My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX6722UTVDD3
- Part No.:
- MAX6722UTVDD3
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6722UTVDD3.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:1,994
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX6722UTVDD3 from Maxim Integrated is a dual-voltage microprocessor supervisory IC monitoring VCC1 (primary) and VCC2 (secondary) supplies, with factory-trimmed reset thresholds of 3.075V (VTH1) and 3.075V (VTH2), 210ms minimum reset timeout, push-pull active-low RST output, and operation down to 0.8V supply voltage. It ensures reliable system reset during power-up, brownout, or undervoltage events in space-constrained embedded systems.
For engineers reviewing the MAX6722UTVDD3 datasheet, MAX6722UTVDD3 pinout, MAX6722UTVDD3 application, or MAX6722UTVDD3 equivalent, key selection criteria include dual-supply threshold matching (3.075V/3.075V), guaranteed reset validity at VCC ≥ 0.8V, low 14µA typical supply current, immunity to short VCC transients, and SOT23-6 package compatibility with high-density PCB layouts.
Technical Context
The MAX6722UTVDD3 implements independent dual-voltage monitoring with separate comparators for VCC1 and VCC2, each referencing a precision internal bandgap. Reset assertion occurs when either supply falls below its trimmed threshold (3.075V), and the reset output remains asserted for a guaranteed minimum 210ms after both supplies recover - enforced by an on-chip timeout timer.
It features a push-pull active-low RST output referenced to VCC1, eliminating need for external pullup resistors, and guarantees valid logic states even when VCC1 or VCC2 drops to 0.8V - critical for fail-safe behavior during deep brownout conditions in industrial and automotive control modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Threshold | 3.075V (factory-trimmed, falling edge); ensures precise reset initiation for 3.3V primary rails |
| VCC2 Threshold | 3.075V (factory-trimmed, falling edge); matches VCC1 for symmetrical dual-rail monitoring |
| Reset Timeout | 210ms (min); provides sufficient hold time for µP initialization and peripheral stabilization |
| Supply Current | 14µA (typ @ 3.6V); enables ultra-low-power operation in battery-backed or energy-sensitive systems |
| Operating Temp | -40°C to +125°C; qualified for under-hood automotive, industrial PLC, and telecom infrastructure use |
| Reset Valid Down To | VCC1 or VCC2 = 0.8V; guarantees deterministic reset state during severe brownout without external support circuitry |
| Output Type | Push-pull active-low RST; drives directly into µP reset pin without pullup resistor, reducing BOM count and layout area |
Pinout & Package
MAX6722UTVDD3 is housed in a RoHS-compliant 6-pin SOT23 package (2.9mm × 1.6mm × 1.1mm), optimized for high-density PCBs and reflow-compatible assembly.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RST / RST1 | Active-low push-pull reset output referenced to VCC1; asserts low on VCC1/VCC2 undervoltage, remains low for 210ms min after recovery |
| 2 | GND | System ground reference for all internal comparators, timers, and output drivers |
| 3 | MR | Active-low manual-reset input with 50kΩ internal pullup to VCC1; forces reset when pulled low, holds reset for full timeout after release |
| 4 | VCC2 | Secondary supply input powering VCC2 comparator and related logic; monitored at 3.075V threshold |
| 5 | VCC1 | Primary supply input powering core logic and RST output driver; monitored at 3.075V threshold |
| 6 | NC | No connect; internally unconnected pin - must be left floating or tied to GND per layout best practice |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitoring | Simultaneous real-time supervision of VCC1 and VCC2 with separate comparators avoids single-point failure in multi-rail systems |
| Guaranteed reset validity at 0.8V | Ensures deterministic reset assertion and deassertion even during deep brownout - no external support circuitry required |
| Push-pull RST output | Eliminates need for external pullup resistor, reducing component count, board area, and potential noise coupling paths |
| 210ms minimum reset timeout | Provides robust hold time for slow-starting µPs and peripherals, preventing premature release before stable operation |
| 14µA typical supply current | Minimizes quiescent power draw in always-on subsystems such as watchdog circuits or battery-backed real-time clocks |
Applications
| Industrial PLC Power Monitoring | Automotive Body Control Module |
|---|---|
Use Scenario: Monitoring dual 3.3V rails powering MCU and CAN transceiver in programmable logic controller. IC Role / Device Role / Timing Role: Dual-supply supervisor asserting synchronized reset across both domains upon any rail collapse. Use Value: Prevents partial initialization and firmware corruption during transient brownouts common in factory floor power distribution. | Use Scenario: Supervising 3.3V MCU core and 3.3V I/O rail in vehicle body control unit exposed to load-dump and cold-crank conditions. IC Role / Device Role / Timing Role: Ensures reset remains asserted until both rails stabilize post-brownout, meeting ISO 16750-2 voltage sag requirements. Use Value: Guarantees safe MCU restart without race conditions between core and peripheral power domains. |
| Telecom Line Card Power Sequencing | Medical Infusion Pump Controller |
Use Scenario: Verifying stability of primary 3.3V processor rail and secondary 3.3V sensor interface rail before enabling communication interfaces. IC Role / Device Role / Timing Role: Dual-threshold supervisor with matched 3.075V trip points enforcing strict sequencing compliance. Use Value: Eliminates need for discrete RC timing networks or additional supervisor ICs, reducing BOM and qualification effort. | Use Scenario: Monitoring redundant 3.3V power paths feeding safety-critical MCU and motor driver in battery-operated infusion pump. IC Role / Device Role / Timing Role: Fail-safe supervisor guaranteeing reset assertion down to 0.8V to prevent erratic actuation during battery depletion. Use Value: Meets IEC 62304 Class C software safety requirements by ensuring deterministic reset behavior under worst-case voltage stress. |
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); no VCC2 input; 200ms timeout; open-drain RST | Suitable only for single-rail systems; requires external pullup; lacks dual-threshold capability | Select only if monitoring one 3.3V rail and board space allows pullup resistor |
| ADM6705ARJZ-REEL7 | Dual-supply with adjustable thresholds via external resistors; 200ms timeout; push-pull RST; wider temp range (-40°C to +125°C) | Requires external resistor network for threshold setting; higher 25µA supply current | Choose when flexible threshold tuning is needed and 11µA higher ICC is acceptable |
Compared with TPS3808G33DBVR and ADM6705ARJZ-REEL7, MAX6722UTVDD3 delivers matched 3.075V dual thresholds in a pin-compatible SOT23-6 package with lower 14µA supply current and guaranteed 0.8V reset validity - making it optimal for space- and power-constrained dual-rail systems requiring factory-trimmed precision.
