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Analog Devices Inc./Maxim Integrated MAX6717UKLTD3+T
- Part No.:
- MAX6717UKLTD3+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- -
- Datasheet:
-
MAX6717UKLTD3+T.pdf
- Description:
- IC SUPERVISOR MPU SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:7,086
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Product details
Overview
MAX6717UKLTD3+T from Maxim Integrated is a dual-voltage microprocessor supervisory circuit in 5-pin SOT23 package, monitoring VCC1 (1.8V–5.0V) and VCC2 (0.9V–3.3V) with factory-trimmed reset thresholds, 210ms minimum reset timeout, and open-drain active-low RST output. It guarantees valid reset assertion down to VCC1 or VCC2 = 0.8V and draws only 14µA typical supply current at 3.6V - used in portable battery-operated systems requiring ultra-low-power voltage monitoring and reliable reset generation.
For engineers reviewing the MAX6717UKLTD3+T datasheet, MAX6717UKLTD3+T pinout, MAX6717UKLTD3+T application, or MAX6717UKLTD3+T equivalent, key selection criteria include dual-supply threshold accuracy (±1.5% over temperature), immunity to sub-20µs VCC transients, guaranteed reset validity at 0.8V supply, and compatibility with manual reset and watchdog-free designs in space-constrained embedded systems.
Technical Context
The MAX6717UKLTD3+T implements independent dual-voltage monitoring with separate internal comparators for VCC1 and VCC2, each referencing a precision bandgap-derived threshold. Reset assertion occurs when either supply falls below its trimmed threshold, and reset remains asserted for a fixed 210ms (min) timeout after both supplies recover.
No watchdog timer or RSTIN/PFI inputs are included - confirmed by Selector Guide and Pin Configuration tables showing MAX6717 as 2-monitor, open-drain RST-only, no WDI, no RSTIN, no PFI/PFO. Its 5-pin SOT23 layout allocates pins strictly to VCC1, VCC2, GND, MR, and RST.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Range | 1.8V to 5.0V - powers device and sets primary reset threshold |
| VCC2 Range | 0.9V to 3.3V - powers secondary monitor path and sets secondary threshold |
| Reset Timeout | 210ms (min) - ensures µP completes boot before release |
| Supply Current | 14µA (typ) at 3.6V - enables multi-year battery life in portable devices |
| Reset Validity | Down to VCC1 or VCC2 = 0.8V - maintains functional reset during brownout |
| MR Input | Active-low with 50kΩ internal pullup to VCC1 - supports momentary switch without external components |
| RST Output | Open-drain, active-low - requires external pullup; compatible with bidirectional µP reset pins |
Pinout & Package
Package: 5-pin SOT23 (2.9mm × 1.6mm × 1.1mm), surface-mount, lead-free (+T suffix).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RST | Active-low open-drain reset output; asserts when VCC1 or VCC2 drops below threshold or MR is pulled low |
| 2 | GND | Ground reference for all internal comparators and logic |
| 3 | MR | Active-low manual reset input; internally pulled up to VCC1; 1µs minimum pulse width required |
| 4 | VCC2 | Secondary supply input; powers VCC2 comparator path and sets VTH2 threshold |
| 5 | VCC1 | Primary supply input; powers core logic, VCC1 comparator, and MR pullup |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitors | Simultaneous VCC1 and VCC2 supervision eliminates need for two discrete supervisors |
| Factory-trimmed reset thresholds | VTH1 and VTH2 set by part number suffix (e.g., 'L' = 4.625V/3.075V); ±1.5% accuracy over -40°C to +85°C |
| Guaranteed reset at low VCC | Valid RST assertion even if VCC1 or VCC2 drops to 0.8V - critical for brownout resilience |
| Ultra-low quiescent current | 14µA typical at 3.6V - reduces system standby power by >90% vs. legacy supervisors |
| Immunity to short VCC transients | Rejects glitches <20µs duration - prevents spurious resets during switching noise |
Applications
| Portable Medical Sensors | Industrial PLC I/O Modules |
|---|---|
Use Scenario: Battery-powered glucose meters and ECG patches operating from single Li-ion cell (2.7–4.2V) with 1.8V digital core rail. IC Role / Device Role / Timing Role: Dual-supply supervisor ensuring safe µP reset during battery sag or cold-temperature voltage drop. Use Value: 210ms timeout prevents premature release before ADC calibration completes; 0.8V reset validity avoids lockup during deep discharge. | Use Scenario: DIN-rail mounted PLC modules with isolated 5V field power and 3.3V logic supply. IC Role / Device Role / Timing Role: Independent monitoring of both rails to detect undervoltage on either domain before firmware execution. Use Value: Open-drain RST interfaces directly to µP's bidirectional reset pin; 14µA supply current minimizes heat in sealed enclosures. |
| Set-Top Box Power Sequencing | Network Router Baseboard Management |
Use Scenario: Consumer STB with 12V input converted to 5V main and 1.2V SoC core rails. IC Role / Device Role / Timing Role: Ensures 5V rail stabilizes before releasing reset to SoC, while monitoring core rail integrity. Use Value: Factory-trimmed thresholds eliminate external resistor networks; 5-pin SOT23 saves PCB area vs. discrete solutions. | Use Scenario: Enterprise router with redundant 3.3V management rail and 1.8V BMC processor supply. IC Role / Device Role / Timing Role: Supervises dual management supplies to trigger controlled reboot if either fails during firmware update. Use Value: MR input allows BMC-initiated reset without hardware modification; 50kΩ internal MR pullup removes BOM line item. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-voltage supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6715UTLTD3+T | 6-pin SOT23; identical VTH1/VTH2 (4.625V/3.075V), 210ms timeout, same dual-monitor function but adds unused RST2 pin | Requires PCB layout change for extra pin; no functional advantage over MAX6717UKLTD3+T in 2-supply-only use cases | Select MAX6717UKLTD3+T for minimal footprint where only one reset output is needed. |
| TPS3808G33DBVR | Single-supply supervisor (3.3V only); no VCC2 input; 200ms timeout; push-pull RST; 1.6µA IQ | Cannot monitor dual rails simultaneously; requires separate IC for second supply; lower IQ but higher design complexity | Choose only if system has single regulated rail and ultra-low IQ is prioritized over dual monitoring. |
Compared with MAX6717UKLTD3+T, MAX6715UTLTD3+T offers redundant pinout flexibility at cost of board area, while TPS3808G33DBVR trades dual-supply capability for lower quiescent current - making MAX6717UKLTD3+T optimal for compact, dual-rail battery-powered systems needing guaranteed 0.8V reset validity.
