My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX6363HUT29-T
- Part No.:
- MAX6363HUT29-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6363HUT29-T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:3,127
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX6363HUT29-T from Maxim Integrated is a SOT23-6 battery-backup supervisory IC for microprocessor systems, providing battery-on indication, precision 2.93V reset threshold, 150ms reset timeout, and VCC-to-OUT switchover control down to 1.2V supply. It enables reliable SRAM backup during brownout in portable instrumentation and industrial controllers.
For engineers reviewing the MAX6363HUT29-T datasheet, MAX6363HUT29-T pinout, MAX6363HUT29-T application, or MAX6363HUT29-T equivalent, key selection criteria include battery-on output logic behavior, guaranteed 1.2V operation, 2.93V factory-preset reset threshold, and SOT23-6 thermal performance across –40°C to +85°C.
Technical Context
This device implements a dual-path power switch: when VCC ≥ VTH (2.93V), OUT is sourced from VCC; when VCC falls below VTH and VBATT > VCC + 20mV, an internal MOSFET connects BATT to OUT with ≤2.7Ω on-resistance at 2.8V. The BATT ON output asserts high only in validated battery-backup mode - not during startup or if VCC remains active.
Reset assertion is triggered by VCC falling below 2.93V, with propagation delay <280µs and guaranteed reset validity down to 1.2V. The 150ms minimum timeout ensures µP initialization completes before release, while power-supply transient immunity rejects 100mV/30µs glitches per typical characterization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.93V ±1.5% - factory-trimmed for precise 3.0V system monitoring without external resistors |
| Reset Timeout Period | 150ms min - guarantees full µP boot sequence completion before reset deassertion |
| Operating Supply Range | +1.2V to +5.5V - supports ultra-low-voltage operation during battery fallback |
| Battery-On Output Logic | Active-high open-drain - signals valid battery-backup mode only when VCC < VTH and VBATT > VCC + 20mV |
| VCC-to-OUT On-Resistance | 2.7Ω max at 2.3V/25mA - minimizes voltage drop and self-heating during primary supply operation |
| BATT-to-OUT On-Resistance | 2.7Ω max at 2.8V/25mA - ensures stable SRAM retention voltage under backup conditions |
| Supply Current (VCC) | 15µA typ at 2.8V - extends battery life in always-on monitoring applications |
Pinout & Package
Package: 6-pin SOT23 (U6-1, outline 21-0058), footprint 90-0175, RoHS-compliant lead-free (indicated by "+T" suffix; this part uses "-T" standard leaded).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: RESET | Active-high open-drain reset output | Asserts high during reset events; requires external pull-up; compatible with 1.2V–5.5V logic domains |
| 2: GND | Ground reference | Common return for VCC, BATT, and all internal comparators; must be low-impedance |
| 3: MR | Manual reset input | Debounced TTL/CMOS-compatible input; internal 20kΩ pull-up to VCC; ignored in battery-backup mode |
| 4: VCC | Main supply input | Primary power source; monitored for reset; powers internal circuitry and drives OUT when active |
| 5: OUT | Power output | Switches between VCC and BATT; sources up to 150mA; directly powers SRAM or real-time clock |
| 6: BATT | Backup battery input | Accepts 2.0V–5.5V battery; enables switchover only when VCC < VTH and VBATT > VCC + 20mV |
Key Features
| Feature | Design Value |
|---|---|
| Battery-On output indicator | Provides unambiguous status signal confirming valid battery-backup engagement - eliminates software polling or external sensing |
| Factory-trimmed 2.93V reset threshold | Eliminates external resistor network and associated tolerance stack-up for 3.0V rail monitoring |
| 1.2V guaranteed operation | Ensures continuous supervision and reset assertion even as primary supply decays below 1.5V |
| 40mV switchover hysteresis | Prevents oscillation during slow VCC decay by requiring 20mV rise above VBATT before reversion to main supply |
| 150ms reset timeout with temperature stability | Maintains ≥140ms minimum across –40°C to +85°C - critical for reliable µP initialization in industrial environments |
Applications
| Portable Medical Monitors | Industrial PLC I/O Modules |
|---|---|
Use Scenario: Continuous ECG waveform logging during AC power loss in handheld patient monitors. IC Role / Device Role / Timing Role: Supervisory IC enabling seamless transition from wall adapter to coin-cell backup while asserting BATT ON to trigger low-power data compression firmware. Use Value: Prevents data loss via deterministic 2.93V brownout detection and 150ms reset hold - verified across –20°C to +70°C operating range. | Use Scenario: Maintaining configuration memory and real-time clock in DIN-rail mounted programmable logic controllers during mains interruption. IC Role / Device Role / Timing Role: Battery-backed power supervisor managing SRAM retention and signaling backup activation to host controller via BATT ON line. Use Value: Guarantees 1.2V operation and 2.7Ω BATT-to-OUT resistance - ensuring ≥2.5V SRAM supply even at 2.3V battery voltage. |
| Smart Energy Meters | Ruggedized Handheld Testers |
