My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX6722AUTSYD3+
- Part No.:
- MAX6722AUTSYD3+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- -
- Datasheet:
-
MAX6722AUTSYD3+.pdf
- Description:
- MAX6722AUTSYD3+
- Quantity:
- Payment:
- Shipping:
Inventory:2,200
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX6722AUTSYD3+ from Maxim Integrated is a dual-supply ultra-low-voltage microprocessor supervisory circuit in SOT23-6 package, monitoring VCC1 (primary) and VCC2 (secondary) with factory-trimmed reset thresholds of 4.625V (VTH1) and 3.075V (VTH2), 280ms minimum reset timeout, push-pull active-low RST output, and manual-reset input. It ensures reliable system boot and brownout recovery in multivoltage embedded power rails.
For engineers reviewing the MAX6722AUTSYD3+ datasheet, MAX6722AUTSYD3+ pinout, MAX6722AUTSYD3+ application, or MAX6722AUTSYD3+ equivalent, key selection criteria include dual-supply threshold accuracy (±1.5% over -40°C to +125°C), guaranteed reset validity down to VCC1/VCC2 = 0.8V, low 15µA typical supply current at 3.6V, immunity to sub-20µs VCC transients, and compatibility with manual-reset and watchdog-free designs.
Technical Context
The MAX6722AUTSYD3+ integrates two independent voltage comparators with internal 1.25V reference and precision resistor dividers to generate factory-set thresholds for VCC1 and VCC2. Its reset logic asserts RST low when either supply falls below its threshold and holds it for a fixed 280ms (min) timeout after both supplies recover - no external capacitor required.
This variant includes MR (manual-reset) input with internal 50kΩ pullup to VCC1 and push-pull RST referenced to VCC1, but excludes RSTIN, WDI, PFI/PFO, and watchdog functionality - confirmed by suffix "Y" (dual-supply, MR, push-pull RST, 280ms timeout) per Maxim's Selector Guide and Ordering Information.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Reset Threshold | 4.625V (typ), ±1.5% over full temperature range - sets precise brownout detection for primary 5V/3.3V rails |
| VCC2 Reset Threshold | 3.075V (typ), ±1.5% - enables accurate monitoring of secondary 3.3V/2.5V supplies without external components |
| Reset Timeout Period | 280ms (min), fixed - ensures sufficient hold time for μP initialization without timing-critical external RC networks |
| Supply Current | 15µA (typ) at 3.6V - supports battery-backed or low-power always-on supervision with negligible quiescent load |
| Operating Temperature | -40°C to +125°C - qualified for automotive under-hood, industrial control, and telecom infrastructure environments |
| Reset Output Type | Push-pull active-low RST - eliminates need for external pullup and provides rail-to-rail drive into μP reset pin |
| Minimum Valid VCC | 0.8V on VCC1 or VCC2 - guarantees correct reset assertion during deep brownout or partial power loss |
Pinout & Package
SOT23-6 package (package code U6+1), 1.6mm × 2.9mm footprint, 1.1mm height, thermal resistance θJA = 115°C/W (multilayer board).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RST | Active-low push-pull reset output referenced to VCC1 - drives μP reset pin directly without pullup resistor |
| 2 | GND | System ground reference for all comparators, timers, and output drivers |
| 3 | MR | Active-low manual-reset input with internal 50kΩ pullup to VCC1 - momentary switch to GND initiates system reset |
| 4 | VCC2 | Secondary supply input (0.9V–3.3V range) - powers internal circuitry and enables VCC2 threshold monitoring |
| 5 | VCC1 | Primary supply input (1.8V–5.0V range) - powers device core and defines RST output voltage levels |
| 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 VCC1 and VCC2 supervision with separate factory-trimmed thresholds avoids cascaded failure modes |
| Fixed 280ms reset timeout | Eliminates timing uncertainty and external component count vs. RC-based supervisors |
| Push-pull RST output | Drives μP reset pin directly with rail-to-rail swing - no external pullup needed, reduces BOM and layout area |
| Guaranteed operation down to 0.8V | Ensures valid reset assertion during severe brownout - critical for fail-safe shutdown in automotive and industrial systems |
| Manual-reset input with internal pullup | Enables field service reset via simple SPST switch; no external biasing required |
Applications
| Industrial PLC Power Sequencing | Automotive ADAS Camera Module |
|---|---|
|
Use Scenario: Dual-rail power-up sequencing for FPGA, DSP, and analog front-end in programmable logic controllers. IC Role / Device Role / Timing Role: Supervises 3.3V I/O and 1.2V core rails; asserts reset until both stabilize for ≥280ms. Use Value: Prevents configuration lockup by ensuring FPGA completes bitstream loading before releasing reset. |
Use Scenario: Reliable boot and fault recovery in vision processing units powered by 5V main and 1.8V sensor rails. IC Role / Device Role / Timing Role: Monitors camera sensor supply (VCC2 = 1.8V) and SoC I/O rail (VCC1 = 3.3V); triggers reset on undervoltage. Use Value: Eliminates image corruption during cold crank by holding reset until stable power is confirmed. |
| Telecom Line Card Management | Medical Infusion Pump Controller |
|
Use Scenario: Redundant power supervision across hot-swap 12V-to-3.3V and 5V DC-DC outputs in carrier-grade line cards. IC Role / Device Role / Timing Role: Detects dropout on either secondary rail (VCC2) or primary rail (VCC1); maintains reset for fixed 280ms. Use Value: Enables graceful failover to backup power without software intervention or data loss. |
Use Scenario: Safety-critical power validation for ARM Cortex-M7 controller and motor driver ICs in battery-powered infusion devices. IC Role / Device Role / Timing Role: Validates 3.3V MCU rail (VCC1) and 5V motor driver rail (VCC2); asserts reset if either drops below threshold. Use Value: Meets IEC 62304 Class C requirements by guaranteeing reset assertion during brownout down to 0.8V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-supply supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6721AUTSYD3+ | Identical pinout and electrical specs, but open-drain RST output requiring external pullup | Suitable where μP reset pin tolerates open-drain drive or level-shifting is needed | Select when interfacing to bidirectional reset pins or mixed-voltage systems requiring flexible reset polarity |
| TLV809K33DBZR | Single-supply (3.3V only), SOT23-3, 200ms timeout, no MR input, higher 24µA ICC | Limited to single-rail monitoring; lacks manual reset and dual-supply capability | Choose only for cost-sensitive, space-constrained designs with single 3.3V rail and no field-service requirement |
Compared with MAX6722AUTSYD3+, MAX6721AUTSYD3+ offers identical supervision logic but requires external pullup for RST, while TLV809K33DBZR reduces footprint and cost at the expense of dual-rail support, manual reset, and low-current operation - making MAX6722AUTSYD3+ optimal for robust multivoltage systems demanding guaranteed reset integrity.
