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Analog Devices Inc./Maxim Integrated MAX6363PUT46+T
- Part No.:
- MAX6363PUT46+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6363PUT46+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:3,353
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Product details
Overview
MAX6363PUT46+T from Maxim Integrated is a SOT23-6, low-power microprocessor supervisory circuit with battery switchover and BATT ON status indication. It operates from +1.2V supply, features a factory-preset 4.63V reset threshold (min 4.50V, typ 4.63V), guarantees RESET/RESET validity down to 1.2V, and provides 150ms minimum reset timeout. It is used in portable/battery-powered equipment to preserve SRAM during brownout.
For engineers reviewing the MAX6363PUT46+T datasheet, MAX6363PUT46+T pinout, MAX6363PUT46+T application, or MAX6363PUT46+T equivalent, key selection criteria include its active-low open-drain reset output, battery-on indicator function, 4.63V precision reset threshold, 6-pin SOT23 footprint, and guaranteed operation at VCC/VBATT ≥1.2V - all critical for reliable power-fail detection and backup mode signaling in space-constrained µP systems.
Technical Context
The MAX6363PUT46+T implements a dual-supply monitoring architecture where OUT is sourced from VCC above reset threshold and automatically switches to the greater of VCC or VBATT when VCC falls below VTH. Its internal MOSFET enables battery switchover with 40mV hysteresis (VBATT − VCC) to prevent oscillation during slow voltage transitions.
It integrates a dedicated BATT ON output that asserts high only in verified battery-backup mode - i.e., when VCC < VTH *and* VCC < VBATT - and ignores MR, WDI, and RESET IN inputs during backup operation. The device guarantees reset assertion during power-up, power-down, and brownout events with no external components required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 4.50V (min), 4.63V (typ), 4.75V (max) - ensures reliable detection of +5V supply collapse before µP malfunction |
| Supply Voltage Range | +1.2V to +5.5V - supports operation directly from single-cell Li+ or low-voltage logic rails |
| Reset Timeout Period | 150ms (min) - guarantees µP initialization completes before release from reset |
| Supply Current (ICC) | 10µA (typ at VCC=2.8V), 15µA (typ at VCC=5.5V) - enables multi-year battery life in backup mode |
| Battery Standby Current | 0.02µA (typ), 0.05µA (max) - minimizes drain on backup cell when VCC is active |
| VCC-to-OUT On-Resistance | 2.75Ω (typ at VCC=4.75V, IOUT=150mA) - limits voltage drop and self-heating under full load |
| Reset Output Type | Active-low open-drain - allows wired-OR configuration and level translation with external pull-up |
Pinout & Package
Package: 6-pin SOT23 (U6-1), RoHS-compliant, -40°C to +85°C operating range.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: RESET | Active-low open-drain reset output | Asserts low during VCC undervoltage, remains low ≥150ms after VCC recovery; requires external pull-up |
| 2: GND | Ground reference | Common return path for VCC, VBATT, and all internal circuitry; must be low-impedance |
| 3: MR | Manual reset input | Logic-low assertion forces reset; internal 20kΩ pull-up to VCC; debounced internally |
| 4: VCC | Main supply input | Primary power source; reset asserted when VCC falls below 4.50–4.75V threshold |
| 5: OUT | Power output | Switches between VCC and VBATT; sources up to 150mA; powers SRAM or real-time clock |
| 6: BATT | Backup battery input | Connects to Li+ or coin cell; enables automatic switchover when VCC drops below VBATT − 0.2V |
Key Features
| Feature | Design Value |
|---|---|
| Battery-On Output (BATT ON) | Dedicated high-asserting signal confirms valid battery-backup mode - eliminates need for external voltage comparators |
| Precision Reset Threshold | ±1.5% tolerance over temperature ensures consistent +5V supply monitoring without calibration |
| Low-Voltage Operation | Guaranteed functionality at VCC = VBATT = +1.2V enables use with emerging ultra-low-power µPs and energy-harvesting systems |
| Transient Immunity | Withstands 30µs negative-going transients 100mV below VTH - prevents spurious resets in noisy industrial environments |
| Integrated Switchover Hysteresis | 40mV (VBATT − VCC) hysteresis prevents chattering during slow brownout recovery - no external timing components needed |
Applications
| Portable Medical Devices | Industrial Data Loggers |
|---|---|
Use Scenario: Battery-powered glucose meters and handheld ECG monitors require nonvolatile memory retention during AC power loss or battery swap. IC Role / Device Role / Timing Role: MAX6363PUT46+T monitors main supply and triggers seamless switchover to backup cell while asserting BATT ON to flag backup activation. Use Value: Prevents data corruption in SRAM by maintaining power continuity and providing unambiguous backup status to firmware. | Use Scenario: Remote environmental sensors log temperature/humidity for weeks on primary battery; backup cell preserves last readings during deep discharge. IC Role / Device Role / Timing Role: MAX6363PUT46+T detects VCC collapse below 4.50V and switches OUT to VBATT within microseconds, while BATT ON signals host MCU to enter low-power save mode. Use Value: Eliminates need for discrete diode-OR + comparator circuit, reducing BOM count and PCB area by >40%. |
| POS Terminals | Smart Meters |
