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Analog Devices Inc./Maxim Integrated MAX6375XR22
- Part No.:
- MAX6375XR22
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
MAX6375XR22.pdf
- Description:
- IC SUPERVISOR UL LO PWR VOLT DET
- Quantity:
- Payment:
- Shipping:
Inventory:1,250
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Product details
Overview
MAX6375XR22 from Maxim Integrated is an ultra-low-power, 2.20V threshold voltage detector in SC70-3 package, featuring active-low push-pull output, ±2.5% threshold accuracy over temperature, 500nA supply current, and guaranteed operation down to 1V VCC - used for precision battery monitoring and power-supply supervision in portable equipment.
For engineers reviewing the MAX6375XR22 datasheet, MAX6375XR22 pinout, MAX6375XR22 application, or MAX6375XR22 equivalent, this page delivers verified technical context, real-world design meaning of specifications, validated pin functions, application-specific implementation guidance, and two confirmed alternative parts with documented functional and application differences.
Technical Context
The MAX6375XR22 implements a precision bandgap reference and comparator with factory-trimmed resistors to deliver a fixed 2.20V detection threshold. It asserts an active-low output when VCC falls below VTH and holds valid logic state down to 1V supply.
It features built-in immunity to fast VCC transients (≤20µs at 100mV overdrive), operates without external components, and uses no trimming or calibration - enabling drop-in integration into low-voltage, battery-critical systems requiring high reliability and minimal quiescent power.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Threshold Voltage | 2.20V nominal, ±2.5% over -40°C to +85°C - ensures reliable reset assertion across industrial temperature range without recalibration. |
| Supply Current | 500nA typical at +25°C - enables multi-year operation on coin-cell batteries in always-on monitoring circuits. |
| Output Type | Active-low push-pull - drives logic inputs directly without pull-up resistor, simplifying PCB layout and reducing BOM count. |
| VCC Operating Range | 1.2V to 5.5V - supports supervision of Li+ cells (2.5–4.2V), 3.3V/5V rails, and brown-out detection down to 1.2V. |
| Propagation Delay | 6.3µs typical (falling edge) - provides fast response to supply collapse while rejecting sub-µs noise spikes. |
| Threshold Hysteresis | 100mV - prevents output chatter during slow VCC recovery near trip point, eliminating need for external hysteresis circuitry. |
| Tempco | 40ppm/°C - contributes to tight ±2.5% total error budget over full temperature range. |
Pinout & Package
MAX6375XR22 is housed in a 3-pin SC70-3 package (1.25mm × 2.0mm × 0.95mm), optimized for space-constrained portable designs. Pin 1 = GND, Pin 2 = OUT, Pin 3 = VCC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Reference ground for internal bandgap and comparator - must be connected to system ground plane with low-impedance path. |
| 2 | OUT | Active-low push-pull output - sinks current when asserted (VCC < VTH); drives MCU reset or enable inputs directly. |
| 3 | VCC | Supply input - powers internal circuitry and defines detection domain; operates from 1.2V to 5.5V with no external decoupling required. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low 500nA supply current | Extends battery life in always-on monitoring applications - e.g., >10 years on CR2032 at 2.5V with 1-second wake-up interval. |
| Factory-trimmed 2.20V threshold | Eliminates external resistor network and manual calibration - reduces assembly cost and improves production yield. |
| 1V minimum operating voltage | Ensures valid reset assertion even during deep battery discharge - critical for protecting microcontrollers from undefined states. |
| Transient immunity (≤20µs) | Rejects switching noise from DC/DC converters or load transients - avoids false resets in noisy power environments. |
| No external components required | Reduces solution size to <1.5mm² footprint and eliminates BOM line items - accelerates time-to-market for compact wearables. |
Applications
| Portable Medical Sensors | Industrial IoT Edge Nodes |
|---|---|
Use Scenario: Continuous glucose monitor powered by single CR2032 cell with 2.0–3.0V operating range. IC Role / Device Role / Timing Role: Voltage detector supervising battery health and triggering graceful shutdown before undervoltage lockout. Use Value: 500nA quiescent current extends usable battery life by >30% versus µA-class supervisors; 2.20V threshold aligns precisely with LiMnO₂ end-of-life voltage. |
Use Scenario: Wireless vibration sensor node deployed in factory machinery with intermittent 3.3V rail from energy harvester. IC Role / Device Role / Timing Role: Power-good monitor ensuring MCU only boots when regulated supply exceeds safe operating margin. Use Value: 6.3µs propagation delay enables rapid fault response; ±2.5% threshold accuracy guarantees consistent startup behavior across temperature swings. |
| Smart Wearable Chargers | Low-Power BLE Modules |
Use Scenario: Qi-compatible wearable charger IC with integrated battery charging and status reporting via I²C. IC Role / Device Role / Timing Role: Brown-out detector asserting system reset when input drops below 2.20V during wireless power coupling instability. Use Value: Active-low push-pull output interfaces directly to charger IC's RESET pin - no level-shifter or pull-up needed, saving 0.3mm² PCB area. |
Use Scenario: Bluetooth Low Energy beacon using nRF52832 MCU, powered by 3.0V LDO with backup coin cell. IC Role / Device Role / Timing Role: Primary supervisor ensuring firmware integrity by holding MCU in reset until VCC stabilizes above 2.20V after cold start. Use Value: 100mV hysteresis prevents oscillation during LDO soft-start; SC70-3 package fits within 2.0mm × 2.0mm module envelope. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage detector applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS3123QDBVRQ1 | 2.21V threshold, 1.8µA supply current, SOT23-3 package, AEC-Q100 qualified | Automotive-grade qualification required; higher IQ limits use in multi-year battery applications | Select when automotive reliability certification is mandatory and higher supply current is acceptable. |
| APX803S-22SA-7 | 2.2V threshold, 0.6µA supply current, SOT23-3, no SC70 option | Larger footprint than SC70; slightly higher IQ than MAX6375XR22 but still suitable for long-life portable use | Choose when SOT23-3 is preferred for assembly compatibility and 0.6µA IQ meets battery lifetime targets. |
Compared with TPS3123QDBVRQ1 and APX803S-22SA-7, the MAX6375XR22 offers the lowest supply current (500nA) and smallest package (SC70-3), making it optimal for ultra-compact, multi-year battery-powered devices where space and quiescent power are primary constraints.
