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Analog Devices Inc./Maxim Integrated MAX6364LUT23
- Part No.:
- MAX6364LUT23
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6364LUT23.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:1,336
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Product details
Overview
MAX6364LUT23 from Maxim Integrated is a low-power microprocessor supervisory circuit with auxiliary adjustable reset input, battery switchover capability, and factory-preset 2.32V reset threshold. It operates from +1.2V supply, delivers up to 150mA from VCC or backup battery, asserts active-low push-pull RESET for ≥150ms after power-up, and supports SRAM backup in brownout conditions for industrial controllers and portable instrumentation.
For engineers reviewing the MAX6364LUT23 datasheet, MAX6364LUT23 pinout, MAX6364LUT23 application, or MAX6364LUT23 equivalent, this device serves as a precision voltage monitor and battery-backup controller where reliable power-fail detection, manual or auxiliary-triggered reset, and low-quiescent-current operation down to 1.2V are required.
Technical Context
The MAX6364LUT23 integrates a precision 1.235V reference comparator for the RESET IN input, enabling external undervoltage monitoring independent of VCC threshold. Its internal MOSFET switch provides seamless battery-to-OUT switchover when VCC falls below VBATT by ≥20mV, with hysteresis preventing oscillation during slow VCC decay.
It features guaranteed RESET assertion during VCC power-down and recovery, with propagation delay <5µs (VCC falling at 10V/ms) and 150ms minimum timeout period. The device maintains RESET validity down to 1.2V on either VCC or VBATT, and includes glitch immunity (100ns) and transient rejection validated per typical operating characteristics graphs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.32V (factory preset, ±1.5% over -40°C to +85°C), sets precise brownout detection point for +2.5V systems. |
| RESET Timeout Period | 150ms minimum, ensures µP completes full initialization before release from reset state. |
| VCC Operating Range | +1.2V to +5.5V, enables direct interface with ultra-low-voltage logic and battery-backed systems. |
| Supply Current (ICC) | 15µA max at VCC = 5.5V, reduces system standby power in always-on instrumentation. |
| Battery Standby Current | 0.02µA max at TA = -40°C to +85°C, preserves backup battery life for multi-year deployments. |
| RESET IN Threshold | 1.235V (±5mV), allows accurate secondary power-rail monitoring via external resistor divider. |
| Output Drive | Active-low push-pull RESET, sinks 1.6mA at 0.4V VOL, compatible with TTL/CMOS µP reset inputs without pull-up. |
Pinout & Package
MAX6364LUT23 is housed in a 6-pin SOT23-6 package (2.9mm × 1.6mm × 1.1mm), optimized for space-constrained PCB layouts in portable and embedded applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND | Ground reference | Common return path for all internal circuits and output drivers; must be low-impedance connection. |
| VCC | Main supply input | Primary power source; powers internal logic and supplies OUT when above reset threshold. |
| RESET IN | Auxiliary reset trigger input | Compares against 1.235V reference; falling edge below threshold asserts RESET independently of VCC. |
| BATT | Backup battery input | Connects to Li+ or coin cell; automatically powers OUT when VCC drops below VBATT − 20mV. |
| OUT | Power output for SRAM or peripherals | Switches between VCC and BATT; delivers up to 150mA from VCC or 10mA from battery (VBATT ≥ 2.25V). |
| RESET | Active-low push-pull reset output | Drives µP reset pin low during fault conditions; remains asserted ≥150ms after VCC or RESET IN recovery. |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed 2.32V reset threshold | Eliminates external resistor divider, reduces BOM count and layout area for +2.5V system monitoring. |
| 1.235V precision RESET IN comparator | Enables configurable secondary rail monitoring (e.g., analog supply or I/O voltage) with <5mV tolerance. |
| 150ms minimum reset timeout | Guarantees µP reset hold time exceeds worst-case power-rail stabilization and clock startup delays. |
| 20mV hysteresis on battery switchover | Prevents chattering during slow VCC ramp-down, ensuring clean transition to backup power without glitches. |
| 1.2V minimum operating voltage | Supports operation during deep brownout or single-cell Li+ discharge down to 2.2V, extending system uptime. |
Applications
| Industrial Controller Monitoring | Portable Medical Instrumentation |
|---|---|
Use Scenario: PLC I/O module detects main 3.3V rail collapse during factory floor power fluctuation. IC Role / Device Role / Timing Role: Supervisory circuit monitors VCC, asserts RESET within 5µs of threshold breach, holds for 150ms, and switches SRAM to backup battery. Use Value: Prevents corrupted register writes and preserves volatile configuration data across 100ms–500ms outages. |
Use Scenario: Handheld blood glucose meter loses primary power mid-test due to battery depletion. IC Role / Device Role / Timing Role: MAX6364LUT23 senses VCC drop below 2.32V, activates battery switchover, and holds µP in reset until stable backup power is established. Use Value: Ensures test result integrity and avoids unsafe shutdown during critical measurement phase. |
| POS Terminal Power Fail Recovery | Smart Sensor Node Data Retention |
Use Scenario: Retail terminal experiences brief AC dropout while processing credit card transaction. IC Role / Device Role / Timing Role: Uses RESET IN to monitor isolated 5V DC-DC converter output; triggers reset if secondary supply fails before main rail. Use Value: Enables deterministic rollback to last known-good state and prevents partial transaction commits. |
Use Scenario: Wireless environmental sensor node enters low-power sleep with only backup capacitor supplying RTC and EEPROM. IC Role / Device Role / Timing Role: Supplies regulated 2.3V to SRAM via OUT pin during VCC absence; draws ≤0.02µA from battery in standby. Use Value: Extends usable battery life to >10 years while guaranteeing nonvolatile memory retention during extended outages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar supervisory circuit applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6364LUT26 | Factory preset reset threshold = 2.55V (vs. 2.32V); otherwise identical pinout, timing, and feature set. | Suitable for +2.7V or +3.0V systems requiring higher trip point; not interchangeable without board-level voltage validation. | Select MAX6364LUT26 when monitoring rails ≥2.55V; MAX6364LUT23 remains optimal for +2.5V nominal designs. |
| TPS3808G125DBVR | Fixed 1.25V reset threshold, no battery switchover or RESET IN; 1.8–6.0V supply range; 350ms timeout. | Lacks backup power management and auxiliary reset input; intended for simple reset-only applications without SRAM retention. | Choose TPS3808G125DBVR only if battery backup and dual-trigger reset are unnecessary; MAX6364LUT23 provides integrated functionality absent in TI part. |
Compared with MAX6364LUT26, MAX6364LUT23 offers lower reset threshold for tighter margin on 2.5V rails; compared with TPS3808G125DBVR, it adds battery switchover, RESET IN, and sub-2V operation-critical for portable and fail-safe systems requiring data retention.
