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Analog Devices Inc./Maxim Integrated MAX6715UTTGD3-T
- Part No.:
- MAX6715UTTGD3-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6715UTTGD3-T.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:740
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Product details
Overview
MAX6715UTTGD3-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 - VTH1 = 3.075V (T-suffix), VTH2 = 3.075V (T-suffix) - and providing 210ms (min) reset timeout. It asserts active-low push-pull RST output when either supply drops below threshold and maintains reset for the full timeout after recovery. Used in telecom power sequencing and multivoltage embedded systems requiring reliable brownout detection.
For engineers reviewing the MAX6715UTTGD3-T datasheet, MAX6715UTTGD3-T pinout, MAX6715UTTGD3-T application, or MAX6715UTTGD3-T equivalent, key selection factors include its dual-supply monitoring capability, guaranteed reset validity down to VCC1/VCC2 = 0.8V, push-pull RST output referenced to VCC1, 14µA typical supply current at 3.6V, and -40°C to +85°C industrial temperature operation.
Technical Context
The MAX6715UTTGD3-T implements independent voltage comparators for VCC1 and VCC2, each with 20ppm/°C tempco and 0.5% hysteresis referenced to typical threshold. Its reset logic combines ORed fault conditions (VCC1 < VTH1, VCC2 < VTH2, MR low) and a monostable timeout timer that restarts on any new fault before timeout completion.
This device belongs to the MAX6715–MAX6729 family of ultra-low-voltage supervisors with no watchdog, manual reset input (MR), and no RSTIN/PFI/WDI pins - confirmed by Selector Guide entry for MAX6715 as "2 monitors, √ manual reset, - watchdog, - power-fail". Pin 3 is MR (active-low, internal 50kΩ pullup to VCC1), and reset output is push-pull (per MAX6716-style output per ordering table and Selector Guide).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Threshold | 3.075V (T-suffix), ±1.5% over temp - sets brownout detection point for primary supply like 3.3V I/O rails |
| VCC2 Threshold | 3.075V (T-suffix), ±1.5% over temp - enables monitoring of secondary 3.3V or 2.5V core supply |
| Reset Timeout | 210ms (min), D3-suffix - ensures µP reset hold time exceeds boot ROM initialization duration |
| Supply Current | 14µA (typ) at 3.6V - enables use in battery-backed or always-on monitoring without significant quiescent load |
| Operating Temp | -40°C to +85°C - supports deployment in industrial and telecom equipment environments |
| Reset Validity | Guaranteed down to VCC1 or VCC2 = 0.8V - ensures deterministic reset assertion during deep brownout |
| Output Type | Push-pull active-low RST referenced to VCC1 - eliminates need for external pullup and drives directly into µP reset pin |
Pinout & Package
MAX6715UTTGD3-T is housed in a 6-pin SOT23-6 package (2.9mm × 1.6mm × 1.1mm), RoHS-compliant, with gull-wing leads and thermal pad not connected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RST | Active-low push-pull reset output referenced to VCC1; asserts when VCC1/VCC2 drop below threshold or MR is pulled low |
| 2 | GND | Analog/digital ground reference for all comparators and output drivers; must be low-impedance connection |
| 3 | MR | Active-low manual reset input with internal 50kΩ pullup to VCC1; 1µs minimum pulse width required to trigger reset |
| 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 - pin 5 is unassigned in MAX6715 configuration per Pin Description table |
| 6 | VCC1 | Primary supply input (1.8V–5.0V range); powers device core, references RST output, and feeds VCC1 comparator |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitoring | Simultaneous VCC1 and VCC2 supervision with separate thresholds avoids single-point failure in multirail systems |
| Push-pull RST output | Drives µP reset pin directly without external pullup, reducing BOM count and layout area vs. open-drain alternatives |
| Guaranteed reset at low VCC | Valid reset assertion down to 0.8V on either supply enables robust operation during severe brownout or cold-start conditions |
| Low 14µA supply current | Minimizes impact on battery life in portable equipment and reduces self-heating in sealed enclosures |
| Immunity to short VCC transients | Withstands ≤20µs negative glitches (per Typical Operating Characteristics) without spurious reset, improving system noise resilience |
Applications
| Telecom Power Sequencing | Industrial PLC I/O Modules |
|---|---|
Use Scenario: Monitoring 3.3V backplane and 2.5V FPGA core rails in carrier-grade line cards during hot-swap insertion. IC Role / Device Role / Timing Role: Dual-supply supervisor asserting synchronized reset to FPGA and management MCU upon either rail undervoltage. Use Value: Prevents configuration corruption by ensuring both supplies stabilize before release of FPGA reset, leveraging 210ms timeout aligned with FPGA startup timing. | Use Scenario: Supervising 5V logic and 3.3V microcontroller supply in DIN-rail mounted programmable logic controllers exposed to wide ambient temperature swings. IC Role / Device Role / Timing Role: Primary brownout detector generating clean reset signal referenced to VCC1, with MR enabling field-service firmware reload. Use Value: Guarantees reset validity down to 0.8V on either rail, enabling safe shutdown during AC mains sag - critical for deterministic I/O state retention. |
| Server Management Controllers | Battery-Powered Edge Sensors |
Use Scenario: Ensuring proper boot sequence of BMC (Baseboard Management Controller) powered by dedicated 3.3V LDO and shared 1.8V memory rail. IC Role / Device Role / Timing Role: Dual-threshold supervisor validating both rails before releasing BMC reset, with push-pull output driving low-capacitance reset net. Use Value: Eliminates need for external pullup resistor on reset line, reducing component count and PCB area in space-constrained server mezzanine cards. | Use Scenario: Monitoring coin-cell-backed 3.0V RTC supply and 1.8V sensor interface rail in wireless environmental nodes operating for years on primary battery. IC Role / Device Role / Timing Role: Ultra-low-quiescent supervisor detecting supply decay before data loss, with MR allowing wake-from-sleep reset initiation. Use Value: 14µA typical ICC enables >10-year shelf life on CR2032; 210ms timeout provides ample margin for sensor ADC calibration post-reset. |
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, 1.4µA IQ | Lacks VCC2 monitoring; requires external resistor divider for dual-rail use | Select when only primary 3.3V rail supervision is needed and ultra-low IQ is critical |
| ADM6713SRTZ-33-R7 | Dual-supply (3.3V/3.3V), open-drain RST, 200ms timeout, 20µA IQ, -40°C to +125°C | Higher max temperature rating but open-drain output requires pullup | Select for extended temperature operation where external pullup is acceptable |
Compared with TPS3808G33DBVR and ADM6713SRTZ-33-R7, the MAX6715UTTGD3-T uniquely delivers true dual independent supply monitoring with push-pull RST in a 6-pin SOT23, eliminating external components while maintaining industrial temperature range and sub-15µA quiescent current.
