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Analog Devices Inc./Maxim Integrated MAX6715UTVDD3-T
- Part No.:
- MAX6715UTVDD3-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6715UTVDD3-T.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:10,000
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Product details
Overview
MAX6715UTVDD3-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 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 brownout or startup in multivoltage embedded systems.
For engineers reviewing the MAX6715UTVDD3-T datasheet, MAX6715UTVDD3-T pinout, MAX6715UTVDD3-T application, or MAX6715UTVDD3-T equivalent, key selection criteria include dual-supply threshold accuracy (±1.5% over temperature), guaranteed reset validity down to VCC1/VCC2 = 0.8V, low 14µA typical supply current at 3.6V, and compatibility with manual reset and watchdog-free designs.
Technical Context
The MAX6715UTVDD3-T integrates two independent voltage comparators with precision internal references (VTH1 = 4.625V, VTH2 = 3.075V), a reset timeout timer (210ms min), and push-pull RST output referenced to VCC1. It asserts reset when either supply falls below its threshold and holds reset for the full timeout after recovery.
No watchdog, power-fail, or adjustable RSTIN inputs are included - this variant is optimized for simple dual-rail supervision without auxiliary monitoring features. Its BiCMOS process ensures immunity to short VCC transients (<20µs at 100mV overdrive) and stable operation across -40°C to +85°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Threshold | 4.625V (factory-trimmed, ±1.5% over temp); monitors primary rail like 5V or 4.8V logic supplies |
| VCC2 Threshold | 3.075V (factory-trimmed, ±1.5% over temp); monitors secondary rail like 3.3V I/O or memory supplies |
| Reset Timeout | 210ms minimum; ensures µP completes boot sequence before release |
| Supply Current | 14µA typical at 3.6V; enables battery-backed or ultra-low-power standby modes |
| Operating Temp | -40°C to +85°C; qualified for industrial and telecom equipment environments |
| Reset Output Type | Push-pull active-low RST; drives directly into µP reset pin without external pullup |
| Valid Reset Down To | VCC1 or VCC2 ≥ 0.8V; guarantees correct logic state during deep brownout |
Pinout & Package
MAX6715UTVDD3-T is housed in a 6-pin SOT23-6 package (2.9mm × 1.6mm × 1.1mm), RoHS-compliant and available in lead-free (+T) version. Pin 1 is marked with dot; device orientation follows JEDEC MO-178AB standard.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RST | Active-low push-pull reset output; sinks 3.2mA at VCC1 ≥ 4.5V; no external pullup required |
| 2 | GND | Analog/digital ground reference; must be connected to system ground plane |
| 3 | MR | Active-low manual reset input; internal 50kΩ pullup to VCC1; 1µs minimum pulse width |
| 4 | VCC2 | Secondary supply input (0.9V–3.3V); powers internal comparator for VCC2 monitoring |
| 5 | VCC1 | Primary supply input (1.8V–5.0V); powers core logic and RST output stage |
| 6 | NC | No connect; internally unconnected; must be left floating or tied to GND per layout best practice |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitoring | Simultaneous VCC1 (4.625V) and VCC2 (3.075V) supervision eliminates need for two discrete supervisors |
| Guaranteed reset validity down to 0.8V | Ensures deterministic reset assertion even during severe brownout - critical for flash write integrity |
| Low 14µA supply current | Reduces standby power in always-on systems; supports >10-year coin-cell battery life in backup mode |
| Push-pull RST output | Drives µP reset pin directly; avoids timing uncertainty and board space penalty of external pullup resistors |
| Immunity to short VCC transients | Rejects <20µs glitches at 100mV overdrive - prevents spurious resets in noisy power environments |
Applications
| Industrial PLC Controller | Network Router Power Management |
|---|---|
|
Use Scenario: Dual-rail FPGA+ARM SoC system with 4.8V analog front-end and 3.3V digital core. IC Role / Device Role / Timing Role: Supervises both rails independently; asserts synchronized reset if either drops below threshold during cold start or line sag. Use Value: Prevents partial initialization and metastability by holding reset until both supplies stabilize for ≥210ms. |
Use Scenario: Carrier-grade Ethernet switch with redundant 5V/3.3V DC-DC outputs feeding ASIC and PHY layers. IC Role / Device Role / Timing Role: Monitors primary 4.625V rail (ASIC core) and secondary 3.075V rail (PHY interface); triggers hardware reset on undervoltage. Use Value: Eliminates software-based polling overhead while guaranteeing sub-250ms failover response time. |
| Medical Diagnostic Handheld | Smart Energy Meter MCU |
|
Use Scenario: Battery-powered ultrasound probe with Li-ion (4.2V max) and LDO-regulated 3.3V MCU supply. IC Role / Device Role / Timing Role: Detects end-of-battery discharge (VCC1 < 4.625V) and LDO dropout (VCC2 < 3.075V); asserts clean reset before data corruption. Use Value: Enables safe shutdown sequence with 210ms window to save calibration data to nonvolatile memory. |
Use Scenario: ANSI C12.22-compliant meter with isolated 5V RS-485 interface and 3.3V metrology SoC. IC Role / Device Role / Timing Role: Provides hardware-level reset coordination between communication and measurement subsystems during AC mains interruption. Use Value: Meets IEC 62056-21 reset timing requirements with guaranteed 0.8V reset validity during brownout recovery. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-voltage supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6316US46D3-T | Single-supply supervisor (4.63V only); no VCC2 monitoring; 200ms timeout; SOT23-5 package | Requires separate IC for secondary rail supervision; increases BOM count and PCB area | Select when only primary rail monitoring is needed and board space is constrained |
| TPS3808G33DBVR | Single-supply (3.3V), open-drain RST, 200ms timeout, 2.9µA quiescent current; SOT23-5 | Lacks dual-rail capability; requires external pullup; lower supply current but no VCC2 path | Prefer for ultra-low-power single-rail systems where secondary supply is inherently stable |
Compared with MAX6715UTVDD3-T, MAX6316US46D3-T reduces integration by omitting VCC2 monitoring, while TPS3808G33DBVR trades dual-rail functionality for lower quiescent current and smaller footprint - neither offers direct functional replacement without design revision.
