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Analog Devices Inc./Maxim Integrated MAX6375XR29-T
- Part No.:
- MAX6375XR29-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
MAX6375XR29-T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:1,738
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Product details
Overview
MAX6375XR29-T from Maxim Integrated is an ultra-low-power, active-low voltage detector in SC70-3 package, with factory-trimmed 2.93V threshold (±2.5% over temperature), 500nA supply current, and push-pull output. It monitors VCC in portable battery-powered systems and asserts logic-low OUT when supply drops below threshold - used for precision brownout detection in microcontroller reset circuits.
For engineers reviewing the MAX6375XR29-T datasheet, MAX6375XR29-T pinout, MAX6375XR29-T application, or MAX6375XR29-T equivalent, key selection criteria include its 2.93V trip point, SC70-3 footprint, -40°C to +85°C operation, immunity to sub-20µs VCC transients, and compatibility with 1.2V–5.5V supply rails.
Technical Context
The MAX6375XR29-T implements a precision bandgap reference and comparator with internally trimmed resistors to set its 2.93V detection threshold. Its push-pull output drives low without external pull-up and remains valid down to VCC = 1V, ensuring reliable reset assertion during deep brownout conditions.
Designed for single-function voltage monitoring, it ignores fast negative-going VCC transients up to 20µs (at 100mV overdrive) and guarantees ±2.5% threshold accuracy across -40°C to +85°C. Propagation delay is 6.3µs (typical) with 0.1mV hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Threshold Voltage | 2.93V (factory-trimmed, ±2.5% over -40°C to +85°C) - sets precise brownout detection point for 3.0V/3.3V systems |
| Supply Current | 500nA (typical at +25°C) - enables multi-year battery life in coin-cell–powered devices |
| Output Type | Active-low push-pull - eliminates need for external pull-up resistor and supports direct MCU reset input |
| VCC Operating Range | 1.2V to 5.5V - ensures valid output state even during severe undervoltage, down to 1V logic hold |
| Propagation Delay | 6.3µs (typical, falling edge) - provides fast response to supply collapse while rejecting noise |
| Threshold Hysteresis | 0.1mV - prevents chatter near trip point without compromising detection resolution |
| Tempco | 40ppm/°C - maintains stable threshold across industrial temperature range |
Pinout & Package
MAX6375XR29-T is housed in a 3-pin SC70-3 package (2.0mm × 2.1mm × 0.95mm), optimized for space-constrained portable designs. Pin 1 is GND, Pin 2 is OUT (active-low push-pull), and Pin 3 is VCC.
| 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 push-pull output - sinks current when VCC < 2.93V; drives high-impedance when VCC ≥ threshold |
| 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 IoT sensors using CR2032 cells |
| No external components required | Internally trimmed resistors and bandgap eliminate calibration parts and PCB area |
| Transient immunity | Rejects VCC glitches ≤20µs duration (at 100mV overdrive), preventing false resets |
| Guaranteed output state down to 1V | Ensures deterministic reset behavior during deep brownout, before MCU core loses functionality |
| SC70-3 footprint compatibility | Matches industry-standard 3-pin voltage detector layout, enabling drop-in replacement in existing designs |
Applications
| Portable Medical Sensors | Wearables with Li+ Battery |
|---|---|
|
Use Scenario: Continuous glucose monitor powered by CR2032 coin cell, requiring reliable power-on reset and brownout detection. IC Role / Device Role / Timing Role: Voltage detector providing active-low reset signal to ultra-low-power MCU upon VCC drop below 2.93V. Use Value: 500nA supply current extends battery life beyond 3 years; SC70-3 size fits within 8mm² wearable PCB area budget. |
Use Scenario: Smart fitness band using single-cell Li+ (2.7V–4.2V) with buck-boost regulator; needs accurate 2.93V undervoltage lockout. IC Role / Device Role / Timing Role: Brownout detector asserting reset to ARM Cortex-M0+ when regulated 3.0V rail collapses. Use Value: ±2.5% threshold accuracy ensures consistent shutdown before data corruption; push-pull output interfaces directly to MCU nRESET pin. |
| Industrial Remote Sensor Nodes | Asset Tracking Tags |
|
Use Scenario: LoRaWAN environmental sensor node deployed in unheated outdoor enclosures (-40°C to +85°C). IC Role / Device Role / Timing Role: Supply monitor ensuring microcontroller remains held in reset until regulated 3.3V rail stabilizes post-power-up. Use Value: Guaranteed operation at 1V VCC and 40ppm/°C tempco maintain reset integrity across full temperature range. |
Use Scenario: GPS asset tracker powered by primary alkaline AA cells, where voltage decays gradually from 3.2V to 1.8V. IC Role / Device Role / Timing Role: Threshold detector triggering graceful firmware shutdown when battery reaches 2.93V end-of-life point. Use Value: 6.3µs propagation delay enables timely shutdown before EEPROM write corruption; no external components reduce BOM count. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage detector applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV803EB29DBZR | 2.93V threshold, SOT23-3, 350nA supply current, open-drain output | Requires external pull-up; lower ICC but incompatible pinout (GND/OUT/VCC vs. GND/VCC/OUT) | Select if open-drain flexibility and lowest possible current are prioritized over board-space and simplicity |
| APX803S-29SA-7 | 2.93V threshold, SOT23-3, 600nA supply current, push-pull output, same pinout as MAX6375XR29-T | Same SC70/SOT23 footprint compatibility; slightly higher ICC but AEC-Q100 qualified | Prefer for automotive-grade designs requiring qualification, with minimal layout change |
Compared with TLV803EB29DBZR and APX803S-29SA-7, the MAX6375XR29-T offers optimal balance of ultra-low ICC, push-pull simplicity, and SC70-3 compactness - making it ideal for consumer and industrial portable systems where board area and component count are critical.
