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Analog Devices Inc./Maxim Integrated MAX6715UTYDD3-T
- Part No.:
- MAX6715UTYDD3-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6715UTYDD3-T.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
MAX6715UTYDD3-T 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 motherboard voltage supervision.
For engineers reviewing the MAX6715UTYDD3-T datasheet, MAX6715UTYDD3-T pinout, MAX6715UTYDD3-T application, or MAX6715UTYDD3-T equivalent, key selection criteria include dual-supply threshold accuracy (±1.5% over temperature), ultra-low 14µA typical supply current at 3.6V, immunity to sub-20µs VCC transients, and compatibility with 1.8V/3.3V core-I/O rail architectures.
Technical Context
The MAX6715UTYDD3-T implements two independent voltage comparators with factory-trimmed thresholds (VTH1 = 4.625V, VTH2 = 3.075V), each feeding a shared reset timeout timer with fixed 210ms (min) delay. Its push-pull RST output is referenced to VCC1 and drives low during fault conditions without requiring external pull-up.
It integrates a 50kΩ internal MR pull-up resistor, supports TTL/CMOS-compatible manual reset assertion, and guarantees correct reset logic state even when either VCC1 or VCC2 drops to 0.8V - enabling robust brownout detection in multirail systems before full power collapse.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Reset Threshold | 4.625V (factory-trimmed, ±1.5% over -40°C to +85°C) - sets precise power-good detection for 5V or 4.8V primary rails |
| VCC2 Reset Threshold | 3.075V (factory-trimmed, ±1.5% over -40°C to +85°C) - enables reliable monitoring of 3.3V secondary supplies |
| Reset Timeout Period | 210ms (minimum) - ensures sufficient hold time for CPU initialization and peripheral stabilization after power recovery |
| Supply Current | 14µA (typical at 3.6V) - minimizes quiescent load on battery-backed or energy-constrained systems |
| Reset Output Type | Push-pull active-low RST - eliminates need for external pull-up resistor and provides defined high-state voltage (≥0.8×VCC1) |
| Operating Temperature | -40°C to +85°C - qualified for industrial and telecom equipment environments without derating |
| VCC Immunity | Valid reset assertion down to VCC1 or VCC2 = 0.8V - supports fail-safe operation during deep brownout conditions |
Pinout & Package
MAX6715UTYDD3-T is housed in a 6-pin SOT23-6 package (2.9mm × 1.6mm × 1.1mm), surface-mount, RoHS-compliant, with gull-wing leads and thermal pad not connected.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RST | Active-low push-pull reset output referenced to VCC1; asserts low on VCC1/VCC2 undervoltage, MR low, or timeout expiration |
| 2 | GND | Analog/digital ground reference for all internal comparators, timers, and output drivers |
| 3 | MR | Active-low manual reset input with 50kΩ internal pull-up to VCC1; resets system on logic-low pulse ≥1µs |
| 4 | VCC2 | Secondary supply input (0.9V–3.3V range); powers internal VCC2 comparator and sets VTH2 threshold reference |
| 5 | VCC1 | Primary supply input (1.8V–5.0V range); powers device core, sets VTH1 threshold, and references RST output |
| 6 | NC | No connect - internally unconnected; must be left floating or tied to GND per layout best practice |
Key Features
| Feature | Design Value |
|---|---|
| Dual factory-trimmed voltage monitoring | VTH1 = 4.625V / VTH2 = 3.075V with ±1.5% tolerance over full temperature range - eliminates external resistor networks and calibration |
| Guaranteed reset validity at low VCC | Functional reset assertion guaranteed with VCC1 or VCC2 ≥ 0.8V - enables early fault detection before complete power loss |
| Push-pull RST output | Drives actively high (≥0.8×VCC1) and low (≤0.4V at 3.2mA sink) without external components - simplifies PCB routing and improves noise margin |
| Manual reset with integrated pull-up | 50kΩ internal MR pull-up to VCC1 - supports direct switch-to-GND connection without external biasing |
| Ultra-low quiescent current | 14µA typical at 3.6V - extends battery life in portable equipment and reduces self-heating in dense layouts |
Applications
| Telecom Power Sequencing | Server Motherboard Supervision |
|---|---|
Use Scenario: Sequencing 48V DC-DC converter outputs (5V, 3.3V, 1.8V) in access node hardware with strict ramp-time requirements. IC Role / Device Role / Timing Role: Dual-voltage supervisor enforcing power-good timing between primary (5V) and secondary (3.3V) rails before releasing CPU reset. Use Value: Prevents CPU lockup during asymmetric power-up by holding RST until both VCC1 ≥ 4.625V and VCC2 ≥ 3.075V for ≥210ms. |
Use Scenario: Monitoring redundant 12V/5V/3.3V power supplies on enterprise server motherboards with hot-swap capability. IC Role / Device Role / Timing Role: Fault detector asserting RST within 20µs of VCC1 or VCC2 droop below threshold, sustaining reset for 210ms after recovery. Use Value: Ensures deterministic reboot on partial supply failure without software intervention or external watchdog dependency. |
| Industrial PLC I/O Module | Network Switch ASIC Power Management |
Use Scenario: Protecting programmable logic controller modules operating in harsh environments with wide ambient temperature swings (-40°C to +85°C). IC Role / Device Role / Timing Role: Brownout detector maintaining valid reset state down to VCC1 = 0.8V to prevent metastability in FPGA configuration logic. Use Value: Eliminates need for external voltage translators or level shifters while ensuring safe state retention during gradual voltage decay. |
Use Scenario: Enabling fast power-cycle recovery in 10G Ethernet switches where ASIC core (1.2V) and I/O (2.5V) rails require independent supervision. IC Role / Device Role / Timing Role: Dual-threshold monitor verifying both VCC1 (2.5V rail) and VCC2 (1.2V rail) meet specification before releasing ASIC reset. Use Value: Reduces boot time uncertainty by replacing discrete RC-based reset circuits with deterministic 210ms timeout and ±1.5% threshold accuracy. |
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), open-drain RST, 200ms timeout, higher 25µA ICC | Lacks VCC2 monitoring capability; requires external resistor divider for dual-rail use | Select when only one rail needs supervision and board space permits pull-up resistor |
| ADM6710LAKSZ-REEL7 | Dual-supply (V1=3.3V, V2=1.8V), open-drain RST, 200ms timeout, ±2.5% threshold accuracy | Lower threshold precision and no internal MR pull-up - needs external 100kΩ pull-up | Choose for cost-sensitive industrial designs where ±2.5% tolerance is acceptable and layout allows external biasing |
Compared with TPS3808G33DBVR and ADM6710LAKSZ-REEL7, MAX6715UTYDD3-T uniquely delivers factory-trimmed dual thresholds (4.625V/3.075V), push-pull RST eliminating external components, and superior ±1.5% accuracy - making it optimal for telecom and server applications demanding tight voltage margins and minimal BOM count.
