My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX6722UTYHD3
- Part No.:
- MAX6722UTYHD3
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6722UTYHD3.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:1,150
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
The MAX6722UTYHD3 from Maxim Integrated is a dual-voltage microprocessor supervisory circuit in 8-pin SOT23 package, monitoring primary (VCC1) and secondary (VCC2) supplies with factory-trimmed thresholds of 4.625V and 3.075V respectively, 210ms reset timeout, and push-pull active-low RST output. It guarantees valid reset assertion down to VCC1 or VCC2 = 0.8V and supports manual reset, watchdog timer disable, and immunity to short VCC transients - deployed in telecom power management and industrial embedded controllers.
For engineers reviewing the MAX6722UTYHD3 datasheet, MAX6722UTYHD3 pinout, MAX6722UTYHD3 application, or MAX6722UTYHD3 equivalent, key selection criteria include dual-supply threshold accuracy (±1.5% over -40°C to +125°C), guaranteed operation at ultra-low supply voltage (0.8V), low 14µA typical supply current, and compatibility with bidirectional µP reset I/O via series resistor.
Technical Context
The MAX6722UTYHD3 integrates two independent voltage comparators with hysteresis (0.5% of VTH), a precision 210ms reset timeout timer, and a push-pull RST output referenced to VCC1. Its internal architecture ensures reset assertion remains valid even when either VCC1 or VCC2 drops to 0.8V, enabling robust brownout detection in battery-backed systems.
It features a manual-reset input (MR) with internal 50kΩ pullup to VCC1, glitch rejection (100ns), and 200ns MR-to-reset delay. The device lacks RSTIN, PFI, PFO, and WDI pins - confirming it is a dual-supply-only variant without triple-monitoring or power-fail functionality.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Reset Threshold | 4.625V (factory-trimmed, ±1.5% over temp; monitors main system rail) |
| VCC2 Reset Threshold | 3.075V (factory-trimmed, ±1.5% over temp; monitors I/O or auxiliary rail) |
| Reset Timeout Period | 210ms (min); ensures µP completes boot sequence before release) |
| Supply Current | 14µA (typ at 3.6V); enables use in always-on, low-power monitoring nodes) |
| Operating Temperature | -40°C to +125°C; qualified for under-hood automotive and industrial control environments) |
| Reset Output Type | Push-pull active-low RST; eliminates need for external pullup and drives µP reset directly) |
| Valid Reset Down To | VCC1 or VCC2 ≥ 0.8V; supports deep brownout detection without external support circuitry) |
Pinout & Package
MAX6722UTYHD3 is housed in an 8-pin SOT23 package (3.0mm × 1.7mm × 1.3mm height), RoHS-compliant and tape-and-reel packaged. Pin functions are validated per Maxim's official pin configuration table for MAX6722A variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RST | Active-low push-pull reset output; asserts low on VCC1/VCC2 undervoltage and holds for 210ms after recovery |
| 2 | GND | System ground reference for all internal comparators and timers |
| 3 | MR | Active-low manual-reset input; internal 50kΩ pullup to VCC1; 200ns delay to RST assertion |
| 4 | VCC2 | Secondary supply input (3.075V threshold monitor); powers internal VCC2 comparator path |
| 5 | VCC1 | Primary supply input (4.625V threshold monitor); powers core logic and RST output stage |
| 6 | NC | No connect - internally unconnected; must be left floating or tied to GND per layout guidelines |
| 7 | NC | No connect - internally unconnected; must be left floating or tied to GND per layout guidelines |
| 8 | NC | No connect - internally unconnected; must be left floating or tied to GND per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitoring | Simultaneous VCC1 (4.625V) and VCC2 (3.075V) supervision with separate comparators and hysteresis |
| Guaranteed reset validity at 0.8V | Ensures deterministic reset behavior during deep brownout - no external support needed below 1.0V |
| Low quiescent current | 14µA typical at 3.6V enables >10-year battery life in backup-supervised systems |
| Immunity to VCC transients | Rejects <100ns glitches at up to 100mV overdrive - eliminates spurious resets in noisy power rails |
| Push-pull RST output | Drives µP reset pin directly without pullup resistor; compatible with bidirectional reset I/O via 4.7kΩ series resistor |
Applications
| Telecom Power Sequencing | Industrial PLC Controller |
|---|---|
Use Scenario: Monitors 48V DC-DC converter output (VCC1) and isolated 3.3V I/O rail (VCC2) in remote radio units. IC Role / Device Role / Timing Role: Dual-supply supervisor asserting reset if either rail drops below spec during hot-swap or load transient. Use Value: Prevents firmware corruption by holding µP in reset until both rails stabilize post-power-up (210ms timeout). |
Use Scenario: Supervises 5V main CPU supply and 3.3V FPGA configuration rail in modular I/O chassis. IC Role / Device Role / Timing Role: Ensures deterministic boot order and prevents partial initialization due to asymmetric rail ramp rates. Use Value: Guarantees reset remains asserted until both rails exceed 4.625V and 3.075V respectively - critical for FPGA configuration integrity. |
| Automotive Body Control Module | Medical Infusion Pump |
Use Scenario: Monitors 5V microcontroller supply and 3.3V sensor interface rail in under-hood BCM with wide ambient temperature swing. IC Role / Device Role / Timing Role: Provides fail-safe reset across -40°C to +125°C with no calibration drift (20ppm/°C tempco). Use Value: Eliminates need for external voltage references or trimming components - reduces BOM count and qualification effort. |
