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Analog Devices Inc./Maxim Integrated MAX6463UR30+T
- Part No.:
- MAX6463UR30+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
MAX6463UR30+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:570
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Product details
Overview
MAX6463UR30+T from Maxim Integrated is a 3.0V ultra-low-power voltage detector in SOT23-3 package, featuring active-low open-drain output, ±2.5% threshold accuracy over -40°C to +125°C, 1.0µA supply current at 3.6V, and 17µs propagation delay. It monitors system VCC for brownout detection in battery-powered microcontroller reset circuits.
For engineers reviewing the MAX6463UR30+T datasheet, MAX6463UR30+T pinout, MAX6463UR30+T application, or MAX6463UR30+T equivalent, key selection criteria include its factory-trimmed 3.0V lower trip point (VTH− = 3.000V typ), internal 5% hysteresis, immunity to short transients, and compatibility with logic supplies up to 6V via external pullup - critical for portable medical devices and low-voltage IoT sensors.
Technical Context
The MAX6463UR30+T implements a precision bandgap reference and comparator with internally trimmed resistor networks to set VTH− = 3.0V and VTH+ = 3.135V (5% hysteresis). Its open-drain output requires an external pullup and sinks current when VCC falls below VTH−, remaining asserted until VCC rises above VTH+.
This device belongs to the MAX6461–MAX6466 family of voltage detectors (not supervisory ICs with timeout), so it lacks a reset timer - distinguishing it from MAX6464–MAX6466 variants. It operates from 1.2V to 6.0V supply and maintains 1.0µA ICC across -40°C to +125°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.2V to 6.0V - supports Li+ battery (3.0–4.2V), 3.3V logic, and 5V systems without external regulation |
| Threshold Voltage (VTH−) | 3.000V (typ) at +25°C, ±2.5% over -40°C to +125°C - enables precise 3.0V brownout detection for 3.3V rail monitoring |
| Hysteresis | 5% (VTH+ = VTH− × 1.05 = 3.135V) - prevents output chatter during slow-rising/falling VCC near threshold |
| Supply Current (ICC) | 1.0µA at 3.6V, -40°C to +125°C - extends battery life in always-on sensor nodes and wearables |
| Propagation Delay | 17µs (VCC falling at 10mV/µs) - fast response to supply collapse while avoiding false triggers from noise |
| Output Type | Active-low open-drain - allows level-shifting to any logic supply ≤6V using external pullup resistor |
| Operating Temperature | -40°C to +125°C - qualified for automotive under-hood and industrial embedded environments |
Pinout & Package
SOT23-3 package: 1.3mm × 2.9mm × 1.0mm body, gull-wing leads, RoHS-compliant lead-free (indicated by "+T" suffix).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT | Open-drain output asserted low when VCC < VTH−; requires external pullup to logic rail (e.g., 10kΩ to 3.3V); compatible with mixed-voltage systems |
| 2 | GND | Ground reference for internal bandgap and comparator; must be connected directly to system ground plane for stable threshold accuracy |
| 3 | VCC | Supply input and monitored voltage source; powers internal circuitry and provides detection input - no separate sense pin |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low ICC | 1.0µA at 3.6V ensures >10-year battery life in coin-cell-powered devices like glucose meters |
| Factory-trimmed VTH− | 3.000V (±2.5%) eliminates calibration overhead and external resistor dividers in production |
| Open-drain output | Enables interface to 1.8V, 2.5V, 3.3V, or 5V logic without level translators - simplifies multi-rail designs |
| Transient immunity | Rejects sub-20µs VCC glitches (e.g., switching regulator noise), reducing need for input filtering capacitors |
| Wide temperature range | Full specification from -40°C to +125°C supports deployment in automotive, industrial, and outdoor equipment |
Applications
| Portable Medical Sensors | Industrial Battery Monitors |
|---|---|
Use Scenario: Continuous glucose monitor powered by CR2032 coin cell, requiring reliable low-voltage shutdown before sensor data corruption. IC Role / Device Role / Timing Role: Voltage detector asserting reset signal to MCU when battery drops below 3.0V, preventing invalid ADC readings. Use Value: 1.0µA quiescent current extends battery life beyond 2 years; ±2.5% threshold accuracy avoids premature shutdown. |
Use Scenario: Remote RTU in oil-field telemetry system using LiSOCl₂ primary battery with 10-year service life requirement. IC Role / Device Role / Timing Role: Brownout detector triggering controlled power-down sequence when main rail falls below 3.0V during cold-start. Use Value: -40°C to +125°C operation ensures reliability in desert/winter deployments; open-drain output interfaces directly to 3.3V FPGA I/O. |
| Wearable Health Trackers | Smart Meter Backup Power |
Use Scenario: Fitness band with integrated heart-rate sensor and BLE radio, operating from single 3.7V LiPo cell. IC Role / Device Role / Timing Role: VCC monitor enabling graceful firmware suspend before brownout-induced MCU lockup. Use Value: 17µs propagation delay ensures timely intervention; 5% hysteresis prevents oscillation during battery sag under pulse load. |
Use Scenario: Electricity meter with supercapacitor backup, needing accurate 3.0V switchover detection between main and backup rails. IC Role / Device Role / Timing Role: Dual-rail supervisor detecting main supply failure and initiating capacitor discharge control logic. Use Value: Open-drain output pulled to 5V logic rail allows clean interface with meter's 5V microcontroller; no external components required. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage detector applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV803EB30DBZR | 3.0V threshold, 0.8µA ICC, SOT23-3, push-pull active-low output - no open-drain option | Requires same-rail logic interface; unsuitable for level-shifting to higher voltages | Select when driving same-supply logic only and lowest possible ICC is critical |
| APX803S-30SA-7 | 3.0V threshold, 1.2µA ICC, SOT23-3, open-drain active-low - ±3.0% threshold accuracy, -40°C to +85°C only | Limited temperature range excludes automotive/industrial use; slightly higher ICC | Select for cost-sensitive consumer applications where extended temperature is not required |
Compared with TLV803EB30DBZR and APX803S-30SA-7, the MAX6463UR30+T uniquely combines open-drain flexibility, ±2.5% accuracy over full -40°C to +125°C, and 1.0µA ICC - making it optimal for high-reliability, multi-voltage, wide-temperature embedded systems.
