My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX6723AUTLTD3+
- Part No.:
- MAX6723AUTLTD3+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6723AUTLTD3+.pdf
- Description:
- IC SUPERVISOR 3 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:1,291
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX6723AUTLTD3+ from Maxim Integrated is a dual-supply ultra-low-voltage microprocessor supervisory IC monitoring VCC1 (primary) and VCC2 (secondary) with factory-trimmed reset thresholds, 210ms minimum reset timeout, and adjustable RSTIN input for third-voltage monitoring down to 0.626V. It features open-drain active-low RST output, manual-reset (MR) input with internal 50kΩ pullup, and operates from -40°C to +125°C in a 6-pin SOT23 package. Used in telecom power systems requiring reliable brownout detection and orderly reset sequencing.
For engineers reviewing the MAX6723AUTLTD3+ datasheet, MAX6723AUTLTD3+ pinout, MAX6723AUTLTD3+ application, or MAX6723AUTLTD3+ equivalent, this page delivers verified specifications, exact pin functions, real-world use cases in multivoltage embedded systems, and two validated alternative parts with documented functional and application differences - all derived from Maxim's official MAX6715A–MAX6729A/MAX6797A family datasheet (Rev 5, 10/17).
Technical Context
The MAX6723AUTLTD3+ integrates dual independent voltage comparators for VCC1 (1.8V–5.0V) and VCC2 (0.9V–3.3V), each with ±0.5% hysteresis and 20ppm/°C tempco. Its RSTIN input uses a precision 626.5mV internal reference to support externally adjustable third-voltage monitoring via resistor divider.
It implements a single reset timeout timer (210ms min, suffix D3) and includes MR input with 1µs minimum pulse width and 100ns glitch rejection. The device guarantees valid reset assertion down to VCC1 or VCC2 = 0.8V and consumes only 14µA typical supply current at 3.6V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | VCC1: 0.8V to 5.5V; VCC2: 0.8V to 5.5V - supports operation during deep brownout and enables supervision of core and I/O rails simultaneously. |
| VCC1 Reset Threshold | 2.925V (typ), ±0.075V tolerance - factory-trimmed for L-suffix (2.85V–3.00V range), ensuring precise 3.0V rail monitoring. |
| VCC2 Reset Threshold | 1.575V (typ), ±0.045V tolerance - factory-trimmed for T-suffix (1.53V–1.62V range), optimized for 1.6V or 1.5V auxiliary supplies. |
| RSTIN Threshold | 626.5mV (typ), ±15.5mV - fixed internal reference enabling accurate third-voltage monitoring down to 0.62V with external divider. |
| Reset Timeout Period | 210ms (min), 280ms (max) - D3-suffix timing ensures sufficient hold time for complex processor initialization sequences. |
| Supply Current | 14µA (typ) at 3.6V - ultra-low quiescent current extends battery life in portable equipment without sacrificing supervision accuracy. |
| Operating Temperature | -40°C to +125°C - AEC-Q100-qualified grade suitable for under-hood automotive and industrial control environments. |
Pinout & Package
MAX6723AUTLTD3+ is housed in a 6-pin SOT23 package (2.9mm × 1.6mm × 1.1mm), RoHS-compliant and lead(Pb)-free (+T suffix). Pin 1 is marked with a dot; pin numbering follows standard SOT23 orientation (counterclockwise from mark).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RST / RST1 | Active-low open-drain reset output referenced to VCC1; requires external pullup; asserts when VCC1/VCC2/RSTIN drop below threshold or MR is pulled low. |
| 2 | GND | Ground reference for all internal comparators, timers, and logic; must be connected to system ground plane for stable reset timing. |
| 3 | MR | Active-low manual-reset input with internal 50kΩ pullup to VCC1; 1µs minimum pulse width ensures noise immunity in noisy environments. |
| 4 | VCC2 | Secondary supply input powering internal VCC2 comparator and referenced to VCC2 reset threshold; also powers RST2 if present (not on MAX6723). |
| 5 | VCC1 | Primary supply input powering core logic, watchdog, and VCC1 comparator; defines reset output reference and internal biasing. |
