My Inquiry
My Account
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:2,496
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
The 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, and guaranteed reset validity down to VCC ≥ 0.8V - used for reliable power-up sequencing and brownout protection in telecom power supplies.
For engineers reviewing the MAX6716UTSHD3 datasheet, MAX6716UTSHD3 pinout, MAX6716UTSHD3 application, or MAX6716UTSHD3 equivalent, key selection criteria include dual-supply threshold accuracy, 210ms min timeout, push-pull RST drive capability, watchdog disable-by-open WDI, and operation over –40°C to +125°C industrial temperature range.
Technical Context
This device implements two independent voltage comparators with factory-trimmed thresholds (VTH1 = 4.625V, VTH2 = 3.075V), a digital reset timer with 210ms minimum timeout, and push-pull RST output referenced to VCC1. It asserts reset when either supply falls below its threshold and holds reset for the full timeout after recovery.
No watchdog or manual-reset functionality is enabled on MAX6716UTSHD3: WDI is unconnected (watchdog disabled), MR is not implemented per pinout, and PFI/PFO are absent. The part belongs to the MAX6715A–MAX6729A family optimized for compact dual-rail supervision without auxiliary inputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Threshold | 4.625V (factory-trimmed falling threshold; ensures reset assertion before 5V rail drops below 4.6V) |
| VCC2 Threshold | 3.075V (factory-trimmed falling threshold; monitors 3.3V rail with 225mV hysteresis margin) |
| Reset Timeout | 210ms (minimum duration; guarantees µP reset hold time sufficient for full firmware initialization) |
| Supply Current | 14µA typical at 3.6V; enables battery-backed systems to maintain supervision >10 years on coin cell |
| Operating Temp | –40°C to +125°C; qualified for under-hood automotive and industrial control cabinet deployment |
| Reset Validity | Guaranteed down to VCC1 or VCC2 = 0.8V; supports valid reset assertion during deep brownout conditions |
| Output Type | Push-pull active-low RST; eliminates need for external pullup and drives directly into µP reset pin |
Pinout & Package
Package: 6-pin SOT23 (2.9mm × 1.6mm × 1.1mm), RoHS-compliant, tape-and-reel.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RST / RST1 | Active-low push-pull reset output referenced to VCC1; asserts low on VCC1/VCC2 undervoltage and holds for 210ms min |
| 2 | GND | Ground reference for all internal comparators, timer, and output stage |
| 3 | MR | Not connected internally; pin is NC on MAX6716UTSHD3 (no manual reset function) |
| 4 | VCC2 | Secondary supply input (3.075V threshold monitor); powers internal VCC2 comparator and RST2 logic (not present on this variant) |
| 5 | VCC1 | Primary supply input (4.625V threshold monitor); powers entire IC and references RST output |
| 6 | WDI | Watchdog input; left open-circuit to disable watchdog (no internal pullup; 200nA detection current) |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitoring | Simultaneous VCC1 (4.625V) and VCC2 (3.075V) supervision with separate comparators and shared reset timer |
| Push-pull RST output | Drives µP reset pin directly without external pullup; sinks 3.2mA at VCC1 ≥ 4.5V, VOL ≤ 0.4V |
| Ultra-low quiescent current | 14µA typical at 3.6V enables multi-year operation in always-on backup power domains |
| Extended temperature operation | –40°C to +125°C rating supports deployment in harsh environments without derating |
| Brownout immunity | Valid reset assertion guaranteed down to VCC = 0.8V, enabling robust response during deep supply sag |
Applications
| Telecom Power Supply Sequencing | Industrial PLC I/O Module |
|---|---|
Use Scenario: Dual-rail DC-DC converter system powering FPGA core (1.2V) and I/O (3.3V) from 5V input, requiring coordinated reset during startup and fault. IC Role / Device Role / Timing Role: Supervises 5V primary and 3.3V secondary rails; asserts RST until both stabilize above thresholds and hold for 210ms. Use Value: Prevents FPGA configuration lockup by ensuring 3.3V rail is fully settled before release of reset signal. |
Use Scenario: DIN-rail mounted programmable logic controller with isolated 24V field power and 5V logic supply, subject to voltage sags in factory floor wiring. IC Role / Device Role / Timing Role: Monitors 24V input (via resistor divider to VCC1) and 5V logic rail (VCC2); triggers hard reset on any undervoltage event. Use Value: Eliminates spurious program crashes during transient line dips by enforcing 210ms reset hold time for full firmware reload. |
| Automotive Infotainment Head Unit | Medical Diagnostic Imaging Subsystem |