Availability
MAX6717UKLTD3+T is available at Aetrix Electronics and suitable for portable medical sensors, industrial PLC I/O modules, set-top box power sequencing, and network router baseboard management requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6717UKLTD3+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 and mixed-signal ICs for power, sensing, and interface applications in industrial, automotive, and computing markets.
The MAX6715–MAX6729 family delivers ultra-low-voltage, dual/triple-supply microprocessor supervisors optimized for space-constrained, battery-sensitive systems requiring high reset accuracy and guaranteed operation down to 0.8V supply.
FAQ
What is the reset threshold voltage for MAX6717UKLTD3+T?
The MAX6717UKLTD3+T uses suffix 'L' for VCC1 and VCC2 thresholds: VTH1 = 4.625V (±1.5%) and VTH2 = 3.075V (±1.5%), factory-trimmed and specified over -40°C to +85°C. These values are confirmed in the Reset Voltage Threshold Suffix Guide and Electrical Characteristics table. The 'D3' suffix denotes 210ms minimum reset timeout. MAX6717UKLTD3+T does not support adjustable RSTIN or PFI inputs.
Does MAX6717UKLTD3+T include a watchdog timer?
No, MAX6717UKLTD3+T does not include a watchdog timer. Per the Selector Guide and Pin Description tables, only MAX6721–MAX6729 variants support WDI functionality. MAX6717UKLTD3+T is a dual-supply supervisor with manual reset (MR) and open-drain RST only. This simplifies firmware design where continuous watchdog polling is unnecessary. MAX6717UKLTD3+T relies solely on voltage monitoring and MR for reset initiation.
What is the package type and pin count of MAX6717UKLTD3+T?
MAX6717UKLTD3+T is packaged in a 5-pin SOT23 (2.9mm × 1.6mm × 1.1mm) with gull-wing leads. Pinout is: Pin 1 = RST (open-drain), Pin 2 = GND, Pin 3 = MR, Pin 4 = VCC2, Pin 5 = VCC1. This matches the "UK" prefix designation in Maxim's Ordering Information table and is distinct from 6-pin (UT) or 8-pin (KA) variants. MAX6717UKLTD3+T's compact size reduces PCB area by ~30% versus 6-pin alternatives.
Can MAX6717UKLTD3+T monitor three supply voltages?
No, MAX6717UKLTD3+T monitors exactly two supply voltages: VCC1 and VCC2. It lacks RSTIN, PFI, or auxiliary inputs required for triple-voltage supervision. The Selector Guide explicitly lists MAX6717 as a "2"-monitor device with no RSTIN/PFI/WDI support. For three-rail monitoring, consider MAX6719 or MAX6723 variants. MAX6717UKLTD3+T is purpose-built for dual-rail systems where simplicity and minimal footprint are priorities.
What is the minimum supply voltage at which MAX6717UKLTD3+T guarantees valid reset output?
MAX6717UKLTD3+T guarantees valid reset output logic state as long as either VCC1 or VCC2 remains above 0.8V - confirmed in the General Description and Absolute Maximum Ratings sections. Below 0.8V, reset behavior is not specified. This 0.8V guarantee enables robust operation during brownout conditions where other supervisors may fail. MAX6717UKLTD3+T achieves this via internal biasing that remains functional at ultra-low VCC, unlike many competitors requiring ≥1.2V.
MAX6717UKLTD3+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- -
- Number of Voltages Monitored:
- -
- Voltage - Threshold:
- -
- Output:
- -
- Reset:
- -
- Reset Timeout:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
MAX6717UKLTD3+T FAQ
1.How can I place an order for MAX6717UKLTD3+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6717UKLTD3+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 MAX6717UKLTD3+T reliable?
The price and inventory of MAX6717UKLTD3+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6717UKLTD3+T is usually 5 days.
3.What payment methods are accepted for MAX6717UKLTD3+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6717UKLTD3+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6717UKLTD3+T?
MAX6717UKLTD3+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6717UKLTD3+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 MAX6717UKLTD3+T?
For technical support, including MAX6717UKLTD3+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6717UKLTD3+T requirements.
6.How does Aetrix verify that MAX6717UKLTD3+T is sourced from the original manufacturer or authorized distributors?
All MAX6717UKLTD3+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 MAX6717UKLTD3+T meets industry standards.
7.What is the process for return or replacement of MAX6717UKLTD3+T?
All MAX6717UKLTD3+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6717UKLTD3+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 MAX6717UKLTD3+T part is unused and in its original packaging.
Return procedure for MAX6717UKLTD3+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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