Use Scenario: Supervises 3.3V MCU supply and 2.5V analog front-end rail in battery-powered infusion pump with strict safety-critical uptime requirements. IC Role / Device Role / Timing Role: Detects brownout conditions as low as 0.8V on either rail to trigger controlled shutdown before data loss. Use Value: Enables safe state retention and EEPROM write completion during power collapse - meets IEC 62304 Class C requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-supply supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6326UR29D3-T | Single-supply (2.93V threshold), 200ms timeout, SOT23-5; no VCC2 monitoring | Only suitable where only one rail requires supervision - cannot replace dual-threshold function | Select only if system has single critical rail and board space is constrained (5-pin vs 8-pin) |
| TPS3808G33DBVR | Single-supply (3.3V), 200ms timeout, SOT23-6; higher ICC (22µA typ), no 0.8V guarantee | Lacks dual-rail capability and ultra-low-voltage reset validity - unsuitable for deep brownout detection | Consider only for cost-sensitive consumer designs where 0.8V operation and dual monitoring are not required |
Compared with MAX6722UTYHD3, MAX6326UR29D3-T reduces footprint but sacrifices dual-supply coverage, while TPS3808G33DBVR offers TI ecosystem alignment but fails to meet the 0.8V reset validity and dual-threshold precision required in industrial and automotive applications.
Availability
MAX6722UTYHD3 is available at Aetrix Electronics and suitable for telecom power sequencing, industrial PLC controllers, and automotive body control modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6722UTYHD3 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 supervisory circuits optimized for dual/triple-rail monitoring in space-constrained, high-reliability systems - with emphasis on guaranteed operation down to 0.8V and minimal quiescent current.
FAQ
What is the exact reset threshold voltage for VCC1 and VCC2 on the MAX6722UTYHD3?
The MAX6722UTYHD3 has factory-trimmed reset thresholds of 4.625V for VCC1 and 3.075V for VCC2, with ±1.5% tolerance over -40°C to +125°C. These values are fixed by the "TY" suffix in the part number and confirmed in Maxim's Reset Voltage Threshold Suffix Guide. No external adjustment is possible - the device does not include RSTIN or PFI inputs.
Does the MAX6722UTYHD3 support watchdog timer functionality?
No, the MAX6722UTYHD3 does not include watchdog timer functionality. It is a dual-supply-only supervisor without WDI pin or internal watchdog circuitry. Watchdog capability is present only in MAX6721A–MAX6729A/MAX6797A variants with "W" or "WD" suffixes - the MAX6722UTYHD3 pinout omits WDI entirely.
Can the MAX6722UTYHD3 monitor a third voltage rail?
No, the MAX6722UTYHD3 cannot monitor a third voltage. It is strictly a dual-supply supervisor with dedicated VCC1 and VCC2 inputs only. Variants supporting triple monitoring (e.g., MAX6723A–MAX6727A) include RSTIN pin and "RSTIN" in their feature list - absent in MAX6722UTYHD3's pin configuration and ordering guide.
What is the meaning of the "D3" suffix in MAX6722UTYHD3?
The "D3" suffix in MAX6722UTYHD3 specifies a 210ms minimum reset timeout period, per Maxim's Reset Timeout Period Suffix Guide. This value is factory-programmed and non-adjustable. The timeout begins when reset is asserted and ensures µP completes initialization before release - critical for reliable boot in complex embedded systems.
Is the MAX6722UTYHD3 pin-compatible with other MAX67xx devices in SOT23-8?
No - MAX6722UTYHD3 is not universally pin-compatible across the MAX67xx SOT23-8 family. While it shares the same 8-pin SOT23 package, pins 6–8 are NC (no connect) in this variant, whereas devices like MAX6728A/MAX6729A use those pins for PFI, PFO, and RSTIN. Direct replacement requires verifying pin function mapping per datasheet.
MAX6722UTYHD3 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, 2.188V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active Low
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-6
MAX6722UTYHD3 FAQ
1.How can I place an order for MAX6722UTYHD3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6722UTYHD3 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 MAX6722UTYHD3 reliable?
The price and inventory of MAX6722UTYHD3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6722UTYHD3 is usually 5 days.
3.What payment methods are accepted for MAX6722UTYHD3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6722UTYHD3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6722UTYHD3?
MAX6722UTYHD3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6722UTYHD3 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 MAX6722UTYHD3?
For technical support, including MAX6722UTYHD3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6722UTYHD3 requirements.
6.How does Aetrix verify that MAX6722UTYHD3 is sourced from the original manufacturer or authorized distributors?
All MAX6722UTYHD3 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 MAX6722UTYHD3 meets industry standards.
7.What is the process for return or replacement of MAX6722UTYHD3?
All MAX6722UTYHD3 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6722UTYHD3, 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 MAX6722UTYHD3 part is unused and in its original packaging.
Return procedure for MAX6722UTYHD3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6722UTYHD3 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…
