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Analog Devices Inc./Maxim Integrated MAX6347XR41-T
- Part No.:
- MAX6347XR41-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
MAX6347XR41-T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,940
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Product details
Overview
MAX6347XR41-T from Maxim Integrated is an active-high push-pull microprocessor supervisory circuit that monitors VCC supply voltage and asserts a reset signal when voltage falls below 4.100V (typical), maintaining reset for ≥100ms after recovery; it operates from 1.2V to 5.5V, draws ≤1.0µA supply current, and is housed in a 3-pin SC70 package for space-constrained embedded systems requiring reliable power-on/brownout reset.
For engineers reviewing the MAX6347XR41-T datasheet, MAX6347XR41-T pinout, MAX6347XR41-T application, or MAX6347XR41-T equivalent, this device serves as a precision, ultra-low-power reset supervisor for 3.3V/5V µP systems where active-high logic compatibility, transient immunity, and guaranteed state down to 1V are critical selection criteria.
Technical Context
The MAX6347XR41-T implements a factory-trimmed bandgap-based reset comparator with ±1.5% threshold accuracy at +25°C and ±2.5% over –40°C to +85°C, featuring 40ppm/°C tempco and 6.3mV hysteresis to prevent chatter during slow VCC ramps. Its internal reference and comparator operate independently of VCC down to 1.0V, ensuring valid reset assertion even during deep brownout.
It delivers an active-high push-pull RESET output capable of sourcing ≥500µA at 0.8·VCC while asserted, with VOL ≤0.4V when not asserted under load; the output remains fully specified across its full temperature range and supports direct interface to µP reset inputs without external pull-up resistors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 4.100V (typ), 4.038V–4.161V (min–max at +25°C); ensures reliable reset activation for 5V systems experiencing nominal 4.1V brownout. |
| Supply Current | ≤1.0µA (max at +25°C, VCC = 3.2V); enables multi-year battery life in portable equipment. |
| Reset Timeout | 100–280ms (min–max over temperature); guarantees sufficient µP initialization time after power stabilization. |
| VCC Operating Range | 1.2V to 5.5V (–40°C to +85°C); supports operation during deep undervoltage and compatibility with 2.5V/3.3V/5V rails. |
| Output Type | Active-high push-pull; eliminates need for external pull-up resistor and ensures fast, low-impedance reset deassertion. |
| Threshold Tempco | 40ppm/°C; limits drift to <±15mV over full temperature range, preserving reset margin in industrial environments. |
| Reset Hysteresis | 6.3mV; prevents oscillation during slow VCC recovery near threshold, improving system stability. |
Pinout & Package
MAX6347XR41-T is packaged in a 3-pin SC70-3 (X3-2 outline) surface-mount package measuring 2.0mm × 2.1mm × 0.95mm, optimized for high-density PCB layouts and reflow-compatible assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for internal comparator and output stage; must be connected directly to system ground plane for noise immunity. |
| 2 | RESET | Active-high push-pull output; drives high during VCC fault and for ≥100ms post-recovery; sinks ≤0.4V when low, sources ≥0.8·VCC when high. |
| 3 | VCC | Power supply input; accepts 1.2V–5.5V; internally powers reset comparator and output driver; tolerates transients up to 100V/µs. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low supply current | 1µA max enables >10-year battery life in coin-cell-powered IoT sensors and wearables. |
| Precision reset threshold | Factory-trimmed 4.100V ±1.5% at +25°C ensures consistent brownout detection across production lots. |
| Guaranteed operation down to 1V | Valid reset assertion and output state maintained even during severe undervoltage, supporting fail-safe shutdown. |
| Transient immunity | Rejects VCC glitches <100µs wide (at 200mV overdrive), preventing spurious resets in noisy power environments. |
| No external components | Self-contained supervision eliminates R/C networks, reducing BOM count, board area, and calibration effort. |
Applications
| Industrial PLC Controllers | Portable Medical Monitors |
|---|---|
Use Scenario: Microcontroller-based programmable logic controllers operating in factory-floor environments with fluctuating 24VDC-derived 5V rails. IC Role / Device Role / Timing Role: Active-high reset supervisor asserting clean, glitch-free reset during line sags and EMI-induced dips. Use Value: Prevents firmware corruption by guaranteeing ≥100ms reset hold time after VCC recovery, aligning with µP boot ROM requirements. |
Use Scenario: Battery-powered ECG and pulse oximeter devices requiring multi-year operation on CR2032 cells. IC Role / Device Role / Timing Role: Low-current supervisor monitoring regulated 3.3V rail derived from buck converter, triggering reset at 4.1V to preserve data integrity during battery depletion. Use Value: 1µA max ICC extends usable battery life by >30% versus typical 5µA supervisors, delaying replacement cycles. |
| Network Edge Routers | Smart Energy Meters |
Use Scenario: Fanless residential gateways powered from PoE injectors with marginal 5V regulation under thermal stress. IC Role / Device Role / Timing Role: Precision reset generator ensuring deterministic reboot after brownout events caused by cable resistance or overload. Use Value: ±2.5% threshold tolerance over temperature maintains safe reset margin across –40°C to +85°C ambient, avoiding premature or delayed resets. |
