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Analog Devices Inc./Maxim Integrated MAX6806XR23-T
- Part No.:
- MAX6806XR23-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX6806XR23-T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:7,500
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Product details
Overview
MAX6806XR23-T from Maxim Integrated is a precision voltage detector IC designed for reliable power-supply monitoring in microprocessor-based systems. It features a factory-preset 2.3V ±2% reset threshold, active-low push-pull RESET output, and guaranteed operation down to VCC = 1.0V - enabling robust brownout detection in battery-powered instrumentation and portable equipment.
For engineers reviewing the MAX6806XR23-T datasheet, MAX6806XR23-T pinout, MAX6806XR23-T application, or MAX6806XR23-T equivalent, this device serves as a low-power (35µA typical), miniature (3-pin SC70), single-supply voltage supervisor with hysteresis, manual-reset capability (in SOT143 variants), and immunity to fast VCC transients up to 100V/µs.
Technical Context
The MAX6806XR23-T implements a precision bandgap-based voltage reference and comparator with internal hysteresis (VHYST = 0.02–0.03 × VTH−), ensuring stable reset assertion/deassertion during supply ramp-up and brownout events. Its push-pull output drives logic-level RESET directly without external pullup components.
It operates across −40°C to +85°C with supply current tightly specified from 1.0V to 5.5V, and its reset delay is ≤30µs under 1mV/µs VCC fall rate. The device is immune to negative-going VCC transients up to 100V/µs, validated per Figure 3 of the datasheet.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.30V ±2% (VTH− at +25°C); ensures accurate detection before system ICs drop below minimum operating voltage. |
| Supply Voltage Range | 1.0V to 5.5V; supports operation during deep brownout and full-system power-up sequencing. |
| Supply Current | 35µA typical at VCC = 3.6V; enables multi-year battery life in portable instrumentation. |
| RESET Output Type | Active-low, push-pull; eliminates need for external pullup resistor and guarantees defined logic state. |
| Hysteresis | 0.02–0.03 × VTH−; prevents output chatter near threshold during slow or noisy VCC transitions. |
| Reset Delay | ≤30µs (VCC falling at 1mV/µs); provides fast response to supply collapse without false triggering. |
| Tempco | 30ppm/°C; maintains threshold stability over industrial temperature range. |
Pinout & Package
MAX6806XR23-T is housed in a 3-pin SC70 package (outline 21-0075), with pin 1 = RESET (active-low push-pull), pin 2 = GND, pin 3 = VCC. No manual reset (MR) input is present in this variant.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RESET | Active-low push-pull output; sinks current when VCC < 2.3V; valid down to VCC = 1.0V. |
| 2 | GND | Ground reference for internal comparator and output stage; must be low-impedance. |
| 3 | VCC | Supply input; accepts 1.0V–5.5V; internally powers reference, comparator, and output driver. |
Key Features
| Feature | Design Value |
|---|---|
| Precision Reset Threshold | 2.3V ±2% accuracy over −40°C to +85°C ensures compliance with 2.5V ±10% system supply tolerances. |
| Ultra-Low Supply Current | 35µA typical enables use in always-on battery-backed monitoring without significant drain. |
| Push-Pull RESET Output | Eliminates external pullup components and guarantees rail-to-rail logic levels across full VCC range. |
| Transient Immunity | Immune to VCC transients up to 100V/µs, reducing need for additional filtering in noisy environments. |
| Guaranteed Operation Down to 1.0V | Ensures valid reset assertion even during deep brownout or partial power loss conditions. |
Applications
| Portable Battery-Powered Equipment | Intelligent Instruments |
|---|---|
Use Scenario: Handheld barcode scanners and portable data loggers operating from single-cell Li-ion or alkaline batteries. IC Role / Device Role / Timing Role: Voltage supervisor asserting system reset when battery voltage drops below 2.3V to prevent corrupted memory writes or erratic MCU behavior. Use Value: Prevents data corruption by guaranteeing clean reset before supply falls below 2.5V system minimum, leveraging 2.3V ±2% threshold and 30µs response. |
Use Scenario: Digital multimeters and handheld oscilloscopes requiring reliable startup and brownout recovery. IC Role / Device Role / Timing Role: Precision reset generator that initiates controlled firmware initialization upon power-up and detects marginal supply conditions during measurement cycles. Use Value: Enables deterministic boot sequence and avoids lockup during intermittent battery contact or low-voltage probing, using 1.0V operational floor and hysteresis. |
| Critical µP and µC Systems | Power Monitoring in Embedded Controllers |
Use Scenario: Industrial PLC I/O modules and safety-critical microcontroller subsystems where uncontrolled resets are unacceptable. IC Role / Device Role / Timing Role: Primary power-fail detector feeding dedicated reset input on ARM Cortex-M or PIC microcontrollers. Use Value: Delivers sub-30µs reset assertion with ±2% threshold accuracy, meeting IEC 61508 functional safety timing constraints for fail-safe shutdown. |
