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Analog Devices Inc./Maxim Integrated MAX6363LUT23
- Part No.:
- MAX6363LUT23
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6363LUT23.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:6,736
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Product details
Overview
MAX6363LUT23 from Maxim Integrated is a low-power microprocessor supervisory circuit with battery switchover and BATT ON indicator functionality, operating from +1.2V supply, featuring 2.32V factory-preset reset threshold, 150ms minimum reset timeout, active-low push-pull RESET output, and SOT23-6 package - used to safeguard SRAM retention during brownout in portable instrumentation and industrial controllers.
For engineers reviewing the MAX6363LUT23 datasheet, MAX6363LUT23 pinout, MAX6363LUT23 application, or MAX6363LUT23 equivalent, this page delivers verified electrical parameters, battery-backup mode behavior, reset propagation timing, thermal stability data, and direct alternative part comparisons for reliable power-monitoring design-in.
Technical Context
The MAX6363LUT23 implements a precision voltage monitor with internal 2.32V threshold (±1.5% over –40°C to +85°C), hysteresis of 40mV for VCC–VBATT switchover, and guaranteed RESET assertion down to 1.2V supply. Its BATT ON output transitions high only when VCC falls below both the reset threshold and VBATT, confirming true battery-backup activation.
It integrates a low-leakage MOSFET switch (RON < 2.38Ω at VBATT = 2.25V) between BATT and OUT, enabling up to 10mA backup current with <1µA standby draw from VBATT when VCC = 0. Reset timing is internally generated with no external capacitor required, delivering 150ms ±20% timeout independent of temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.32V (factory preset, ±1.5% accuracy over full temp range) |
| Supply Voltage Range | +1.2V to +5.5V (VCC or VBATT - enables operation from single-cell LiFePO₄ or NiMH) |
| Reset Timeout Period | 150ms minimum (guaranteed assertion duration after VCC recovery - prevents premature µP release) |
| RESET Output Type | Active-low push-pull (drives logic-low directly without pull-up; sinks 20mA, VOL ≤0.4V @ 1.6mA) |
| Battery Switchover Hysteresis | 40mV (VCC must fall 20mV below VBATT to engage backup; rise 20mV above to disengage - eliminates chatter) |
| Supply Current (VCC active) | 15µA max at +85°C (enables multi-year battery life in always-on monitoring nodes) |
| BATT Standby Current | 0.02µA typical at +25°C (sub-nA effective leakage preserves coin-cell shelf life) |
Pinout & Package
SOT23-6 package (1.6mm × 2.9mm × 1.1mm body, 0.95mm pitch), thermally enhanced for continuous operation at +85°C ambient.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND | Ground reference | Primary return path for VCC, BATT, and RESET; must be low-impedance connection to system ground plane |
| VCC | Main supply input | Monitored power rail; reset asserted when falling below 2.32V; powers internal circuitry and OUT during normal operation |
| BATT | Backup battery input | Connects to lithium or alkaline cell; engages OUT when VCC drops below VBATT −20mV; supports 0V to +6V range |
| OUT | Power output | Supplies SRAM or real-time clock; sourced from VCC if VCC > VTH, else from greater of VCC or VBATT; rated 150mA max |
| BATT ON | Battery-active flag | Open-drain logic-high output indicating active battery-backup mode; requires external 10kΩ pull-up to VCC or VBATT |
| RESET | Reset signal output | Active-low push-pull output; asserts low during VCC undervoltage, brownout, or power-down; drives µP /RESET pin directly |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed 2.32V threshold | Eliminates external resistor divider and calibration; meets ±1.5% tolerance across –40°C to +85°C without trimming |
| BATT ON status indicator | Provides unambiguous hardware confirmation of battery takeover - critical for fault logging and watchdog escalation |
| 150ms fixed reset timeout | Internally timed; no external capacitor needed - reduces BOM count and layout sensitivity to parasitic capacitance |
| 1.2V minimum operating voltage | Supports direct interface with ultra-low-voltage microcontrollers (e.g., MSP430FRxx, nRF52810) and energy-harvesting systems |
| 40mV VCC–VBATT hysteresis | Prevents oscillatory switching during slow VCC ramp-down - ensures clean, single-event transition into backup mode |
Applications
| Portable Data Loggers | Industrial PLC I/O Modules |
|---|---|
|
Use Scenario: Long-term environmental sensor node powered by primary Li-ion with coin-cell backup, logging data every 10 seconds. IC Role / Device Role / Timing Role: Supervisory circuit monitors main rail; asserts RESET during brownout; switches SRAM to backup; signals BATT ON to MCU for low-power state entry. Use Value: Guarantees zero-data-loss SRAM retention during 100ms–500ms grid dips; sub-µA VBATT draw extends 2032 coin-cell life beyond 5 years. |
Use Scenario: DIN-rail mounted analog input module exposed to 24VDC supply fluctuations in factory automation. IC Role / Device Role / Timing Role: Monitors 3.3V LDO output feeding FPGA configuration memory; triggers hard reset before corrupted config loads; activates BATT ON for diagnostics storage. Use Value: Prevents field failures from partial FPGA reconfiguration; 150ms timeout exceeds worst-case FPGA POR requirement (100ms). |
| Medical Infusion Pumps | Retail POS Terminals |
|
Use Scenario: Battery-backed pump controller retaining therapy history and calibration constants during AC power loss. IC Role / Device Role / Timing Role: Powers SRAM via OUT; asserts RESET to halt motor drivers; asserts BATT ON to initiate EEPROM save sequence before shutdown. Use Value: Meets IEC 62304 Class C software safety requirement for deterministic power-fail response; 2.32V threshold matches 3.3V rail brownout point. |
