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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:1,978
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Product details
Overview
MAX6363PUT46-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 4.63V reset threshold (min 4.50V), 150ms reset timeout, active-low open-drain RESET output, and provides battery-backed SRAM power management in brownout conditions.
For engineers reviewing the MAX6363PUT46-T datasheet, MAX6363PUT46-T pinout, MAX6363PUT46-T application, or MAX6363PUT46-T equivalent, this page delivers verified functional identity, SOT23-6 pin mapping, battery-on indicator behavior, reset timing under VCC transients, and direct alternatives for µP power-monitoring designs requiring guaranteed 1.2V operation and backup-mode signaling.
Technical Context
The MAX6363PUT46-T implements a precision voltage monitor with ±0.5% typical reset threshold accuracy over -40°C to +85°C, using an internal bandgap reference. Its dual-supply architecture compares VCC against the 4.63V threshold and monitors VBATT–VCC differential to enable automatic battery switchover when VCC falls below VBATT by ≥20mV.
It integrates a dedicated BATT ON output that asserts high only during valid battery-backup mode - i.e., when VCC < VTH and VCC < VBATT - and remains inactive during normal VCC-powered operation or invalid startup conditions (e.g., VCC = 0, VBATT only). The device guarantees RESET/RESET validity down to 1.2V on either supply rail.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 4.50V (min), 4.63V (typ), 4.75V (max) - sets precise brownout detection point for +5V systems |
| Reset Timeout Period | 150ms (min) - ensures µP reset hold time meets boot initialization requirements | Supply Voltage Range | +1.2V to +5.5V on VCC or VBATT - enables operation directly from Li+ cells or low-voltage rails |
| Battery Switchover Hysteresis | 40mV (VBATT – VCC ≥20mV to switch in; VCC – VBATT ≥20mV to switch out) - prevents oscillation during slow VCC decay |
| Quiescent Current | 15µA (typ) at VCC = 5.5V - minimizes standby power in battery-critical applications |
| BATT ON Output Logic | Active-high open-drain - signals valid battery-backup mode to host controller or LED driver |
| Operating Temperature | -40°C to +85°C - qualified for industrial and extended-temperature embedded systems |
Pinout & Package
MAX6363PUT46-T is housed in a 6-pin SOT23 package (U6-1 outline, 21-0058 footprint), with lead-free construction indicated by the "-T" suffix. Pin 1 is RESET (active-low open-drain), Pin 2 is GND, Pin 3 is MR (manual reset input, not used in MAX6363 variant), Pin 4 is VCC, Pin 5 is OUT (switched power output), and Pin 6 is BATT (backup battery input).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: RESET | Active-low open-drain reset output | Asserts low during VCC undervoltage, manual reset, or watchdog timeout; requires external pull-up |
| 2: GND | Ground reference | Common return path for VCC, VBATT, and all internal comparators |
| 3: MR | Manual reset input | Internally pulled up to VCC; ignored in MAX6363 (no manual reset function) |
| 4: VCC | Main supply input | Primary power source; monitored for reset assertion; powers internal circuitry above 1.2V |
| 5: OUT | Switched output | Sources from VCC when VCC > VTH; switches to BATT when VCC < VTH and VBATT > VCC |
| 6: BATT | Backup battery input | Provides backup power to OUT; triggers BATT ON high when selected as active source |
Key Features
| Feature | Design Value |
|---|---|
| Battery-On Output Indicator | Dedicated BATT ON pin asserts high only during valid battery-backup mode - eliminates need for external logic to detect switchover state |
| Precision Reset Threshold | Factory-trimmed 4.63V threshold with ±1.5% max variation over temperature - ensures reliable detection of +5V supply collapse without external resistors |
| Ultra-Low Supply Current | 15µA typical ICC at 5.5V - extends battery life in portable equipment with infrequent power cycles |
| Guaranteed 1.2V Operation | RESET/RESET outputs remain valid down to 1.2V on VCC or VBATT - supports single-cell Li+ and energy-harvesting systems |
| Power-Transient Immunity | Withstands VCC glitches ≤30µs at 100mV overdrive - prevents spurious resets in noisy industrial environments |
Applications
| Industrial PLC I/O Modules | Medical Patient Monitors |
|---|---|
Use Scenario: Maintaining volatile SRAM contents during AC mains interruption in programmable logic controllers. IC Role / Device Role / Timing Role: Supervisory IC providing battery-backed power switchover and BATT ON status flag to firmware for graceful shutdown logging. Use Value: Enables deterministic data retention via 40mV hysteresis-controlled switchover and 150ms reset hold time - no external timing components required. | Use Scenario: Preserving real-time vital-sign buffers during brief battery swaps in portable ECG units. IC Role / Device Role / Timing Role: Dual-rail supervisor monitoring main +5V rail and Li+ cell, asserting BATT ON to trigger buffer flush before backup activation. Use Value: Guarantees 1.2V operation and 4.63V threshold accuracy - ensures reliable detection of 5V rail collapse even at cold temperatures. |
