My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX6363PUT31+T
- Part No.:
- MAX6363PUT31+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6363PUT31+T.pdf
- Description:
- IC SUPERVISOR MPU LP SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:2,200
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX6363PUT31+T 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 3.08V reset threshold, 150ms minimum reset timeout, and active-low open-drain RESET output. Used in portable/battery-powered equipment to maintain SRAM backup during brownout.
For engineers reviewing the MAX6363PUT31+T datasheet, MAX6363PUT31+T pinout, MAX6363PUT31+T application, or MAX6363PUT31+T equivalent, key selection criteria include battery-on indicator functionality, 3.08V precision reset threshold, SOT23-6 package compatibility, and guaranteed reset assertion down to 1.2V supply voltage.
Technical Context
The MAX6363PUT31+T implements a dual-supply monitoring architecture with automatic VCC-to-BATT switchover when VCC falls below both the 3.08V reset threshold and VBATT by ≥20mV. Its internal MOSFET connects the backup battery to OUT only under validated brownout conditions, preventing false switching.
It integrates a dedicated BATT ON output that asserts high exclusively in battery-backup mode-confirmed by Table 1 and Pin Description-and guarantees RESET/RESET validity down to 1.2V on either VCC or VBATT, enabling reliable operation across ultra-low-voltage systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 3.08V (factory-preset, ±1.5% over -40°C to +85°C) - ensures precise detection of 3.3V supply brownout before system failure. |
| Reset Timeout Period | 150ms (minimum) - provides sufficient hold time for µP power-up sequencing and SRAM stabilization. |
| Operating Supply Voltage | +1.2V to +5.5V (VCC or VBATT) - supports direct connection to Li+ batteries and low-voltage logic rails without external regulators. |
| Supply Current (VCC) | 11µA (typical at VCC = 2.8V) - enables multi-year battery life in always-on backup applications. |
| Battery Standby Current | 0.02µA (typical at TA = +25°C) - minimizes drain on backup cells during extended storage or standby. |
| VCC-to-OUT On-Resistance | 2.75Ω (at VCC = 4.75V, IOUT ≤150mA) - maintains low dropout and minimal voltage loss during main supply operation. |
| BATT-to-OUT On-Resistance | 2.38Ω (at VBATT = 2.25V, IOUT ≤5mA) - ensures stable SRAM voltage delivery even at end-of-battery-life voltages. |
Pinout & Package
Package: 6-pin SOT23 (U6-1 outline, RoHS-compliant +T suffix). Compact footprint (2.9mm × 1.6mm × 1.1mm) suitable for space-constrained portable designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - RESET | Active-low open-drain reset output | Asserts low during VCC undervoltage, brownout, or after manual reset; requires external pull-up for µP interface. |
| 2 - GND | Ground reference | Common return path for VCC, VBATT, and all internal circuitry; must be low-impedance for noise immunity. |
| 3 - MR | Manual reset input | Logic-low assertion forces reset; internal 20kΩ pull-up to VCC eliminates need for external resistor. |
| 4 - VCC | Main supply input | Primary power source; device monitors this rail for reset condition and powers OUT when above threshold. |
| 5 - OUT | Power output | Switches between VCC and VBATT sources; delivers up to 150mA to SRAM or real-time clock circuitry. |
| 6 - BATT | Backup battery input | Connects to coin cell or Li+ battery; activates switchover when VCC drops below VBATT −20mV and reset threshold. |
Key Features
| Feature | Design Value |
|---|---|
| Battery-On Output (BATT ON) | Dedicated high-assertion signal confirms active battery-backup mode-enables firmware logging or user alert without polling RESET state. |
| 40mV Switchover Hysteresis | Prevents oscillation during slow VCC decay by requiring 20mV rise above VBATT to re-engage main supply-eliminates repeated toggling near threshold. |
| 1.2V Guaranteed Operation | RESET/RESET remains functional even as VCC or VBATT decays to 1.2V-critical for preserving SRAM data during deep brownout. |
| Power-Supply Transient Immunity | Withstands negative-going VCC transients up to 30µs at 100mV overdrive-avoids spurious resets from switching noise or ESD events. |
| 0.1µF Bypass Support | Internal design optimized for standard 0.1µF ceramic capacitor at VCC pin-reduces layout complexity and improves noise rejection. |
Applications
| Portable Medical Devices | Industrial Data Loggers |
|---|---|
Use Scenario: Continuous vital-sign monitoring with nonvolatile memory retention during battery replacement or AC power loss. IC Role / Device Role / Timing Role: Supervisory circuit providing BATT ON status flag and seamless VCC-to-battery switchover to preserve SRAM-stored patient history. Use Value: Eliminates need for external logic to detect backup mode; 0.02µA battery standby current extends coin-cell life beyond 10 years. | Use Scenario: Remote environmental sensor nodes operating on primary battery with backup supercapacitor. IC Role / Device Role / Timing Role: Power-monitoring supervisor asserting RESET during brownout while routing backup power to RTC and flash memory controller via OUT pin. Use Value: 150ms reset timeout ensures full microcontroller initialization before data acquisition resumes; 3.08V threshold matches 3.3V sensor rail tolerance. |
| POS Terminals | Smart Meters |
