My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX6364PUT31-T
- Part No.:
- MAX6364PUT31-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6364PUT31-T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:1,678
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX6364PUT31-T from Maxim Integrated is a low-power microprocessor supervisory circuit with auxiliary user-adjustable reset input, battery switchover, and power-failure warning functionality. It operates from +1.2V supply, features factory-preset 3.08V reset threshold, 150ms minimum reset timeout, and active-low open-drain RESET output. Used in portable/battery-powered equipment to maintain SRAM integrity during brownout.
For engineers reviewing the MAX6364PUT31-T datasheet, MAX6364PUT31-T pinout, MAX6364PUT31-T application, or MAX6364PUT31-T equivalent, key selection criteria include adjustable reset-in threshold (1.235V reference), battery switchover hysteresis (40mV), guaranteed RESET/RESET validity down to 1.2V, and SOT23-6 package compatibility with space-constrained µP systems.
Technical Context
The MAX6364PUT31-T implements a precision voltage comparator for RESET IN referenced to an internal 1.235V bandgap, enabling programmable secondary supply monitoring via external resistor divider. Its battery switchover logic requires both VCC < VTH and VCC < VBATT − 0.02V before engaging backup power to OUT.
It provides dual reset outputs (RESET and RESET) with identical timing behavior: asserted when VCC falls below 3.08V, MR is low, or RESET IN drops below 1.235V; held active for ≥150ms after recovery. The device guarantees operation across −40°C to +85°C with supply current as low as 10µA at VCC = 2.8V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 3.08V ±1.5% - precise brownout detection for +3.3V systems |
| RESET Timeout Period | 150ms min - ensures µP completes power-up initialization before release | Operating Supply | +1.2V to +5.5V - supports single-cell Li+ and multi-rail embedded systems |
| RESET IN Threshold | 1.235V - stable internal reference for configuring external undervoltage monitors |
| Supply Current | 10µA typical at VCC = 2.8V - enables multi-year battery life in backup mode |
| Battery Switchover Hysteresis | 40mV - prevents oscillation during slow VCC decay near VBATT |
| Output Type | Active-low open-drain RESET - allows wired-OR configuration with other system resets |
Pinout & Package
Package: 6-pin SOT23 (U6-1), footprint compatible with industry-standard 0.95mm pitch land pattern (Maxim land pattern no. 90-0175).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: RESET | Active-low open-drain reset output | Asserts low during VCC undervoltage, MR low, or RESET IN < 1.235V; requires external pull-up |
| 2: GND | Ground reference | Common return for VCC, BATT, and all internal comparators |
| 3: RESET IN | Auxiliary reset input | Compares external voltage to 1.235V reference; triggers reset when falling below threshold |
| 4: VCC | Main supply input | Primary power source; powers internal circuitry and supplies OUT when above reset threshold |
| 5: OUT | Power output | Switches between VCC and BATT based on voltage comparison; sources up to 150mA |
| 6: BATT | Backup battery input | Provides hold-up power to OUT when VCC fails; engages only if VCC < VBATT − 20mV |
Key Features
| Feature | Design Value |
|---|---|
| User-adjustable reset input | 1.235V internal reference enables precise secondary supply monitoring via R1/R2 divider |
| Battery switchover control | Automatic MOSFET-based switching to BATT with 40mV hysteresis prevents chatter during brownout |
| Low-voltage operation | Functional down to +1.2V supply ensures compatibility with ultra-low-power µPs and single-cell batteries |
| Reset timing guarantee | 150ms minimum timeout period validated over −40°C to +85°C temperature range |
| Transient immunity | Withstands 30µs transients 100mV below VTH without false triggering; enhanced by 0.1µF VCC bypass |
Applications
| Portable Medical Devices | Industrial Data Loggers |
|---|---|
Use Scenario: Maintaining SRAM state during battery replacement or AC power loss in handheld diagnostic tools. IC Role / Device Role / Timing Role: Supervisory IC providing battery-backed power switchover and reset assertion to preserve volatile memory contents. Use Value: Enables hot-swap battery operation without data corruption; 150ms reset hold ensures clean µP restart after power recovery. | Use Scenario: Continuous sensor data capture in remote field installations powered by solar-charged Li+ cells. IC Role / Device Role / Timing Role: Dual-role supervisor: monitors main DC rail for brownout and uses RESET IN to detect secondary analog supply degradation. Use Value: Prevents corrupted log entries by asserting reset before ADC reference collapse; 1.235V reference allows accurate 4.6V secondary rail monitoring. |
| POS Terminals | Smart Meters |
Use Scenario: Transaction rollback protection during unexpected mains dropout in retail point-of-sale systems. IC Role / Device Role / Timing Role: Power-failure warning and controlled reset generator ensuring EEPROM write completion before shutdown. Use Value: Guarantees safe state save using 3.08V threshold aligned with +3.3V logic rails; open-drain RESET allows integration with existing reset bus. | Use Scenario: Tamper-resistant energy measurement during grid instability or battery depletion in utility meters. IC Role / Device Role / Timing Role: Battery switchover controller and watchdog-enabling supervisor maintaining metrology core operation. Use Value: 10µA supply current extends 10-year battery life; BATT ON signal (on MAX6363 variant) not applicable here-MAX6364PUT31-T uses RESET IN for auxiliary monitoring instead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6364HUT31-T | Same 3.08V reset threshold and RESET IN function, but active-high open-drain RESET output | Requires inverted reset logic or level-shifting in systems expecting active-low assertion | Select when host µP reset input is active-high or when wired-OR with other active-high signals is needed |
| TPS3808G33DBVR | 3.3V fixed reset threshold, no auxiliary RESET IN pin, 200ms reset timeout, 1.4V min supply | Lacks programmable secondary supply monitoring; suited for simpler single-rail supervision | Choose for cost-sensitive designs where only primary VCC monitoring is required and 3.3V threshold suffices |
Compared with MAX6364HUT31-T, the MAX6364PUT31-T provides native active-low reset signaling without external inversion; versus TPS3808G33DBVR, it adds critical flexibility for dual-supply monitoring but occupies same SOT23-6 footprint.
