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Analog Devices Inc./Maxim Integrated MAX6375UR23+T
- Part No.:
- MAX6375UR23+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
MAX6375UR23+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:183
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Product details
Overview
MAX6375UR23+T from Maxim Integrated is an ultra-low-power, active-low voltage detector in SOT23-3 package, with factory-trimmed 2.32V threshold (±2.5% over temperature), 500nA supply current, and push-pull output. It monitors VCC in portable battery-powered systems and asserts OUT low when supply drops below threshold-used for precision brownout detection in microcontroller reset circuits.
For engineers reviewing the MAX6375UR23+T datasheet, MAX6375UR23+T pinout, MAX6375UR23+T application, or MAX6375UR23+T equivalent, key selection criteria include threshold accuracy at low VCC (down to 1V), transient immunity against fast supply glitches, and compatibility with 1.2–5.5V operating range in space-constrained designs.
Technical Context
The MAX6375UR23+T integrates a precision bandgap reference, comparator, and laser-trimmed resistive divider to deliver fixed 2.32V detection without external components. Its internal architecture ensures stable trip point across -40°C to +85°C with ±2.5% total accuracy and 40ppm/°C tempco.
It features push-pull output logic (active-low), guaranteed correct state down to VCC = 1V, and built-in immunity to negative-going transients ≤200µs at 20mV overdrive-enabling reliable operation in noisy power environments without external filtering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Threshold Voltage | 2.32V (factory-trimmed, ±2.5% over -40°C to +85°C) |
| Supply Current | 500nA typical - enables >10-year battery life in coin-cell applications |
| Operating Voltage Range | 1.2V to 5.5V - supports deep brownout detection and wide-input systems |
| Output Type | Active-low push-pull - drives MCU RESET directly without pull-up resistor |
| Propagation Delay | 6.3µs typical (falling edge) - fast response for critical system recovery |
| Threshold Hysteresis | 100mV - prevents chatter during slow VCC recovery near trip point |
| Tempco | 40ppm/°C - ensures minimal drift across industrial temperature range |
Pinout & Package
MAX6375UR23+T is housed in a lead-free 3-pin SOT23-3 package (JEDEC MO-178AA), footprint-compatible with SC70-3 but with higher power dissipation rating (320mW at +70°C).
| 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 up to 1.2mA or sources 500µA; directly interfaces to CMOS RESET inputs |
| 3 | VCC | Supply input - powers internal circuitry and defines monitored rail; operates down to 1.2V |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low ICC | 500nA enables multi-year operation on CR2032 (220mAh) with 10s wake-up intervals |
| No external components | Factory-trimmed threshold eliminates calibration resistors and reduces BOM count by one |
| Transient immunity | Rejects VCC glitches <200µs duration at 20mV overdrive - avoids false resets in switching regulator noise |
| 1V minimum VCC operation | Ensures valid output state even during deep brownout - critical for safe MCU shutdown sequencing |
| Lead-free packaging | +T suffix denotes RoHS-compliant, matte-tin lead finish - meets IPC-J-STD-020 moisture sensitivity level 1 |
Applications
| Portable Medical Sensors | Industrial IoT Edge Nodes |
|---|---|
Use Scenario: Coin-cell-powered wearable ECG sensor monitoring battery voltage to trigger low-battery alert before shutdown. IC Role / Device Role / Timing Role: Voltage detector providing precise 2.32V brownout signal to microcontroller's reset input. Use Value: 500nA quiescent current extends usable battery life beyond 3 years; ±2.5% threshold accuracy ensures consistent low-battery flag timing across temperature. |
Use Scenario: Remote LoRaWAN node powered by solar-charged Li-ion, requiring reliable power-on reset and brownout detection. IC Role / Device Role / Timing Role: System supervisor asserting active-low RESET to STM32L4 during VCC dip below 2.32V. Use Value: Push-pull output eliminates need for external pull-up, reducing PCB area and leakage risk; 6.3µs propagation delay enables rapid recovery after transient dropout. |
| Smart Meter Battery Backup | Automotive Body Control Module (BCM) |
Use Scenario: AMI smart meter using supercapacitor backup during mains failure - detects capacitor discharge to initiate data save. IC Role / Device Role / Timing Role: Precision voltage monitor triggering EEPROM write-enable signal when VCC falls to 2.32V. Use Value: 100mV hysteresis prevents repeated writes during slow capacitor decay; 40ppm/°C tempco maintains accuracy across -25°C to +70°C meter enclosure environment. |
Use Scenario: BCM sub-module powered from 12V-to-3.3V DC/DC converter, needing robust reset under load-dump or cold-crank conditions. IC Role / Device Role / Timing Role: Brownout detector asserting MCU reset during 12V rail sag below regulated 3.3V output. Use Value: Immunity to 100µs/50mV transients rejects alternator noise; guaranteed operation down to 1.2V supports reset assertion even during severe cold-crank events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage detector applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV803EB23DBZR | 2.33V threshold, 350nA ICC, SOT23-3, open-drain output | Requires external pull-up; lower ICC but no push-pull drive capability | Choose when system already uses pull-up or needs lowest possible current; not drop-in due to output topology |
| APX803S-23SA-7 | 2.32V threshold, 800nA ICC, SOT23-3, push-pull active-low | Slightly higher supply current; same pinout and logic behavior | Select for cost-sensitive industrial designs where 300nA extra ICC is acceptable and Maxim sourcing is constrained |
Compared with TLV803EB23DBZR and APX803S-23SA-7, the MAX6375UR23+T uniquely combines 500nA ICC, push-pull output, and ±2.5% threshold accuracy in a single SOT23-3 device-enabling direct MCU reset drive without layout changes while maintaining best-in-class low-power performance.