Availability
MAX6722AUTSYD3+ is available at Aetrix Electronics and suitable for industrial PLCs, automotive ADAS modules, telecom line cards, medical infusion pumps, and set-top boxes requiring stable component supply across extended temperature and long product lifecycles.
Supply support for MAX6722AUTSYD3+ 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 high-performance analog and mixed-signal ICs for power, sensing, and interface applications in automotive, industrial, and communications markets.
The MAX6715A–MAX6729A family delivers compact, ultra-low-voltage supervisory circuits optimized for multirail embedded systems where reliability, small size, and guaranteed reset behavior under brownout are mandatory.
FAQ
What is the exact reset threshold voltage for VCC1 and VCC2 on the MAX6722AUTSYD3+?
The MAX6722AUTSYD3+ has factory-trimmed reset thresholds of 4.625V (typ, ±1.5%) for VCC1 and 3.075V (typ, ±1.5%) for VCC2, as defined by the "S" and "T" suffixes in its ordering code per Maxim's Reset Voltage Threshold Suffix Guide. These values are guaranteed over -40°C to +125°C and require no external calibration.
Does the MAX6722AUTSYD3+ include a watchdog timer or power-fail input?
No, the MAX6722AUTSYD3+ does not include watchdog timer (WDI), power-fail input (PFI), or power-fail output (PFO) functionality. Its suffix "Y" explicitly denotes dual-supply monitoring with manual reset and push-pull RST only - confirmed by Maxim's Selector Guide and functional diagram for this variant.
What is the reset timeout period of the MAX6722AUTSYD3+ and is it adjustable?
The MAX6722AUTSYD3+ provides a fixed 280ms minimum reset timeout period (suffix "D3"), which is internally generated and non-adjustable. This eliminates timing uncertainty and external component dependencies, ensuring consistent reset hold time across voltage, temperature, and process variations.
Can the MAX6722AUTSYD3+ operate with VCC1 = 2.5V and VCC2 = 1.8V?
Yes, the MAX6722AUTSYD3+ operates with VCC1 from 1.8V to 5.0V and VCC2 from 0.9V to 3.3V. At VCC1 = 2.5V and VCC2 = 1.8V, it maintains valid reset output logic, draws ≤28µA supply current (ICC1), and guarantees reset assertion if either supply falls below its trimmed threshold - fully supported per Electrical Characteristics table.
What package type and pin count does the MAX6722AUTSYD3+ use?
The MAX6722AUTSYD3+ uses a 6-pin SOT23 package (outline 21-0058, land pattern 90-0175, package code U6+1), with pins assigned as RST, GND, MR, VCC2, VCC1, and NC. This compact 1.6mm × 2.9mm footprint supports high-density PCB layouts in space-constrained applications.
MAX6722AUTSYD3+ 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:
- -
MAX6722AUTSYD3+ FAQ
1.How can I place an order for MAX6722AUTSYD3+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6722AUTSYD3+ 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 MAX6722AUTSYD3+ reliable?
The price and inventory of MAX6722AUTSYD3+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6722AUTSYD3+ is usually 5 days.
3.What payment methods are accepted for MAX6722AUTSYD3+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6722AUTSYD3+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6722AUTSYD3+?
MAX6722AUTSYD3+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6722AUTSYD3+ 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 MAX6722AUTSYD3+?
For technical support, including MAX6722AUTSYD3+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6722AUTSYD3+ requirements.
6.How does Aetrix verify that MAX6722AUTSYD3+ is sourced from the original manufacturer or authorized distributors?
All MAX6722AUTSYD3+ 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 MAX6722AUTSYD3+ meets industry standards.
7.What is the process for return or replacement of MAX6722AUTSYD3+?
All MAX6722AUTSYD3+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6722AUTSYD3+, 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 MAX6722AUTSYD3+ part is unused and in its original packaging.
Return procedure for MAX6722AUTSYD3+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6722AUTSYD3+ 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…