Availability
MAX6364PUT31-T is available at Aetrix Electronics and suitable for portable medical devices, industrial data loggers, POS terminals, and smart meters requiring stable component supply with long-term lifecycle support.
Supply support for MAX6364PUT31-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, sensing, and interface applications in industrial, computing, and communications systems.
The MAX6361–MAX6364 family delivers integrated power-supply monitoring and battery switchover for microprocessor systems where reliability, low quiescent current, and compact packaging are essential.
FAQ
What is the exact reset threshold voltage for MAX6364PUT31-T?
The MAX6364PUT31-T has a factory-preset reset threshold of 3.08V, with ±1.5% tolerance over temperature. This value is laser-trimmed during production and applies to the primary VCC monitoring function. The auxiliary RESET IN pin uses a separate 1.235V internal reference for external voltage monitoring.
How does the battery switchover logic work in MAX6364PUT31-T?
The MAX6364PUT31-T switches OUT from VCC to BATT only when two conditions are met simultaneously: VCC falls below the 3.08V reset threshold AND VCC is at least 20mV lower than VBATT. When VCC recovers to VBATT + 20mV, OUT switches back to VCC. This 40mV hysteresis prevents oscillation during slow brownout transitions.
Can MAX6364PUT31-T monitor a secondary power rail like +5V or +2.5V?
Yes. The MAX6364PUT31-T includes a dedicated RESET IN pin referenced to a precise 1.235V internal bandgap. By connecting an external resistor divider (R1/R2) from the secondary rail to GND, users can program any reset threshold using VRTH = 1.235V × (1 + R1/R2). For example, a +5V rail with 4.6V trip point uses R2 = 100kΩ and R1 = 273kΩ.
What is the minimum supply voltage required for MAX6364PUT31-T to operate correctly?
The MAX6364PUT31-T operates from +1.2V to +5.5V on either VCC or VBATT. All specifications-including RESET/RESET output validity, RESET IN comparator accuracy, and 150ms timeout guarantee-are ensured down to 1.2V. This enables use with single-cell Li+ batteries (2.7–4.2V) and emerging ultra-low-voltage microcontrollers.
Does MAX6364PUT31-T provide a battery-on status indicator?
No. The MAX6364PUT31-T does not include a BATT ON output. That function is exclusive to the MAX6363 variant. The MAX6364PUT31-T is specifically the auxiliary reset-input version and provides only RESET, RESET, RESET IN, VCC, BATT, GND, and OUT pins. To detect battery-backup mode, system firmware must monitor the state of RESET or observe VCC/BATT voltage levels externally.
MAX6364PUT31-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Battery Backup Circuit
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 3.08V
- 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
MAX6364PUT31-T FAQ
1.How can I place an order for MAX6364PUT31-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6364PUT31-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 MAX6364PUT31-T reliable?
The price and inventory of MAX6364PUT31-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6364PUT31-T is usually 5 days.
3.What payment methods are accepted for MAX6364PUT31-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6364PUT31-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6364PUT31-T?
MAX6364PUT31-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6364PUT31-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 MAX6364PUT31-T?
For technical support, including MAX6364PUT31-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6364PUT31-T requirements.
6.How does Aetrix verify that MAX6364PUT31-T is sourced from the original manufacturer or authorized distributors?
All MAX6364PUT31-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 MAX6364PUT31-T meets industry standards.
7.What is the process for return or replacement of MAX6364PUT31-T?
All MAX6364PUT31-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6364PUT31-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 MAX6364PUT31-T part is unused and in its original packaging.
Return procedure for MAX6364PUT31-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6364PUT31-T Tags
-
MIC826SYMT-TR
Microchip Technology
-
APX803S-31SA-7
Diodes Incorporated
-
APX803L20-29SA-7
Diodes Incorporated
-
TPS3828-33DBVR
Texas Instruments
-
V6340RSP3B+
EM Microelectronic
-
EM6325CXSP5B-2.9+
EM Microelectronic
-
MCP120T-300I/TT
Microchip Technology
-
MCP130T-315I/TT
Microchip Technology
-
MCP120T-475I/TT
Microchip Technology
-
MCP111T-300E/TT
Microchip Technology
-
MCP120T-315I/TT
Microchip Technology
-
MCP809T-315I/TT
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
