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Analog Devices Inc./Maxim Integrated MAX6376XR25+T
- Part No.:
- MAX6376XR25+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
MAX6376XR25+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,423
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Product details
Overview
MAX6376XR25+T from Maxim Integrated is an ultra-low-power, active-high push-pull voltage detector optimized for battery and power-supply monitoring in portable systems. It features a factory-trimmed 2.50V threshold (±2.5% over temperature), 500nA supply current, and guaranteed operation down to 1V VCC - enabling reliable brownout detection in Li+-powered wearables and IoT sensors.
For engineers reviewing the MAX6376XR25+T datasheet, MAX6376XR25+T pinout, MAX6376XR25+T application, or MAX6376XR25+T equivalent, this device delivers precise reset assertion during supply droop, supports fast transient immunity up to 200µs at 100mV overdrive, and integrates all reference and comparator circuitry without external components.
Technical Context
The MAX6376XR25+T implements a precision bandgap reference and comparator with internally trimmed resistors to set its 2.50V trip point. Its active-high push-pull output asserts logic high when VCC falls below threshold and remains valid down to 1V supply - ensuring deterministic reset behavior across full industrial temperature range (–40°C to +85°C).
Designed for immunity to short negative-going transients, it tolerates glitches up to 200µs duration when VCC dips 100mV below VTH. Propagation delay is 6.3µs (typical) for falling-edge detection, with ±2.5% threshold accuracy maintained over temperature via low-tempco design (40ppm/°C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.50V ±2.5% (–40°C to +85°C); enables accurate brownout detection for 2.5V/2.7V rail monitoring |
| Supply Current | 500nA (typical); extends battery life in multi-year coin-cell applications |
| Output Type | Active-high push-pull; drives MCU reset pin directly without pull-up resistor |
| VCC Operating Range | 1.2V to 5.5V; functions reliably during deep brownout and post-power-up sequencing |
| Propagation Delay | 6.3µs (typical); ensures timely system reset before critical logic corruption |
| Threshold Hysteresis | 100mV (typical); prevents chatter during slow-rising/falling supply transitions |
| Tempco | 40ppm/°C; maintains tight threshold stability across industrial temperature range |
Pinout & Package
MAX6376XR25+T is housed in a lead-free 3-pin SC70 package (2.0mm × 1.25mm × 0.9mm), optimized for space-constrained PCB layouts in portable electronics.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for internal bandgap and comparator; must be low-impedance connection to system ground plane |
| 2 | OUT | Active-high push-pull output; sources up to 500µA (VOH ≥0.8×VCC) and sinks up to 1.2mA (VOL ≤0.4V) |
| 3 | VCC | Supply input; powers internal circuitry and defines detection domain; accepts 1.2V–5.5V with no external decoupling required |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 500nA enables >10-year battery life in always-on sensor nodes |
| Factory-trimmed threshold | 2.50V ±2.5% eliminates calibration effort and reduces BOM count |
| Push-pull active-high output | Direct interface to ARM Cortex-M reset pins without external pull-up |
| Transient immunity | Rejects VCC glitches ≤200µs at 100mV overdrive - prevents false resets |
| No external components | Integrated reference, comparator, and resistor network reduce layout area by 2.5mm² vs discrete solutions |
Applications
| Battery-Powered Wearables | Industrial Sensor Nodes |
|---|---|
Use Scenario: Continuous heart-rate monitoring using CR2032 battery with 2.5V LDO output. IC Role / Device Role / Timing Role: Voltage detector asserting MCU reset when battery drops below 2.5V to prevent data corruption. Use Value: 500nA current draw extends operational lifetime beyond 3 years; ±2.5% threshold ensures consistent shutdown before brownout-induced firmware lockup. | Use Scenario: Wireless vibration sensor deployed in oil-field equipment with 2.7V regulated supply. IC Role / Device Role / Timing Role: Supervisory circuit triggering safe shutdown during power sag caused by motor startup transients. Use Value: 6.3µs propagation delay and 100mV hysteresis prevent nuisance resets during 50ms supply dips; SC70 footprint saves 40% board area vs SOIC-8 alternatives. |
| Medical Diagnostic Handhelds | Smart Meter Battery Backup |
Use Scenario: Portable ECG device powered by dual AA cells with 2.5V buck converter output. IC Role / Device Role / Timing Role: Active-high reset generator tied to microcontroller's nRESET pin to enforce clean boot after low-voltage recovery. Use Value: Push-pull output eliminates need for external pull-up resistor - reducing component count and improving reliability in high-humidity environments. | Use Scenario: Electricity meter retaining real-time clock and memory during AC mains failure using supercapacitor backup. IC Role / Device Role / Timing Role: Brownout detector monitoring 2.5V backup rail to initiate graceful SRAM save before power loss. Use Value: Guaranteed operation down to 1V VCC ensures reset assertion even as supercapacitor discharges to end-of-life voltage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage detector applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV803EB25DBZR | 2.5V threshold, 350nA ICC, SOT23-3 package, open-drain output | Requires external pull-up; lower supply current but incompatible output logic | Select when lowest possible ICC is critical and system supports open-drain reset signaling |
| TPS3808G125DBVR | 2.5V threshold, 1.1µA ICC, SOT23-6 package, adjustable delay, push-pull active-low | Higher current, larger footprint, inverted logic - requires signal inversion or MCU pin remapping | Select when programmable reset timeout is required and active-low reset architecture is already established |
Compared with TLV803EB25DBZR and TPS3808G125DBVR, the MAX6376XR25+T uniquely combines ultra-low 500nA current, active-high push-pull output, and SC70 packaging - eliminating both external components and logic-level translation in compact battery-powered designs.