Availability
MAX6375XR29-T is available at Aetrix Electronics and suitable for portable medical sensors, wearables with Li+ battery, industrial remote sensor nodes, and asset tracking tags requiring stable component supply and long-term manufacturability.
Supply support for MAX6375XR29-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 semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, computing, and communications applications.
The MAX6375–MAX6380 family was designed specifically for ultra-low-power voltage monitoring in battery-critical systems, delivering precision thresholds, nanoscale current draw, and robust transient immunity in minimal footprints.
FAQ
What is the exact threshold voltage of the MAX6375XR29-T and how stable is it over temperature?
The MAX6375XR29-T has a factory-trimmed nominal threshold voltage of 2.93V, with guaranteed accuracy of ±2.5% over the full operating temperature range of -40°C to +85°C. Its temperature coefficient is 40ppm/°C, meaning the threshold drifts less than 12mV across the entire range - sufficient for reliable brownout detection in 3.0V and 3.3V systems without recalibration.
Does the MAX6375XR29-T require any external components to operate?
No, the MAX6375XR29-T requires zero external components. Its precision bandgap reference, comparator, and threshold-setting resistors are fully integrated and factory-trimmed. The active-low push-pull output drives directly into an MCU reset pin without needing a pull-up resistor - simplifying design and reducing BOM cost and PCB area.
Can the MAX6375XR29-T operate reliably when the supply voltage drops below 2.0V?
Yes - the MAX6375XR29-T guarantees correct output logic state (active-low when VCC < 2.93V) down to VCC = 1.0V. This ensures deterministic reset assertion even during deep brownout events, well below typical MCU operating minimums, preventing undefined behavior or data corruption in the host system.
What is the maximum transient duration the MAX6375XR29-T can ignore on the VCC line?
The MAX6375XR29-T rejects negative-going VCC transients up to 20µs in duration when the overdrive (VTH – VCC) is 100mV. As overdrive increases, allowable pulse width decreases per the "Maximum Transient Duration vs. Threshold Overdrive" curve in the datasheet - ensuring immunity to common switching noise without sacrificing responsiveness.
Is the MAX6375XR29-T pin-compatible with other devices in the MAX6375–MAX6380 family?
Yes - all MAX6375–MAX6380 variants share identical SC70-3 and SOT23-3 pinouts: Pin 1 = GND, Pin 2 = OUT, Pin 3 = VCC. The MAX6375XR29-T is functionally and physically interchangeable with other R-suffix parts (e.g., MAX6375XR26-T or MAX6375XR31-T) in the same package, enabling easy threshold tuning without layout changes.
MAX6375XR29-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:
- 2.93V
- 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
MAX6375XR29-T FAQ
1.How can I place an order for MAX6375XR29-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6375XR29-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 MAX6375XR29-T reliable?
The price and inventory of MAX6375XR29-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6375XR29-T is usually 5 days.
3.What payment methods are accepted for MAX6375XR29-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6375XR29-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6375XR29-T?
MAX6375XR29-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6375XR29-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 MAX6375XR29-T?
For technical support, including MAX6375XR29-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6375XR29-T requirements.
6.How does Aetrix verify that MAX6375XR29-T is sourced from the original manufacturer or authorized distributors?
All MAX6375XR29-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 MAX6375XR29-T meets industry standards.
7.What is the process for return or replacement of MAX6375XR29-T?
All MAX6375XR29-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6375XR29-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 MAX6375XR29-T part is unused and in its original packaging.
Return procedure for MAX6375XR29-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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