Availability
MAX6375XR22 is available at Aetrix Electronics and suitable for portable medical sensors, industrial IoT edge nodes, smart wearable chargers, and low-power BLE modules requiring stable component supply, long-lifecycle support, and consistent parametric performance.
Supply support for MAX6375XR22 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 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 battery-critical systems - delivering precision thresholds, nanoscale supply current, and zero-component integration in miniature packages.
FAQ
What is the exact threshold voltage of MAX6375XR22 and how tightly is it specified?
The MAX6375XR22 has a nominal threshold voltage of 2.20V, with a guaranteed tolerance of ±2.5% over the full operating temperature range (-40°C to +85°C). At +25°C, the typical value is 2.200V, with min/max bounds of 2.167V and 2.233V. This precision is achieved via factory laser trimming of internal resistors, eliminating need for external calibration.
Does MAX6375XR22 require any external components to operate?
No, the MAX6375XR22 requires zero external components. Its precision bandgap reference, comparator, and trimmed resistor network are fully integrated. Unlike discrete solutions, it needs no external voltage divider, capacitor, or pull-up resistor - enabling true "connect-and-go" supervision in space-constrained layouts.
What output configuration does MAX6375XR22 use and how does it interface with common MCUs?
The MAX6375XR22 features an active-low push-pull output. When VCC drops below 2.20V, OUT drives low (typically ≤0.4V at 100µA sink); otherwise, it drives high (≥0.8×VCC). This allows direct connection to standard CMOS reset inputs (e.g., nRESET on ARM Cortex-M or ESP32) without external pull-ups or level shifters.
Can MAX6375XR22 operate reliably at very low supply voltages?
Yes, the MAX6375XR22 is fully specified to operate down to 1.2V VCC and guarantees correct output logic state (active-low when VCC < VTH) down to 1.0V. This enables robust brown-out detection even during deep battery discharge in coin-cell-powered devices - a key differentiator versus many µA-class supervisors.
How does MAX6375XR22 handle power supply transients and noise?
The MAX6375XR22 incorporates inherent immunity to fast VCC transients: it ignores negative-going glitches ≤20µs wide when the overdrive (VTH – VCC) is 100mV. This is achieved through internal filtering and comparator hysteresis - preventing false resets caused by DC/DC switching noise or load-step disturbances without requiring external RC networks.
MAX6375XR22 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Voltage Detector
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.2V
- 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
MAX6375XR22 FAQ
1.How can I place an order for MAX6375XR22 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6375XR22 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 MAX6375XR22 reliable?
The price and inventory of MAX6375XR22 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6375XR22 is usually 5 days.
3.What payment methods are accepted for MAX6375XR22?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6375XR22 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6375XR22?
MAX6375XR22 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6375XR22 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 MAX6375XR22?
For technical support, including MAX6375XR22 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6375XR22 requirements.
6.How does Aetrix verify that MAX6375XR22 is sourced from the original manufacturer or authorized distributors?
All MAX6375XR22 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 MAX6375XR22 meets industry standards.
7.What is the process for return or replacement of MAX6375XR22?
All MAX6375XR22 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6375XR22, 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 MAX6375XR22 part is unused and in its original packaging.
Return procedure for MAX6375XR22:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6375XR22 Tags
-
MIC826SYMT-TR
Microchip Technology
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APX803S-31SA-7
Diodes Incorporated
-
APX803L20-29SA-7
Diodes Incorporated
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TPS3828-33DBVR
Texas Instruments
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V6340RSP3B+
EM Microelectronic
-
EM6325CXSP5B-2.9+
EM Microelectronic
-
MCP120T-300I/TT
Microchip Technology
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MCP130T-315I/TT
Microchip Technology
-
MCP120T-475I/TT
Microchip Technology
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MCP111T-300E/TT
Microchip Technology
-
MCP120T-315I/TT
Microchip Technology
-
MCP809T-315I/TT
Microchip Technology
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