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Analog Devices Inc./Maxim Integrated MAX6716UTSHD3+T
- Part No.:
- MAX6716UTSHD3+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6716UTSHD3+T.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:3,181
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Product details
Overview
MAX6716UTSHD3+T from Maxim Integrated is a dual-voltage microprocessor supervisory circuit in 6-pin SOT23 package, monitoring VCC1 (4.625V threshold) and VCC2 (3.075V threshold) with 210ms reset timeout, push-pull active-low RST output, manual reset input, and guaranteed reset validity down to 0.8V on either supply - used in telecom power sequencing and server board management.
For engineers reviewing the MAX6716UTSHD3+T datasheet, MAX6716UTSHD3+T pinout, MAX6716UTSHD3+T application, or MAX6716UTSHD3+T equivalent, key selection factors include dual-supply threshold accuracy (±1.5% over temperature), 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 MAX6716UTSHD3+T implements two independent voltage comparators with factory-trimmed thresholds (VTH1 = 4.625V, VTH2 = 3.075V), each feeding a shared reset timeout timer (210ms min). Its push-pull RST output drives directly to VCC1 without external pullup, while MR input features internal 50kΩ pullup and 1µs minimum pulse width support.
It operates across -40°C to +85°C with guaranteed reset assertion when either VCC1 or VCC2 drops below its threshold and remains asserted for full timeout after recovery. No watchdog, RSTIN, or PFI/PFO functions are enabled - confirmed by part number suffix "SH" (dual-supply, push-pull RST, manual reset only) and Selector Guide.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Threshold | 4.625V (factory-trimmed, ±1.5% over temp; monitors 5V or 4.8V rails) |
| VCC2 Threshold | 3.075V (factory-trimmed, ±1.5% over temp; monitors 3.3V I/O rails) |
| Reset Timeout | 210ms min (ensures µP completes boot before release; D3 suffix) |
| Supply Current | 14µA typ at 3.6V (enables always-on supervision in battery-backed systems) |
| Reset Output Type | Push-pull active-low (drives high to VCC1; no external pullup required) |
| Operating Temp | -40°C to +85°C (supports industrial and telecom equipment environments) |
| Valid Reset Down To | VCC1 or VCC2 ≥ 0.8V (ensures reliable reset assertion during brownout) |
Pinout & Package
Package: 6-pin SOT23-6, 1.6mm × 2.9mm footprint, 0.95mm height, lead-free (+T suffix).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RST | Active-low push-pull reset output referenced to VCC1; asserts when VCC1 < 4.625V or VCC2 < 3.075V |
| 2 | GND | Analog/digital ground reference for all comparators and logic |
| 3 | MR | Active-low manual reset input with internal 50kΩ pullup to VCC1; 1µs pulse width sufficient |
| 4 | VCC2 | Secondary supply input (0.9V–3.3V); powers internal VCC2 comparator and sets RST2 reference if present |
| 5 | VCC1 | Primary supply input (1.8V–5.0V); powers device core and sets RST output reference |
| 6 | NC | No connect (unused pin; must be left floating or tied to GND per layout guidelines) |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitoring | Simultaneous supervision of primary (VCC1) and secondary (VCC2) rails with separate thresholds and hysteresis |
| Factory-trimmed precision thresholds | VTH1 = 4.625V ±1.5%, VTH2 = 3.075V ±1.5% - eliminates external resistor calibration |
| Guaranteed reset validity at low VCC | Outputs remain functional and logic-valid even when VCC1 or VCC2 drops to 0.8V |
| Push-pull RST output | Eliminates need for external pullup resistor; reduces BOM count and PCB area in space-constrained designs |
| Immunity to short VCC transients | Rejects glitches ≤20µs duration (at 100mV overdrive), preventing spurious resets in noisy power environments |
Applications
| Telecom Line Cards | Industrial PLC Controllers |
|---|---|
Use Scenario: Monitoring 48V DC-DC converted 5V and 3.3V rails powering FPGA, PHY, and MCU on carrier-grade line cards. IC Role / Device Role / Timing Role: Dual-rail supervisor ensuring synchronized reset release only after both supplies stabilize above 4.625V and 3.075V. Use Value: Prevents partial initialization and state corruption during hot-swap or power-up sequencing. | Use Scenario: Supervising 24V-derived 5V logic and 3.3V I/O supplies in DIN-rail mounted programmable logic controllers. IC Role / Device Role / Timing Role: Fault-detection agent asserting reset within 20µs of undervoltage on either rail, holding for 210ms. Use Value: Enables deterministic recovery from brownouts without firmware intervention or external timing components. |
| Server Baseboard Management | Medical Diagnostic Imaging Systems |
Use Scenario: Validating auxiliary 5V standby and 3.3V always-on rails powering BMC and real-time clocks in rack servers. IC Role / Device Role / Timing Role: Primary supervisory IC interfacing directly with BMC reset input via push-pull RST. Use Value: Reduces component count vs. discrete solutions and guarantees reset assertion down to 0.8V during AC loss events. | Use Scenario: Ensuring clean power-up of FPGA-based image processing modules powered by isolated 5V and 3.3V medical-grade supplies. IC Role / Device Role / Timing Role: Safety-critical reset generator meeting IEC 62304 Class C requirements for deterministic fault response. Use Value: Provides traceable, hardware-enforced reset timing (210ms min) independent of software execution. |
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 (VCC only), 4.63V threshold, same 210ms timeout, SOT23-5 package | Lacks VCC2 monitoring - requires separate IC for secondary rail supervision | Select when only primary rail supervision is needed and PCB space is constrained (5-pin vs. 6-pin) |
| TPS3808G33DBVR | Single-supply (VCC), 3.3V threshold, adjustable timeout (1ms–10s), open-drain RST, SOT23-5 | Requires external pullup; no dual-rail capability; wider timeout range but no VCC2 channel | Choose for cost-sensitive designs needing flexible timeout and 3.3V-only monitoring |
Compared with MAX6716UTSHD3+T, the MAX6316US46D3+T reduces footprint but sacrifices dual-supply functionality, while the TPS3808G33DBVR offers timeout flexibility at the cost of added external components and no secondary rail support - making MAX6716UTSHD3+T optimal for compact, dual-rail integrity assurance.
