My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX6377XR25+T
- Part No.:
- MAX6377XR25+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
MAX6377XR25+T.pdf
- Description:
- IC VOLT DETECT LP 2.50V SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:4,853
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX6377XR25+T from Maxim Integrated is an ultra-low-power, open-drain, active-low voltage detector optimized for battery and power-supply monitoring in portable systems. It features a factory-trimmed 2.50V threshold (±2.5% over temperature), 500nA supply current at +25°C, and guaranteed operation down to 1V VCC. Its SC70-3 package and transient-immune design make it suitable for precision reset generation in Li+-powered wearables and low-voltage microcontroller supervision.
For engineers reviewing the MAX6377XR25+T datasheet, MAX6377XR25+T pinout, MAX6377XR25+T application, or MAX6377XR25+T equivalent, key selection criteria include its open-drain output configuration, 2.50V trip point with hysteresis, SC70-3 footprint compatibility, and immunity to sub-20µs VCC transients - critical for reliable brownout detection in energy-constrained embedded designs.
Technical Context
The MAX6377XR25+T implements a precision bandgap reference and comparator with internally trimmed resistors to set its 2.50V threshold. It asserts an active-low signal on OUT when VCC falls below VTH, with no external components required. The device ignores fast negative-going transients up to 20µs (at 100mV overdrive), ensuring noise immunity without external filtering.
Its open-drain output supports flexible logic interfacing: a pull-up resistor to any supply ≤5.5V enables level-shifting across voltage domains. The circuit remains functional down to 1V VCC, maintaining correct output state during deep brownout conditions - essential for orderly system shutdown in battery-powered devices.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold Voltage | 2.50V ±2.5% over -40°C to +85°C - ensures accurate brownout detection across industrial temperature range |
| Supply Current | 500nA at +25°C - enables multi-year battery life in coin-cell–powered IoT sensors |
| Output Type | Active-low open-drain - allows wired-OR reset buses and interface to 1.8V/3.3V/5V logic domains via external pull-up |
| VCC Operating Range | 1.2V to 5.5V - supports supervision of Li+ cells (2.7–4.2V), 3.3V rails, and post-regulator outputs |
| Propagation Delay | 6.3µs typical (falling edge) - provides fast response to voltage collapse without false triggering |
| Hysteresis | 100mV - prevents chatter near threshold during slow VCC recovery |
| Package | SC70-3 (2.0mm × 1.25mm × 0.95mm) - saves PCB area in space-constrained wearables and medical patches |
Pinout & Package
MAX6377XR25+T is housed in a 3-pin SC70 package (2.0mm × 1.25mm footprint, 0.95mm height). Pin 1 = GND, Pin 2 = OUT, Pin 3 = VCC. The SC70-3 outline matches JEDEC MO-203AA and is compatible with standard SMT reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for internal bandgap and comparator - must be connected directly to low-impedance system ground plane |
| 2 | OUT | Active-low open-drain output - requires external pull-up resistor (typically 10kΩ–100kΩ) to define logic-high voltage level |
| 3 | VCC | Supply input - powers internal circuitry and defines monitored rail; operates from 1.2V to 5.5V |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 500nA enables >10-year battery life in always-on monitoring applications |
| Factory-trimmed threshold accuracy | ±2.5% over full temperature range eliminates need for calibration or trimming resistors |
| Transient immunity | Rejects VCC glitches <20µs duration - avoids spurious resets during switching noise or load transients |
| No external components | Self-contained detection circuit - reduces BOM count and PCB area vs. discrete resistor-divider + comparator solutions |
| Open-drain output flexibility | Supports multi-source reset buses and mixed-voltage system interfaces without level translators |
Applications
| Wearable Health Monitor | Industrial Sensor Node |
|---|---|
Use Scenario: Continuous ECG patch powered by CR2032 coin cell, requiring reliable reset during battery depletion. IC Role / Device Role / Timing Role: Voltage detector supervising 3.0V regulated rail; asserts /RESET when VCC drops below 2.50V. Use Value: Prevents firmware corruption by halting MCU before supply collapses below operational minimum, extending usable battery capacity by 8–12%. |
Use Scenario: Wireless vibration sensor deployed in factory machinery, operating unattended for 5+ years. IC Role / Device Role / Timing Role: Brownout supervisor for ultra-low-power ARM Cortex-M0+ MCU and LoRa transceiver. Use Value: Guarantees clean power-down sequence and nonvolatile memory write completion before VCC falls below 1.8V logic threshold. |
| USB-C Power Bank | Medical Infusion Pump |
Use Scenario: Dual-cell Li-ion power bank with 5V/3A USB PD output and integrated fuel gauge. IC Role / Device Role / Timing Role: Monitors 3.3V system management rail; triggers hardware reset if DC/DC converter fails. Use Value: Eliminates software-based watchdog dependency, ensuring fail-safe recovery even during firmware lockup. |
Use Scenario: Battery-backed infusion pump with safety-critical motor control and display subsystems. IC Role / Device Role / Timing Role: Primary reset generator for main controller; asserted when main 5V rail sags below 2.50V during battery switchover. Use Value: Meets IEC 62304 Class C requirement for deterministic power-fail response within 10ms. |
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 supply current, SOT23-3 only, ±1.5% initial accuracy | Lacks SC70 option; lower tempco but no guaranteed 1V operation | Preferred for cost-sensitive SOT23 designs where 1V brownout holdover is not required |
| APX803S-25SA-7 | 2.5V threshold, 600nA supply current, SOT23-3 only, ±2.0% over temp | Higher ICC than MAX6377XR25+T; no SC70 variant; shorter propagation delay (4.5µs) | Selected when faster reset assertion is prioritized over ultra-low ICC or package size |
Compared with TLV803EB25DBZR and APX803S-25SA-7, the MAX6377XR25+T uniquely combines SC70-3 packaging, guaranteed 1V operation, and 500nA ICC - making it optimal for miniaturized, long-life battery systems where board space and energy budget are constrained.
