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Analog Devices Inc./Maxim Integrated MAX6716UTSHD3+
- Part No.:
- MAX6716UTSHD3+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6716UTSHD3+.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:3,271
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Product details
Overview
MAX6716UTSHD3+ 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+ datasheet, MAX6716UTSHD3+ pinout, MAX6716UTSHD3+ application, or MAX6716UTSHD3+ 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 bidirectional µP reset I/O via 4.7kΩ series resistor.
Technical Context
The MAX6716UTSHD3+ integrates two independent voltage comparators with factory-trimmed thresholds (VTH1 = 4.625V, VTH2 = 3.075V), a 210ms minimum reset timeout timer, and push-pull RST output referenced to VCC1. It asserts reset when either monitored 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 with VCC1 or VCC2 ≥0.8V, and exhibits 20ppm/°C reset threshold tempco - enabling stable operation across -40°C to +85°C industrial environments without external hysteresis components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Threshold | 4.625V (factory-trimmed, ±1.5% over -40°C to +85°C) - ensures reliable brownout detection for 5V/4.8V system rails |
| VCC2 Threshold | 3.075V (factory-trimmed, ±1.5% over -40°C to +85°C) - matches common 3.3V I/O or core supply monitoring |
| Reset Timeout | 210ms (minimum) - provides sufficient hold time for FPGA configuration or BIOS initialization sequences |
| Supply Current | 14µA (typical at 3.6V) - enables use in always-on battery-backed subsystems without significant drain |
| Reset Output Type | Push-pull active-low RST - eliminates need for external pullup and drives directly into µP reset pin |
| Operating Temp | -40°C to +85°C - qualified for industrial and telecom equipment deployment without derating |
| VCC Immunity | Immune to transients <20µs (at 100mV overdrive) - prevents false resets during switching noise or load dumps |
Pinout & Package
MAX6716UTSHD3+ uses a 6-pin SOT23-6 package (2.9mm × 1.6mm × 1.1mm height) with gull-wing leads, RoHS-compliant lead-free finish (+T suffix), and thermal pad not electrically connected.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RST | Active-low push-pull reset output referenced to VCC1; sinks 3.2mA at VCC1 ≥4.5V; asserts when VCC1/VCC2 fall below thresholds |
| 2 | GND | Analog/digital ground reference for all internal comparators, timers, and output drivers |
| 3 | MR | Active-low manual reset input with internal 50kΩ pullup to VCC1; accepts TTL/CMOS levels; requires ≥1µs pulse width |
| 4 | VCC2 | Secondary supply input (0.9V–3.3V range); powers internal VCC2 comparator and sets RST2 reference if enabled |
| 5 | VCC1 | Primary supply input (1.8V–5.0V range); powers device core, sets RST output reference, and enables VCC1 comparator |
| 6 | NC | No connect - internally unconnected; must be left floating or tied to GND per layout best practice |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitoring | Simultaneous supervision of primary (VCC1) and secondary (VCC2) rails with separate, factory-trimmed thresholds avoids cascaded failure propagation |
| Guaranteed reset validity to 0.8V | Ensures deterministic reset assertion even during deep brownout conditions where VCC1 or VCC2 drops to 0.8V - critical for safe shutdown sequencing |
| Push-pull RST output | Eliminates external pullup resistor, reduces BOM count, and provides stronger drive (3.2mA sink) than open-drain alternatives for noisy µP interfaces |
| Low 14µA supply current | Enables integration into always-on power domains (e.g., RTC backup, wake-on-LAN controllers) without compromising battery life |
| 20µs transient immunity | Rejects short-duration supply glitches common in DC/DC converter switching noise, preventing spurious system resets |
Applications
| Telecom Line Card Power Management | Industrial PLC CPU Module |
|---|---|
Use Scenario: Monitoring 48V-to-5V and 5V-to-3.3V DC/DC outputs on carrier-grade line cards with hot-swap capability. IC Role / Device Role / Timing Role: Dual-supply supervisor asserting reset during input undervoltage or intermediate rail collapse, holding reset for 210ms to allow orderly FPGA reconfiguration. Use Value: Prevents corrupted firmware execution during partial power loss by ensuring µP remains held in reset until both rails stabilize within tolerance. |
Use Scenario: Supervising 24V field power and 3.3V logic supply in programmable logic controller CPU modules operating in harsh factory environments. IC Role / Device Role / Timing Role: Detecting simultaneous drop in main and auxiliary supplies; using MR pin for operator-initiated firmware recovery via front-panel button. Use Value: Enables deterministic fail-safe behavior during voltage sags caused by motor startup or EMI events, meeting IEC 61000-4-11 immunity requirements. |
| Server Baseboard Management Controller (BMC) | Medical Imaging Power Sequencing |
Use Scenario: Coordinating power-up sequence of BMC SoC (1.8V core, 3.3V I/O) and companion PMIC in redundant server management subsystems. IC Role / Device Role / Timing Role: Providing synchronized reset assertion across dual voltage domains with precise 4.625V/3.075V thresholds matching SoC specification limits. Use Value: Eliminates race conditions during cold boot by guaranteeing reset deassertion only after both supplies exceed their respective thresholds for ≥210ms. |