Availability
MAX6722UTVDD3 is available at Aetrix Electronics and suitable for industrial PLCs, automotive body control modules, telecom line cards, and medical infusion pumps requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6722UTVDD3 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 demanding industrial, automotive, and communications applications.
The MAX6715A–MAX6729A family delivers ultra-low-voltage µP supervisory circuits targeting compact, high-reliability systems where dual/three-rail monitoring, low ICC, and guaranteed brownout behavior are essential.
FAQ
What is the exact reset threshold voltage for VCC1 and VCC2 on the MAX6722UTVDD3?
The MAX6722UTVDD3 has factory-trimmed reset thresholds of 3.075V for both VCC1 and VCC2 (falling edge), as indicated by the "T" suffix in the reset voltage threshold coding. This value is specified over the full -40°C to +125°C temperature range with ±1.5% tolerance and 20ppm/°C tempco, ensuring stable trip points across harsh operating environments.
Does the MAX6722UTVDD3 support manual reset functionality?
Yes, the MAX6722UTVDD3 includes an active-low manual-reset input (MR) on Pin 3 with an internal 50kΩ pullup resistor to VCC1. Pulling MR low forces an immediate reset, and the RST output remains asserted for the full 210ms timeout period after MR returns high - enabling operator-initiated recovery or automated test-mode resets without external components.
Is the MAX6722UTVDD3 compatible with 1.8V or 2.5V supply rails?
No - the MAX6722UTVDD3 is specifically configured for 3.075V thresholds and is not rated for reliable operation on 1.8V or 2.5V rails. Its VCC1 and VCC2 monitoring range supports 1.58V to 4.63V (VTH1) and 0.79V to 3.08V (VTH2), but the fixed "T" suffix sets both thresholds to 3.075V. For lower-voltage rails, select a variant with appropriate suffix (e.g., "W" = 1.665V).
What is the function of Pin 6 (NC) on the MAX6722UTVDD3?
Pin 6 on the MAX6722UTVDD3 is a no-connect (NC) terminal - internally unconnected and electrically isolated. It must be left floating in the PCB layout; tying it to GND or VCC is permissible per Maxim's design recommendations but provides no functional benefit and should follow standard SOT23 thermal and mechanical guidelines.
How does the MAX6722UTVDD3 ensure reset validity during severe brownout conditions?
The MAX6722UTVDD3 guarantees correct reset output logic state even when VCC1 or VCC2 drops to 0.8V - verified across temperature and process corners. This is achieved through proprietary low-voltage biasing and comparator design, eliminating the need for external pulldown resistors or auxiliary supervision circuits typically required below 1.0V operation.
MAX6722UTVDD3 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:
- 0.788V, 1.575V
- 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
MAX6722UTVDD3 FAQ
1.How can I place an order for MAX6722UTVDD3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6722UTVDD3 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 MAX6722UTVDD3 reliable?
The price and inventory of MAX6722UTVDD3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6722UTVDD3 is usually 5 days.
3.What payment methods are accepted for MAX6722UTVDD3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6722UTVDD3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6722UTVDD3?
MAX6722UTVDD3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6722UTVDD3 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 MAX6722UTVDD3?
For technical support, including MAX6722UTVDD3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6722UTVDD3 requirements.
6.How does Aetrix verify that MAX6722UTVDD3 is sourced from the original manufacturer or authorized distributors?
All MAX6722UTVDD3 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 MAX6722UTVDD3 meets industry standards.
7.What is the process for return or replacement of MAX6722UTVDD3?
All MAX6722UTVDD3 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6722UTVDD3, 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 MAX6722UTVDD3 part is unused and in its original packaging.
Return procedure for MAX6722UTVDD3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6722UTVDD3 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…
