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Analog Devices Inc./Maxim Integrated MAX6376UR26+
- Part No.:
- MAX6376UR26+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
MAX6376UR26+.pdf
- Description:
- MAX6376 3-PIN, ULTRA-LOW-POWER V
- Quantity:
- Payment:
- Shipping:
Inventory:1,393
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Product details
Overview
MAX6376UR26+ from Maxim Integrated is an ultra-low-power, active-high push-pull voltage detector designed for precision supply monitoring in battery-powered systems. It features a factory-trimmed 2.63V threshold (±2.5% over temperature), 500nA supply current, and guaranteed operation down to 1V VCC. It asserts a logic-high output when VCC falls below the threshold and is used in portable equipment power sequencing and microcontroller reset supervision.
For engineers reviewing the MAX6376UR26+ datasheet, MAX6376UR26+ pinout, MAX6376UR26+ application, or MAX6376UR26+ equivalent, this device serves as a low-quiescent-current, single-supply voltage monitor with precise trip point, transient immunity, and SOT23-3 compatibility for space-constrained embedded designs.
Technical Context
The MAX6376UR26+ integrates a precision bandgap reference, comparator, and laser-trimmed resistive divider to deliver a fixed 2.63V detection threshold without external components. Its internal architecture ensures stable operation across -40°C to +85°C with ±2.5% accuracy and 40ppm/°C tempco.
It employs push-pull output logic (active-high), eliminating need for external pull-up resistors. The circuit ignores fast VCC transients up to 200µs at 30mV overdrive, enabling reliable reset generation in noisy power environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Threshold Voltage | 2.63V nominal, ±2.5% over -40°C to +85°C - ensures accurate brown-out detection for 2.7–3.3V Li-ion or regulated rails. |
| Supply Current | 500nA typical - enables multi-year battery life in always-on monitoring applications like IoT sensors. |
| Output Type | Active-high push-pull - drives logic inputs directly without pull-up resistor, reducing BOM count and layout area. |
| VCC Operating Range | 1.2V to 5.5V - supports operation during deep brown-out and compatibility with wide-input DC/DC converters. |
| Propagation Delay | 20µs typical - provides fast response to supply faults while avoiding false triggers from brief dips. |
| Hysteresis | 100mV - prevents output oscillation near threshold during slow-ramping or noisy supply conditions. |
| Tempco | 40ppm/°C - maintains tight threshold stability across industrial temperature range without calibration. |
Pinout & Package
MAX6376UR26+ is housed in a lead-free 3-pin SOT23-3 package (JEDEC MO-178AA), footprint-compatible with industry-standard SOT-23 layouts and optimized for high-density PCB assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for internal bandgap and comparator - must be connected to system ground plane for accurate threshold tracking. |
| 2 | OUT | Active-high push-pull output - sources up to 500µA and sinks up to 1.2mA; directly interfaces with µP reset inputs or enable pins. |
| 3 | VCC | Supply input - powers internal circuitry and defines monitored rail; operates from 1.2V to 5.5V with no external decoupling required. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low ICC | 500nA enables >10-year coin-cell operation in maintenance-free remote sensors. |
| No external components | Factory-trimmed threshold and integrated reference eliminate resistors, capacitors, and calibration steps. |
| Transient immunity | Rejects VCC glitches ≤200µs at 30mV overdrive - avoids spurious resets in motor-driven or RF-noisy systems. |
| Guaranteed 1V operation | Valid output state maintained even during deep brown-out, supporting graceful shutdown sequencing. |
| SOT23-3 footprint | 0.95mm × 1.9mm outline fits sub-2mm² board area - ideal for wearables and compact medical devices. |
Applications
| Portable Medical Sensors | Industrial Data Loggers |
|---|---|
Use Scenario: Continuous glucose monitor powered by CR2032 coin cell with 2.8V nominal output. IC Role / Device Role / Timing Role: Voltage detector supervising VCC to assert MCU reset before battery drops below safe operating voltage. Use Value: 500nA quiescent current extends battery life beyond 3 years; 2.63V threshold aligns precisely with end-of-life cutoff for LiMnO₂ chemistry. |
Use Scenario: Battery-backed environmental logger deployed in unattended field locations for 5+ years. IC Role / Device Role / Timing Role: Brown-out detector triggering controlled data save and sleep entry when primary supply dips. Use Value: Guaranteed 1V operation ensures deterministic reset behavior during final battery discharge phase; ±2.5% threshold accuracy prevents premature shutdown. |
| Wireless Sensor Nodes | Smart Home Controllers |
Use Scenario: Zigbee-enabled occupancy sensor using boost converter to regulate 3.3V rail from 1.5V alkaline cells. IC Role / Device Role / Timing Role: Input rail supervisor ensuring clean MCU reset when regulated output collapses due to low battery. Use Value: Push-pull output eliminates pull-up resistor, saving 0.2mm² PCB area and reducing leakage path in ultra-low-power sleep states. |
Use Scenario: Battery-buffered HVAC controller maintaining real-time clock and settings during AC power loss. IC Role / Device Role / Timing Role: Secondary supply monitor verifying backup supercapacitor voltage before initiating nonvolatile write sequence. Use Value: 100mV hysteresis prevents repeated reset toggling during capacitor discharge ramp; 20µs delay ensures only sustained faults trigger action. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage monitor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV803EB26DBZR | 2.63V threshold, 350nA ICC, open-drain output, SOT23-3 | Requires external pull-up; lower ICC but incompatible with direct µP reset inputs expecting active-high drive | Select when lowest possible current dominates and system logic accepts open-drain interface. |
| APX803S-26SA-7 | 2.63V threshold, 800nA ICC, active-high push-pull, SOT23-3 | Higher supply current; wider threshold tolerance (±3.5%) and slower propagation (45µs) | Select when cost sensitivity outweighs ultra-low-power requirement and timing margin allows longer delay. |
Compared with TLV803EB26DBZR and APX803S-26SA-7, the MAX6376UR26+ uniquely balances ultra-low 500nA current, active-high push-pull drive, and ±2.5% threshold accuracy in SOT23-3 - making it optimal for long-life, space-constrained, and reset-critical applications where external components must be minimized.
