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Analog Devices Inc./Maxim Integrated MAX6715UTYHD3+T
- Part No.:
- MAX6715UTYHD3+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6715UTYHD3+T.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:2,048
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Product details
Overview
MAX6715UTYHD3+T from Maxim Integrated is a dual-voltage microprocessor supervisory circuit in SOT23-6 package, monitoring VCC1 (primary) and VCC2 (secondary) supplies with factory-trimmed reset thresholds of 4.625V (VTH1) and 3.075V (VTH2), 210ms minimum reset timeout, push-pull active-low RST output, and guaranteed reset validity down to VCC1 or VCC2 = 0.8V - used in telecom power sequencing and server board management.
For engineers reviewing the MAX6715UTYHD3+T datasheet, MAX6715UTYHD3+T pinout, MAX6715UTYHD3+T application, or MAX6715UTYHD3+T equivalent, key selection criteria include dual-supply threshold accuracy (±1.5% over temperature), low 14µA typical supply current at 3.6V, immunity to sub-20µs VCC transients, and compatibility with manual reset and watchdog-free system architectures.
Technical Context
The MAX6715UTYHD3+T implements independent voltage comparators for VCC1 and VCC2, each referenced to a precision internal bandgap, with hysteresis (0.5%) and tempco (20ppm/°C) specified across –40°C to +85°C. Its reset logic asserts RST low when either supply falls below its trimmed threshold and holds for a fixed 210ms (min) timeout after recovery.
No watchdog, power-fail, or RSTIN inputs are integrated - confirmed by Selector Guide and Pin Description tables showing MAX6715 as 2-monitor, push-pull RST-only, MR-enabled, no WDI/PFI/RSTIN. All timing and threshold parameters are production-guaranteed, not design-limited.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Threshold | 4.625V (typ), ±1.5% tolerance over temperature - sets reliable brownout detection for 5V or 4.8V primary rails |
| VCC2 Threshold | 3.075V (typ), ±1.5% tolerance - enables precise monitoring of 3.3V I/O or auxiliary supplies |
| Reset Timeout | 210ms (min), factory-set via D3 suffix - ensures sufficient hold time for CPU initialization and peripheral settling |
| Supply Current | 14µA (typ) at 3.6V - minimizes quiescent load on battery-backed or low-power systems |
| Operating Temp | –40°C to +85°C - qualified for industrial and telecom equipment environments |
| Reset Output | Push-pull, active-low RST referenced to VCC1 - eliminates need for external pullup and drives directly into µP reset pin |
| Valid Reset Down To | VCC1 or VCC2 ≥ 0.8V - guarantees deterministic reset state during deep brownout or soft-start conditions |
Pinout & Package
MAX6715UTYHD3+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 optimized for automated PCB assembly and thermal performance in space-constrained applications.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RST | Active-low push-pull reset output referenced to VCC1; sinks 3.2mA at VCC1 ≥ 4.5V; asserts when VCC1 < 4.625V or VCC2 < 3.075V |
| 2 | GND | Analog/digital ground reference for all internal comparators and output drivers |
| 3 | MR | Active-low manual reset input with 50kΩ internal pullup to VCC1; 1µs minimum pulse width; glitch rejection >100ns |
| 4 | VCC2 | Secondary supply input (0.9V–3.3V range); powers internal VCC2 comparator and sets RST2 reference if present (not used in MAX6715) |
| 5 | VCC1 | Primary supply input (1.8V–5.0V range); powers device core, references RST output, and feeds VCC1 comparator |
| 6 | NC | No connect - internally unconnected; must be left floating or tied to GND per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitors | Simultaneous VCC1 and VCC2 supervision with separate thresholds avoids single-point failure in multirail systems |
| Factory-trimmed precision thresholds | 4.625V / 3.075V thresholds trimmed to ±1.5% - eliminates external resistor calibration and reduces BOM count |
| Guaranteed reset validity to 0.8V | Ensures clean, monotonic reset assertion even during severe undervoltage events before full power collapse |
| Push-pull RST output | Drives µP reset pin directly without external pullup - simplifies layout and improves noise immunity vs. open-drain alternatives |
| Low 14µA supply current | Enables use in always-on subsystems (e.g., RTC backup, wake-on-LAN) without compromising battery life |
Applications
| Telecom Line Card Power Sequencing | Industrial PLC CPU Board Supervision |
|---|---|
Use Scenario: Dual-rail power-up of FPGA + ARM processor on carrier-grade line card requiring strict voltage order and timing. IC Role / Device Role / Timing Role: Monitors 4.8V backplane rail (VCC1) and 3.3V I/O rail (VCC2); asserts RST until both stabilize above thresholds and hold for 210ms. Use Value: Prevents configuration lockup by enforcing minimum power-good window before releasing CPU reset, eliminating field returns due to boot failures. |
Use Scenario: Embedded controller in programmable logic controller subjected to wide ambient temperature swings and EMI-rich factory floor environments. IC Role / Device Role / Timing Role: Provides deterministic reset during 24VDC-to-3.3V conversion brownouts; MR pin allows operator-initiated firmware reload via front-panel button. Use Value: Guarantees reset assertion down to 0.8V VCC, ensuring safe state capture even during rapid AC dropout - critical for safety-critical motion control. |
| Server Baseboard Management Controller (BMC) | Medical Diagnostic Imaging Subsystem |
Use Scenario: BMC power domain in 1U rack server where 5V standby and 3.3V main rails must be validated before host boot. IC Role / Device Role / Timing Role: Supervises VCC1 (5VSB) and VCC2 (3.3V) with 4.625V/3.075V thresholds; RST released only after both rails meet spec and timeout expires. Use Value: Eliminates false resets caused by transient coupling between rails - improves BMC uptime and remote diagnostics reliability. |
Use Scenario: Image sensor interface module in portable ultrasound device powered by Li-ion battery with variable discharge profile. IC Role / Device Role / Timing Role: Monitors buck-converted 4.5V analog supply (VCC1) and 3.0V digital core (VCC2); triggers hard reset before ADC data corruption occurs. Use Value: 14µA quiescent current extends battery runtime between calibrations; 210ms timeout accommodates slow LDO settling in low-noise analog chains. |
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 | 3.3V fixed VDD threshold only; no secondary monitor; 200ms timeout; open-drain RST | Single-rail systems only; requires external pullup; less flexible for dual-supply validation | Select when only primary rail supervision is needed and board space permits pullup resistor |
| ADM6710LAKSZ-REEL7 | 4.63V/3.08V thresholds (±2.5%); 200ms timeout; push-pull RST; -40°C to +125°C rating | Higher temp grade; looser threshold tolerance; same pinout but different reset delay granularity | Choose for extended temperature operation where ±2.5% threshold variation is acceptable |
Compared with TPS3808G33DBVR and ADM6710LAKSZ-REEL7, MAX6715UTYHD3+T provides tighter threshold accuracy (±1.5%), exact 210ms timeout matching common BIOS requirements, and native dual-supply supervision without external components - making it optimal for telecom and industrial boards demanding high-reliability power sequencing.
