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Analog Devices Inc./Maxim Integrated MAX6380XR41-T
- Part No.:
- MAX6380XR41-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
MAX6380XR41-T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,276
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Product details
Overview
MAX6380XR41-T from Maxim Integrated is an ultra-low-power, open-drain, active-low voltage detector with a factory-trimmed 4.100V threshold (±2.5% over temperature), 500nA supply current, and operation down to 1V VCC. It monitors regulated system or battery voltages in portable equipment and asserts OUT low when VCC falls below VTH.
For engineers reviewing the MAX6380XR41-T datasheet, MAX6380XR41-T pinout, MAX6380XR41-T application, or MAX6380XR41-T equivalent, this device serves as a precision reset supervisor for microcontrollers in space-constrained, battery-sensitive designs requiring stable trip-point accuracy and transient immunity.
Technical Context
The MAX6380XR41-T implements a precision bandgap reference and comparator with internally trimmed resistors to set its 4.100V detection threshold. Its open-drain output sinks current when asserted and requires an external pull-up to any supply ≤5.5V.
It features built-in immunity to fast negative-going VCC transients-maximum allowable glitch duration decreases as threshold overdrive increases-and guarantees correct logic state down to 1V VCC, enabling reliable operation during brownout conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Threshold Voltage | 4.100V ±2.5% over -40°C to +85°C - ensures accurate reset assertion across industrial temperature range |
| Supply Current | 500nA typical - enables multi-year battery life in coin-cell-powered devices |
| Output Type | Active-low open-drain - supports flexible logic-level interfacing via external pull-up resistor |
| VCC Operating Range | 1.2V to 5.5V - functions during deep brownout and up to standard logic rail voltages |
| Hysteresis | 100mV - prevents output chatter near threshold during slow VCC recovery |
| Propagation Delay | 9.5µs max (falling edge) - provides timely reset assertion without excessive latency |
| Tempco | 40ppm/°C - maintains tight threshold stability over temperature drift |
Pinout & Package
MAX6380XR41-T is packaged in a 3-pin SC70-3 (lead-free, tape-and-reel). Pin 1 = GND, Pin 2 = OUT (open-drain, active-low), Pin 3 = VCC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Reference ground return path for internal bandgap and comparator |
| 2 | OUT | Open-drain output; sinks current when VCC < VTH; requires external pull-up |
| 3 | VCC | Supply input; powers internal circuitry and defines monitored voltage rail |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low 500nA supply current | Extends battery life in always-on monitoring applications such as wearables and IoT sensors |
| ±2.5% threshold accuracy over temperature | Eliminates need for external calibration or trimming in production systems |
| 100mV hysteresis | Prevents false resets during noisy or slowly recovering power rails |
| Open-drain output with 5.5V tolerance | Enables level-shifting to higher-voltage logic domains (e.g., 3.3V MCU controlling 5V peripheral) |
| No external components required | Reduces BOM count, PCB area, and assembly cost versus discrete resistor-divider + comparator solutions |
Applications
| Battery-Powered Microcontroller Reset | DC/DC Converter Power-Good Monitoring |
|---|---|
|
Use Scenario: A lithium-ion powered MCU system must assert a clean reset signal before firmware initialization when battery voltage drops below safe operating level. IC Role / Device Role / Timing Role: Voltage detector providing active-low reset pulse to MCU's RESET pin upon VCC falling below 4.100V. Use Value: Prevents undefined MCU behavior and flash corruption by ensuring reset remains asserted until VCC recovers above hysteresis threshold (4.200V). |
Use Scenario: A 5V-output DC/DC converter supplies power to analog front-end circuitry requiring stable operation above 4.0V. IC Role / Device Role / Timing Role: Supervisory monitor asserting fault flag when converter output dips below 4.100V. Use Value: Enables immediate shutdown or alerting before analog performance degrades due to undersupply. |
| Portable Medical Sensor Self-Test | Smart Meter Low-Voltage Warning |
|
Use Scenario: A handheld glucose meter performs self-test at power-on and must halt if battery voltage is insufficient to drive sensor bias accurately. IC Role / Device Role / Timing Role: Threshold detector triggering diagnostic abort and LCD warning when VCC < 4.100V. Use Value: Guarantees measurement validity by preventing operation outside specified analog supply range. |
Use Scenario: An AMI smart meter logs battery-backed real-time clock data but must warn utility of imminent backup battery depletion. IC Role / Device Role / Timing Role: Low-power supervisor monitoring 3.6V backup rail and pulling interrupt line low at 4.100V threshold. Use Value: Provides early warning with minimal quiescent current draw-preserving backup energy for critical timekeeping. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage detector applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV803EB33DBZR | 3.3V fixed threshold, SOT23-3, 350nA ICC, push-pull active-low output | Lacks open-drain flexibility; not suitable for mixed-voltage pull-up domains | Select when board uses only 3.3V logic and layout cannot accommodate external pull-up |
| TPS3808G33DBVR | 3.3V threshold, SOT23-6, 800nA ICC, adjustable delay, push-pull output | Higher supply current and larger package; includes programmable reset timeout | Choose when reset timing control is required and 500nA ultra-low ICC is not mandatory |
Compared with TLV803EB33DBZR and TPS3808G33DBVR, MAX6380XR41-T offers precise 4.100V detection, open-drain compatibility with diverse logic families, and lowest ICC-making it optimal for compact, battery-critical 4.1V supervision where external pull-up is acceptable.
