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Analog Devices Inc./Maxim Integrated MAX6375XR26+T
- Part No.:
- MAX6375XR26+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
MAX6375XR26+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:1,259
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Product details
Overview
MAX6375XR26+T from Maxim Integrated is an ultra-low-power, 3-pin voltage detector IC designed for precision supply monitoring in battery-powered systems. It features a factory-trimmed 2.63V threshold (±2.5% over temperature), active-low push-pull output, 500nA supply current at +25°C, and operates from 1.2V to 5.5V VCC. It is used in portable equipment to trigger reset or power-fail signals when supply voltage drops below threshold.
For engineers reviewing the MAX6375XR26+T datasheet, MAX6375XR26+T pinout, MAX6375XR26+T application, or MAX6375XR26+T equivalent, key selection criteria include threshold accuracy, ultra-low quiescent current, SC70-3 package footprint, transient immunity, and compatibility with 1.2V minimum VCC operation.
Technical Context
The MAX6375XR26+T implements a precision bandgap reference and comparator with internally trimmed resistors to set its 2.63V detection threshold. Its push-pull output asserts logic low when VCC falls below VTH and remains valid down to 1V VCC.
It ignores fast negative-going VCC transients up to duration limits defined by threshold overdrive (e.g., ~140µs at 100mV overdrive), and guarantees ±2.5% threshold accuracy across –40°C to +85°C without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.63V nominal (2.564V min / 2.696V max over –40°C to +85°C); enables precise brown-out detection for 2.7V–3.0V Li-ion or regulated rails. |
| Supply Current | 500nA typical at +25°C; extends battery life in always-on monitoring applications such as wearables and IoT sensors. |
| Output Type | Active-low push-pull; drives logic inputs directly without pull-up resistor, simplifying interface with µP reset inputs. |
| VCC Operating Range | 1.2V to 5.5V; supports operation during deep brown-out and compatibility with wide-input DC/DC converters. |
| Propagation Delay | 6.3µs typical (falling edge); ensures timely reset assertion before critical system voltage collapse. |
| Threshold Tempco | 40ppm/°C; minimizes drift over temperature, reducing need for margining in industrial-grade designs. |
| Hysteresis | 100mV typical; prevents output chatter during slow VCC recovery near threshold. |
Pinout & Package
MAX6375XR26+T is housed in a 3-pin SC70-3 package (2.0mm × 2.1mm × 0.95mm), optimized for space-constrained portable PCBs. The package is lead-free and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for internal bandgap and comparator; must be connected to system ground plane for stable threshold accuracy. |
| 2 | OUT | Active-low push-pull output; sinks current when asserted (VOL ≤0.4V @ 100µA), drives standard CMOS/TTL reset inputs directly. |
| 3 | VCC | Supply input; powers internal circuitry and defines monitored rail; functional down to 1.2V, enabling ultra-low-voltage supervision. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low 500nA supply current | Enables multi-year battery life in coin-cell–powered devices like medical patches and remote sensors. |
| ±2.5% threshold accuracy over –40°C to +85°C | Eliminates need for calibration or external trimming in automotive cabin modules and industrial controllers. |
| No external components required | Reduces BOM count and PCB area-ideal for high-volume wearables and compact IoT endpoints. |
| 1.2V minimum VCC operation | Supports reliable reset generation even during deep discharge of single-cell Li-ion or alkaline batteries. |
| Transient immunity up to 140µs (at 100mV overdrive) | Rejects switching noise from DC/DC converters without requiring additional RC filtering on VCC. |
Applications
| Battery-Powered Wearables | Industrial Sensor Nodes |
|---|---|
Use Scenario: Supervising a 2.8V regulated rail powering an ARM Cortex-M0+ MCU and BLE radio in a fitness tracker. IC Role / Device Role: Voltage detector asserting active-low reset to halt processor execution before undervoltage lockout. Use Value: 500nA quiescent current preserves battery capacity; 2.63V threshold aligns precisely with Li-ion discharge knee, preventing data corruption. |
Use Scenario: Monitoring 3.3V supply in a wireless vibration sensor deployed in factory machinery. IC Role / Device Role: Brown-out detector triggering watchdog timeout and safe shutdown before ADC sampling errors occur. Use Value: ±2.5% threshold accuracy over temperature ensures consistent trip point across -40°C cold starts and +85°C ambient operation. |
| Medical Diagnostic Patch | Smart Meter Backup Power Circuit |
Use Scenario: Validating primary coin-cell voltage before initiating ECG signal acquisition in a disposable patch. IC Role / Device Role: Low-power supervisor enabling wake-up only when sufficient energy remains for full measurement cycle. Use Value: 1.2V minimum VCC operation allows detection down to end-of-life battery voltage, maximizing usable runtime. |