Use Scenario: Transaction rollback protection during sudden AC outage in retail point-of-sale hardware. IC Role / Device Role / Timing Role: Battery-backed supervisor maintaining SRAM integrity and signaling BATT ON to host processor for graceful shutdown sequence. Use Value: BATT ON output enables deterministic firmware response-no software polling or timing uncertainty in critical transaction window. | Use Scenario: Tamper-resistant energy meter retaining billing data and time-of-use registers during grid instability. IC Role / Device Role / Timing Role: Precision reset monitor with 3.08V threshold aligned to 3.3V meter SoC supply, ensuring reset occurs before logic corruption. Use Value: Factory-trimmed 3.08V threshold (±1.5%) avoids calibration overhead; SOT23-6 footprint allows placement adjacent to metering IC without area penalty. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar supervisory circuit applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6363HUT31+T | Same 3.08V reset threshold and BATT ON function, but offered in higher-temperature grade (−40°C to +125°C vs. +85°C). | Required for automotive under-hood or industrial high-temp environments where ambient exceeds +85°C. | Select when extended temperature range is mandatory; otherwise identical functionality and pinout. |
| TPS3808G30DBVR | 3.0V reset threshold (±0.5%), no BATT ON output, push-pull RESET, 1.8V–6.0V supply range. | Lacks battery switchover and status indication-suitable only for single-rail monitoring without backup power management. | Choose only if BATT ON and dual-supply switchover are unnecessary; not a drop-in replacement due to missing BATT ON and different reset structure. |
Compared with MAX6363PUT31+T, the MAX6363HUT31+T offers identical supervision and battery-handling functionality with extended thermal rating, while the TPS3808G30DBVR provides tighter reset accuracy but omits critical battery-backup features-making it unsuitable for SRAM retention applications requiring BATT ON confirmation.
Availability
MAX6363PUT31+T is available at Aetrix Electronics and suitable for portable medical devices, industrial data loggers, POS terminals, and smart meters requiring stable component supply and long-term battery-backed memory retention.
Supply support for MAX6363PUT31+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, mixed-signal, and power-management ICs for demanding industrial, medical, and communications applications.
The MAX6361–MAX6364 family was engineered specifically for µP systems requiring reliable power monitoring, battery switchover, and SRAM backup-with the MAX6363PUT31+T variant optimized for 3.3V-rail applications needing explicit battery-active status indication.
FAQ
What is the exact reset threshold voltage of the MAX6363PUT31+T?
The MAX6363PUT31+T has a factory-preset reset threshold of 3.08V, with guaranteed tolerance of ±1.5% over the full operating temperature range (−40°C to +85°C). This value is confirmed in the Ordering Information table and Electrical Characteristics section of the datasheet, and corresponds to the "31" suffix in the part number.
Does the MAX6363PUT31+T provide a dedicated battery-status output?
Yes, the MAX6363PUT31+T includes a dedicated BATT ON output (Pin 3 in MAX6363 pinout) that goes high exclusively when the device is in battery-backup mode-i.e., when VCC has fallen below both the 3.08V reset threshold and VBATT by at least 20mV. This is a defining feature of the MAX6363 variant, distinct from MAX6361/MAX6362/MAX6364.
Can the MAX6363PUT31+T operate with a 1.8V main supply?
Yes, the MAX6363PUT31+T operates from VCC as low as +1.2V, so it fully supports 1.8V systems. Its RESET and BATT ON outputs remain valid down to 1.2V on either VCC or VBATT, and its 3.08V reset threshold ensures reliable detection of brownout on higher rails-even when powered from a 1.8V auxiliary supply for control logic.
What is the maximum load current supported on the OUT pin of the MAX6363PUT31+T?
The MAX6363PUT31+T supports up to 150mA from VCC on the OUT pin (at VCC = 4.75V), 65mA from VCC at 3.15V, and 25mA from VCC at 2.38V. In battery-backup mode, OUT delivers up to 10mA from VBATT at 2.25V. These values are specified in the Electrical Characteristics table under "VCC to OUT On-Resistance" and "Battery-Switchover Threshold" conditions.
Is the MAX6363PUT31+T pin-compatible with other members of the MAX6361–MAX6364 family?
Yes, all MAX6361–MAX6364 variants-including the MAX6363PUT31+T-use the identical SOT23-6 package and share the same pinout (GND, VCC, MR, OUT, BATT, RESET). However, functionality differs: only MAX6363 provides BATT ON, only MAX6361 has MR, only MAX6362 has WDI, and only MAX6364 has RESET IN-so PCB design must match the selected variant's feature set.
MAX6363PUT31+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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
MAX6363PUT31+T FAQ
1.How can I place an order for MAX6363PUT31+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6363PUT31+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 MAX6363PUT31+T reliable?
The price and inventory of MAX6363PUT31+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6363PUT31+T is usually 5 days.
3.What payment methods are accepted for MAX6363PUT31+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6363PUT31+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6363PUT31+T?
MAX6363PUT31+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6363PUT31+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 MAX6363PUT31+T?
For technical support, including MAX6363PUT31+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6363PUT31+T requirements.
6.How does Aetrix verify that MAX6363PUT31+T is sourced from the original manufacturer or authorized distributors?
All MAX6363PUT31+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 MAX6363PUT31+T meets industry standards.
7.What is the process for return or replacement of MAX6363PUT31+T?
All MAX6363PUT31+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6363PUT31+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 MAX6363PUT31+T part is unused and in its original packaging.
Return procedure for MAX6363PUT31+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6363PUT31+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…
