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Analog Devices Inc./Maxim Integrated MAX6715AUTSHD3+
- Part No.:
- MAX6715AUTSHD3+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6715AUTSHD3+.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:298
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Product details
Overview
MAX6715AUTSHD3+ from Maxim Integrated is a dual-voltage microprocessor supervisory IC monitoring VCC1 (primary) and VCC2 (secondary) supply rails, with factory-trimmed reset thresholds of 4.625V (VTH1) and 3.075V (VTH2), 210ms minimum reset timeout, push-pull active-low RST output, and operation from -40°C to +125°C in a 6-pin SOT23 package. It ensures reliable system reset during power-up, brownout, or undervoltage events in multivoltage embedded systems.
For engineers reviewing the MAX6715AUTSHD3+ datasheet, MAX6715AUTSHD3+ pinout, MAX6715AUTSHD3+ application, or MAX6715AUTSHD3+ equivalent, key selection criteria include dual-supply threshold accuracy (±1.5% over temperature), guaranteed reset validity down to VCC1/VCC2 = 0.8V, low 15µA typical supply current at 3.6V, immunity to sub-20µs VCC transients, and compatibility with manual-reset and watchdog-free configurations.
Technical Context
The MAX6715AUTSHD3+ integrates two independent voltage comparators with precision internal references (VTH1 = 4.625V, VTH2 = 3.075V), a programmable reset timeout timer (210ms min), and push-pull RST output referenced to VCC1. Its reset logic asserts when either VCC1 falls below 4.625V or VCC2 falls below 3.075V, and holds for the full timeout after both supplies recover.
This device lacks RSTIN, WDI, PFI, and PFO pins - confirmed by its MAX6715A variant designation and 6-pin SOT23 pinout - making it a dedicated dual-supply monitor without auxiliary inputs or watchdog functionality. Its internal 50kΩ MR pullup enables direct connection of a momentary switch to GND for manual reset initiation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Reset Threshold | 4.625V (factory-trimmed, ±1.5% over -40°C to +125°C); ensures reliable reset assertion on 5V primary rail brownout |
| VCC2 Reset Threshold | 3.075V (factory-trimmed, ±1.5% over -40°C to +125°C); matches common 3.3V secondary rail with margin |
| Reset Timeout Period | 210ms minimum; provides sufficient hold time for μP initialization and peripheral stabilization |
| Supply Current | 15µA typical at 3.6V; enables ultra-low-power operation in battery-backed or energy-sensitive systems |
| Operating Temperature | -40°C to +125°C; qualified for under-hood automotive, industrial control, and telecom infrastructure use |
| Reset Output Type | Push-pull active-low RST; eliminates need for external pullup and drives directly into μP reset pin |
| MR Input | Active-low with internal 50kΩ pullup to VCC1; supports simple switch-to-GND manual reset without external components |
Pinout & Package
MAX6715AUTSHD3+ uses a 6-pin SOT23 package (JEDEC MO-178AA), with pin 1 marked by dot. The device implements only VCC1, VCC2, GND, MR, RST, and NC functions - no RSTIN, WDI, PFI, or PFO terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (RST) | Active-low reset output | Push-pull driver referenced to VCC1; asserts low during fault and holds for 210ms min after recovery |
| 2 (GND) | Ground reference | Common return for all internal comparators, timer, and output driver; must be low-impedance |
| 3 (MR) | Manual-reset input | Active-low with internal 50kΩ pullup; pulling low forces immediate reset, held for full timeout after release |
| 4 (VCC2) | Secondary supply input | Powers internal circuitry when VCC2 > VCC1; monitored against 3.075V threshold |
| 5 (VCC1) | Primary supply input | Main power source and reference for RST output; monitored against 4.625V threshold |
| 6 (NC) | No-connect | Unused pin; must remain unconnected per datasheet to avoid functional interference |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitoring | Simultaneous VCC1 (4.625V) and VCC2 (3.075V) supervision with separate comparators and hysteresis |
| Guaranteed reset validity down to 0.8V | Ensures correct RST logic state even during deep brownout - critical for fail-safe shutdown sequencing |
| Immunity to short VCC transients | Rejects glitches <20µs duration, preventing spurious resets during switching noise or load transients |
| Low 15µA supply current | Minimizes quiescent power draw in always-on subsystems such as real-time clocks or backup controllers |
| Factory-trimmed thresholds | Eliminates external resistor networks and calibration; reduces BOM count and layout area vs. adjustable supervisors |
Applications
| Industrial PLC Power Sequencing | Automotive ADAS Camera Module |
|---|---|
Use Scenario: Monitoring 5V main and 3.3V I/O rails in programmable logic controller backplanes during cold cranking or load dump. IC Role / Device Role / Timing Role: Dual-rail supervisor asserting reset until both supplies stabilize above 4.625V and 3.075V, with 210ms hold time ensuring FPGA configuration completion. Use Value: Prevents partial initialization and latch-up by guaranteeing synchronized release of μP and peripherals after power recovery. |
Use Scenario: Ensuring clean boot of image signal processor and MIPI interface in automotive surround-view cameras exposed to wide temperature swings. IC Role / Device Role / Timing Role: Supervising 5V camera core and 3.3V sensor interface supplies across -40°C to +125°C ambient, with push-pull RST driving ISP reset pin directly. Use Value: Eliminates external pullup resistors and reduces PCB footprint while maintaining AEC-Q100-compatible reliability. |
| Telecom Line Card Voltage Monitoring | Medical Infusion Pump Controller |