Use Scenario: Supervising supercapacitor backup voltage in a utility meter during main AC failure. IC Role / Device Role: Reset generator that holds microcontroller in reset until backup rail reaches 2.63V post-charge. Use Value: Push-pull output eliminates external pull-up, reducing leakage paths critical for >10-year backup retention. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage detector applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV803EC26DBVR | 2.63V threshold, 350nA IQ, SOT-23-3, open-drain output | Requires external pull-up; less suitable for direct µP reset input without level-shifting | Select when lowest possible IQ is critical and board layout accommodates pull-up resistor. |
| APX803S-26SA-7 | 2.63V threshold, 800nA IQ, SOT-23-3, push-pull output, wider temp range (–40°C to +125°C) | Higher supply current; better suited for under-hood automotive use but reduces battery life in portable gear | Select when extended temperature rating is mandatory and 300nA higher IQ is acceptable. |
Compared with TLV803EC26DBVR and APX803S-26SA-7, the MAX6375XR26+T uniquely balances ultra-low 500nA current, push-pull drive, SC70-3 footprint, and guaranteed 1.2V operation-making it optimal for space- and energy-constrained portable designs where direct reset assertion matters.
Availability
MAX6375XR26+T is available at Aetrix Electronics and suitable for portable/wearable electronics, industrial sensor nodes, medical diagnostic patches, and smart meter backup circuits requiring stable component supply and long-term lifecycle support.
Supply support for MAX6375XR26+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 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 battery-critical systems, delivering precision thresholds, minimal current draw, and robust transient rejection in miniature packages.
FAQ
What is the exact factory-trimmed threshold voltage of MAX6375XR26+T?
The MAX6375XR26+T has a nominal reset threshold of 2.63V, with a guaranteed range of 2.564V (min) to 2.696V (max) across the full operating temperature range of –40°C to +85°C. This value is laser-trimmed at wafer test and specified in Table 1 of the datasheet under suffix "R26".
Does MAX6375XR26+T require external components to operate?
No, the MAX6375XR26+T requires no external components. Its precision bandgap reference, comparator, and threshold-setting resistors are fully integrated and factory-trimmed. Only VCC, GND, and the OUT signal connection are needed-enabling drop-in deployment in space-sensitive layouts.
What is the minimum VCC voltage at which MAX6375XR26+T remains functional?
The MAX6375XR26+T is guaranteed to maintain correct output logic state down to 1.2V VCC. Below this, behavior is not specified. This capability allows reliable reset assertion even during deep battery discharge, unlike many competitors that require ≥1.8V minimum.
How does the MAX6375XR26+T handle power-supply transients?
The MAX6375XR26+T rejects short negative-going VCC transients via internal filtering. For example, at 100mV overdrive (VTH – VCC = 100mV), it tolerates transients up to ~140µs without false triggering-per the "Maximum Transient Duration vs. Threshold Overdrive" curve in the datasheet.
Is MAX6375XR26+T pin-compatible with other devices in the MAX6375–MAX6380 family?
Yes, all MAX6375–MAX6380 variants-including MAX6375XR26+T-are pin-compatible within the same package type (SC70-3 or SOT23-3). Pin 1 is GND, Pin 2 is OUT, and Pin 3 is VCC across the entire family, enabling easy threshold or output-type substitution without PCB changes.
MAX6375XR26+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Cut Tape (CT)
- 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 Low
- Reset Timeout:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-3
MAX6375XR26+T FAQ
1.How can I place an order for MAX6375XR26+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6375XR26+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 MAX6375XR26+T reliable?
The price and inventory of MAX6375XR26+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6375XR26+T is usually 5 days.
3.What payment methods are accepted for MAX6375XR26+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6375XR26+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6375XR26+T?
MAX6375XR26+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6375XR26+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 MAX6375XR26+T?
For technical support, including MAX6375XR26+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6375XR26+T requirements.
6.How does Aetrix verify that MAX6375XR26+T is sourced from the original manufacturer or authorized distributors?
All MAX6375XR26+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 MAX6375XR26+T meets industry standards.
7.What is the process for return or replacement of MAX6375XR26+T?
All MAX6375XR26+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6375XR26+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 MAX6375XR26+T part is unused and in its original packaging.
Return procedure for MAX6375XR26+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6375XR26+T Tags
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