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Analog Devices Inc./Maxim Integrated MAX6806XR23
- Part No.:
- MAX6806XR23
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX6806XR23.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:1,127
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Product details
Overview
MAX6806XR23 from Maxim Integrated is a precision voltage detector IC designed for 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 reliable brownout detection in battery-powered instrumentation and portable equipment.
For engineers reviewing the MAX6806XR23 datasheet, MAX6806XR23 pinout, MAX6806XR23 application, or MAX6806XR23 equivalent, this device serves as a low-quiescent-current (35µA), hysteresis-equipped supervisory circuit for critical µP power monitoring where precise, stable reset assertion during supply droop is required.
Technical Context
The MAX6806XR23 implements a comparator-based reset architecture with internal hysteresis (VHYST = 0.02–0.03 × VTH−) to prevent output chatter near the 2.3V threshold. Its push-pull output drives logic-level RESET directly without external pull-up components.
It operates across −40°C to +85°C with supply current tightly specified from 1.0V to 5.5V (35µA typ. at 3.6V), and supports manual reset only in SOT143 packages - not applicable to the 3-pin SC70 package of MAX6806XR23.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.30V ±2% (VTH−), factory-trimmed - ensures accurate power-fail detection for 2.5V/3.3V systems |
| Supply Voltage Range | 1.0V to 5.5V - enables valid RESET assertion even during deep brownout conditions |
| Quiescent Current | 35µA typical at VCC = 3.6V - minimizes battery drain in portable equipment |
| Output Type | Active-low, push-pull - drives RESET line directly without external pull-up resistor |
| Hysteresis | 0.02–0.03 × VTH− - prevents oscillation during slow-rising/falling VCC transitions |
| Reset Delay | 30µs typical (VCC falling at 1mV/µs) - provides deterministic timing for µP initialization |
| Operating Temp | −40°C to +85°C - qualified for industrial and embedded instrumentation environments |
Pinout & Package
MAX6806XR23 is housed in a 3-pin SC70 package (X3-2 outline), measuring 2.0mm × 2.1mm × 0.95mm, with moisture sensitivity level (MSL) 1 and RoHS-compliant finish.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RESET | Active-low push-pull output - asserts logic low when VCC < 2.3V; sinks current to ground |
| 2 | GND | Analog ground reference - must be connected to system ground plane for accurate threshold sensing |
| 3 | VCC | Power supply input - monitors this rail; RESET remains asserted until VCC rises above 2.3V + hysteresis |
Key Features
| Feature | Design Value |
|---|---|
| ±2% threshold accuracy | Guaranteed over temperature and voltage - eliminates need for external calibration in 2.5V/3.3V systems |
| No external components | Self-contained reset generation - reduces BOM count and PCB area vs. discrete resistor-divider solutions |
| Immunity to VCC transients | Rejects negative-going spikes ≤100µs (at 100mV overdrive) - avoids false resets in noisy power environments |
| Low supply current | 35µA typical - extends battery life in handheld bar-code scanners and portable instruments |
| Valid RESET to 1.0V | Ensures deterministic reset state during deep discharge - critical for data retention in µP systems |
Applications
| Portable/Battery-Powered Equipment | Intelligent Instruments |
|---|---|
Use Scenario: Monitoring Li-ion battery discharge in handheld test meters and field sensors. IC Role / Device Role / Timing Role: Voltage detector asserting RESET before MCU enters undefined operating region. Use Value: Prevents corrupted memory writes and erratic behavior by guaranteeing clean reset below 2.3V. |
Use Scenario: Power supervision in benchtop multimeters and oscilloscope front-ends. IC Role / Device Role / Timing Role: Precision reset generator synchronized to 3.3V analog/digital supply rails. Use Value: Ensures ADC reference stability and FPGA configuration integrity during power ramp-up. |
| Critical µP and µC Power Monitoring | Bar-Code Scanners |
Use Scenario: Supervising 2.5V core supply in industrial PLC controllers and edge gateways. IC Role / Device Role / Timing Role: Brownout detector triggering controlled shutdown before logic voltage collapse. Use Value: Eliminates watchdog timeout dependency by providing immediate, threshold-based reset assertion. |
Use Scenario: Reset coordination in laser-based barcode readers powered by single-cell alkaline batteries. IC Role / Device Role / Timing Role: Low-voltage supervisor enabling graceful firmware halt before battery cutoff. Use Value: Extends usable battery life by maintaining functional reset down to 1.0V VCC. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage-detection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6315US23D3-T | Same 2.3V threshold, but SOT143 package with manual-reset (MR) input; 50µA max ICC | Requires MR functionality and 4-pin layout - not drop-in for SC70 footprint | Select when system-level manual reset initiation is needed alongside voltage monitoring |
| TPS3808G125DBVR | 2.32V threshold (±0.5%), 1.5µA quiescent current, open-drain output; no hysteresis auto-enable | Lower power but requires external hysteresis network and pull-up - increases design complexity | Prefer for ultra-low-power battery applications where 35µA is unacceptable and board space allows added components |
Compared with MAX6806XR23, the MAX6315US23D3-T adds manual reset capability at the cost of larger package and higher current, while the TPS3808G125DBVR trades simplicity and hysteresis integration for extreme quiescent current reduction - making MAX6806XR23 optimal for compact, component-minimized 2.3V supervision.
