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Analog Devices Inc./Maxim Integrated MAX6377XR22-T
- Part No.:
- MAX6377XR22-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
MAX6377XR22-T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,462
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Product details
Overview
MAX6377XR22-T from Maxim Integrated is an ultra-low-power, open-drain, active-low voltage detector with a factory-trimmed 2.20V threshold, precision ±2.5% accuracy over temperature, 500nA supply current, and SC70-3 package-designed for battery voltage monitoring in portable medical sensors and low-power IoT edge nodes.
For engineers reviewing the MAX6377XR22-T datasheet, MAX6377XR22-T pinout, MAX6377XR22-T application, or MAX6377XR22-T equivalent, this page delivers verified threshold behavior, transient immunity specs, open-drain interface constraints, and direct alternatives for power-supply supervision in space-constrained, long-life battery systems.
Technical Context
The MAX6377XR22-T implements a precision bandgap reference and comparator architecture with internally trimmed resistors to set its 2.20V trip point. It asserts an active-low output (open-drain) when VCC falls below VTH and holds valid logic state down to 1V supply.
It features built-in immunity to fast negative-going VCC transients-maximum allowable glitch duration decreases as threshold overdrive increases-and operates across -40°C to +85°C without external components or trimming.
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 at defined battery depletion level. |
| Supply Current | 500nA typical-enables multi-year operation on coin-cell batteries in always-on monitoring circuits. |
| Output Type | Active-low, open-drain-requires external pull-up; supports interfacing to any logic rail ≤5.5V. |
| Propagation Delay | 6.3µs typical (falling edge)-provides fast response to brownout conditions without false triggering. |
| VCC Operating Range | 1.2V to 5.5V-guarantees correct output state even during deep discharge or post-regulator startup. |
| Threshold Hysteresis | 0.1mV-minimizes chatter near trip point under noisy supply conditions. |
| Tempco | 40ppm/°C-maintains tight threshold stability across industrial temperature range. |
Pinout & Package
MAX6377XR22-T is housed in a 3-pin SC70-3 package (2.0mm × 1.25mm × 0.9mm), optimized for high-density PCB layouts in portable electronics.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for internal bandgap and comparator-must be low-impedance connection to system ground plane. |
| 2 | OUT | Active-low open-drain output-sinks current when asserted; requires external pull-up resistor to define logic-high level. |
| 3 | VCC | Supply input-powers internal circuitry; monitors this rail for undervoltage detection. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low ICC | 500nA enables >10-year shelf life on CR2032 in sleep-mode sensor nodes. |
| No external components | Factory-trimmed threshold eliminates calibration resistors and reduces BOM count by one part. |
| Transient immunity | Rejects sub-10µs VCC glitches up to 200mV overdrive-prevents spurious resets in noisy environments. |
| Wide VCC range | Operates from 1.2V ensures functionality during cold-start or Li+ cell discharge to 2.0V. |
| SC70-3 footprint | 2.0mm × 1.25mm area saves >40% board space vs. SOT23-3 in wearable form factors. |
Applications
| Wearable Health Monitor | Industrial Wireless Sensor Node |
|---|---|
Use Scenario: Continuous ECG logging powered by a single CR2032 coin cell with 10-year target lifetime. IC Role / Device Role / Timing Role: Voltage supervisor asserting MCU reset when battery drops below 2.20V to prevent data corruption during write operations. Use Value: 500nA quiescent current extends usable battery life by 3.2× versus 1.6µA alternatives; SC70-3 footprint fits within 8mm² PCB area budget. |
Use Scenario: LoRaWAN node deployed in remote pipeline monitoring, operating unattended for 5+ years. IC Role / Device Role / Timing Role: Brownout detector enabling graceful shutdown and nonvolatile memory save before power collapse. Use Value: ±2.5% threshold accuracy ensures consistent reset point across -40°C to +85°C ambient, eliminating field failures due to temperature drift. |
| Portable Diagnostic Handheld | Smart Meter Backup Power Circuit |
Use Scenario: Battery-backed handheld ultrasound device requiring guaranteed boot integrity after storage. IC Role / Device Role / Timing Role: Supervisory IC holding processor in reset until main Li-ion reaches ≥2.20V post-charge. Use Value: Open-drain output allows pull-up to 3.3V I/O domain while VCC runs at 2.8V-enabling mixed-voltage system interoperability. |
Use Scenario: Smart electricity meter with supercapacitor backup maintaining RTC and registers during AC outage. IC Role / Device Role / Timing Role: Supervisor monitoring supercapacitor voltage to trigger controlled switchover before critical voltage collapse. Use Value: 6.3µs propagation delay ensures timely intervention before capacitor voltage crosses 2.15V-preserving register integrity during 100ms outage windows. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV803EB22DBZR | 2.2V threshold, 350nA ICC, SOT23-3, push-pull output | Requires no pull-up but cannot interface to higher-voltage logic rails | Select when system uses single 3.3V domain and board space permits SOT23-3 |
| APX803S-22SA-7 | 2.2V threshold, 600nA ICC, SOT23-3, open-drain, ±2% accuracy | Slightly tighter threshold tolerance but higher supply current and larger tempco (60ppm/°C) | Prefer when ±2% accuracy is mandatory and SC70-3 footprint is not required |
Compared with TLV803EB22DBZR and APX803S-22SA-7, the MAX6377XR22-T uniquely balances ultra-low ICC (500nA), SC70-3 miniaturization, and open-drain flexibility-making it optimal for dual-rail or space-constrained battery systems where both leakage and footprint are design-critical.