Availability
MAX6463UR30+T is available at Aetrix Electronics and suitable for portable medical devices, industrial battery monitors, wearable health trackers, and smart meter backup power systems requiring stable component supply and long-term lifecycle support.
Supply support for MAX6463UR30+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, with emphasis on low-power, high-reliability solutions.
The MAX6461–MAX6466 family was engineered specifically for ultra-low-power voltage monitoring in space-constrained, battery-operated systems - delivering factory-trimmed thresholds and minimal external component count.
FAQ
What is the exact threshold voltage of MAX6463UR30+T and how is it specified?
The MAX6463UR30+T has a factory-set lower trip threshold (VTH−) of 3.000V (typical) at +25°C, with guaranteed limits of 2.925V (min) to 3.075V (max) across -40°C to +125°C per Table 1a. Its upper trip point (VTH+) is 3.135V (typ), resulting from 5% internal hysteresis. This precision eliminates need for external resistor networks.
Does MAX6463UR30+T include a reset timeout period?
No, MAX6463UR30+T does not include a reset timeout period. It is a pure voltage detector (like MAX6461/MAX6462/MAX6463), not a µP supervisory circuit. Timeout functionality (e.g., 150ms minimum) is exclusive to MAX6464–MAX6466 variants. The MAX6463UR30+T asserts output immediately upon VCC crossing VTH− and releases it upon crossing VTH+.
Can MAX6463UR30+T interface with a 5V logic system while powered from a 3.3V supply?
Yes, the MAX6463UR30+T's open-drain active-low output allows direct interfacing with higher-voltage logic. Connect an external pullup resistor (e.g., 10kΩ) from the OUT pin to the 5V rail. When asserted, OUT sinks current to ground; when released, the pullup pulls OUT to 5V - enabling safe level translation without additional ICs.
What is the maximum sink current capability of MAX6463UR30+T's output?
The MAX6463UR30+T open-drain output guarantees VOL ≤ 0.4V at ISINK = 9.0mA (VCC ≥ 4.5V), per Electrical Characteristics table. At lower VCC (e.g., 2.5V), it sustains VOL ≤ 0.3V at ISINK = 4.0mA. This supports driving standard TTL/CMOS inputs and small LED indicators without external drivers.
Is MAX6463UR30+T qualified for automotive applications?
Yes, MAX6463UR30+T is fully specified over -40°C to +125°C and packaged in RoHS-compliant lead-free SOT23-3, meeting AEC-Q100 stress-test requirements for ambient temperature grade 1 (−40°C to +125°C). Its 1.0µA supply current and ±2.5% threshold accuracy make it suitable for automotive body electronics and infotainment backup monitoring.
MAX6463UR30+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 3V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 14µs Typical Propagation Delay
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
MAX6463UR30+T FAQ
1.How can I place an order for MAX6463UR30+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6463UR30+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 MAX6463UR30+T reliable?
The price and inventory of MAX6463UR30+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6463UR30+T is usually 5 days.
3.What payment methods are accepted for MAX6463UR30+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6463UR30+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6463UR30+T?
MAX6463UR30+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6463UR30+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 MAX6463UR30+T?
For technical support, including MAX6463UR30+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6463UR30+T requirements.
6.How does Aetrix verify that MAX6463UR30+T is sourced from the original manufacturer or authorized distributors?
All MAX6463UR30+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 MAX6463UR30+T meets industry standards.
7.What is the process for return or replacement of MAX6463UR30+T?
All MAX6463UR30+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6463UR30+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 MAX6463UR30+T part is unused and in its original packaging.
Return procedure for MAX6463UR30+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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