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Analog Devices Inc./Maxim Integrated MAX6375XR25
- Part No.:
- MAX6375XR25
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
MAX6375XR25.pdf
- Description:
- IC SUPERVISOR UL LO PWR VOLT DET
- Quantity:
- Payment:
- Shipping:
Inventory:654
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Product details
Overview
MAX6375XR25 from Maxim Integrated is an ultra-low-power, factory-trimmed voltage detector IC designed for precision supply monitoring in battery-powered systems. It features a 2.50V ±2.5% threshold, active-low push-pull output, 500nA supply current at +25°C, operates from 1.2V to 5.5V VCC, and asserts OUT low when VCC falls below threshold - used in Li+-battery backup supervision and microcontroller reset generation.
For engineers reviewing the MAX6375XR25 datasheet, MAX6375XR25 pinout, MAX6375XR25 application, or MAX6375XR25 equivalent, key selection criteria include threshold accuracy over temperature, transient immunity, SC70-3 package footprint compatibility, and guaranteed logic state down to 1V VCC.
Technical Context
The MAX6375XR25 implements a precision bandgap reference and comparator with internally trimmed resistors to set its 2.50V trip point. Its push-pull output drives low without external pull-up, and it guarantees correct logic state for VCC ≥1V - enabling reliable reset assertion during brownout conditions.
Designed to reject fast VCC transients, the device exhibits ≤20µs propagation delay (falling edge) and incorporates hysteresis of 9.5mV (typical), ensuring noise immunity in noisy power rails. Threshold tempco is 40ppm/°C over –40°C to +85°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.50V ±2.5% at +25°C; ensures accurate brownout detection for 2.5V nominal supplies |
| Supply Current | 500nA typical at +25°C; enables multi-year operation on coin-cell batteries |
| Operating VCC Range | 1.2V to 5.5V; supports valid output assertion even during deep brownout |
| Output Type | Active-low push-pull; eliminates need for external pull-up resistor |
| Propagation Delay | 20µs max (falling), enabling fast response to supply faults |
| Threshold Hysteresis | 9.5mV typical; prevents chatter during slow-rising/falling VCC transitions |
| Tempco | 40ppm/°C; maintains threshold stability across industrial temperature range |
Pinout & Package
MAX6375XR25 is housed in a 3-pin SC70-3 package (2.0mm × 1.25mm × 0.95mm), optimized for space-constrained portable designs. The package is RoHS-compliant and available in lead-free variant (replace "-T" with "+T" in order code).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for internal bandgap and comparator; must be low-impedance connection |
| 2 | OUT | Active-low push-pull output; sinks current when asserted (low), drives high when released |
| 3 | VCC | Supply input; powers internal circuitry and defines monitored rail; accepts 1.2V–5.5V |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low ICC | 500nA typical enables >10-year battery life in always-on monitoring applications |
| Precision threshold | ±2.5% tolerance over –40°C to +85°C eliminates calibration overhead |
| No external components | Internally trimmed resistors and bandgap reference remove BOM cost and layout area |
| VCC transient immunity | Rejects glitches <20µs wide (at 100mV overdrive), preventing false resets |
| Guaranteed 1V operation | Valid output logic state maintained down to 1V VCC - critical for last-gasp system shutdown |
Applications
| Portable Medical Sensors | Wearables with Li+ Battery |
|---|---|
Use Scenario: Continuous glucose monitor powered by CR2032 coin cell with regulated 2.5V rail. IC Role / Device Role / Timing Role: Voltage detector supervising regulated 2.5V supply; asserts reset to MCU when battery drops below 2.5V threshold. Use Value: Prevents data corruption during low-battery operation while extending usable battery life via 500nA quiescent current. |
Use Scenario: Smartwatch using single-cell Li+ battery with DC/DC converter outputting 2.5V to sensor subsystem. IC Role / Device Role / Timing Role: Brownout detector triggering graceful firmware shutdown before VCC collapse. Use Value: Ensures deterministic reset behavior with 20µs response time and no external components required. |
| Industrial IoT Edge Node | Low-Power Microcontroller System |
Use Scenario: Battery-backed wireless sensor node operating in remote locations with temperature extremes. IC Role / Device Role / Timing Role: Supply monitor asserting active-low reset to ARM Cortex-M0+ during cold-start or brownout. Use Value: Maintains ±2.5% threshold accuracy from –40°C to +85°C and guarantees output state down to 1V VCC. |
Use Scenario: Sub-1µA sleep-mode MCU system requiring reliable wake-from-reset after power recovery. IC Role / Device Role / Timing Role: Reset supervisor generating clean, glitch-free reset pulse upon VCC rise above 2.50V. Use Value: Push-pull output eliminates pull-up resistor, reducing leakage paths and PCB area in ultra-low-power designs. |
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 only, ±3% accuracy over –40°C to +125°C | Higher temp range but no SC70 option; lower ICC but looser threshold tolerance | Select when extended temperature operation is required and SC70 footprint is not mandatory |
| APX803S-25SA-7 | 2.5V threshold, 600nA ICC, SOT23-3 only, ±2% accuracy, 1.6V min VCC | Higher minimum VCC (1.6V vs. 1.2V); tighter accuracy but higher ICC and no SC70 package | Prefer when ±2% threshold accuracy is critical and board space allows SOT23-3 |
Compared with TLV803EB25DBZR and APX803S-25SA-7, the MAX6375XR25 uniquely combines SC70-3 packaging, 1.2V operational minimum, and ±2.5% accuracy at 500nA - making it optimal for ultra-compact, long-life 2.5V supply monitoring.