Use Scenario: Automotive-grade head unit with 12V battery input converted to 5V/3.3V/1.8V rails, operating in under-dash environment with wide thermal swing. IC Role / Device Role / Timing Role: Supervises 5V main and 3.3V interface supplies; push-pull RST drives microcontroller reset with no external components. Use Value: Ensures deterministic boot after cold crank (battery dip to 6V) by asserting reset until both rails exceed thresholds and remain stable for 210ms. |
Use Scenario: CT scanner subsystem with high-precision analog front-end powered by tightly regulated ±15V and +5V supplies, requiring fail-safe restart on any rail deviation. IC Role / Device Role / Timing Role: Monitors +5V logic rail (VCC1) and isolated +15V analog rail (VCC2 via divider); asserts RST on first threshold breach. Use Value: Guarantees immediate shutdown and controlled reboot upon analog supply droop, preventing corrupted image acquisition. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-voltage supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6326US46D3+ | Single-supply (4.63V only), no VCC2 monitor; 200ms timeout; same SOT23-6 package | Lacks dual-rail capability; suitable only when only primary rail supervision is required | Select when system uses single regulated rail and space-constrained layout demands identical footprint |
| TPS3808G33DBVR | Single-supply (3.3V), 200ms timeout, open-drain RST, 2.9µA ICC; SOT23-6 | Requires external pullup; lower supply current but no secondary rail monitoring | Prefer for ultra-low-power battery systems where only 3.3V rail supervision is needed and board space allows pullup resistor |
Compared with MAX6716UTSHD3, MAX6326US46D3+ reduces cost and complexity for single-rail use but forfeits VCC2 monitoring, while TPS3808G33DBVR offers superior quiescent current but requires external biasing and cannot supervise dual supplies - making MAX6716UTSHD3 uniquely suited for compact dual-rail integrity assurance.
Availability
MAX6716UTSHD3 is available at Aetrix Electronics and suitable for telecom power supplies, industrial PLC modules, and automotive infotainment systems requiring stable component supply across extended temperature and long lifecycle programs.
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) designs precision analog and mixed-signal ICs for industrial, automotive, and communications markets, with emphasis on reliability and integration.
The MAX6715A–MAX6729A product line delivers compact, ultra-low-power supervisory circuits for dual- and triple-voltage monitoring in space-constrained embedded systems - specifically engineered for deterministic reset behavior across wide temperature and supply ranges.
FAQ
What is the exact reset threshold voltage for VCC1 on MAX6716UTSHD3?
The MAX6716UTSHD3 has a factory-trimmed VCC1 reset threshold of 4.625V (typical), with tolerance of ±125mV (4.500V to 4.750V) over temperature. This value is fixed by the "T" suffix in the part number and applies to falling VCC1 transitions only.
Does MAX6716UTSHD3 support manual reset functionality?
No, MAX6716UTSHD3 does not implement manual reset. Pin 3 (MR) is not connected internally - it is an NC (no-connect) pin per the device's specific configuration within the MAX6715A–MAX6729A family.
What is the function of the WDI pin on MAX6716UTSHD3?
On MAX6716UTSHD3, the WDI pin (Pin 6) is unused and must be left open to disable the watchdog timer. The device incorporates a 200nA internal current source to detect the open state; connecting any external source >50nA will prevent proper disable.
Can MAX6716UTSHD3 monitor a 1.8V supply as VCC2?
Yes, MAX6716UTSHD3 monitors VCC2 with a fixed 3.075V threshold, so it cannot directly supervise a 1.8V rail. To monitor 1.8V, use a resistor divider to scale the 1.8V signal up to 3.075V at VCC2 - but note that VCC2 must supply power to the IC, so a dedicated 3.3V or higher auxiliary rail is required.
Is the RST output on MAX6716UTSHD3 push-pull or open-drain?
The RST output (Pin 1) on MAX6716UTSHD3 is push-pull active-low, referenced to VCC1. It actively drives low (≤0.4V at 3.2mA sink) and high (≥0.8×VCC1 at 800µA source), eliminating the need for an external pullup resistor.
MAX6716UTSHD3 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:
- 1.313V, 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-23-6
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.
MAX6716UTSHD3 Tags
-
MIC826SYMT-TR
Microchip Technology
-
APX803S-31SA-7
Diodes Incorporated
-
APX803L20-29SA-7
Diodes Incorporated
-
TPS3828-33DBVR
Texas Instruments
-
V6340RSP3B+
EM Microelectronic
-
EM6325CXSP5B-2.9+
EM Microelectronic
-
MCP120T-300I/TT
Microchip Technology
-
MCP130T-315I/TT
Microchip Technology
-
MCP120T-475I/TT
Microchip Technology
-
MCP111T-300E/TT
Microchip Technology
-
MCP120T-315I/TT
Microchip Technology
-
MCP809T-315I/TT
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
