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Analog Devices Inc./Maxim Integrated MAX6463UK30+T
- Part No.:
- MAX6463UK30+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX6463UK30+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,939
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Product details
Overview
MAX6463UK30+T from Maxim Integrated is an ultra-low-power voltage detector with active-low open-drain output, 3.0V lower trip threshold (VTH−), ±2.5% threshold accuracy over −40°C to +125°C, 17µs propagation delay, and 1.0µA supply current at 3.6V - used for precision battery monitoring and noise-immune µP reset in portable medical devices and cellular phones.
For engineers reviewing the MAX6463UK30+T datasheet, MAX6463UK30+T pinout, MAX6463UK30+T application, or MAX6463UK30+T equivalent, key selection criteria include factory-set 3.0V detection threshold, open-drain output compatibility with mixed-voltage logic interfaces, guaranteed hysteresis (5%), and SOT23-5 lead-free packaging rated for automotive-grade temperature operation.
Technical Context
The MAX6463UK30+T implements a precision bandgap reference and comparator with internally trimmed resistor networks to set VTH− = 3.000V (±2.5%) and VTH+ = 3.135V (5% hysteresis), enabling reliable reset assertion during brownout without external components. Its open-drain output requires an external pullup but supports interfacing to logic supplies up to 6V independent of VCC.
Designed as a member of the MAX6461–MAX6466 family, it operates across 1.2V to 6.0V supply range and delivers immunity to short voltage transients via internal timing architecture - confirmed by the Maximum Transient Duration vs. Threshold Overdrive curve showing <20µs glitch rejection at 100mV overdrive.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.2V to 6.0V - supports direct monitoring of Li+ batteries (2.7–4.2V), 3.3V/5V rails, and low-voltage microcontroller domains. |
| Threshold Voltage (VTH−) | 3.000V ±2.5% (−40°C to +125°C) - factory-trimmed for no calibration required in production; matches nominal 3.3V system supply with 10% margin. |
| Threshold Hysteresis | 5% (VTH+ = VTH− × 1.05) - prevents output chatter during slow-rising/falling supply transitions near trip point. |
| Supply Current (ICC) | 1.0µA typical at 3.6V - enables >10-year battery life in always-on monitoring applications (e.g., wearable sensors). |
| Propagation Delay | 17µs (VCC falling at 10mV/µs) - ensures fast response to supply collapse while avoiding false triggers from sub-µs noise spikes. |
| Output Type | Active-low open-drain - allows level-shifting to higher logic voltages (e.g., 5V MCU reset input) using external pullup resistor. |
| Operating Temperature | −40°C to +125°C - qualified for under-hood automotive, industrial edge nodes, and portable medical equipment. |
Pinout & Package
SOT23-5 package (5-pin, lead-free, tape-and-reel); pin 1 = OUT (open-drain active-low), pin 2 = GND, pin 3 = N.C., pin 4 = GND, pin 5 = VCC. Dual GND pins reduce ground impedance and improve noise immunity in high-density PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Open-drain output | Asserts low when VCC < 3.0V; requires external pullup; sinks ≥1mA at 0.4V for robust logic-level compatibility. |
| 2 (GND) | Ground reference | Primary ground return path; must be connected to system ground plane for accurate threshold sensing. |
| 3 (N.C.) | No connection | Internally unconnected; must remain floating - no routing or soldering allowed. |
| 4 (GND) | Secondary ground | Reduces ground bounce and improves PSRR; both GND pins must be tied to same ground net. |
| 5 (VCC) | Supply & monitored input | Single node serves as power source and voltage sense point - eliminates need for external divider or buffer. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low ICC | 1.0µA at 3.6V - enables integration into energy-harvesting and coin-cell-powered systems without compromising runtime. |
| Factory-set 3.0V threshold | VTH− = 3.000V ±2.5% over full temperature range - eliminates manual trimming, reduces BOM count, and accelerates design-in. |
| 5% internal hysteresis | VTH+ = 3.135V - ensures clean, chatter-free reset deassertion during power-up sequencing in noisy environments. |
| Open-drain output | Compatible with 0–6V pullup supplies - supports reset signaling to 1.8V, 3.3V, or 5V logic domains without level translators. |
| Transient immunity | Rejects ≤20µs glitches at 100mV overdrive - protects against ESD-induced supply dips and switching noise in DC/DC converter outputs. |
Applications
| Portable Medical Sensors | Cellular Phone Power Management |
|---|---|
Use Scenario: Continuous glucose monitor powered by CR2032 coin cell with 2.0–3.0V operating range. IC Role / Device Role / Timing Role: Voltage detector asserting reset to MCU when battery drops below 3.0V, preventing corrupted sensor readings or unsafe low-power operation. Use Value: 1.0µA quiescent current extends battery life beyond 2 years; 5% hysteresis avoids repeated resets during transient load surges. |
Use Scenario: Baseband processor power rail supervision during RF transmission bursts causing momentary 100mV supply sag. IC Role / Device Role / Timing Role: Open-drain output pulls down processor reset line when VCC falls below 3.0V, holding system in safe state until stable power resumes. Use Value: Immunity to ≤20µs transients prevents spurious resets; 3.0V threshold aligns with 3.3V LDO dropout margin. |
| Industrial IoT Edge Node | Wearable Health Tracker |
Use Scenario: LoRaWAN sensor node deployed in unheated outdoor enclosures (-40°C to +85°C ambient). IC Role / Device Role / Timing Role: Monitors 3.3V system rail derived from solar-charged LiPo battery; asserts reset if cold-temperature voltage droop exceeds specification. Use Value: Guaranteed ±2.5% threshold accuracy over −40°C to +125°C ensures reliable operation without derating or guard-banding. |