Use Scenario: Validating redundant 5V and 3.3V DC/DC outputs on carrier-grade line cards subject to hot-swap events and ESD stress. IC Role / Device Role / Timing Role: Providing deterministic reset assertion on any rail drop below threshold, with 0.8V minimum VCC operation enabling detection of early-stage supply collapse. Use Value: Enables rapid fault containment and graceful service interruption without software intervention. |
Use Scenario: Securing safe startup and brownout response in battery-powered infusion pumps where supply integrity directly impacts patient safety. IC Role / Device Role / Timing Role: Dual-supply monitoring of 3.3V MCU and 5V motor driver rails, with manual-reset support for clinician-initiated reboots via front-panel button. Use Value: Meets IEC 62304 Class C requirements through hardware-enforced reset timing and deterministic fault detection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-supply supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS3808G33DBVR | Single-supply monitor (3.3V threshold only); requires external resistor network for dual-rail use | Lacks integrated VCC2 monitoring path; adds design complexity and component count for dual-rail systems | Select when only one rail needs supervision or when cost-per-function is prioritized over integration |
| ADM6823ARJZ-RL7 | Fixed 3.08V VCC2 threshold but 4.38V VCC1 threshold (vs. 4.625V); 200ms timeout (vs. 210ms) | Slightly lower VCC1 trip point may cause premature reset on marginal 5V rails; tighter tolerance (±0.5%) but narrower temp range (-40°C to +105°C) | Prefer for designs requiring tighter threshold accuracy at reduced temperature coverage |
Compared with TPS3808G33DBVR and ADM6823ARJZ-RL7, MAX6715AUTSHD3+ delivers true integrated dual-rail supervision with higher VCC1 threshold margin, guaranteed operation to +125°C, and push-pull output eliminating external biasing - reducing total solution size and validation effort in high-reliability multivoltage systems.
Availability
MAX6715AUTSHD3+ is available at Aetrix Electronics and suitable for industrial PLCs, automotive ADAS modules, and telecom line cards requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-aligned reliability.
Supply support for MAX6715AUTSHD3+ 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 demanding industrial, automotive, and communications applications.
The MAX6715A–MAX6729A family delivers ultra-low-voltage, multirail supervisory circuits optimized for space-constrained, high-temperature systems requiring deterministic power-on reset and brownout protection without software dependency.
FAQ
What is the exact reset threshold voltage for VCC1 and VCC2 on the MAX6715AUTSHD3+?
The MAX6715AUTSHD3+ has factory-trimmed reset thresholds of 4.625V for VCC1 and 3.075V for VCC2, with ±1.5% tolerance over the full -40°C to +125°C operating range. These values are fixed by the "SH" suffix per Maxim's Reset Voltage Threshold Suffix Guide and do not require external resistor configuration.
Does the MAX6715AUTSHD3+ support watchdog timer functionality?
No, the MAX6715AUTSHD3+ does not include a watchdog timer. It belongs to the MAX6715A base variant group, which omits WDI and related circuitry. Watchdog capability is only present in MAX6721A–MAX6729A/MAX6797A variants - confirmed by pinout (no WDI pin) and functional diagram exclusions in the datasheet.
What is the function of Pin 6 on the MAX6715AUTSHD3+?
Pin 6 on the MAX6715AUTSHD3+ is a no-connect (NC) terminal. It is internally unconnected and must remain unattached in the PCB layout to prevent unintended coupling or leakage paths that could affect reset timing or threshold accuracy.
Can the MAX6715AUTSHD3+ monitor a third voltage rail?
No, the MAX6715AUTSHD3+ is strictly a dual-supply supervisor. It lacks the RSTIN pin required for external voltage monitoring and does not support triple-rail operation. Third-rail supervision requires variants like MAX6719A or MAX6723A, which include the RSTIN input and associated comparator.
What is the maximum VCC transient duration the MAX6715AUTSHD3+ can ignore without asserting reset?
The MAX6715AUTSHD3+ rejects negative-going VCC transients up to 20µs in duration when the overdrive is ≥100mV below the reset threshold - verified by Typical Operating Characteristics graph "Maximum VCC Transient Duration vs. Reset Threshold Overdrive". This immunity prevents false resets during switching regulator noise or ESD-induced dips.
MAX6715AUTSHD3+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 2
- Voltage - Threshold:
- 1.313V, 2.925V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-6
MAX6715AUTSHD3+ FAQ
1.How can I place an order for MAX6715AUTSHD3+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6715AUTSHD3+ 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 MAX6715AUTSHD3+ reliable?
The price and inventory of MAX6715AUTSHD3+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6715AUTSHD3+ is usually 5 days.
3.What payment methods are accepted for MAX6715AUTSHD3+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6715AUTSHD3+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6715AUTSHD3+?
MAX6715AUTSHD3+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6715AUTSHD3+ 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 MAX6715AUTSHD3+?
For technical support, including MAX6715AUTSHD3+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6715AUTSHD3+ requirements.
6.How does Aetrix verify that MAX6715AUTSHD3+ is sourced from the original manufacturer or authorized distributors?
All MAX6715AUTSHD3+ 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 MAX6715AUTSHD3+ meets industry standards.
7.What is the process for return or replacement of MAX6715AUTSHD3+?
All MAX6715AUTSHD3+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6715AUTSHD3+, 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 MAX6715AUTSHD3+ part is unused and in its original packaging.
Return procedure for MAX6715AUTSHD3+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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