Availability
MAX6376UR26+ is available at Aetrix Electronics and suitable for portable medical sensors, wireless sensor nodes, industrial data loggers, and smart home controllers requiring stable component supply and long-term lifecycle support.
Supply support for MAX6376UR26+ 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, mixed-signal, and power management ICs for demanding industrial, automotive, and computing applications.
The MAX6375–MAX6380 family delivers ultra-low-power voltage supervision for battery-critical systems, emphasizing minimal ICC, factory-trimmed thresholds, and robust transient rejection in miniature packages.
FAQ
What is the exact factory-trimmed threshold voltage of MAX6376UR26+?
The MAX6376UR26+ has a nominal threshold voltage of 2.63V, with ±2.5% accuracy over the full -40°C to +85°C operating temperature range. This value is laser-trimmed at wafer test and confirmed in Table 1 of the datasheet under suffix "R26". The actual measured VTH at +25°C falls between 2.591V and 2.669V.
Does MAX6376UR26+ require external components to operate?
No, the MAX6376UR26+ requires no external components. Its precision bandgap reference, comparator, and trimmed resistor network are fully integrated. Unlike discrete solutions, it needs only VCC, GND, and OUT connections - eliminating external resistors, capacitors, and calibration effort in designs using the MAX6376UR26+.
What is the output configuration of MAX6376UR26+ and how does it interface with a microcontroller?
The MAX6376UR26+ features an active-high push-pull output. When VCC drops below 2.63V, OUT drives logic high (VOH ≥0.8×VCC at 500µA source); above threshold, OUT drives logic low (VOL ≤0.4V at 1.2mA sink). This allows direct connection to standard µP reset inputs without pull-up resistors - a key design advantage of the MAX6376UR26+.
Can MAX6376UR26+ operate reliably during fast power supply transients?
Yes, the MAX6376UR26+ is specifically designed to ignore fast negative-going VCC transients. According to the Typical Operating Characteristics graph (Figure MAX6375-04), it rejects glitches ≤200µs wide when the overdrive (VTH – VCC) is 30mV. This immunity prevents false resets in electrically noisy environments where the MAX6376UR26+ is deployed.
What package and pinout does MAX6376UR26+ use, and is it compatible with standard SOT23 footprints?
The MAX6376UR26+ uses a lead-free 3-pin SOT23-3 package (JEDEC MO-178AA) with pin 1 = GND, pin 2 = OUT, pin 3 = VCC. Its 0.95mm × 1.9mm body and 0.95mm pitch match standard SOT-23 land patterns, enabling drop-in replacement in existing layouts - a verified mechanical fit confirmed in Maxim's Package Information section for the MAX6376UR26+.
MAX6376UR26+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Voltage Detector
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.63V
- 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:
- SOT-23-3
MAX6376UR26+ FAQ
1.How can I place an order for MAX6376UR26+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6376UR26+ 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 MAX6376UR26+ reliable?
The price and inventory of MAX6376UR26+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6376UR26+ is usually 5 days.
3.What payment methods are accepted for MAX6376UR26+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6376UR26+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6376UR26+?
MAX6376UR26+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6376UR26+ 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 MAX6376UR26+?
For technical support, including MAX6376UR26+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6376UR26+ requirements.
6.How does Aetrix verify that MAX6376UR26+ is sourced from the original manufacturer or authorized distributors?
All MAX6376UR26+ 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 MAX6376UR26+ meets industry standards.
7.What is the process for return or replacement of MAX6376UR26+?
All MAX6376UR26+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6376UR26+, 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 MAX6376UR26+ part is unused and in its original packaging.
Return procedure for MAX6376UR26+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6376UR26+ Tags
-
MIC826SYMT-TR
Microchip Technology
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APX803S-31SA-7
Diodes Incorporated
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APX803L20-29SA-7
Diodes Incorporated
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V6340RSP3B+
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EM6325CXSP5B-2.9+
EM Microelectronic
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MCP120T-300I/TT
Microchip Technology
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MCP130T-315I/TT
Microchip Technology
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MCP120T-475I/TT
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MCP111T-300E/TT
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MCP120T-315I/TT
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MCP809T-315I/TT
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