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Analog Devices Inc./Maxim Integrated MAX6715UTZGD3+
- Part No.:
- MAX6715UTZGD3+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6715UTZGD3+.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MAX6715UTZGD3+ from Maxim Integrated is a dual-voltage microprocessor supervisory circuit in SOT23-6 package, monitoring VCC1 (1.575V threshold) and VCC2 (0.788V threshold) with 210ms 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 embedded system brownout protection.
For engineers reviewing the MAX6715UTZGD3+ datasheet, MAX6715UTZGD3+ pinout, MAX6715UTZGD3+ application, or MAX6715UTZGD3+ equivalent, key selection criteria include dual-supply threshold accuracy (±2.5% over temp), ultra-low 14µA supply current at 3.6V, immunity to sub-20µs VCC transients, and compatibility with 1.8V/0.9V core-I/O rail architectures.
Technical Context
The MAX6715UTZGD3+ integrates two independent voltage comparators with factory-trimmed thresholds (VTH1 = 1.575V, VTH2 = 0.788V), a 210ms monostable 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.
It features an internal 50kΩ pullup on MR, supports manual reset pulse widths ≥1µs, guarantees valid reset logic state at VCC1/VCC2 ≥ 0.8V, and exhibits 20ppm/°C reset threshold tempco - enabling reliable operation across -40°C to +85°C industrial temperature range without external calibration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Threshold | 1.575V (typ), ±2.5% over -40°C to +85°C - sets precise brownout detection for 1.8V I/O rails |
| VCC2 Threshold | 0.788V (typ), ±2.5% over -40°C to +85°C - enables robust monitoring of 0.9V core supplies |
| Reset Timeout | 210ms (typ), min 140ms - ensures sufficient hold time for processor initialization and memory stabilization |
| Supply Current | 14µA (typ) at 3.6V - minimizes quiescent load in battery-backed or always-on systems |
| Reset Output Type | Push-pull active-low, VOH ≥ 0.8×VCC1, VOL ≤ 0.4V at 3.2mA - drives CMOS inputs directly without pullup resistor |
| MR Input Logic | VIL ≤ 0.3×VCC1, VIH ≥ 0.7×VCC1, 1µs minimum pulse - compatible with standard digital logic and momentary switches |
| Operating Temp | -40°C to +85°C - qualified for industrial and telecom equipment environments |
Pinout & Package
MAX6715UTZGD3+ uses a 6-pin SOT23-6 package with gull-wing leads, 1.27mm pitch, and 2.9mm × 1.6mm footprint - optimized for high-density PCB layouts in space-constrained applications like portable networking modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RST | Active-low push-pull reset output referenced to VCC1; asserts low on fault and holds for 210ms timeout |
| 2 | GND | System ground reference for all internal comparators, timers, and output drivers |
| 3 | MR | Active-low manual reset input with internal 50kΩ pullup to VCC1; initiates reset on logic-low pulse ≥1µs |
| 4 | VCC2 | Secondary supply input (0.9V–3.3V range); powers internal VCC2 comparator and sets VTH2 = 0.788V |
| 5 | VCC1 | Primary supply input (1.8V–5.0V range); powers device core and sets VTH1 = 1.575V |
| 6 | NC | No-connect pin - left unconnected per datasheet; not internally bonded |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitoring | Simultaneous supervision of 1.8V I/O (VCC1) and 0.9V core (VCC2) rails with separate thresholds and hysteresis |
| Guaranteed reset validity at low VCC | Outputs remain functional and logic-valid even when VCC1 or VCC2 drops to 0.8V - critical for graceful brownout shutdown |
| Immunity to short VCC transients | Rejects negative-going glitches <20µs wide (at 100mV overdrive), preventing spurious resets during switching noise |
| Precision factory-trimmed thresholds | VTH1 = 1.575V and VTH2 = 0.788V trimmed to ±2.5% over full temperature range - eliminates external resistor networks |
| Low-power push-pull RST output | Drives CMOS loads directly (no external pullup needed) while consuming only 14µA typical supply current |
Applications
| Telecom Power Sequencing | Industrial PLC I/O Modules |
|---|---|
|
Use Scenario: Monitoring dual-rail DC/DC outputs (1.8V I/O, 0.9V core) in 4G/LTE baseband processors during cold-start and hot-swap events. IC Role / Device Role / Timing Role: Dual-supply supervisor asserting synchronized reset until both rails stabilize above 1.575V and 0.788V, then holding 210ms for FPGA configuration lock. Use Value: Prevents metastability in SERDES interfaces by ensuring strict power-rail ordering and timing margin before clock enable. |
Use Scenario: Ensuring deterministic startup of ARM Cortex-M7-based PLC controllers powering isolated analog I/O and CAN transceivers. IC Role / Device Role / Timing Role: Supervising 3.3V system rail (VCC1) and 1.2V MCU core rail (VCC2) with manual reset override via front-panel switch (MR). Use Value: Eliminates need for discrete RC reset circuits, reducing BOM count and improving long-term threshold stability over temperature. |
| Portable Network Router | Battery-Backed Data Logger |
|
Use Scenario: Brownout protection for dual-battery-powered Wi-Fi 6 routers using buck-boost converters delivering 1.8V and 0.9V to SoC subsystems. IC Role / Device Role / Timing Role: Detecting undervoltage on either rail and asserting push-pull RST to halt CPU execution before data corruption occurs. Use Value: 14µA quiescent current extends backup runtime; 0.8V reset validity allows detection of deep discharge before cutoff. |
