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Analog Devices Inc./Maxim Integrated MAX6715UTSDD3+T
- Part No.:
- MAX6715UTSDD3+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- -
- Datasheet:
-
MAX6715UTSDD3+T.pdf
- Description:
- IC SUPERVISOR MPU SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:3,185
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Product details
Overview
MAX6715UTSDD3+T from Maxim Integrated is a dual-voltage microprocessor supervisory circuit in SOT23-6 package, monitoring VCC1 (primary supply) and VCC2 (secondary supply) with factory-trimmed reset thresholds of 4.625V and 3.075V respectively, 210ms minimum reset timeout, and push-pull active-low RST output. It ensures reliable system reset during power-up, brownout, or undervoltage events in multivoltage embedded systems.
For engineers reviewing the MAX6715UTSDD3+T datasheet, MAX6715UTSDD3+T pinout, MAX6715UTSDD3+T application, or MAX6715UTSDD3+T equivalent, key selection criteria include dual-supply threshold accuracy (±1.5% over temperature), guaranteed reset validity down to VCC = 0.8V, low 14µA typical supply current at 3.6V, and compatibility with manual reset, watchdog-free operation, and industrial temperature range (-40°C to +85°C).
Technical Context
The MAX6715UTSDD3+T implements independent voltage comparators for VCC1 and VCC2, each with 20ppm/°C tempco and 0.5% hysteresis referenced to typical threshold. Its reset logic asserts RST low when either supply falls below its trimmed threshold and holds for ≥210ms after both supplies recover.
It features a push-pull RST output referenced to VCC1, internal 50kΩ MR pullup, and immunity to VCC transients ≤20µs (at 100mV overdrive). No RSTIN, WDI, PFI, or PFO functionality is included - this variant is optimized for basic dual-supply monitoring without auxiliary inputs or outputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Threshold | 4.625V (factory-trimmed, ±1.5% over -40°C to +85°C) |
| VCC2 Threshold | 3.075V (factory-trimmed, ±1.5% over -40°C to +85°C) |
| Reset Timeout | 210ms min (ensures µP initialization completes before release) |
| Supply Current | 14µA typ at 3.6V (enables battery-operated system longevity) |
| Operating Temp | -40°C to +85°C (supports industrial and telecom equipment environments) |
| Reset Validity | Down to VCC1 or VCC2 = 0.8V (guaranteed correct RST logic state during deep brownout) |
| Output Type | Push-pull active-low RST (no external pullup required; drives directly into µP reset pin) |
Pinout & Package
MAX6715UTSDD3+T is housed in a 6-pin SOT23-6 package (2.9mm × 1.6mm × 1.1mm), RoHS-compliant and lead-free (+T suffix), with gull-wing leads and standard thermal pad layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RST | Active-low push-pull reset output; sinks up to 3.2mA at VCC1 ≥ 4.5V; asserts when VCC1 < 4.625V or VCC2 < 3.075V |
| 2 | GND | Ground reference for all internal comparators and output drivers |
| 3 | MR | Active-low manual reset input; internally pulled up to VCC1 (50kΩ); forces RST low when pulled to GND |
| 4 | VCC2 | Secondary supply input; powers internal VCC2 comparator and sets VCC2 reset threshold (3.075V) |
| 5 | VCC1 | Primary supply input; powers device core and sets VCC1 reset threshold (4.625V); RST output referenced to this rail |
| 6 | NC | No connect; unused pin per MAX6715 functional configuration (no RST2, WDI, PFI, or PFO) |
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 at low VCC | Correct RST logic state maintained even when VCC1 or VCC2 drops to 0.8V - critical for brownout recovery |
| Low quiescent current | 14µA typical at 3.6V enables >10-year battery life in portable equipment with infrequent wake-ups |
| Transient-immune reset generation | Immunity to VCC glitches ≤20µs (at 100mV overdrive), preventing spurious resets in noisy power environments |
| Integrated MR pullup | 50kΩ internal pullup to VCC1 eliminates need for external resistor; simplifies PCB layout and reduces BOM count |
Applications
| Telecom Power Sequencing | Industrial PLC I/O Modules |
|---|---|
Use Scenario: Monitoring primary 4.8V DC-DC output and secondary 3.3V FPGA I/O rail in carrier-grade access equipment. IC Role / Device Role / Timing Role: Dual-supply supervisor ensuring synchronized reset assertion until both rails stabilize above 4.625V and 3.075V, with 210ms hold time for FPGA configuration. Use Value: Prevents partial configuration lockup by guaranteeing reset remains asserted until both supplies meet tight tolerance windows. | Use Scenario: Supervising 5V controller supply and 3.3V sensor interface rail in DIN-rail mounted programmable logic controllers. IC Role / Device Role / Timing Role: Push-pull RST output directly drives microcontroller reset pin; MR allows field technician-initiated reboot without power cycle. Use Value: Eliminates external pullup resistor and supports hot-swap diagnostics via manual reset - reducing component count and service downtime. |
| Medical Diagnostic Handheld | Network Switch Line Cards |
Use Scenario: Managing battery-backed 4.5V main logic supply and 3.0V analog front-end supply in portable ultrasound devices. IC Role / Device Role / Timing Role: Ensures clean boot sequence after Li-ion battery voltage sag; reset remains valid down to 0.8V on either rail during discharge. Use Value: Enables graceful shutdown and data preservation during low-battery conditions - meeting IEC 62304 safety requirements. | Use Scenario: Coordinating power-up of ASIC core (4.625V) and SerDes interface (3.075V) on high-speed Ethernet line cards. IC Role / Device Role / Timing Role: Factory-trimmed thresholds eliminate calibration; 210ms timeout accommodates slow-starting DC-DC converters. Use Value: Removes need for external RC timing network - improving production yield and long-term stability across temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-voltage supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS3808G33DBVR | Single-supply monitor (3.3V only); no VCC2 input; 200ms timeout; open-drain RST | Requires external resistor divider to monitor second rail; lacks native dual-threshold architecture | Select when only one supply needs supervision and board space permits external scaling network |
| ADM6715S26ARTZ-R7 | 4.63V VCC1 threshold (±2.5%), 3.08V VCC2 threshold (±2.5%), 200ms timeout, push-pull RST | Slightly looser threshold tolerance; same SOT23-6 footprint but different pinout (MR on Pin 6) | Choose for drop-in replacement where 2.5% threshold accuracy is acceptable and MR routing can be adjusted |
Compared with TPS3808G33DBVR and ADM6715S26ARTZ-R7, the MAX6715UTSDD3+T provides tighter factory-trimmed thresholds (±1.5%), guaranteed reset validity down to 0.8V on either supply, and native dual-input architecture eliminating external components - making it optimal for space-constrained, high-reliability multivoltage systems.
