My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX6361LUT26+T
- Part No.:
- MAX6361LUT26+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6361LUT26+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:1,451
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX6361LUT26+T from Maxim Integrated is a low-power microprocessor supervisory circuit in SOT23-6 package, providing precision reset monitoring for +2.5V systems with factory-preset 2.63V threshold, manual reset input (MR), and active-low push-pull RESET output. It operates from +1.2V supply, delivers 150ms minimum reset timeout, and supports battery switchover for SRAM backup in portable equipment.
For engineers reviewing the MAX6361LUT26+T datasheet, MAX6361LUT26+T pinout, MAX6361LUT26+T application, or MAX6361LUT26+T equivalent, key selection criteria include guaranteed reset assertion down to 1.2V VCC/VBATT, debounced MR input with internal 20kΩ pull-up, power-supply transient immunity, and compatibility with Li+ battery-backed memory retention circuits.
Technical Context
The MAX6361LUT26+T integrates a precision voltage monitor, debounced manual reset input with internal pull-up, and push-pull reset driver - all operating from a single +1.2V to +5.5V supply. Its reset threshold is factory-trimmed to 2.63V (±1.5% over temperature), with 150ms minimum timeout and guaranteed reset validity down to 1.2V.
It features battery switchover logic that connects BATT to OUT when VCC falls below both the reset threshold and VBATT by ≥20mV, enabling seamless SRAM backup without external control. The MR input accepts TTL/CMOS levels and requires no external debounce circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.63V ±1.5% - precisely monitors +2.5V rails with minimal margin loss |
| Reset Timeout Period | 150ms min - ensures µP completes power-up initialization before release |
| Supply Voltage Range | +1.2V to +5.5V - supports ultra-low-voltage operation and wide rail compatibility |
| Supply Current (VCC) | 15µA typ at +25°C - enables multi-year battery life in always-on backup mode |
| MR Input Pull-Up | 20kΩ internal - eliminates need for external resistor in manual reset switch design |
| RESET Output Type | Active-low push-pull - drives µP reset pin directly without external pull-up |
| Battery Switchover Hysteresis | 40mV (20mV rise/fall) - prevents oscillation during slow VCC brownout recovery |
Pinout & Package
Package: 6-pin SOT23 (U6-1), RoHS-compliant, -40°C to +85°C industrial temperature range.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - RESET | Active-low push-pull reset output | Drives µP reset pin directly; asserts low during power-up, brownout, or MR activation |
| 2 - GND | Ground reference | Common return path for VCC, BATT, and output currents |
| 3 - MR | Manual reset input | Logic-low assertion triggers reset; internal 20kΩ pull-up to VCC enables momentary switch interface |
| 4 - VCC | Main supply input | Primary power source; reset asserted when VCC < 2.63V; powers internal circuitry |
| 5 - OUT | Power output | Supplies SRAM from VCC (normal) or BATT (backup); switches automatically on brownout |
| 6 - BATT | Backup battery input | Connects to Li+ cell; sources OUT only when VCC < VTH and VCC < VBATT − 20mV |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed reset threshold | 2.63V with ±1.5% accuracy over -40°C to +85°C - eliminates calibration overhead in production |
| Debounced MR input | No external RC required - internal filtering rejects noise spikes < 100ns, simplifying PCB layout |
| Guaranteed reset validity down to 1.2V | Ensures reliable µP hold during deep brownout - critical for battery-powered systems |
| Automatic battery switchover | 40mV hysteresis prevents chatter during slow VCC recovery - preserves SRAM data integrity |
| Low quiescent current | 15µA typical supply current - extends shelf life of backup batteries beyond 10 years |
Applications
| Portable Medical Monitors | Industrial PLC I/O Modules |
|---|---|
Use Scenario: Continuous ECG waveform logging with nonvolatile SRAM during AC power loss. IC Role / Device Role / Timing Role: Supervisory circuit asserting reset and switching SRAM to Li+ backup within 20µs of VCC drop below 2.63V. Use Value: Prevents data corruption during 10–300ms brownouts; enables >5-year battery shelf life due to 15µA standby current. | Use Scenario: Remote sensor node retaining configuration and last-read values after field power interruption. IC Role / Device Role / Timing Role: Providing deterministic 150ms reset pulse and automatic BATT→OUT switchover to sustain SRAM during 50–500ms outages. Use Value: Eliminates need for external MOSFET control logic; reduces BOM count by two components versus discrete solution. |
| POS Terminal Memory Backup | Smart Meter Real-Time Clock Hold |
Use Scenario: Preserving transaction buffer and encryption keys during mains dropout in retail terminals. IC Role / Device Role / Timing Role: Monitoring +2.5V system rail and asserting push-pull RESET to halt µP while switching SRAM to backup. Use Value: Push-pull output avoids weak-pull issues in noisy retail environments; 2.63V threshold matches 2.5V LDO tolerance. | Use Scenario: Maintaining RTC and metering registers during grid failure in utility meters. IC Role / Device Role / Timing Role: Acting as brownout detector and power-path controller for RTC SRAM powered by coin cell. Use Value: 1.2V operational floor allows full functionality even as coin cell discharges to 2.0V; 40mV hysteresis prevents false toggling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6361PUT26+T | Same 2.63V threshold and push-pull RESET, but leaded (Pb) package instead of lead-free (+T) | Identical electrical behavior; differs only in RoHS compliance and soldering profile | Select for legacy assembly lines requiring Pb-based reflow or where RoHS exemption applies |
| TPS3808G12DBVR | 2.63V threshold, open-drain active-low RESET, 200ms timeout, higher 24µA ICC | Lacks MR input and battery switchover; requires external pull-up and separate backup path | Choose when only basic reset supervision is needed and battery backup is handled externally |
Compared with MAX6361PUT26+T, the MAX6361LUT26+T offers identical supervision performance with RoHS-compliant packaging; compared with TPS3808G12DBVR, it provides integrated MR and battery switchover - reducing component count by three and eliminating timing-critical external logic.