Availability
MAX6377XR25+T is available at Aetrix Electronics and suitable for wearable health monitors, industrial sensor nodes, USB-C power banks, and medical infusion pumps requiring stable component supply across extended production lifecycles.
Supply support for MAX6377XR25+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 high-performance analog and mixed-signal ICs for power, sensing, and connectivity applications.
The MAX6375–MAX6380 family delivers ultra-low-power voltage supervision for battery-powered and energy-harvesting systems, emphasizing minimal ICC, small footprint, and robust transient immunity in portable electronics.
FAQ
What is the exact reset threshold voltage of the MAX6377XR25+T?
The MAX6377XR25+T has a factory-trimmed nominal reset threshold of 2.50V, with guaranteed accuracy of ±2.5% over the full operating temperature range (-40°C to +85°C). At +25°C, the typical threshold is 2.50V, and the minimum/maximum values are 2.437V and 2.562V respectively, as specified in Table 1 of the datasheet.
Does the MAX6377XR25+T require external components to function?
No, the MAX6377XR25+T requires no external components to perform basic voltage detection. Its precision bandgap reference, comparator, and threshold-setting resistors are fully integrated. Only an external pull-up resistor on the open-drain OUT pin is needed to establish the logic-high level - no capacitors, dividers, or trimming elements are necessary for standard operation.
What package type does the MAX6377XR25+T use, and is it RoHS-compliant?
The MAX6377XR25+T uses the SC70-3 package (2.0mm × 1.25mm × 0.95mm) and is supplied in lead-free, RoHS-compliant form, indicated by the "+T" suffix. This package meets JEDEC MO-203AA specifications and is compatible with standard reflow soldering processes used in high-volume SMT assembly.
How does the MAX6377XR25+T handle fast voltage transients on the VCC line?
The MAX6377XR25+T is designed to ignore fast negative-going transients on VCC. According to the Typical Operating Characteristics graph (Figure MAX6375-04), it rejects pulses shorter than ~20µs when the overdrive (VTH – VCC) is 100mV. This built-in immunity eliminates the need for external RC filters in noisy environments like motor-driven or switching-power applications.
Can the MAX6377XR25+T operate reliably at VCC voltages below 2.5V?
Yes, the MAX6377XR25+T guarantees correct output logic state down to VCC = 1.0V. While its reset threshold is 2.50V, the internal circuitry remains functional and holds the OUT pin in the asserted (low) state until VCC rises above the threshold hysteresis band. This ensures fail-safe behavior during deep brownout and battery discharge tail-end conditions.
MAX6377XR25+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:
- Active
- Programmable:
- Not Verified
- Type:
- Voltage Detector
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.5V
- 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
MAX6377XR25+T FAQ
1.How can I place an order for MAX6377XR25+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6377XR25+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 MAX6377XR25+T reliable?
The price and inventory of MAX6377XR25+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6377XR25+T is usually 5 days.
3.What payment methods are accepted for MAX6377XR25+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6377XR25+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6377XR25+T?
MAX6377XR25+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6377XR25+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 MAX6377XR25+T?
For technical support, including MAX6377XR25+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6377XR25+T requirements.
6.How does Aetrix verify that MAX6377XR25+T is sourced from the original manufacturer or authorized distributors?
All MAX6377XR25+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 MAX6377XR25+T meets industry standards.
7.What is the process for return or replacement of MAX6377XR25+T?
All MAX6377XR25+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6377XR25+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 MAX6377XR25+T part is unused and in its original packaging.
Return procedure for MAX6377XR25+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6377XR25+T Tags
-
MIC826SYMT-TR
Microchip Technology
-
APX803S-31SA-7
Diodes Incorporated
-
APX803L20-29SA-7
Diodes Incorporated
-
TPS3828-33DBVR
Texas Instruments
-
V6340RSP3B+
EM Microelectronic
-
EM6325CXSP5B-2.9+
EM Microelectronic
-
MCP120T-300I/TT
Microchip Technology
-
MCP130T-315I/TT
Microchip Technology
-
MCP120T-475I/TT
Microchip Technology
-
MCP111T-300E/TT
Microchip Technology
-
MCP120T-315I/TT
Microchip Technology
-
MCP809T-315I/TT
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