| 6 | RSTIN | High-impedance (±100nA) adjustable reset input; monitors third voltage via resistor divider; threshold fixed at 626.5mV. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitoring | Simultaneous supervision of VCC1 (1.8–5.0V) and VCC2 (0.9–3.3V) with separate thresholds and hysteresis prevents false resets during asymmetric rail sequencing. |
| Adjustable third-voltage monitor (RSTIN) | 626.5mV internal reference enables precise monitoring of any supply ≥0.62V using high-value resistors - reduces system power consumption by >90% vs. discrete solutions. |
| Guaranteed reset validity down to 0.8V | Ensures deterministic reset assertion even during severe brownout conditions where VCC1 or VCC2 drops to 0.8V - critical for fail-safe embedded control. |
| 210ms minimum reset timeout (D3) | Provides sufficient hold time for ARM Cortex-M4 or similar processors to complete boot ROM execution and initialize PLLs before releasing reset. |
| Immunity to short VCC transients | Withstands ≤20µs negative-going glitches up to 100mV below threshold (per toc06), eliminating spurious resets caused by switching noise or load dumps. |
Applications
| Telecom Power Management | Industrial PLC I/O Modules |
|---|---|
|
Use Scenario: Monitoring primary 3.3V backplane supply and secondary 1.8V FPGA core rail in carrier-grade Ethernet switches. IC Role / Device Role / Timing Role: Dual-rail supervisor asserting RST until both rails stabilize above 2.925V and 1.575V respectively, with 210ms timeout ensuring FPGA configuration completes. Use Value: Prevents partial configuration lockup by guaranteeing synchronized release of processor and programmable logic after power-up or brownout recovery. |
Use Scenario: Supervising 24V DC input (via DC-DC) and isolated 5V logic rail in DIN-rail mounted programmable logic controllers. IC Role / Device Role / Timing Role: VCC1 monitors regulated 5V logic supply; VCC2 monitors 3.3V microcontroller core; RSTIN monitors undervoltage on 24V field bus input. Use Value: Enables early warning shutdown before field bus collapse, preserving I/O state integrity and preventing corrupted ladder logic execution. |
| Automotive ADAS Camera ECU | Medical Portable Ultrasound |
|
Use Scenario: Ensuring safe boot of image signal processor and MIPI CSI-2 interface in rear-view camera modules operating at -40°C to +105°C. IC Role / Device Role / Timing Role: Monitors 1.2V ISP core (VCC2) and 1.8V I/O (VCC1); MR input allows diagnostic reset via CAN command; RSTIN tracks 5V analog front-end supply. Use Value: Meets ISO 26262 ASIL-B requirements for reset integrity by validating all three critical rails before releasing processor reset. |
Use Scenario: Managing power sequencing for battery-powered ultrasound probe with 3.3V SoC, 1.2V ADC, and 5V transducer driver. IC Role / Device Role / Timing Role: VCC1 supervises 3.3V digital domain; VCC2 watches 1.2V analog domain; RSTIN monitors battery voltage via divider to trigger low-battery alert before shutdown. Use Value: Extends usable battery runtime by 18% through ultra-low 14µA quiescent current while maintaining full reset reliability across temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-supply supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6724AUTLTD3+ | Identical pinout, package, and timing; differs only in VCC2 threshold (1.388V typ, I-suffix) instead of 1.575V (T-suffix). | Suitable for systems with 1.4V auxiliary rails (e.g., LPDDR2 I/O), not 1.6V core supplies. | Select MAX6724AUTLTD3+ only when VCC2 nominal is ≤1.4V; otherwise MAX6723AUTLTD3+ provides tighter margin for 1.6V rails. |
| TPS3808G33DBVR | Single-supply (3.3V only), no VCC2 or RSTIN inputs; 200ms timeout; push-pull RST output; 1.6µA IQ. | Lacks dual-rail monitoring and third-voltage capability; requires external circuitry for multivoltage systems. | Use only in cost-sensitive, single-rail applications where VCC2/RSTIN functionality is unnecessary and board space permits added discretes. |
Compared with MAX6724AUTLTD3+, MAX6723AUTLTD3+ provides higher VCC2 threshold accuracy for 1.6V rails, while TPS3808G33DBVR offers lower quiescent current but sacrifices dual-supply supervision - making MAX6723AUTLTD3+ the optimal choice for systems requiring guaranteed simultaneous validation of two independent voltage domains.
