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Analog Devices Inc./Maxim Integrated MAX6715UTTGD3+
- Part No.:
- MAX6715UTTGD3+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6715UTTGD3+.pdf
- Description:
- POWER SUPPLY SUPPORT CIRCUIT, AD
- Quantity:
- Payment:
- Shipping:
Inventory:1,356
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Product details
Overview
MAX6715UTTGD3+ from Maxim Integrated is a dual-voltage microprocessor supervisory circuit in SOT23-6 package, monitoring VCC1 (4.625V threshold) and VCC2 (3.075V threshold) with 210ms minimum reset timeout, push-pull active-low RST output, manual reset input, and guaranteed reset validity down to VCC1 or VCC2 = 0.8V - used in telecom power sequencing and server board management.
For engineers reviewing the MAX6715UTTGD3+ datasheet, MAX6715UTTGD3+ pinout, MAX6715UTTGD3+ application, or MAX6715UTTGD3+ equivalent, key selection factors include dual-supply threshold accuracy (±1.5% over temp), ultra-low 14µA supply current at 3.6V, immunity to sub-20µs VCC transients, and compatibility with 1.8V–5.0V primary/0.9V–3.3V secondary rail systems.
Technical Context
The MAX6715UTTGD3+ integrates two independent voltage comparators with factory-trimmed thresholds (VTH1 = 4.625V, VTH2 = 3.075V), a 210ms reset timeout timer, 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 RSTIN inputs are included - confirmed by Selector Guide and Pin Configuration tables showing MAX6715 as 2-monitor, MR-enabled, push-pull RST-only variant in 6-pin SOT23. Reset logic is active-low with VOL ≤ 0.4V at 3.2mA sink and VOH ≥ 0.8×VCC1 at 800µA source.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Threshold | 4.625V (factory-trimmed, ±1.5% over -40°C to +85°C) - sets precise brownout detection for 5V or 4.8V system rails |
| VCC2 Threshold | 3.075V (factory-trimmed, ±1.5% over -40°C to +85°C) - enables reliable monitoring of 3.3V I/O or auxiliary supplies |
| Reset Timeout | 210ms (minimum) - ensures sufficient hold time for CPU initialization and peripheral stabilization |
| Supply Current | 14µA typical at 3.6V - minimizes quiescent load on battery-backed or low-power standby rails |
| Operating Temp | -40°C to +85°C - qualified for industrial and telecom equipment environments without derating |
| Reset Output Type | Push-pull active-low RST - eliminates need for external pullup; drives directly into µP reset pin with VOH ≥ 0.8×VCC1 |
| VCC Immunity | Valid reset assertion down to VCC1 or VCC2 = 0.8V - supports graceful shutdown during deep brownout conditions |
Pinout & Package
MAX6715UTTGD3+ uses a 6-pin SOT23-6 package (2.9mm × 1.6mm × 1.1mm), surface-mount, RoHS-compliant lead-free construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RST | Active-low push-pull reset output referenced to VCC1; sinks 3.2mA / sources 800µA; asserts when VCC1 < 4.625V or VCC2 < 3.075V |
| 2 | GND | Analog/digital ground reference for all internal comparators and timing circuits |
| 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 | NC | No connect - unused pin per MAX6715-specific pinout; must be left floating or grounded per layout guidelines |
| 6 | VCC1 | Primary supply input (1.8V–5.0V range); powers device core, sets RST output reference, and feeds VCC1 comparator |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitoring | Simultaneous supervision of VCC1 (4.625V) and VCC2 (3.075V) with separate comparators and hysteresis - prevents false resets from correlated supply noise |
| Guaranteed reset validity at low VCC | Outputs remain functional and logically valid even when VCC1 or VCC2 drops to 0.8V - enables controlled shutdown before complete power loss |
| Push-pull RST output | Eliminates external pullup resistor; drives µP reset pin directly with rail-to-rail swing (VOH ≥ 0.8×VCC1, VOL ≤ 0.4V) - reduces BOM count and PCB area |
| Immunity to short VCC transients | Rejects negative-going glitches <20µs duration (at 100mV overdrive) - avoids spurious resets during switching noise or load transients |
| Ultra-low quiescent current | 14µA typical at 3.6V - extends battery life in portable equipment and lowers thermal load in dense server boards |
Applications
| Telecom Line Cards | Industrial PLC Controllers |
|---|---|
Use Scenario: Monitoring 48V DC-DC converted 5V and 3.3V rails in carrier-grade line cards subject to lightning-induced surges and hot-swap events. IC Role / Device Role / Timing Role: Dual-supply supervisor asserting synchronized reset across FPGA, DSP, and PHY ICs during undervoltage events. Use Value: Prevents partial configuration or metastable states in programmable logic by enforcing strict power-rail sequencing and 210ms reset hold time. |
Use Scenario: Ensuring deterministic startup and fault recovery in DIN-rail mounted PLCs operating in electrically noisy factory environments. IC Role / Device Role / Timing Role: Primary reset generator tied to 24V-derived 5V logic rail and 3.3V I/O rail, with manual reset for field service. Use Value: Guarantees µP reset remains asserted until both rails stabilize above 4.625V/3.075V - eliminating boot failures caused by slow-rising auxiliary supplies. |
| Server Baseboard Management | Medical Diagnostic Imaging Systems |
Use Scenario: Supervising redundant 12V-to-5V and 12V-to-3.3V PMBus-regulated rails on server baseboards with BMC co-location. IC Role / Device Role / Timing Role: Fail-safe reset source for BMC and host processor, interfacing directly via push-pull RST to avoid signal contention. Use Value: 14µA supply current minimizes impact on always-on BMC power budget; 0.8V reset validity supports graceful firmware save during AC loss. |
Use Scenario: Power integrity assurance for FPGA-based image reconstruction engines in MRI/CT subsystems requiring zero-reset-failure MTBF. IC Role / Device Role / Timing Role: Dual-rail monitor for 5V analog front-end and 3.3V digital processing supply, with MR input for emergency diagnostic reset. Use Value: Factory-trimmed thresholds (±1.5%) ensure consistent trip points across production lots - critical for FDA-cleared device reliability validation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-voltage supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6716UTTGD3+ | Same pinout, same thresholds and timeout, but open-drain RST output instead of push-pull | Requires external pullup resistor; suitable where level-shifting or wired-OR reset bus is needed | Select MAX6716UTTGD3+ only if system requires open-drain reset for bus sharing or mixed-voltage interface |
| TPS3808G33DBVR | Single-supply monitor (3.3V threshold only), 200ms timeout, 2.5µA IQ, SOT23-6 - no VCC2 input or MR | Lacks dual-rail capability and manual reset; intended for simpler 3.3V-only systems | Choose TPS3808G33DBVR only for cost-sensitive, single-rail designs where VCC2 monitoring is unnecessary |
Compared with MAX6716UTTGD3+, the MAX6715UTTGD3+ eliminates external pullup components and simplifies layout; versus TPS3808G33DBVR, it provides essential dual-rail supervision and field-service reset capability required in complex embedded platforms.