Use Scenario: Optical heart-rate sensor module powered by 3.0V regulated supply with tight 100mV tolerance. IC Role / Device Role / Timing Role: Detects undervoltage on 3.0V rail and forces controlled shutdown before analog front-end ADC saturation occurs. Use Value: 17µs propagation delay enables timely intervention before data corruption; SC70/SOT23 footprint minimizes board area. |
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, ±1% accuracy, 0.5µA ICC, SOT23-3, push-pull active-low output | Lacks open-drain flexibility; no dual-GND; tighter accuracy but no transient immunity spec | Choose TLV803EB30DBZR only if push-pull drive suffices and sub-1% threshold tolerance is mandatory. |
| APX803S-30SA-7 | 3.0V threshold, ±2% accuracy, 0.9µA ICC, SOT23-3, open-drain active-low output | Same open-drain interface but single-GND; not specified beyond +85°C; no published transient immunity data | Choose APX803S-30SA-7 only for cost-sensitive commercial applications within 0°C–85°C ambient. |
Compared with TLV803EB30DBZR and APX803S-30SA-7, the MAX6463UK30+T uniquely combines open-drain output, dual-GND layout support, −40°C to +125°C qualification, and documented 20µs transient immunity - making it the only option suitable for ruggedized portable medical and automotive-adjacent designs.
Availability
MAX6463UK30+T is available at Aetrix Electronics and suitable for portable medical devices, cellular phone power management, and industrial IoT edge nodes requiring stable component supply with long-term lifecycle assurance.
Supply support for MAX6463UK30+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 demanding environments.
The MAX6461–MAX6466 family was engineered specifically for ultra-low-power voltage monitoring in battery-critical systems - delivering factory-trimmed thresholds, nanoscale current consumption, and robust transient immunity without external components.
FAQ
What is the exact voltage threshold of MAX6463UK30+T and how is it guaranteed?
The MAX6463UK30+T has a factory-set lower trip threshold (VTH−) of 3.000V with ±2.5% accuracy over −40°C to +125°C, verified by 100% production testing at +25°C and design-guaranteed limits across temperature. This value is fixed by internal laser-trimmed resistors and does not require external calibration. The upper threshold (VTH+) is 3.135V, providing 5% hysteresis to prevent oscillation near the trip point.
Does MAX6463UK30+T require external components to operate?
No, the MAX6463UK30+T requires no external components for basic voltage detection functionality. Its precision bandgap reference, comparator, and trimmed resistor network are fully integrated. Only an external pullup resistor is needed on the open-drain OUT pin to establish the high-state logic level - typically 10kΩ to 100kΩ depending on rise-time and bus capacitance requirements.
Can MAX6463UK30+T interface with a 5V microcontroller reset input while powered from a 3.3V supply?
Yes, the MAX6463UK30+T's open-drain active-low output allows direct interfacing with 5V logic. Connect the OUT pin to the MCU reset input through a pullup resistor to 5V. When VCC drops below 3.0V, the device pulls OUT low (≤0.4V at 9mA sink), satisfying the 5V MCU's reset assertion requirement. This eliminates level-shifters and simplifies mixed-voltage system design.
How does MAX6463UK30+T handle short voltage transients on the VCC line?
The MAX6463UK30+T is designed to reject short-duration transients: its functional diagram and Typical Operating Characteristics confirm immunity to glitches ≤20µs wide when the overdrive (VTH− − VCC) is ≥100mV. This is achieved via internal filtering and comparator hysteresis, making it suitable for use downstream of noisy DC/DC converters or in ESD-prone environments without additional RC filtering.
What is the significance of the dual GND pins in the SOT23-5 package of MAX6463UK30+T?
The dual GND pins (pins 2 and 4) in the MAX6463UK30+T's SOT23-5 package reduce ground loop impedance and improve power supply rejection ratio (PSRR). This configuration minimizes ground bounce during output switching and enhances noise immunity in high-speed or high-current PCB layouts - a critical advantage over 3-pin alternatives like SOT23-3 or SC70-3 packages.
MAX6463UK30+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- 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-23-5
MAX6463UK30+T FAQ
1.How can I place an order for MAX6463UK30+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6463UK30+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 MAX6463UK30+T reliable?
The price and inventory of MAX6463UK30+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6463UK30+T is usually 5 days.
3.What payment methods are accepted for MAX6463UK30+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6463UK30+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6463UK30+T?
MAX6463UK30+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6463UK30+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 MAX6463UK30+T?
For technical support, including MAX6463UK30+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6463UK30+T requirements.
6.How does Aetrix verify that MAX6463UK30+T is sourced from the original manufacturer or authorized distributors?
All MAX6463UK30+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 MAX6463UK30+T meets industry standards.
7.What is the process for return or replacement of MAX6463UK30+T?
All MAX6463UK30+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6463UK30+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 MAX6463UK30+T part is unused and in its original packaging.
Return procedure for MAX6463UK30+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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