Availability
MAX6375UR23+T is available at Aetrix Electronics and suitable for portable medical sensors, industrial IoT edge nodes, and smart meter battery backup systems requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.
Supply support for MAX6375UR23+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) designs precision analog and mixed-signal ICs for power, sensing, and interface applications, with emphasis on high-reliability, low-power solutions.
The MAX6375–MAX6380 family was engineered specifically for ultra-low-power voltage monitoring in battery-critical systems-delivering factory-trimmed thresholds, nanoscale ICC, and transient-hardened operation in minimal 3-pin packages.
FAQ
What is the exact factory-trimmed threshold voltage of MAX6375UR23+T?
The MAX6375UR23+T has a nominal threshold voltage of 2.32V, with tolerance of ±2.5% over the full operating temperature range (-40°C to +85°C). This value is laser-trimmed at wafer test and confirmed per Table 1 in the datasheet; the "R23" suffix explicitly denotes the 2.32V variant within the MAX6375 series.
Does MAX6375UR23+T require external components to operate?
No, the MAX6375UR23+T requires no external components. Its precision bandgap reference, comparator, and trimmed resistor network are fully integrated. The device operates with only VCC, GND, and OUT connections - eliminating calibration resistors, capacitors, or pull-ups needed by discrete or adjustable solutions.
What is the minimum VCC voltage at which MAX6375UR23+T guarantees correct output logic state?
The MAX6375UR23+T guarantees correct active-low output logic state down to VCC = 1V. This is specified in the datasheet under "All parts are guaranteed to be in the correct output logic state for VCC down to 1V", enabling reliable reset assertion even during deep brownout conditions before system collapse.
How does MAX6375UR23+T handle fast supply transients?
The MAX6375UR23+T ignores fast negative-going VCC transients up to 200µs in duration when the overdrive (VTH – VCC) is 20mV, per the "Maximum Transient Duration vs. Threshold Overdrive" graph. This built-in immunity prevents false resets caused by switching regulator noise or load-step disturbances without requiring external RC filters.
Is MAX6375UR23+T pin-compatible with other devices in the MAX6375–MAX6380 family?
Yes, all MAX6375–MAX6380 variants-including MAX6375UR23+T-are pin-compatible in both SOT23-3 and SC70-3 packages. Pin 1 is GND, Pin 2 is OUT, and Pin 3 is VCC across the entire family, allowing design reuse and threshold flexibility without PCB revision.
MAX6375UR23+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Voltage Detector
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.32V
- 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:
- SOT-23-3
MAX6375UR23+T FAQ
1.How can I place an order for MAX6375UR23+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6375UR23+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 MAX6375UR23+T reliable?
The price and inventory of MAX6375UR23+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6375UR23+T is usually 5 days.
3.What payment methods are accepted for MAX6375UR23+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6375UR23+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6375UR23+T?
MAX6375UR23+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6375UR23+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 MAX6375UR23+T?
For technical support, including MAX6375UR23+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6375UR23+T requirements.
6.How does Aetrix verify that MAX6375UR23+T is sourced from the original manufacturer or authorized distributors?
All MAX6375UR23+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 MAX6375UR23+T meets industry standards.
7.What is the process for return or replacement of MAX6375UR23+T?
All MAX6375UR23+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6375UR23+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 MAX6375UR23+T part is unused and in its original packaging.
Return procedure for MAX6375UR23+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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