Availability
MAX6715UTTGD3+ is available at Aetrix Electronics and suitable for telecom line cards, industrial PLC controllers, and server baseboard management requiring stable component supply, long-lifecycle support, and guaranteed factory-trimmed voltage thresholds.
Supply support for MAX6715UTTGD3+ 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 emphasis on high-reliability industrial and communications markets.
The MAX6715–MAX6729 family delivers compact, ultra-low-power supervisory solutions for multivoltage systems where space, quiescent current, and reset accuracy are critical - targeting telecom infrastructure, servers, and ruggedized embedded control.
FAQ
What is the exact reset threshold voltage for VCC1 and VCC2 on the MAX6715UTTGD3+?
The MAX6715UTTGD3+ has factory-trimmed VCC1 reset threshold of 4.625V (±1.5% over temperature) and VCC2 threshold of 3.075V (±1.5%). These values are fixed by the "TT" suffix per Maxim's Reset Voltage Threshold Suffix Guide and are not adjustable. The MAX6715UTTGD3+ does not include RSTIN or PFI inputs, so no third-voltage monitoring is supported.
Does the MAX6715UTTGD3+ include a watchdog timer function?
No, the MAX6715UTTGD3+ does not include a watchdog timer. Per Maxim's Selector Guide and functional block diagram, only MAX6721–MAX6729 variants support WDI input. The MAX6715UTTGD3+ is a dual-supply supervisor with manual reset (MR) and push-pull RST output only - confirmed by pinout (no WDI pin) and ordering table exclusions.
What is the reset timeout period for the MAX6715UTTGD3+ and how is it set?
The MAX6715UTTGD3+ has a minimum reset timeout period of 210ms, set by the "D3" suffix in the part number per Maxim's Reset Timeout Period Suffix Guide. This is a factory-programmed, non-adjustable timer that begins counting when reset is asserted and holds RST low for the full duration after all monitored supplies exceed their thresholds or MR returns high.
Can the MAX6715UTTGD3+ monitor a 1.2V supply as VCC2?
Yes, the MAX6715UTTGD3+ supports VCC2 input voltages from 0.9V to 3.3V, so a 1.2V supply is within specification. However, the VCC2 threshold is fixed at 3.075V - meaning it will assert reset if the 1.2V rail drops below 3.075V, which is impossible. Therefore, VCC2 must be ≥3.075V for meaningful supervision; use VCC1 for 1.2V monitoring only if reconfigured as primary supply.
Is the MAX6715UTTGD3+ pin-compatible with other devices in the MAX6715–MAX6729 family?
The MAX6715UTTGD3+ shares the 6-pin SOT23-6 package and pinout with MAX6716UTTGD3+, MAX6719UTTGD3+, and MAX6720UTTGD3+, but functional pin assignments differ. For example, pin 5 is NC on MAX6715 but RSTIN on MAX6719. Direct replacement requires verification of feature match - MAX6715UTTGD3+ is not functionally interchangeable with variants offering watchdog, power-fail, or triple-voltage monitoring.
MAX6715UTTGD3+ 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:
- Power Supply Monitor
- Number of Voltages Monitored:
- 2
- Voltage - Threshold:
- 1.11V, 3.075V
- 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-23-6
MAX6715UTTGD3+ FAQ
1.How can I place an order for MAX6715UTTGD3+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6715UTTGD3+ 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 MAX6715UTTGD3+ reliable?
The price and inventory of MAX6715UTTGD3+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6715UTTGD3+ is usually 5 days.
3.What payment methods are accepted for MAX6715UTTGD3+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6715UTTGD3+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6715UTTGD3+?
MAX6715UTTGD3+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6715UTTGD3+ 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 MAX6715UTTGD3+?
For technical support, including MAX6715UTTGD3+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6715UTTGD3+ requirements.
6.How does Aetrix verify that MAX6715UTTGD3+ is sourced from the original manufacturer or authorized distributors?
All MAX6715UTTGD3+ 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 MAX6715UTTGD3+ meets industry standards.
7.What is the process for return or replacement of MAX6715UTTGD3+?
All MAX6715UTTGD3+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6715UTTGD3+, 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 MAX6715UTTGD3+ part is unused and in its original packaging.
Return procedure for MAX6715UTTGD3+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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