Availability
MAX6715UTVDD3-T is available at Aetrix Electronics and suitable for industrial PLC controllers, network router power management, medical diagnostic handhelds, smart energy meters, and telecom base station modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6715UTVDD3-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, communications, and computing markets.
The MAX6715–MAX6729 family was designed specifically for compact, multivoltage embedded systems needing reliable, low-power, factory-trimmed supervision without complex configuration - targeting space-constrained applications where dual-rail coordination is essential.
FAQ
What is the exact reset threshold voltage for VCC1 and VCC2 on the MAX6715UTVDD3-T?
The MAX6715UTVDD3-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 fixed by the "TV" and "D" suffixes in the part number and do not require external resistor programming. The MAX6715UTVDD3-T guarantees monotonic behavior and hysteresis of 0.5% of VTH to prevent chatter near trip points.
Does the MAX6715UTVDD3-T include a watchdog timer or power-fail detection feature?
No, the MAX6715UTVDD3-T does not include a watchdog timer (WDI), power-fail input (PFI), or adjustable RSTIN input. It is a dedicated dual-supply supervisor with only VCC1, VCC2, MR, RST, and GND connections. These omissions are confirmed by the Selector Guide and Pin Configuration tables - the MAX6715UTVDD3-T belongs to the base MAX6715 series, which excludes auxiliary monitoring functions.
What is the function of Pin 6 (NC) on the MAX6715UTVDD3-T, and how should it be handled in layout?
Pin 6 on the MAX6715UTVDD3-T is a no-connect (NC) terminal - it is internally unconnected and serves no electrical function. Per Maxim's recommended layout practice, Pin 6 should be left floating or tied to GND to improve thermal conduction and mechanical stability; it must never be connected to VCC or signal nets. This NC pin enables pin compatibility across the MAX6715–MAX6729 family while maintaining consistent SOT23-6 footprint.
Can the MAX6715UTVDD3-T operate with VCC1 = 2.5V and still assert a valid reset?
Yes, the MAX6715UTVDD3-T guarantees correct reset output logic state as long as either VCC1 or VCC2 remains ≥ 0.8V - this includes operation at VCC1 = 2.5V. However, the 4.625V VCC1 threshold cannot be met at 2.5V, so VCC1 monitoring is disabled in that condition; the device will still supervise VCC2 (if ≥ 0.9V) and respond to MR assertion. The MAX6715UTVDD3-T's internal biasing remains functional down to 0.8V, ensuring deterministic reset behavior during brownout.
What is the maximum sink current capability of the RST output on the MAX6715UTVDD3-T?
The RST output on the MAX6715UTVDD3-T is a push-pull driver referenced to VCC1 and can sink up to 3.2mA when VCC1 ≥ 4.5V (VOL ≤ 0.4V). At lower VCC1 voltages, sink capability scales: 100µA at VCC1 ≥ 1.2V (VOL ≤ 0.3V), 50µA at VCC1 ≥ 1.0V, and 1µA at VCC1 ≥ 0.8V. This graded drive strength ensures compatibility with diverse µP reset input requirements without external buffering.
MAX6715UTVDD3-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 2
- Voltage - Threshold:
- 0.788V, 1.575V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-6
MAX6715UTVDD3-T FAQ
1.How can I place an order for MAX6715UTVDD3-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6715UTVDD3-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 MAX6715UTVDD3-T reliable?
The price and inventory of MAX6715UTVDD3-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6715UTVDD3-T is usually 5 days.
3.What payment methods are accepted for MAX6715UTVDD3-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6715UTVDD3-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6715UTVDD3-T?
MAX6715UTVDD3-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6715UTVDD3-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 MAX6715UTVDD3-T?
For technical support, including MAX6715UTVDD3-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6715UTVDD3-T requirements.
6.How does Aetrix verify that MAX6715UTVDD3-T is sourced from the original manufacturer or authorized distributors?
All MAX6715UTVDD3-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 MAX6715UTVDD3-T meets industry standards.
7.What is the process for return or replacement of MAX6715UTVDD3-T?
All MAX6715UTVDD3-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6715UTVDD3-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 MAX6715UTVDD3-T part is unused and in its original packaging.
Return procedure for MAX6715UTVDD3-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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