Availability
MAX6361LUT26+T is available at Aetrix Electronics and suitable for portable medical monitors, industrial PLC I/O modules, POS terminal memory backup, and smart meter real-time clock hold requiring stable component supply and long-term lifecycle support.
Supply support for MAX6361LUT26+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 connectivity in demanding industrial and portable applications.
The MAX6361–MAX6364 family was engineered specifically for battery-backed µP systems requiring reliable power-monitoring, manual reset, and automatic SRAM power switchover in space-constrained SOT23 packages.
FAQ
What is the exact reset threshold voltage of the MAX6361LUT26+T?
The MAX6361LUT26+T has a factory-trimmed reset threshold of 2.63V, with guaranteed accuracy of ±1.5% over the full -40°C to +85°C temperature range. This value is laser-trimmed during production and documented in the Electrical Characteristics table of the MAX6361–MAX6364 datasheet under suffix "UT26". The threshold remains stable across supply voltages from +1.2V to +5.5V.
Does the MAX6361LUT26+T support battery backup for SRAM, and how does switchover work?
Yes, the MAX6361LUT26+T supports automatic battery backup for SRAM via its OUT pin. When VCC drops below both the 2.63V reset threshold and VBATT by at least 20mV, the internal MOSFET connects BATT to OUT. Switchover includes 40mV hysteresis (20mV on rise/fall) to prevent oscillation during slow brownout recovery - a core function confirmed in the Detailed Description and Pin Description sections of the datasheet.
What type of reset output does the MAX6361LUT26+T provide, and can it drive a µP reset pin directly?
MAX6361LUT26+T provides an active-low push-pull RESET output, which can drive a microprocessor reset pin directly without any external pull-up resistor. The output sinks up to 20mA and maintains valid logic levels down to 1.2V VCC or VBATT, as verified in the Electrical Characteristics table (VOL = 0.3V at ISINK = 1.6mA, VCC ≥ 2.1V). This eliminates BOM cost and layout complexity versus open-drain alternatives.
Is the manual reset input (MR) of the MAX6361LUT26+T debounced internally, and what is its default state?
Yes, the MR input of the MAX6361LUT26+T is internally debounced with 100ns glitch immunity and includes a 20kΩ internal pull-up resistor to VCC. Its default state is logic-high; pulling MR low asserts reset, and the output remains asserted for ≥150ms after MR returns high. No external RC network is required - this is explicitly stated in the Features list and Manual Reset Input section of the datasheet.
What is the minimum supply voltage at which the MAX6361LUT26+T guarantees proper reset assertion and release?
The MAX6361LUT26+T guarantees correct reset assertion (low) and release (high) down to +1.2V on either VCC or VBATT, as confirmed in both the General Description ("operate from supply voltages as low as +1.2V") and Electrical Characteristics table ("RESET/RESET Valid Down to 1.2V Guaranteed"). This ensures robust operation during deep brownouts and extended battery discharge.
MAX6361LUT26+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:
- 2.63V
- 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
MAX6361LUT26+T FAQ
1.How can I place an order for MAX6361LUT26+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6361LUT26+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 MAX6361LUT26+T reliable?
The price and inventory of MAX6361LUT26+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6361LUT26+T is usually 5 days.
3.What payment methods are accepted for MAX6361LUT26+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6361LUT26+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6361LUT26+T?
MAX6361LUT26+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6361LUT26+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 MAX6361LUT26+T?
For technical support, including MAX6361LUT26+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6361LUT26+T requirements.
6.How does Aetrix verify that MAX6361LUT26+T is sourced from the original manufacturer or authorized distributors?
All MAX6361LUT26+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 MAX6361LUT26+T meets industry standards.
7.What is the process for return or replacement of MAX6361LUT26+T?
All MAX6361LUT26+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6361LUT26+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 MAX6361LUT26+T part is unused and in its original packaging.
Return procedure for MAX6361LUT26+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6361LUT26+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…