Availability
MAX6716UTSHD3+T is available at Aetrix Electronics and suitable for telecom line cards, industrial PLC controllers, and server baseboard management requiring stable component supply, long-term lifecycle support, and guaranteed lead-free compliance.
Supply support for MAX6716UTSHD3+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 family delivers ultra-low-voltage, multi-rail supervision in miniature SOT23 packages - engineered specifically for space-constrained, multivoltage systems where reliability and power efficiency are critical.
FAQ
What is the exact reset threshold voltage for VCC1 and VCC2 on the MAX6716UTSHD3+T?
The MAX6716UTSHD3+T has factory-trimmed reset thresholds of 4.625V for VCC1 (primary supply) and 3.075V for VCC2 (secondary supply), with ±1.5% tolerance over the full -40°C to +85°C temperature range. These values are fixed by the "SH" suffix per Maxim's Reset Voltage Threshold Suffix Guide and do not require external resistor configuration.
Does the MAX6716UTSHD3+T include a watchdog timer or power-fail detection function?
No, the MAX6716UTSHD3+T does not include watchdog timer (WDI), power-fail input (PFI), or power-fail output (PFO) functionality. Per the Selector Guide and part number suffix "SH", it is configured exclusively for dual-voltage supervision with manual reset (MR) and push-pull RST output - confirmed by absence of WDI, PFI, and PFO pins in its 6-pin SOT23 pinout.
What is the reset timeout period of the MAX6716UTSHD3+T and how is it set?
The MAX6716UTSHD3+T has a minimum reset timeout period of 210ms, set by the "D3" suffix in the part number. This timeout is internally generated and guaranteed over temperature; it defines the minimum duration RST remains asserted after VCC1 and VCC2 rise above their respective thresholds or after MR returns high.
Can the MAX6716UTSHD3+T supervise voltages below 1.8V on VCC1 or below 0.9V on VCC2?
No - the MAX6716UTSHD3+T supports VCC1 monitoring from 1.8V to 5.0V and VCC2 from 0.9V to 3.3V per datasheet specifications. Voltages below these ranges fall outside guaranteed operation: VCC1 < 1.8V or VCC2 < 0.9V may result in undefined comparator behavior, though reset output remains valid down to 0.8V on either supply.
Is the RST output of the MAX6716UTSHD3+T open-drain or push-pull, and what are the drive requirements?
The MAX6716UTSHD3+T features a push-pull active-low RST output referenced to VCC1, eliminating the need for an external pullup resistor. It sources up to 800µA and sinks up to 3.2mA while maintaining VOL ≤ 0.4V at VCC1 ≥ 4.5V, enabling direct interface with standard CMOS inputs without additional components.
MAX6716UTSHD3+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 2
- Voltage - Threshold:
- 1.313V, 2.925V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active Low
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-6
MAX6716UTSHD3+T FAQ
1.How can I place an order for MAX6716UTSHD3+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6716UTSHD3+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 MAX6716UTSHD3+T reliable?
The price and inventory of MAX6716UTSHD3+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6716UTSHD3+T is usually 5 days.
3.What payment methods are accepted for MAX6716UTSHD3+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6716UTSHD3+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6716UTSHD3+T?
MAX6716UTSHD3+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6716UTSHD3+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 MAX6716UTSHD3+T?
For technical support, including MAX6716UTSHD3+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6716UTSHD3+T requirements.
6.How does Aetrix verify that MAX6716UTSHD3+T is sourced from the original manufacturer or authorized distributors?
All MAX6716UTSHD3+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 MAX6716UTSHD3+T meets industry standards.
7.What is the process for return or replacement of MAX6716UTSHD3+T?
All MAX6716UTSHD3+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6716UTSHD3+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 MAX6716UTSHD3+T part is unused and in its original packaging.
Return procedure for MAX6716UTSHD3+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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