Use Scenario: Ensuring clean power-up of FPGA-based image processing pipeline (1.2V core, 2.5V memory) in portable ultrasound devices with Li-ion battery input. IC Role / Device Role / Timing Role: Acting as primary supervisor during battery discharge - maintaining valid reset state down to 0.8V on either rail to prevent partial initialization. Use Value: Avoids corrupted DICOM data transfer or sensor calibration errors by enforcing strict power-rail monotonicity before firmware execution begins. |
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+ | Single-supply monitor (4.63V only), no VCC2 input, same 210ms timeout and SOT23-5 package | Lacks secondary rail monitoring - suitable only when only one supply requires supervision | Select when cost-sensitive designs require minimal functionality and space-constrained layouts favor 5-pin footprint |
| TPS3808G33DBVR | Single-supply (3.3V threshold), 200ms timeout, open-drain RST, 2.5µA quiescent current, SOT23-6 | No dual-monitoring capability; lower supply current but requires external pullup and lacks MR input | Prefer for ultra-low-power battery systems where only 3.3V rail supervision is needed and PCB area allows pullup resistor |
Compared with MAX6716UTSHD3+, MAX6316US46D3+ reduces component count in single-rail systems but forfeits VCC2 supervision, while TPS3808G33DBVR offers lower current draw but introduces layout complexity with open-drain output and no manual reset - making MAX6716UTSHD3+ optimal for dual-rail industrial control where reliability and integration outweigh marginal current savings.
Availability
MAX6716UTSHD3+ is available at Aetrix Electronics and suitable for telecom line card power management, industrial PLC CPU modules, and server baseboard management controllers requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for MAX6716UTSHD3+ 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 embedded systems needing compact, low-power, dual- or triple-supply supervision with factory-trimmed thresholds and robust reset timing - targeting space-constrained boards in telecom and industrial equipment.
FAQ
What are the exact reset threshold voltages for MAX6716UTSHD3+?
The MAX6716UTSHD3+ 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 encoded in the 'SH' suffix per Maxim's Reset Voltage Threshold Suffix Guide and are verified in the Electrical Characteristics table of the official datasheet.
Does MAX6716UTSHD3+ support manual reset functionality?
Yes, MAX6716UTSHD3+ includes an active-low manual reset (MR) input on Pin 3 with an internal 50kΩ pullup to VCC1. A logic-low pulse ≥1µs on MR forces reset assertion for the full 210ms timeout period, enabling operator-initiated recovery or test-mode reset without external components.
What is the reset output type and drive strength of MAX6716UTSHD3+?
MAX6716UTSHD3+ features a push-pull active-low RST output on Pin 1, referenced to VCC1. It can sink up to 3.2mA when VCC1 ≥4.5V and VCC1 ≥2.7V, eliminating the need for an external pullup resistor and providing direct interface capability with most µP reset inputs.
Can MAX6716UTSHD3+ operate reliably during deep brownout conditions?
Yes, MAX6716UTSHD3+ guarantees valid reset output logic state as long as either VCC1 or VCC2 remains ≥0.8V - a key feature for fail-safe shutdown in systems where one rail may collapse before the other. This is confirmed in the Absolute Maximum Ratings and Detailed Description sections of the datasheet.
What package and environmental rating does MAX6716UTSHD3+ use?
MAX6716UTSHD3+ is supplied in a 6-pin SOT23-6 package (2.9mm × 1.6mm × 1.1mm) with lead-free +T termination, rated for operation from -40°C to +85°C. The package meets JEDEC standards for moisture sensitivity level (MSL) 1 and is compatible with standard reflow soldering profiles.
MAX6716UTSHD3+ 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:
- 1.313V, 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+ FAQ
1.How can I place an order for MAX6716UTSHD3+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6716UTSHD3+ 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+ reliable?
The price and inventory of MAX6716UTSHD3+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6716UTSHD3+ is usually 5 days.
3.What payment methods are accepted for MAX6716UTSHD3+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6716UTSHD3+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6716UTSHD3+?
MAX6716UTSHD3+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6716UTSHD3+ 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+?
For technical support, including MAX6716UTSHD3+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6716UTSHD3+ requirements.
6.How does Aetrix verify that MAX6716UTSHD3+ is sourced from the original manufacturer or authorized distributors?
All MAX6716UTSHD3+ 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+ meets industry standards.
7.What is the process for return or replacement of MAX6716UTSHD3+?
All MAX6716UTSHD3+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6716UTSHD3+, 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+ part is unused and in its original packaging.
Return procedure for MAX6716UTSHD3+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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