Use Scenario: ANSI C12.20-compliant electricity meters deployed in outdoor enclosures subject to wide thermal cycling. IC Role / Device Role / Timing Role: Fail-safe supervisor monitoring isolated 3.3V auxiliary rail, asserting active-high reset compatible with meter SoC's dedicated reset input. Use Value: Push-pull output eliminates external pull-up, reducing component count and failure points in long-lifecycle field deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset supervision applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6327XR41-T | Same 4.100V threshold and SC70-3 package, but belongs to legacy MAX632x series with identical electrical specs and pinout. | No functional difference; MAX6327XR41-T shares identical timing, current, and voltage specs-only part numbering differs per product family revision. | Select MAX6327XR41-T if legacy design documentation or procurement systems reference the MAX632x prefix. |
| TPS3124-41DBVR | 4.1V active-high supervisor in SOT23-3; higher ICC (3µA typ), wider threshold tolerance (±2.5% over temp), no 1V operation guarantee. | Lacks guaranteed functionality below 1.8V; unsuitable for deep-brownout detection but offers tighter AEC-Q100 qualification for automotive edge cases. | Choose TPS3124-41DBVR only when automotive qualification is mandatory and 1V operation is not required. |
Compared with MAX6347XR41-T, MAX6327XR41-T is functionally identical and pin-compatible, whereas TPS3124-41DBVR trades ultra-low current and sub-1.2V operation for automotive qualification-making MAX6347XR41-T optimal for battery-critical, wide-voltage industrial designs.
Availability
MAX6347XR41-T is available at Aetrix Electronics and suitable for industrial PLC controllers, portable medical monitors, and smart energy meters requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MAX6347XR41-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 industrial, communications, and consumer applications, emphasizing reliability, integration, and low-power operation.
The MAX6347XR41-T belongs to Maxim's ultra-low-power µP supervisory family, engineered specifically for embedded systems demanding guaranteed reset behavior across wide voltage and temperature ranges without external components.
FAQ
What is the exact reset threshold voltage of MAX6347XR41-T?
The MAX6347XR41-T has a factory-trimmed nominal reset threshold of 4.100V at +25°C, with a guaranteed range of 4.038V to 4.161V at room temperature and 3.997V to 4.202V over the full –40°C to +85°C operating range. This precise threshold ensures consistent brownout detection for 5V systems and is documented in Table 1 of the MAX6347XR41-T datasheet.
Does MAX6347XR41-T support operation below 2.5V?
Yes, MAX6347XR41-T is fully specified to operate from VCC = 1.2V to 5.5V over –40°C to +85°C, and its reset comparator remains functional down to 1.0V. This allows reliable reset assertion during deep brownout conditions common in battery-powered or unregulated supply applications, a key differentiator from many competing supervisors.
Is MAX6347XR41-T pin-compatible with MAX809 or MAX810?
No, MAX6347XR41-T is not pin-compatible with MAX809/MAX810. While all are 3-pin reset supervisors, MAX809/MAX810 use SOT23-3 with pin 1 = VCC, pin 2 = GND, pin 3 = RESET, whereas MAX6347XR41-T uses SC70-3 with pin 1 = GND, pin 2 = RESET, pin 3 = VCC. Physical layout and signal routing must be redesigned for substitution.
What is the maximum supply current of MAX6347XR41-T?
The maximum supply current of MAX6347XR41-T is 1.0µA at +25°C and VCC = 3.2V (for VTH > 2.93V), rising to 1.75µA at VCC = 5.5V. This ultra-low ICC enables multi-year operation in battery-backed systems and is measured with no load on the RESET output, as specified in the Electrical Characteristics table.
Can MAX6347XR41-T replace a MAX6327XR41-T in an existing design?
Yes, MAX6347XR41-T can directly replace MAX6327XR41-T: both share identical SC70-3 pinout, 4.100V reset threshold, active-high push-pull output, 1µA max ICC, and –40°C to +85°C operation. The MAX6347 designation reflects a later product revision with no functional or parametric changes-only updated ordering and marking codes.
MAX6347XR41-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:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 4.1V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active High
- Reset Timeout:
- 100ms Minimum
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-3
MAX6347XR41-T FAQ
1.How can I place an order for MAX6347XR41-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6347XR41-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 MAX6347XR41-T reliable?
The price and inventory of MAX6347XR41-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6347XR41-T is usually 5 days.
3.What payment methods are accepted for MAX6347XR41-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6347XR41-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6347XR41-T?
MAX6347XR41-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6347XR41-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 MAX6347XR41-T?
For technical support, including MAX6347XR41-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6347XR41-T requirements.
6.How does Aetrix verify that MAX6347XR41-T is sourced from the original manufacturer or authorized distributors?
All MAX6347XR41-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 MAX6347XR41-T meets industry standards.
7.What is the process for return or replacement of MAX6347XR41-T?
All MAX6347XR41-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6347XR41-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 MAX6347XR41-T part is unused and in its original packaging.
Return procedure for MAX6347XR41-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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