Availability
MAX6364LUT23 is available at Aetrix Electronics and suitable for industrial controllers, portable medical devices, POS terminals, and smart sensor nodes requiring stable component supply with long-term lifecycle support.
Supply support for MAX6364LUT23 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 high-performance analog and mixed-signal ICs for power, sensing, and interface applications in industrial, automotive, and communications markets.
The MAX636x family targets power-supply supervision and battery backup in µP-based systems, emphasizing ultra-low quiescent current, precision voltage thresholds, and robust transient immunity for mission-critical embedded control.
FAQ
What is the factory-preset reset threshold voltage for MAX6364LUT23?
The MAX6364LUT23 has a factory-preset reset threshold of 2.32V, with ±1.5% tolerance over the full -40°C to +85°C temperature range. This value is laser-trimmed during production and does not require external components. The threshold is specified under VCC falling conditions at 10V/ms slew rate, and the device guarantees RESET assertion until VCC rises above 2.32V and remains stable for ≥150ms. MAX6364LUT23 uses this fixed threshold to enable plug-and-play integration in +2.5V systems without calibration.
Does MAX6364LUT23 support battery backup switchover, and what are the switching conditions?
Yes, MAX6364LUT23 supports automatic battery backup switchover. It connects the BATT input to the OUT pin when two conditions are met: VCC falls below the 2.32V reset threshold, and VCC is at least 20mV lower than VBATT. A 40mV hysteresis prevents oscillation during slow VCC decay. When VCC recovers to VBATT + 20mV, the device switches back to VCC. MAX6364LUT23 sustains OUT from battery down to VBATT = 2.25V and delivers up to 10mA, making it suitable for SRAM retention in brownout scenarios.
What is the function and accuracy of the RESET IN input on MAX6364LUT23?
The RESET IN input on MAX6364LUT23 is an auxiliary reset trigger referenced to an internal 1.235V bandgap comparator, with ±5mV accuracy over temperature. When RESET IN voltage falls below 1.235V, the device asserts RESET immediately and holds it for ≥150ms after RESET IN rises above threshold. This allows external monitoring of secondary rails (e.g., analog supply or I/O voltage) using a simple resistor divider. MAX6364LUT23 does not use RESET IN for power-fail detection of VCC-it operates independently, providing dual-trigger reset capability.
What output type and drive strength does MAX6364LUT23 provide for the RESET signal?
MAX6364LUT23 provides an active-low push-pull RESET output. It sources up to 1mA at VOH = 0.8·VCC (with VCC ≥ 1.2V) and sinks up to 1.6mA at VOL = 0.4V (with VCC ≥ 2.1V). This eliminates the need for an external pull-up resistor and ensures fast, rail-to-rail logic transitions compatible with standard µP reset inputs. The push-pull structure also prevents floating states during power transitions, enhancing reliability in noisy environments. MAX6364LUT23 guarantees RESET validity down to 1.2V on either VCC or VBATT supply.
How does MAX6364LUT23 handle power supply transients, and what protection is built-in?
MAX6364LUT23 incorporates inherent immunity to short-duration negative-going VCC transients through its comparator design and internal filtering. The datasheet specifies maximum transient duration versus overdrive (e.g., a 100mV dip below 2.32V is tolerated for up to 30µs without false reset). A 0.1µF bypass capacitor placed near the VCC pin further enhances immunity. MAX6364LUT23 also features 100ns glitch immunity on MR and RESET IN inputs, and its 150ms timeout ensures transient-induced resets do not prematurely release the µP. These features make MAX6364LUT23 suitable for electrically noisy industrial settings.
MAX6364LUT23 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
MAX6364LUT23 FAQ
1.How can I place an order for MAX6364LUT23 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6364LUT23 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 MAX6364LUT23 reliable?
The price and inventory of MAX6364LUT23 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6364LUT23 is usually 5 days.
3.What payment methods are accepted for MAX6364LUT23?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6364LUT23 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6364LUT23?
MAX6364LUT23 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6364LUT23 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 MAX6364LUT23?
For technical support, including MAX6364LUT23 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6364LUT23 requirements.
6.How does Aetrix verify that MAX6364LUT23 is sourced from the original manufacturer or authorized distributors?
All MAX6364LUT23 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 MAX6364LUT23 meets industry standards.
7.What is the process for return or replacement of MAX6364LUT23?
All MAX6364LUT23 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6364LUT23, 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 MAX6364LUT23 part is unused and in its original packaging.
Return procedure for MAX6364LUT23:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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