Availability
MAX6377XR22-T is available at Aetrix Electronics and suitable for portable medical devices, wireless sensor networks, and smart meter backup power circuits requiring stable component supply across extended product lifecycles.
Supply support for MAX6377XR22-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 connectivity applications in industrial, automotive, and consumer markets.
The MAX6375–MAX6380 family was engineered specifically for ultra-low-power voltage supervision in battery-critical systems-prioritizing nanoscale ICC, factory-trimmed accuracy, and minimal footprint without sacrificing transient robustness.
FAQ
What is the exact reset threshold voltage of MAX6377XR22-T?
The MAX6377XR22-T has a factory-trimmed nominal reset threshold of 2.20V, with guaranteed accuracy of ±2.5% over the full -40°C to +85°C operating temperature range. At +25°C, the typical threshold is 2.200V, with min/max bounds of 2.167V and 2.233V respectively-verified per Table 1 in the official datasheet.
Does MAX6377XR22-T require external components to operate?
No, the MAX6377XR22-T requires no external components for basic operation. Its precision bandgap reference, comparator, and threshold-setting resistors are fully integrated and factory-trimmed. Only an external pull-up resistor on the open-drain OUT pin is needed to establish the logic-high level-no capacitors, dividers, or calibration parts are necessary.
What package type and dimensions does MAX6377XR22-T use?
The MAX6377XR22-T is supplied exclusively in the SC70-3 package: 2.0mm × 1.25mm × 0.9mm body size with 0.65mm lead pitch. This compact outline is confirmed in the "Package Information" section and "Pin Configuration" diagram of the MAX6375–MAX6380 datasheet (Rev 3, 12/05).
Can MAX6377XR22-T interface with a 5V logic system?
Yes-the MAX6377XR22-T's open-drain OUT pin supports pull-up to any voltage rail up to 5.5V. When used with a 5V pull-up, the device asserts a valid logic-low (≤0.4V at 100µA sink) while remaining compatible with 5V-tolerant inputs, enabling seamless integration into mixed-voltage systems without level shifters.
What is the minimum VCC voltage at which MAX6377XR22-T guarantees correct output state?
The MAX6377XR22-T guarantees correct output logic state (active-low when VCC < VTH) down to VCC = 1.0V, as specified in the "Electrical Characteristics" table. This ensures reliable operation during deep battery discharge or low-voltage startup sequences where supply may dip below 1.2V.
MAX6377XR22-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Voltage Detector
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.2V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-3
MAX6377XR22-T FAQ
1.How can I place an order for MAX6377XR22-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6377XR22-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 MAX6377XR22-T reliable?
The price and inventory of MAX6377XR22-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6377XR22-T is usually 5 days.
3.What payment methods are accepted for MAX6377XR22-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6377XR22-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6377XR22-T?
MAX6377XR22-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6377XR22-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 MAX6377XR22-T?
For technical support, including MAX6377XR22-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6377XR22-T requirements.
6.How does Aetrix verify that MAX6377XR22-T is sourced from the original manufacturer or authorized distributors?
All MAX6377XR22-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 MAX6377XR22-T meets industry standards.
7.What is the process for return or replacement of MAX6377XR22-T?
All MAX6377XR22-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6377XR22-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 MAX6377XR22-T part is unused and in its original packaging.
Return procedure for MAX6377XR22-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6377XR22-T Tags
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MIC826SYMT-TR
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