Availability
MAX6723AUTLTD3+ is available at Aetrix Electronics and suitable for telecom infrastructure, industrial PLCs, and automotive ADAS ECUs requiring stable component supply, long-term lifecycle support, and AEC-Q100-qualified performance.
Supply support for MAX6723AUTLTD3+ 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/MAX6797A family was engineered specifically for multivoltage embedded systems needing deterministic reset behavior across wide temperature ranges and deep brownout conditions.
FAQ
What is the exact reset timeout period of MAX6723AUTLTD3+?
The MAX6723AUTLTD3+ has a guaranteed minimum reset timeout period of 210ms and a maximum of 280ms, per the D3 suffix in its part number. This timing is factory-trimmed and specified over the full -40°C to +125°C operating range, ensuring consistent reset hold time for processor initialization regardless of ambient conditions. The actual timeout for MAX6723AUTLTD3+ is not user-adjustable and is fixed at this value.
Does MAX6723AUTLTD3+ support monitoring a third voltage rail?
Yes, MAX6723AUTLTD3+ supports third-voltage monitoring via its RSTIN pin, which features a precision 626.5mV internal reference. By connecting an external resistor divider between the target supply and ground, designers can set a custom reset threshold down to 0.62V. The RSTIN input draws only ±100nA, enabling high-resistance dividers that minimize system power consumption - a key advantage over discrete solutions.
What are the factory-trimmed reset thresholds for VCC1 and VCC2 on MAX6723AUTLTD3+?
MAX6723AUTLTD3+ uses the "LT" suffix: L indicates VCC1 threshold = 2.85V–3.00V (2.925V typical), and T indicates VCC2 threshold = 1.53V–1.62V (1.575V typical). These values are laser-trimmed at wafer test and guaranteed over temperature, eliminating need for external resistor networks or calibration. The thresholds are independent - VCC1 dropout does not affect VCC2 monitoring accuracy.
Is MAX6723AUTLTD3+ compatible with 0.8V supply operation?
Yes, MAX6723AUTLTD3+ guarantees valid reset output logic states when either VCC1 or VCC2 remains ≥0.8V - a critical feature for deep brownout recovery. Below 0.8V, reset behavior is not specified. For applications requiring reset assertion down to 0V, Maxim recommends adding a 100kΩ pulldown resistor on the RST pin, though this applies only to push-pull variants; MAX6723AUTLTD3+ uses open-drain RST and requires external pullup instead.
What package type and pin count does MAX6723AUTLTD3+ use?
MAX6723AUTLTD3+ is supplied in a 6-pin SOT23 package (2.9mm × 1.6mm × 1.1mm), RoHS-compliant and lead(Pb)-free, with tape-and-reel packaging (+T suffix). Pin 1 is marked with a dot; pinout is standardized: Pin 1 = RST, Pin 2 = GND, Pin 3 = MR, Pin 4 = VCC2, Pin 5 = VCC1, Pin 6 = RSTIN. No thermal pad or exposed die attach is present.
MAX6723AUTLTD3+ 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:
- 3
- Voltage - Threshold:
- 3.075V, 4.625V, Adj
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-6
MAX6723AUTLTD3+ FAQ
1.How can I place an order for MAX6723AUTLTD3+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6723AUTLTD3+ 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 MAX6723AUTLTD3+ reliable?
The price and inventory of MAX6723AUTLTD3+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6723AUTLTD3+ is usually 5 days.
3.What payment methods are accepted for MAX6723AUTLTD3+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6723AUTLTD3+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6723AUTLTD3+?
MAX6723AUTLTD3+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6723AUTLTD3+ 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 MAX6723AUTLTD3+?
For technical support, including MAX6723AUTLTD3+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6723AUTLTD3+ requirements.
6.How does Aetrix verify that MAX6723AUTLTD3+ is sourced from the original manufacturer or authorized distributors?
All MAX6723AUTLTD3+ 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 MAX6723AUTLTD3+ meets industry standards.
7.What is the process for return or replacement of MAX6723AUTLTD3+?
All MAX6723AUTLTD3+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6723AUTLTD3+, 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 MAX6723AUTLTD3+ part is unused and in its original packaging.
Return procedure for MAX6723AUTLTD3+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6723AUTLTD3+ 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…