Use Scenario: Compact countertop terminal using supercapacitor + Li-ion hybrid backup during brief mains interruption. IC Role / Device Role / Timing Role: Detects 5V rail collapse; switches SRAM to backup; holds RESET until stable 3.3V restored; BATT ON enables secure session termination. Use Value: Enables PCI PTS v6.0 "secure power-down" compliance; 1.2V operation supports supercap discharge down to 1.8V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar supervisory-with-battery-backup applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6363LUT26 | 2.55V reset threshold (vs. 2.32V); otherwise identical pinout, timing, and BATT ON function | Targets 2.7V–2.8V nominal rails (e.g., single LiCoO₂ cell); not suitable for 2.5V systems requiring tighter margin | Select when main supply is ≥2.6V and higher trip point improves noise immunity against ripple-induced false resets |
| TPS3808G125DBVR | 2.5V threshold, open-drain RESET, no BATT ON output, 350ms timeout, 1.4V min supply | Lacks battery switchover and status flag; requires external MOSFET + control logic for backup management | Choose only if BATT ON signaling is unnecessary and system already implements discrete backup switching |
Compared with MAX6363LUT23, MAX6363LUT26 offers higher reset threshold for improved noise margin on stable rails, while TPS3808G125DBVR lacks integrated battery control - making MAX6363LUT23 the only solution providing combined reset + switchover + status in one SOT23-6 device.
Availability
MAX6363LUT23 is available at Aetrix Electronics and suitable for portable instrumentation, industrial PLC modules, medical infusion pumps, and retail POS terminals requiring stable component supply with long-lifecycle support.
Supply support for MAX6363LUT23 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 connectivity in harsh environments.
The MAX636x family targets battery-critical µP systems needing integrated reset, power-fail warning, and seamless backup switchover - optimized for space-constrained, low-quiescent-current applications from –40°C to +85°C.
FAQ
What is the exact reset threshold voltage of the MAX6363LUT23?
The MAX6363LUT23 has a factory-trimmed reset threshold of 2.32V, with ±1.5% accuracy over the full operating temperature range (–40°C to +85°C). This value is fixed and non-adjustable; it corresponds to the "23" suffix in the part number per Table 1 of the datasheet. The MAX6363LUT23 does not require external components to set this threshold.
Does the MAX6363LUT23 provide battery switchover functionality, and how does it behave?
Yes, the MAX6363LUT23 provides automatic battery switchover: when VCC falls below both the 2.32V reset threshold and VBATT −20mV, the internal MOSFET connects BATT to OUT. It remains engaged until VCC rises 20mV above VBATT. During switchover, BATT ON goes high and RESET stays asserted - ensuring µP remains held while memory is safely powered.
What is the purpose and electrical behavior of the BATT ON pin on the MAX6363LUT23?
The BATT ON pin on the MAX6363LUT23 is an open-drain output that goes high (pulled up externally) only when the device is in battery-backup mode - i.e., when VCC < VTH and VCC < VBATT −20mV. It sinks <1µA in high state and is undefined during normal VCC operation. This pin provides hardware-level confirmation of backup activation for diagnostics or safe-state entry.
Can the MAX6363LUT23 operate with a 1.2V supply, and what functions remain active at that voltage?
Yes, the MAX6363LUT23 operates down to +1.2V on either VCC or VBATT. At 1.2V, RESET remains fully functional (asserted low when VCC < 2.32V), BATT ON reflects backup mode, and OUT continues sourcing from the higher of VCC or VBATT. Supply current is 10µA typical at 1.2V, enabling compatibility with ultra-low-voltage MCUs and energy-harvesting systems.
Is the MAX6363LUT23 pin-compatible with other members of the MAX636x family, such as MAX6361 or MAX6364?
Yes, all MAX6361/MAX6363/MAX6364 variants share identical SOT23-6 pinout and footprint. However, functionality differs: MAX6363LUT23 provides BATT ON but no MR or RESET IN inputs; MAX6361 includes MR; MAX6364 includes RESET IN. Pin-for-pin replacement is electrically safe only if unused pins are left floating or tied off per their respective datasheet guidance.
MAX6363LUT23 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Bulk
- 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-23-6
MAX6363LUT23 FAQ
1.How can I place an order for MAX6363LUT23 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6363LUT23 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 reliable?
The price and inventory of MAX6363LUT23 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6363LUT23 is usually 5 days.
3.What payment methods are accepted for MAX6363LUT23?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6363LUT23 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6363LUT23?
MAX6363LUT23 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6363LUT23 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?
For technical support, including MAX6363LUT23 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6363LUT23 requirements.
6.How does Aetrix verify that MAX6363LUT23 is sourced from the original manufacturer or authorized distributors?
All MAX6363LUT23 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 meets industry standards.
7.What is the process for return or replacement of MAX6363LUT23?
All MAX6363LUT23 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6363LUT23, 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 part is unused and in its original packaging.
Return procedure for MAX6363LUT23:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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