Use Scenario: Reliable reset generation during lithium-thionyl chloride battery voltage sag (<2.5V) in remote environmental sensors. IC Role / Device Role / Timing Role: Monitoring main 3.3V supply (VCC1) and backup 1.8V SRAM rail (VCC2) to trigger controlled shutdown and EEPROM save sequence. Use Value: Factory-trimmed thresholds ensure consistent trip points across production lots without calibration, critical for field-deployed units. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-voltage supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS3808G18DBVR | Single-supply monitor (1.8V only), 200ms timeout, open-drain RST, 1.6µA IQ | Lacks VCC2 monitoring; requires external divider for secondary rail; better for ultra-low-IQ single-rail apps | Select when only 1.8V rail supervision is needed and board space permits external resistive divider |
| ADM6715WAKSZ-RL | Dual-supply (1.8V/1.2V), 200ms timeout, push-pull RST, -40°C to +125°C rating | Higher temp grade and different threshold set (1.2V VCC2 vs. 0.788V); wider VCC2 range (0.9V–3.3V) | Prefer for automotive under-hood or extended-temp industrial use where 125°C operation is required |
Compared with TPS3808G18DBVR and ADM6715WAKSZ-RL, MAX6715UTZGD3+ uniquely combines factory-trimmed 1.575V/0.788V thresholds, 210ms timeout, and guaranteed 0.8V reset validity in a 6-pin SOT23 - making it optimal for cost-sensitive telecom and portable dual-rail designs requiring no external components.
Availability
MAX6715UTZGD3+ is available at Aetrix Electronics and suitable for telecom power sequencing, industrial PLC I/O modules, and portable network router designs requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.
Supply support for MAX6715UTZGD3+ 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 precision analog, mixed-signal, and power management ICs for industrial, communications, and computing markets.
The MAX6715–MAX6729 family was designed specifically for multivoltage embedded systems requiring compact, low-power, factory-calibrated supervision of primary and secondary supply rails - targeting space-constrained, battery-aware, and thermally demanding applications.
FAQ
What is the exact reset threshold voltage for VCC1 on MAX6715UTZGD3+?
The MAX6715UTZGD3+ has a factory-trimmed VCC1 reset threshold of 1.575V (typical), with guaranteed limits of 1.530V (min) and 1.620V (max) over -40°C to +85°C. This value is fixed by the "ZG" suffix per Maxim's Reset Voltage Threshold Suffix Guide and does not require external resistor programming.
Does MAX6715UTZGD3+ support monitoring a third voltage rail?
No, MAX6715UTZGD3+ is a dual-voltage supervisor only - it monitors VCC1 and VCC2 exclusively. The "UT" prefix and "ZG" threshold suffix confirm it belongs to the MAX6715/MAX6716 series, which lacks RSTIN or PFI pins. For triple-voltage monitoring, consider MAX6719UTZGD3+ or MAX6723UTZGD3+.
What is the function of Pin 6 on MAX6715UTZGD3+?
Pin 6 on MAX6715UTZGD3+ is a no-connect (NC) terminal - it is not bonded internally and must be left unconnected on the PCB. This is confirmed in the official pin description table, where Pin 6 is omitted for MAX6715/MAX6716 variants and designated NC in package drawings.
Can MAX6715UTZGD3+ operate with VCC1 = 1.8V and VCC2 = 0.9V simultaneously?
Yes, MAX6715UTZGD3+ is explicitly rated for VCC1 = 1.8V to 5.0V and VCC2 = 0.9V to 3.3V. Its 1.575V VCC1 threshold and 0.788V VCC2 threshold are optimized for this exact combination - ensuring reliable detection of 1.8V rail droop to ~1.58V and 0.9V core droop to ~0.79V.
Is the reset timeout period of MAX6715UTZGD3+ adjustable?
No, the reset timeout period is fixed at 210ms (typical), determined by the "D3" suffix in MAX6715UTZGD3+. This corresponds to the 210ms option in Maxim's Reset Timeout Period Suffix Guide and is implemented with internal capacitor-based timing - no external components or registers can modify it.
MAX6715UTZGD3+ 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:
- 1.11V, 2.313V
- 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-6
MAX6715UTZGD3+ FAQ
1.How can I place an order for MAX6715UTZGD3+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6715UTZGD3+ 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 MAX6715UTZGD3+ reliable?
The price and inventory of MAX6715UTZGD3+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6715UTZGD3+ is usually 5 days.
3.What payment methods are accepted for MAX6715UTZGD3+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6715UTZGD3+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6715UTZGD3+?
MAX6715UTZGD3+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6715UTZGD3+ 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 MAX6715UTZGD3+?
For technical support, including MAX6715UTZGD3+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6715UTZGD3+ requirements.
6.How does Aetrix verify that MAX6715UTZGD3+ is sourced from the original manufacturer or authorized distributors?
All MAX6715UTZGD3+ 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 MAX6715UTZGD3+ meets industry standards.
7.What is the process for return or replacement of MAX6715UTZGD3+?
All MAX6715UTZGD3+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6715UTZGD3+, 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 MAX6715UTZGD3+ part is unused and in its original packaging.
Return procedure for MAX6715UTZGD3+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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