Availability
MAX6715UTYDD3-T is available at Aetrix Electronics and suitable for telecom infrastructure, server motherboard design, and industrial PLC development requiring stable component supply, long-term lifecycle support, and guaranteed RoHS-compliant sourcing.
Supply support for MAX6715UTYDD3-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 multivoltage microprocessor systems requiring compact, accurate, and low-power supervision of primary and secondary supply rails in space-constrained applications.
FAQ
What is the exact reset threshold voltage for VCC1 and VCC2 on the MAX6715UTYDD3-T?
The MAX6715UTYDD3-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 temperature range. These values are encoded in the "YD" suffix per Maxim's Reset Voltage Threshold Suffix Guide and are verified in the Electrical Characteristics table of the official datasheet. The MAX6715UTYDD3-T does not support adjustable thresholds - only factory-set dual-voltage monitoring.
Does the MAX6715UTYDD3-T support manual reset functionality, and how is it implemented?
Yes, the MAX6715UTYDD3-T includes an active-low manual reset (MR) input on Pin 3, featuring an internal 50kΩ pull-up resistor to VCC1. A logic-low pulse ≥1µs on MR forces RST low for the full 210ms timeout period, regardless of VCC status. This allows hardware-initiated resets via momentary switch to GND without external components. The MAX6715UTYDD3-T datasheet specifies MR glitch rejection of 100ns and compatibility with TTL/CMOS logic levels.
What type of reset output does the MAX6715UTYDD3-T provide, and what are its drive capabilities?
The MAX6715UTYDD3-T provides a push-pull active-low RST output on Pin 1, referenced to VCC1. It actively drives high (≥0.8×VCC1 at 200µA source) and low (≤0.4V at 3.2mA sink when VCC1 ≥ 4.5V). This eliminates the need for an external pull-up resistor and ensures defined logic states under all operating conditions - unlike open-drain alternatives that require external biasing and suffer from slower rise times.
Can the MAX6715UTYDD3-T monitor a third voltage rail, such as a 1.2V core supply?
No, the MAX6715UTYDD3-T is a dual-voltage supervisor and does not support a third monitored rail. It monitors only VCC1 and VCC2. For triple-voltage supervision (e.g., 4.625V/3.075V/1.2V), consider the MAX6719UTYDD3-T or MAX6723UTYDD3-T, which include the RSTIN pin for externally adjustable threshold monitoring down to 0.626V. The MAX6715UTYDD3-T pinout lacks RSTIN, WDI, PFI, or PFO - confirming its dedicated dual-rail function.
What is the minimum supply voltage at which the MAX6715UTYDD3-T guarantees correct reset output behavior?
The MAX6715UTYDD3-T guarantees valid reset output logic state as long as either VCC1 or VCC2 remains ≥ 0.8V - explicitly stated in the Absolute Maximum Ratings and Detailed Description sections of the datasheet. This enables reliable brownout detection well before complete power collapse. Below 0.8V, reset behavior is not specified; the device enters undefined state. No external components are needed to achieve this guarantee - it is inherent to the MAX6715UTYDD3-T's BiCMOS design.
MAX6715UTYDD3-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, 2.188V
- 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
MAX6715UTYDD3-T FAQ
1.How can I place an order for MAX6715UTYDD3-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6715UTYDD3-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 MAX6715UTYDD3-T reliable?
The price and inventory of MAX6715UTYDD3-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6715UTYDD3-T is usually 5 days.
3.What payment methods are accepted for MAX6715UTYDD3-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6715UTYDD3-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6715UTYDD3-T?
MAX6715UTYDD3-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6715UTYDD3-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 MAX6715UTYDD3-T?
For technical support, including MAX6715UTYDD3-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6715UTYDD3-T requirements.
6.How does Aetrix verify that MAX6715UTYDD3-T is sourced from the original manufacturer or authorized distributors?
All MAX6715UTYDD3-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 MAX6715UTYDD3-T meets industry standards.
7.What is the process for return or replacement of MAX6715UTYDD3-T?
All MAX6715UTYDD3-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6715UTYDD3-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 MAX6715UTYDD3-T part is unused and in its original packaging.
Return procedure for MAX6715UTYDD3-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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