Availability
MAX6715UTYHD3+T is available at Aetrix Electronics and suitable for telecom line cards, industrial PLCs, server BMCs, and medical imaging subsystems requiring stable component supply, long-term lifecycle support, and guaranteed RoHS-compliant sourcing.
Supply support for MAX6715UTYHD3+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 power, sensing, and interface applications, with leadership in supervisory, PMIC, and data-converter technologies.
MAX6715UTYHD3+T belongs to the MAX6715–MAX6729 family of ultra-low-voltage SOT23 µP supervisory circuits, engineered specifically for multivoltage system integrity in space-constrained, high-reliability applications like networking gear and industrial controllers.
FAQ
What is the exact reset threshold voltage for VCC1 and VCC2 on the MAX6715UTYHD3+T?
The MAX6715UTYHD3+T has factory-trimmed reset thresholds of 4.625V (VTH1, min 4.500V, max 4.750V) for VCC1 and 3.075V (VTH2, min 3.000V, max 3.150V) for VCC2, as defined by the 'YH' suffix in the part number and confirmed in the Reset Voltage Threshold Suffix Guide. These values are production-tested across temperature and supply variations.
Does the MAX6715UTYHD3+T include a watchdog timer or power-fail input?
No, the MAX6715UTYHD3+T does not include a watchdog timer (WDI), power-fail input (PFI), or adjustable RSTIN input. Per the Selector Guide and Pin Description, MAX6715 is a dual-monitor device with only VCC1/VCC2 supervision, manual reset (MR), and push-pull RST output - features confirmed by absence of WDI, PFI, and RSTIN pins in its 6-pin SOT23-6 configuration.
What is the function of Pin 6 on the MAX6715UTYHD3+T?
Pin 6 on the MAX6715UTYHD3+T is NC (No Connect) - it is internally unconnected and must be left floating or tied to GND per Maxim's layout recommendations. This differs from other variants (e.g., MAX6719) that use Pin 6 for RSTIN; the MAX6715 pinout explicitly lists Pin 6 as unused in all configurations.
How does the MAX6715UTYHD3+T ensure valid reset output during deep brownout conditions?
The MAX6715UTYHD3+T guarantees valid reset logic state (RST low when asserted) down to VCC1 or VCC2 = 0.8V, verified across –40°C to +85°C. This is achieved via internal biasing and comparator design that maintains functionality below typical UVLO thresholds - enabling fail-safe behavior in systems where supply collapse is gradual or partial.
Can the MAX6715UTYHD3+T be used with a 1.8V VCC2 supply?
Yes, the MAX6715UTYHD3+T supports VCC2 from 0.9V to 3.3V, so a 1.8V secondary supply is fully within specification. Its VCC2 comparator operates correctly at 1.8V, and the 3.075V threshold applies only to the monitored voltage level - not the VCC2 supply itself. The device remains functional and guarantees reset validity as long as VCC2 ≥ 0.8V.
MAX6715UTYHD3+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 2
- Voltage - Threshold:
- 1.313V, 2.188V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-6
MAX6715UTYHD3+T FAQ
1.How can I place an order for MAX6715UTYHD3+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6715UTYHD3+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 MAX6715UTYHD3+T reliable?
The price and inventory of MAX6715UTYHD3+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6715UTYHD3+T is usually 5 days.
3.What payment methods are accepted for MAX6715UTYHD3+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6715UTYHD3+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6715UTYHD3+T?
MAX6715UTYHD3+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6715UTYHD3+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 MAX6715UTYHD3+T?
For technical support, including MAX6715UTYHD3+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6715UTYHD3+T requirements.
6.How does Aetrix verify that MAX6715UTYHD3+T is sourced from the original manufacturer or authorized distributors?
All MAX6715UTYHD3+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 MAX6715UTYHD3+T meets industry standards.
7.What is the process for return or replacement of MAX6715UTYHD3+T?
All MAX6715UTYHD3+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6715UTYHD3+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 MAX6715UTYHD3+T part is unused and in its original packaging.
Return procedure for MAX6715UTYHD3+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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