Use Scenario: Preserving tariff data and time-of-use logs during grid voltage sags in ANSI C12.20-compliant meters. IC Role / Device Role / Timing Role: Precision reset supervisor with 2.93V threshold aligned to 3.0V meter SoC supply, coordinating backup switchover and tamper-event latching. Use Value: Delivers ±1.5% threshold accuracy and 100ns glitch immunity - meeting IEC 62053-21 transient robustness requirements. | Use Scenario: Enabling instant-on functionality after battery replacement in field-deployed multimeters and insulation testers. IC Role / Device Role / Timing Role: Low-quiescent-current supervisor maintaining RTC and calibration storage during battery swaps without full reboot. Use Value: Draws only 15µA from VCC and 0.05µA from BATT - extending shelf life beyond 10 years in storage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6363HUT31-T | 3.08V reset threshold (vs. 2.93V); identical pinout, timing, and BATT ON function | Suitable for 3.3V systems requiring higher trip point to avoid false resets during nominal ripple | Select when system VCC nominal is 3.3V with ±5% tolerance and brownout margin must exceed 250mV |
| TPS3808G33DBVR | 3.3V fixed threshold; push-pull active-low reset; no BATT ON output; 1.2V operation supported | Lacks battery switchover and status indication - requires external MOSFET and logic for backup management | Choose only if BATT ON signal is unnecessary and reset polarity must be active-low push-pull |
Compared with MAX6363HUT31-T, the MAX6363HUT29-T provides tighter alignment to 3.0V rails and lower trip margin for early brownout response; versus TPS3808G33DBVR, it integrates battery control and status reporting - eliminating two external components and PCB area.
Availability
MAX6363HUT29-T is available at Aetrix Electronics and suitable for portable medical monitors, industrial PLC I/O modules, smart energy meters, and ruggedized handheld testers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6363HUT29-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, automotive, and communications markets.
The MAX6361–MAX6364 family was engineered specifically for battery-backed µP supervision - integrating reset generation, manual reset, watchdog (in variants), and intelligent power switchover in a 6-pin SOT23 package.
FAQ
What is the exact reset threshold voltage of the MAX6363HUT29-T?
The MAX6363HUT29-T has a factory-trimmed reset threshold of 2.93V, with ±1.5% tolerance over –40°C to +85°C. This value is laser-trimmed during production and specified in the Electrical Characteristics table under "MAX636_UT29" ordering code. It is optimized for monitoring 3.0V power rails where early brownout detection is required.
Does the MAX6363HUT29-T provide battery switchover functionality?
Yes, the MAX6363HUT29-T automatically switches the OUT pin from VCC to BATT when VCC falls below 2.93V and VBATT exceeds VCC by at least 20mV. An internal MOSFET enables this transition with ≤2.7Ω on-resistance at 2.8V, and the BATT ON pin asserts high only during confirmed battery-backup operation - not during startup or marginal conditions.
What is the function of the BATT ON pin on the MAX6363HUT29-T?
The BATT ON pin on the MAX6363HUT29-T is an active-high open-drain output that signals valid battery-backup mode. It goes high only when both conditions are met: VCC < 2.93V and VBATT > VCC + 20mV. It remains low during normal VCC operation, startup, or if VBATT is insufficient - providing unambiguous hardware status for firmware or external logic.
Can the MAX6363HUT29-T operate with a 1.2V supply?
Yes, the MAX6363HUT29-T guarantees full functionality - including reset assertion, BATT ON indication, and OUT switching - down to 1.2V on either VCC or VBATT. Its internal comparators and logic remain operational at this voltage, and the RESET output remains valid (logic high) even at 1.2V, enabling compatibility with ultra-low-voltage µPs and memory devices.
What is the reset timeout period of the MAX6363HUT29-T and how is it affected by temperature?
The MAX6363HUT29-T guarantees a minimum reset timeout period of 150ms after VCC rises above 2.93V. Typical values range from 190ms at –40°C to 210ms at +85°C, with all units meeting ≥140ms across the full –40°C to +85°C range. This ensures µP initialization completes reliably regardless of ambient conditions.
MAX6363HUT29-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:
- 2.93V
- Output:
- Open Drain or Open Collector
- Reset:
- Active High
- Reset Timeout:
- 150ms Minimum
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-6
MAX6363HUT29-T FAQ
1.How can I place an order for MAX6363HUT29-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6363HUT29-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 MAX6363HUT29-T reliable?
The price and inventory of MAX6363HUT29-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6363HUT29-T is usually 5 days.
3.What payment methods are accepted for MAX6363HUT29-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6363HUT29-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6363HUT29-T?
MAX6363HUT29-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6363HUT29-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 MAX6363HUT29-T?
For technical support, including MAX6363HUT29-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6363HUT29-T requirements.
6.How does Aetrix verify that MAX6363HUT29-T is sourced from the original manufacturer or authorized distributors?
All MAX6363HUT29-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 MAX6363HUT29-T meets industry standards.
7.What is the process for return or replacement of MAX6363HUT29-T?
All MAX6363HUT29-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6363HUT29-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 MAX6363HUT29-T part is unused and in its original packaging.
Return procedure for MAX6363HUT29-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6363HUT29-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…