Availability
MAX6376XR25+T is available at Aetrix Electronics and suitable for battery-powered wearables, industrial sensor nodes, and medical handhelds requiring stable component supply and long-term lifecycle support.
Supply support for MAX6376XR25+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) is a semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, automotive, and communications markets.
The MAX6375–MAX6380 family was designed specifically for ultra-low-power voltage supervision in portable and energy-harvesting systems - delivering precision threshold detection with zero external components and nanoscale current consumption.
FAQ
What is the exact reset threshold voltage of MAX6376XR25+T and how tightly is it specified?
The MAX6376XR25+T has a nominal reset threshold of 2.50V, with a tolerance of ±2.5% over the full industrial temperature range (–40°C to +85°C). This specification is guaranteed by design and confirmed through characterization - meaning the actual threshold will fall between 2.437V and 2.562V at temperature extremes, ensuring robust brownout detection without calibration.
Does MAX6376XR25+T require any external components to operate?
No, the MAX6376XR25+T requires zero external components. Its precision bandgap reference, comparator, and threshold-setting resistors are fully integrated and factory-trimmed. Unlike discrete supervisor circuits, it needs no external capacitors, resistors, or pull-up networks - simplifying layout and reducing bill-of-materials cost.
What package type and dimensions does MAX6376XR25+T use?
The MAX6376XR25+T uses a lead-free 3-pin SC70 package measuring 2.0mm × 1.25mm × 0.9mm. This compact outline is ideal for space-constrained applications such as hearing aids, smart patches, and miniature IoT sensors where PCB real estate is at a premium.
How does the active-high push-pull output of MAX6376XR25+T interface with common microcontrollers?
The MAX6376XR25+T's active-high push-pull output directly drives standard CMOS reset inputs (e.g., STM32 NRST, ESP32 CHIP_PU) without external pull-up resistors. When VCC drops below 2.50V, OUT asserts high (≥0.8×VCC), satisfying typical MCU reset voltage thresholds; when VCC recovers, OUT returns low within 6.3µs - enabling clean, glitch-free reboots.
What is the minimum operating supply voltage for MAX6376XR25+T, and does it remain functional during deep brownout?
The MAX6376XR25+T operates down to 1.2V and guarantees correct output logic state (high when VCC < VTH) for VCC as low as 1V - well below its 2.50V threshold. This ensures reliable reset assertion even during severe brownout conditions, such as supercapacitor discharge or battery end-of-life, preventing undefined MCU behavior.
MAX6376XR25+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:
- 2.5V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active High
- Reset Timeout:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-3
MAX6376XR25+T FAQ
1.How can I place an order for MAX6376XR25+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6376XR25+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 MAX6376XR25+T reliable?
The price and inventory of MAX6376XR25+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6376XR25+T is usually 5 days.
3.What payment methods are accepted for MAX6376XR25+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6376XR25+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6376XR25+T?
MAX6376XR25+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6376XR25+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 MAX6376XR25+T?
For technical support, including MAX6376XR25+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6376XR25+T requirements.
6.How does Aetrix verify that MAX6376XR25+T is sourced from the original manufacturer or authorized distributors?
All MAX6376XR25+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 MAX6376XR25+T meets industry standards.
7.What is the process for return or replacement of MAX6376XR25+T?
All MAX6376XR25+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6376XR25+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 MAX6376XR25+T part is unused and in its original packaging.
Return procedure for MAX6376XR25+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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