Availability
MAX6380XR41-T is available at Aetrix Electronics and suitable for portable medical devices, smart meters, and battery-powered microcontroller systems requiring stable component supply, long-term lifecycle support, and lead-free compliance.
Supply support for MAX6380XR41-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 high-performance analog, mixed-signal, and power-management ICs for industrial, automotive, communications, and consumer applications.
The MAX6375–MAX6380 family delivers ultra-low-power, factory-trimmed voltage supervision for space- and energy-constrained systems-targeting portable, battery-operated, and always-on embedded devices.
FAQ
What is the exact threshold voltage of MAX6380XR41-T and how stable is it over temperature?
The MAX6380XR41-T has a nominal threshold voltage of 4.100V, with guaranteed accuracy of ±2.5% over the full -40°C to +85°C operating range. Its 40ppm/°C tempco ensures minimal drift, and hysteresis of 100mV prevents oscillation during slow VCC recovery. This stability eliminates need for recalibration in field-deployed equipment.
Does MAX6380XR41-T require external components to operate?
No, MAX6380XR41-T requires no external components for basic voltage detection functionality. Its precision bandgap reference, comparator, and trimmed resistors are fully integrated. Only an external pull-up resistor on the open-drain OUT pin is needed for logic-level translation-no voltage dividers, capacitors, or trimming networks are necessary.
Can MAX6380XR41-T operate when VCC drops below 2.0V?
Yes, MAX6380XR41-T guarantees correct output logic state down to VCC = 1.0V, and its functional operating range starts at 1.2V. This allows reliable reset assertion during deep brownout conditions-critical for preserving state in microcontrollers and nonvolatile memory before power collapse.
What package type and lead finish does MAX6380XR41-T use?
MAX6380XR41-T is supplied in a 3-pin SC70-3 package with lead-free (RoHS-compliant) finish. The "-T" suffix denotes tape-and-reel packaging; lead-free ordering uses "+T". The SC70-3 footprint measures 2.0mm × 2.1mm × 0.95mm, supporting high-density PCB layouts in portable devices.
How does MAX6380XR41-T handle power supply transients?
MAX6380XR41-T is designed to ignore fast negative-going VCC transients. Its internal architecture filters glitches based on amplitude and duration: for example, a 100mV overdrive (VTH − VCC = 100mV) tolerates transients up to ~300µs without false triggering. This immunity is documented in the "Maximum Transient Duration vs. Threshold Overdrive" graph in the datasheet.
MAX6380XR41-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Voltage Detector
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 4.1V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-3
MAX6380XR41-T FAQ
1.How can I place an order for MAX6380XR41-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6380XR41-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 MAX6380XR41-T reliable?
The price and inventory of MAX6380XR41-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6380XR41-T is usually 5 days.
3.What payment methods are accepted for MAX6380XR41-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6380XR41-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6380XR41-T?
MAX6380XR41-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6380XR41-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 MAX6380XR41-T?
For technical support, including MAX6380XR41-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6380XR41-T requirements.
6.How does Aetrix verify that MAX6380XR41-T is sourced from the original manufacturer or authorized distributors?
All MAX6380XR41-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 MAX6380XR41-T meets industry standards.
7.What is the process for return or replacement of MAX6380XR41-T?
All MAX6380XR41-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6380XR41-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 MAX6380XR41-T part is unused and in its original packaging.
Return procedure for MAX6380XR41-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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