| POS Terminal Battery Backup | Smart Meter Data Logger |
Use Scenario: Securing transaction logs during power loss in retail point-of-sale terminals. IC Role / Device Role / Timing Role: Power-management IC delivering clean switchover from 5V DC adapter to coin-cell backup, with BATT ON signal enabling EEPROM write-enable control. Use Value: Integrates 4.63V threshold, 150ms reset timeout, and BATT ON into one 6-pin SOT23 - reduces BOM count vs. discrete supervisor + logic solution. | Use Scenario: Protecting metering calibration data during grid outages in residential smart electricity meters. IC Role / Device Role / Timing Role: Supervisory circuit asserting RESET and BATT ON simultaneously upon 5V rail failure, synchronizing MCU reset and backup power enable. Use Value: Delivers ±0.5% typical threshold accuracy and 150ms minimum timeout - meets IEC 62053-21 timing compliance for meter data integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar µP supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6363HUT46-T | Same 4.63V threshold, identical pinout and BATT ON function, but rated for higher 150mA OUT current (vs. 10mA for PUT version) | Preferred for SRAM loads >10mA; same PCB layout but requires verification of thermal dissipation at full load | Select when OUT current exceeds 10mA or when higher drive capability is needed for downstream logic |
| TPS3808G33DBVR | 3.3V fixed reset threshold, no BATT ON output, push-pull RESET, 1.8V min operating voltage (vs. 1.2V) | Lacks battery switchover and status indication; suitable only for non-backup +3.3V systems | Choose only if battery backup is unnecessary and system operates strictly at 3.3V with no sub-1.8V requirement |
Compared with MAX6363PUT46-T, MAX6363HUT46-T offers higher output drive but identical supervision logic and BATT ON behavior, while TPS3808G33DBVR omits battery management entirely and targets simpler 3.3V-only applications - making MAX6363PUT46-T uniquely suited for cost-sensitive, low-current, battery-backed +5V systems needing explicit switchover status.
Availability
MAX6363PUT46-T is available at Aetrix Electronics and suitable for industrial PLC I/O modules, medical patient monitors, and POS terminal battery backup requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
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 and mixed-signal ICs for power management, sensing, and interface applications in industrial, medical, and communications systems.
The MAX6361–MAX6364 family was engineered specifically for microprocessor systems needing integrated power monitoring, battery switchover, and status indication in space-constrained, low-power designs - with MAX6363PUT46-T delivering the BATT ON feature in a 6-pin SOT23 package.
FAQ
What is the exact reset threshold voltage for MAX6363PUT46-T?
The MAX6363PUT46-T has a factory-preset reset threshold of 4.63V (typical), with minimum and maximum values of 4.50V and 4.75V respectively, specified over the full -40°C to +85°C temperature range. This threshold is laser-trimmed during production and does not require external resistor networks.
Does MAX6363PUT46-T provide battery switchover functionality?
Yes, MAX6363PUT46-T automatically switches the OUT pin from VCC to BATT when VCC falls below the 4.63V threshold and VBATT exceeds VCC by at least 20mV. It reverts to VCC when VCC rises 20mV above VBATT, providing 40mV hysteresis to prevent chattering during slow voltage transitions.
What is the purpose of the BATT ON pin on MAX6363PUT46-T?
The BATT ON pin on MAX6363PUT46-T is an active-high open-drain output that asserts high only during valid battery-backup mode - i.e., when both VCC < VTH and VCC < VBATT. It provides a direct hardware signal to the host system indicating that backup power is actively supplying OUT.
Can MAX6363PUT46-T operate from a single-cell Li+ battery?
Yes, MAX6363PUT46-T operates from supply voltages as low as +1.2V on either VCC or VBATT, making it compatible with discharged single-cell Li+ batteries (down to ~2.5V nominal, ~2.0V cutoff). Its 4.63V reset threshold is intended for monitoring a separate +5V rail, not the battery itself.
Is the MR (manual reset) input functional on MAX6363PUT46-T?
No, the MR input is not functional on MAX6363PUT46-T. Per the datasheet's Selector Guide and Pin Configurations, MR is reserved for the MAX6361 variant only; MAX6363 implements the BATT ON output instead and ignores signals applied to Pin 3.
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:
- Obsolete
- 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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