Availability
MAX6375XR25 is available at Aetrix Electronics and suitable for portable medical sensors, wearables with Li+ battery, industrial IoT edge nodes, and low-power microcontroller systems requiring stable component supply across production lifecycles.
Supply support for MAX6375XR25 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 U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, communications, and consumer applications.
The MAX6375–MAX6380 family was designed specifically for ultra-low-power voltage monitoring in space- and energy-constrained battery-operated equipment, delivering precision reset functionality without external components.
FAQ
What is the exact reset threshold voltage of the MAX6375XR25?
The MAX6375XR25 has a factory-trimmed nominal reset threshold of 2.50V, with ±2.5% accuracy over the full industrial temperature range (–40°C to +85°C). At +25°C, the typical threshold is 2.50V, and the guaranteed range is 2.437V to 2.562V per the datasheet's Table 1.
Does the MAX6375XR25 require an external pull-up resistor on its output?
No, the MAX6375XR25 features an active-low push-pull output, meaning it actively drives both high and low states. Unlike open-drain detectors, it does not require an external pull-up resistor - simplifying design and eliminating associated leakage paths and BOM cost.
Can the MAX6375XR25 operate reliably below 2.5V VCC?
Yes - the MAX6375XR25 is fully specified to operate and maintain correct output logic state down to 1.2V VCC, and it guarantees valid output behavior even at 1.0V. This enables robust brownout detection during deep discharge of lithium-based batteries.
What package options are available for the MAX6375XR25?
The MAX6375XR25 is offered exclusively in the 3-pin SC70-3 package (2.0mm × 1.25mm). It is not available in SOT23-3 - that variant is designated MAX6375UR25-T. Both packages are RoHS-compliant, with lead-free versions indicated by replacing "-T" with "+T" in the order code.
How does the MAX6375XR25 handle power-supply transients?
The MAX6375XR25 incorporates built-in transient immunity: it ignores negative-going VCC glitches shorter than ~20µs (depending on overdrive magnitude), as shown in the "Maximum Transient Duration vs. Threshold Overdrive" graph. This prevents false resets caused by switching noise or load transients.
MAX6375XR25 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Bulk
- 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 Low
- Reset Timeout:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-3
MAX6375XR25 FAQ
1.How can I place an order for MAX6375XR25 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6375XR25 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 MAX6375XR25 reliable?
The price and inventory of MAX6375XR25 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6375XR25 is usually 5 days.
3.What payment methods are accepted for MAX6375XR25?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6375XR25 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6375XR25?
MAX6375XR25 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6375XR25 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 MAX6375XR25?
For technical support, including MAX6375XR25 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6375XR25 requirements.
6.How does Aetrix verify that MAX6375XR25 is sourced from the original manufacturer or authorized distributors?
All MAX6375XR25 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 MAX6375XR25 meets industry standards.
7.What is the process for return or replacement of MAX6375XR25?
All MAX6375XR25 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6375XR25, 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 MAX6375XR25 part is unused and in its original packaging.
Return procedure for MAX6375XR25:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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MIC826SYMT-TR
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