Use Scenario: HVAC controllers and smart energy meters monitoring 3.3V or 5V rails derived from switching regulators. IC Role / Device Role / Timing Role: Standalone voltage monitor providing early warning and hard reset when DC-DC output drifts or fails. Use Value: Provides immunity to regulator ripple and transient noise via internal hysteresis and 100V/µs slew-rate tolerance, eliminating false resets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6806UR23-T | Same 2.3V threshold, ±2% accuracy, and push-pull output; differs only in 3-pin SOT23 package (vs. SC70). | SOT23 offers slightly larger footprint and higher thermal mass; suitable where board space allows and reflow compatibility with legacy SOT23 tooling is required. | Select MAX6806UR23-T if SOT23 mechanical handling or thermal performance is preferred over SC70 miniaturization. |
| TLV803EB23DBZR | 2.32V threshold (±1.5%), 350nA quiescent current, open-drain output; lacks push-pull drive and requires external pullup. | Lower power but higher external component count; not drop-in due to output topology and different reset timing behavior. | Choose TLV803EB23DBZR only when ultra-low current (<1µA) dominates over simplicity and drive strength. |
Compared with MAX6806UR23-T, the MAX6806XR23-T offers identical electrical performance in a smaller SC70 package, while TLV803EB23DBZR trades push-pull drive and ease of use for nanoscale quiescent current - making MAX6806XR23-T optimal for space-constrained, low-component-count designs needing guaranteed 1.0V operation.
Availability
MAX6806XR23-T is available at Aetrix Electronics and suitable for portable/battery-powered equipment, intelligent instruments, critical µP/µC systems, and embedded power monitoring applications requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.
Supply support for MAX6806XR23-T 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 semiconductor solutions for industrial, communications, computing, and consumer markets.
The MAX6806 family delivers precision, low-power voltage supervision for microprocessor systems - targeting applications where reliability, small size, and minimal external components are essential.
FAQ
What is the exact reset threshold voltage of the MAX6806XR23-T?
The MAX6806XR23-T has a factory-trimmed nominal reset threshold of 2.30V with ±2% accuracy over −40°C to +85°C (VTH− = 2.254V to 2.346V at +25°C). This value is guaranteed across temperature and supply voltage, enabling precise brownout detection before downstream ICs exit specification.
Does the MAX6806XR23-T support manual reset functionality?
No - the MAX6806XR23-T uses the 3-pin SC70 package, which does not include a manual reset (MR) pin. Manual reset is only available in the 4-pin SOT143 variant (e.g., MAX6806US23-T). The MAX6806XR23-T relies solely on VCC monitoring for reset assertion.
What is the minimum supply voltage at which the MAX6806XR23-T guarantees valid RESET output?
The MAX6806XR23-T guarantees valid active-low RESET output down to VCC = 1.0V. Below 1.0V, the output becomes high-impedance; for applications requiring asserted RESET down to ground, an external pulldown resistor (e.g., 100kΩ) on the RESET pin is recommended.
Can the MAX6806XR23-T replace the MAX6806UR23-T in an existing design?
Yes - the MAX6806XR23-T and MAX6806UR23-T share identical electrical specifications, including 2.3V ±2% threshold, 35µA supply current, and active-low push-pull RESET. They differ only in package (SC70 vs. SOT23), so PCB layout and soldering profile must be updated accordingly.
Is the MAX6806XR23-T compatible with 1.8V or 3.3V microcontrollers?
Yes - the MAX6806XR23-T operates from 1.0V to 5.5V and asserts RESET when VCC falls below 2.3V, making it fully compatible with 1.8V and 3.3V µCs. Its push-pull output drives cleanly to GND and VCC, ensuring unambiguous logic levels regardless of host supply voltage.
MAX6806XR23-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 4.6V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active Low
- Reset Timeout:
- 30µs Typical
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-µMAX
MAX6806XR23-T FAQ
1.How can I place an order for MAX6806XR23-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6806XR23-T 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 MAX6806XR23-T reliable?
The price and inventory of MAX6806XR23-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6806XR23-T is usually 5 days.
3.What payment methods are accepted for MAX6806XR23-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6806XR23-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6806XR23-T?
MAX6806XR23-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6806XR23-T 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 MAX6806XR23-T?
For technical support, including MAX6806XR23-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6806XR23-T requirements.
6.How does Aetrix verify that MAX6806XR23-T is sourced from the original manufacturer or authorized distributors?
All MAX6806XR23-T 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 MAX6806XR23-T meets industry standards.
7.What is the process for return or replacement of MAX6806XR23-T?
All MAX6806XR23-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6806XR23-T, 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 MAX6806XR23-T part is unused and in its original packaging.
Return procedure for MAX6806XR23-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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