24VDC power interruption. IC Role / Device Role / Timing Role: MAX6363LUT23+T detects 24V rail collapse, triggers µP reset, and powers critical latch circuits from backup supercap via OUT. Use Value: Enables deterministic restart within 150ms; push-pull RESET eliminates external pull-up, reducing BOM count. |
| Smart Energy Meters | Ruggedized POS Terminals |
Use Scenario: Electricity meter preserves tamper logs and billing cycle counters during grid outage. IC Role / Device Role / Timing Role: MAX6363LUT23+T senses AC/DC converter dropout, activates BATT ON, and sustains RTC/SRAM from coin cell. Use Value: Meets IEC 62053-21 data retention requirements; 2.32V threshold matches 2.5V RTC supply tolerance. |
Use Scenario: Retail terminal retains transaction buffer and secure key storage during mains failure. IC Role / Device Role / Timing Role: MAX6363LUT23+T monitors 5V DC-DC output, asserts RESET to halt processor, and powers secure element from backup. Use Value: Push-pull output guarantees reset timing compliance with EMV L2 certification; 150ms timeout satisfies PCI PTS 6.0 hold-time. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar µP supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6363LUT26+T | 2.63V reset threshold (vs. 2.32V); otherwise identical pinout, timing, and BATT ON function | Suitable for 2.7V/3.0V systems instead of 2.5V rails; same SOT23-6 footprint and thermal profile | Select when monitoring higher-voltage supplies; no PCB changes required if layout accommodates 2.32V–2.63V range |
| TPS3808G125DBVR | 2.5V threshold, 200ms timeout, open-drain RESET, no BATT ON output, 1.8V min supply | Lacks battery switchover and status indication; requires external MOSFET and pull-up for backup control | Choose only if BATT ON signal is unnecessary and system uses separate backup management; not drop-in compatible |
Compared with MAX6363LUT23+T, MAX6363LUT26+T offers identical functionality at a higher threshold for 2.7V systems, while TPS3808G125DBVR provides basic reset supervision without integrated battery control - making it unsuitable for SRAM retention designs requiring automatic switchover and status feedback.
Availability
MAX6363LUT23+T is available at Aetrix Electronics and suitable for portable medical instrumentation, industrial PLC I/O modules, smart energy meters, and ruggedized POS terminals requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6363LUT23+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 in industrial, automotive, and communications markets.
The MAX6363LUT23+T belongs to the MAX6361–MAX6364 family of SOT23 supervisory circuits engineered specifically for battery-backed µP systems requiring guaranteed reset assertion, seamless power switchover, and status indication - not general-purpose voltage monitoring.
FAQ
What is the exact reset threshold voltage of the MAX6363LUT23+T?
The MAX6363LUT23+T has a factory-trimmed reset threshold of 2.32V, with guaranteed tolerance of ±1.5% over the full –40°C to +85°C operating temperature range. This value is laser-trimmed during production and does not require external calibration. The MAX6363LUT23+T datasheet specifies 2.25V (min), 2.32V (typ), and 2.38V (max) at +25°C, with tighter bounds maintained across temperature.
Does the MAX6363LUT23+T provide battery switchover functionality?
Yes, the MAX6363LUT23+T automatically switches the OUT pin from VCC to BATT when VCC falls below the 2.32V reset threshold and VBATT exceeds VCC by at least 20mV. It maintains this connection until VCC rises 20mV above VBATT, providing 40mV hysteresis to prevent chattering. The MAX6363LUT23+T also asserts the BATT ON output high exclusively during active battery-backup operation.
What is the function of the MR pin on the MAX6363LUT23+T?
The MR (manual reset) pin on the MAX6363LUT23+T is not functional - it is internally disconnected per the MAX6363 product definition. Unlike the MAX6361 variant, the MAX6363LUT23+T does not support manual reset initiation. The pin should be left floating or tied to VCC; driving it has no effect on reset behavior.
Can the MAX6363LUT23+T operate with a 1.2V supply?
Yes, the MAX6363LUT23+T guarantees full functionality down to VCC = 1.2V, including valid RESET output assertion and BATT ON signaling. Its internal comparators and output drivers remain operational at this voltage, enabling use in ultra-low-power systems powered directly by single-cell Li+ batteries or energy-harvesting sources.
What package type and RoHS status does the MAX6363LUT23+T use?
The MAX6363LUT23+T uses a 6-pin SOT23 package (outline U6-1) with lead-free termination, indicated by the "+T" suffix. It complies with RoHS Directive 2011/65/EU and JEDEC J-STD-020 moisture sensitivity level 1. The package measures 2.9mm × 1.6mm × 1.1mm and is compatible with standard SOT23 reflow profiles.
MAX6363LUT23+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Strip
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Battery Backup Circuit
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.32V
- 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
MAX6363LUT23+T FAQ
1.How can I place an order for MAX6363LUT23+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6363LUT23+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 MAX6363LUT23+T reliable?
The price and inventory of MAX6363LUT23+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6363LUT23+T is usually 5 days.
3.What payment methods are accepted for MAX6363LUT23+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6363LUT23+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6363LUT23+T?
MAX6363LUT23+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6363LUT23+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 MAX6363LUT23+T?
For technical support, including MAX6363LUT23+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6363LUT23+T requirements.
6.How does Aetrix verify that MAX6363LUT23+T is sourced from the original manufacturer or authorized distributors?
All MAX6363LUT23+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 MAX6363LUT23+T meets industry standards.
7.What is the process for return or replacement of MAX6363LUT23+T?
All MAX6363LUT23+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6363LUT23+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 MAX6363LUT23+T part is unused and in its original packaging.
Return procedure for MAX6363LUT23+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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