Use Scenario: Retail point-of-sale terminals must retain transaction buffers during brief utility outages or hot-swap battery replacement. IC Role / Device Role / Timing Role: MAX6363PUT46+T asserts reset to halt µP execution while switching OUT to backup, then releases reset after 150ms stable backup power. Use Value: Guarantees deterministic µP restart sequence and avoids partial writes to flash memory during power transition. | Use Scenario: Electricity meters maintain timekeeping and tamper logs during grid interruptions lasting seconds to minutes. IC Role / Device Role / Timing Role: MAX6363PUT46+T supplies RTC/SRAM from Li+ cell when mains fail, with BATT ON enabling firmware to disable noncritical peripherals and extend backup runtime. Use Value: Achieves >10-year backup lifetime using 20mAh coin cell due to sub-100nA standby current in battery mode. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6363HUT46+T | Same reset threshold (4.50–4.75V) and BATT ON function, but uses push-pull RESET output instead of open-drain | Requires no external pull-up resistor; incompatible with wired-OR reset buses | Select when driving a single µP reset pin directly and board space is constrained |
| TPS3808G33DBVR | 3.3V fixed reset threshold, no BATT ON output, 350ms reset timeout, higher ICC (12µA min) | Lacks battery switchover and status indication; suited for primary-supply-only monitoring | Select only if system uses dedicated backup controller or does not require battery mode signaling |
Compared with MAX6363HUT46+T, the MAX6363PUT46+T offers flexible reset bus interfacing via open-drain output, while TPS3808G33DBVR trades BATT ON functionality for tighter 3.3V threshold accuracy - making MAX6363PUT46+T the sole choice when both precise +5V monitoring and unambiguous battery-backup signaling are mandatory.
Availability
MAX6363PUT46+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 lifecycle support.
Supply support for MAX6363PUT46+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, automotive, and computing applications.
The MAX6361–MAX6364 family was engineered specifically for µP systems needing integrated power supervision, battery switchover, and status signaling in minimal footprint - targeting portable, battery-backed, and mission-critical embedded platforms.
FAQ
What is the exact reset threshold voltage range for MAX6363PUT46+T?
The MAX6363PUT46+T has a factory-preset reset threshold of 4.50V (minimum), 4.63V (typical), and 4.75V (maximum) over the full -40°C to +85°C temperature range. This range is specified in the Electrical Characteristics table of the official datasheet and ensures robust detection of +5V supply failure without false triggering during normal operation.
Does MAX6363PUT46+T support true battery backup mode with automatic switchover?
Yes, MAX6363PUT46+T supports fully autonomous battery backup mode. When VCC falls below both the reset threshold (4.50V min) and VBATT − 0.2V, it disconnects VCC from OUT and connects VBATT to OUT. The BATT ON pin goes high to confirm this state, and the device draws only 0.02µA from the backup cell - enabling multi-year operation on standard coin cells.
What is the function of the BATT ON pin on MAX6363PUT46+T?
The BATT ON pin on MAX6363PUT46+T is a dedicated status output that asserts high *only* when the device is actively supplying OUT from the backup battery - i.e., when VCC < VTH *and* VCC < VBATT. It is not asserted during normal VCC operation or during transient dips, providing firmware with a reliable, glitch-free indicator of active battery-backup mode.
Can MAX6363PUT46+T operate with supply voltages below 2.0V?
Yes, MAX6363PUT46+T is fully specified to operate with VCC or VBATT as low as +1.2V. Its internal circuitry, including the reset comparator and BATT ON logic, remains functional and guaranteed across the entire +1.2V to +5.5V range. This capability is explicitly confirmed in the Absolute Maximum Ratings and Electrical Characteristics sections of the MAX6363PUT46+T datasheet.
What package type and footprint does MAX6363PUT46+T use?
MAX6363PUT46+T uses a 6-pin SOT23 package (package code U6-1, outline 21-0058). It has a standard 0.95mm pitch, 2.9mm × 1.6mm body size, and gull-wing leads compatible with automated reflow assembly. The "+" in "+T" suffix indicates lead-free (RoHS-compliant) construction, and land pattern 90-0175 applies.
MAX6363PUT46+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:
- 4.63V
- 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
MAX6363PUT46+T FAQ
1.How can I place an order for MAX6363PUT46+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6363PUT46+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 MAX6363PUT46+T reliable?
The price and inventory of MAX6363PUT46+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6363PUT46+T is usually 5 days.
3.What payment methods are accepted for MAX6363PUT46+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6363PUT46+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6363PUT46+T?
MAX6363PUT46+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6363PUT46+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 MAX6363PUT46+T?
For technical support, including MAX6363PUT46+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6363PUT46+T requirements.
6.How does Aetrix verify that MAX6363PUT46+T is sourced from the original manufacturer or authorized distributors?
All MAX6363PUT46+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 MAX6363PUT46+T meets industry standards.
7.What is the process for return or replacement of MAX6363PUT46+T?
All MAX6363PUT46+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6363PUT46+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 MAX6363PUT46+T part is unused and in its original packaging.
Return procedure for MAX6363PUT46+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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