Availability
MAX6715UTTGD3-T is available at Aetrix Electronics and suitable for telecom power sequencing, industrial PLC I/O modules, and server management controllers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6715UTTGD3-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, mixed-signal, and power management ICs for demanding industrial, automotive, and communications applications.
The MAX6715–MAX6729 product line delivers ultra-low-voltage supervisory circuits optimized for multivoltage embedded systems where reliability, small footprint, and guaranteed reset behavior under brownout are critical design requirements.
FAQ
What is the exact reset threshold voltage for VCC1 and VCC2 on the MAX6715UTTGD3-T?
The MAX6715UTTGD3-T uses the "T" suffix for both VCC1 and VCC2 thresholds, corresponding to 3.075V (typical) with ±1.5% tolerance over temperature and supply voltage. This is confirmed in the Reset Voltage Threshold Suffix Guide and Electrical Characteristics table, where T-suffix maps to VTH1 = VTH2 = 3.075V (falling). The D3 suffix denotes 210ms minimum reset timeout period.
Does the MAX6715UTTGD3-T support manual reset functionality, and how is it implemented?
Yes, the MAX6715UTTGD3-T includes an active-low manual reset input (MR) on pin 3, with an internal 50kΩ pullup resistor to VCC1. Pulling MR low for ≥1µs forces an immediate reset assertion, which remains active for the full 210ms timeout period after MR returns high. This allows field service, test technicians, or external logic to initiate a controlled system reset without cycling power.
Is the reset output of the MAX6715UTTGD3-T push-pull or open-drain, and what are the drive capabilities?
The MAX6715UTTGD3-T features a push-pull active-low RST output on pin 1, referenced to VCC1. It guarantees VOL ≤ 0.4V at ISINK = 3.2mA (VCC1 ≥ 4.5V) and VOH ≥ 0.8 × VCC1 at ISOURCE = 800µA. This eliminates the need for an external pullup resistor and enables direct interfacing with µP reset inputs, unlike open-drain variants in the same family.
What is the minimum supply voltage at which the MAX6715UTTGD3-T guarantees valid reset operation?
The MAX6715UTTGD3-T guarantees correct reset output logic state down to VCC1 or VCC2 = 0.8V, as explicitly stated in the General Description and Electrical Characteristics. This ensures deterministic reset assertion during deep brownout conditions - a key differentiator versus supervisors requiring ≥1.0V or higher for reset validity.
How does the MAX6715UTTGD3-T handle short-duration supply transients, and what is its immunity specification?
The MAX6715UTTGD3-T is immune to short negative-going VCC transients up to 20µs in duration when the overdrive is ≥100mV below threshold (per Typical Operating Characteristics graph "Maximum VCC Transient Duration vs. Reset Threshold Overdrives"). This prevents spurious resets caused by switching noise or coupling, and a 0.1µF bypass capacitor near VCC pins further enhances transient rejection.
MAX6715UTTGD3-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:
- 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-T FAQ
1.How can I place an order for MAX6715UTTGD3-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6715UTTGD3-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 MAX6715UTTGD3-T reliable?
The price and inventory of MAX6715UTTGD3-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6715UTTGD3-T is usually 5 days.
3.What payment methods are accepted for MAX6715UTTGD3-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6715UTTGD3-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6715UTTGD3-T?
MAX6715UTTGD3-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6715UTTGD3-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 MAX6715UTTGD3-T?
For technical support, including MAX6715UTTGD3-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6715UTTGD3-T requirements.
6.How does Aetrix verify that MAX6715UTTGD3-T is sourced from the original manufacturer or authorized distributors?
All MAX6715UTTGD3-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 MAX6715UTTGD3-T meets industry standards.
7.What is the process for return or replacement of MAX6715UTTGD3-T?
All MAX6715UTTGD3-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6715UTTGD3-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 MAX6715UTTGD3-T part is unused and in its original packaging.
Return procedure for MAX6715UTTGD3-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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