Availability
MAX6715UTSDD3+T is available at Aetrix Electronics and suitable for telecom power sequencing, industrial PLC I/O modules, medical diagnostic handhelds, and network switch line cards requiring stable component supply, long-lifecycle support, and guaranteed industrial temperature operation.
Supply support for MAX6715UTSDD3+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, mixed-signal, and power management ICs for demanding industrial, automotive, and communications applications.
The MAX6715–MAX6729 family delivers ultra-low-voltage, dual/triple-supply supervisory circuits in miniature SOT23 packages, targeting compact, battery-sensitive, and multirail embedded systems where reliability and minimal footprint are critical.
FAQ
What is the exact reset threshold voltage for VCC1 and VCC2 on the MAX6715UTSDD3+T?
The MAX6715UTSDD3+T 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 +85°C operating range. These values are encoded in the "TS" suffix per Maxim's Reset Voltage Threshold Suffix Guide and confirmed in the Electrical Characteristics table of the official datasheet.
Does the MAX6715UTSDD3+T support watchdog timer functionality?
No, the MAX6715UTSDD3+T does not include watchdog timer functionality. Per the Selector Guide and Functional Diagram, only MAX6721–MAX6729 variants integrate WDI. The MAX6715UTSDD3+T is a dedicated dual-supply supervisor with RST, MR, VCC1, and VCC2 pins - no WDI, RSTIN, PFI, or PFO connections are implemented.
What is the function of Pin 6 on the MAX6715UTSDD3+T?
Pin 6 on the MAX6715UTSDD3+T is a no-connect (NC) terminal. The MAX6715 variant uses only five functional pins (RST, GND, MR, VCC2, VCC1) in the SOT23-6 package; Pin 6 is unassigned and must remain floating. This is explicitly documented in the Pin Description table for MAX6715/MAX6716 in the datasheet.
Can the MAX6715UTSDD3+T monitor a 1.8V supply as VCC2?
Yes, the MAX6715UTSDD3+T can monitor a 1.8V supply on VCC2, but only as the secondary monitored rail - not as the threshold target. Its fixed VCC2 threshold is 3.075V, so it will assert reset if that 1.8V rail falls below 3.075V (which it never will). To supervise 1.8V, a different variant (e.g., MAX6715UTLTD3+T with VTH2 = 1.710V) must be selected using the appropriate suffix code.
Is the MAX6715UTSDD3+T pin-compatible with other MAX67xx SOT23-6 variants?
No - the MAX6715UTSDD3+T is not fully pin-compatible with other SOT23-6 MAX67xx variants. While Pin 1 (RST), Pin 2 (GND), Pin 3 (MR), Pin 4 (VCC2), and Pin 5 (VCC1) align, Pin 6 is NC on MAX6715 but assigned to WDI (MAX6721), RSTIN (MAX6719), or PFI (MAX6728). Swapping variants without layout review risks signal conflict or missing functionality.
MAX6715UTSDD3+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- -
- Number of Voltages Monitored:
- -
- Voltage - Threshold:
- -
- Output:
- -
- Reset:
- -
- Reset Timeout:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
MAX6715UTSDD3+T FAQ
1.How can I place an order for MAX6715UTSDD3+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6715UTSDD3+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 MAX6715UTSDD3+T reliable?
The price and inventory of MAX6715UTSDD3+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6715UTSDD3+T is usually 5 days.
3.What payment methods are accepted for MAX6715UTSDD3+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6715UTSDD3+T transactions.
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4.How is shipping managed for MAX6715UTSDD3+T?
MAX6715UTSDD3+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6715UTSDD3+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 MAX6715UTSDD3+T?
For technical support, including MAX6715UTSDD3+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6715UTSDD3+T requirements.
6.How does Aetrix verify that MAX6715UTSDD3+T is sourced from the original manufacturer or authorized distributors?
All MAX6715UTSDD3+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 MAX6715UTSDD3+T meets industry standards.
7.What is the process for return or replacement of MAX6715UTSDD3+T?
All MAX6715UTSDD3+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6715UTSDD3+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 MAX6715UTSDD3+T part is unused and in its original packaging.
Return procedure for MAX6715UTSDD3+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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