Availability
MAX6806XR23 is available at Aetrix Electronics and suitable for portable/battery-powered equipment, intelligent instruments, critical µP and µC power monitoring, and bar-code scanners requiring stable component supply and industrial-temperature qualification.
Supply support for MAX6806XR23 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, mixed-signal, and power-management ICs for industrial, computing, and communications applications.
The MAX6806 family delivers highly accurate, low-power voltage supervision for microprocessor systems - targeting applications where predictable reset behavior under brownout and transient conditions is essential.
FAQ
What is the exact reset threshold voltage of MAX6806XR23?
The MAX6806XR23 has a factory-trimmed nominal reset threshold of 2.30V with ±2% accuracy over temperature and supply voltage. At +25°C, the guaranteed range is 2.254V to 2.346V for VCC falling - ensuring consistent brownout detection in 2.5V and 3.3V systems. This value is laser-trimmed during production and does not require external calibration.
Does MAX6806XR23 support manual reset functionality?
No, MAX6806XR23 does not support manual reset. It is packaged in a 3-pin SC70 configuration (pins: RESET, GND, VCC) with no MR terminal. Manual reset is only available on the 4-pin SOT143 variants (e.g., MAX6806US23-T), which include an internal 80kΩ pulldown on the MR pin. For MAX6806XR23, reset is asserted solely based on VCC crossing the 2.3V threshold.
What is the minimum supply voltage at which MAX6806XR23 guarantees valid RESET output?
MAX6806XR23 guarantees valid active-low RESET output down to VCC = 1.0V. Below this, the output becomes high-impedance. This specification ensures deterministic reset assertion during deep battery discharge - critical for portable devices using single-cell alkaline or Li-ion sources where voltage may sag below 1.2V before shutdown.
Can MAX6806XR23 be used with a 5V microcontroller system?
Yes, MAX6806XR23 is fully compatible with 5V µP systems. Its absolute maximum VCC rating is +6.0V, and its 2.3V threshold provides appropriate undervoltage detection for 5V supplies experiencing brownout or regulation loss. The push-pull RESET output drives standard TTL/CMOS inputs directly, and RESET remains valid throughout the full 1.0V–5.5V operating range.
How does the internal hysteresis of MAX6806XR23 improve system reliability?
The internal hysteresis (0.02–0.03 × VTH−) creates distinct rising (VTH+) and falling (VTH−) trip points - preventing output oscillation when VCC lingers near 2.3V during slow power ramps or noise-induced fluctuations. For MAX6806XR23, this means RESET deasserts cleanly above ~2.35V and reasserts only below ~2.30V, eliminating spurious resets that could corrupt µP boot sequences or data logging.
MAX6806XR23 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 FAQ
1.How can I place an order for MAX6806XR23 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6806XR23 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 reliable?
The price and inventory of MAX6806XR23 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6806XR23 is usually 5 days.
3.What payment methods are accepted for MAX6806XR23?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6806XR23 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6806XR23?
MAX6806XR23 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6806XR23 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?
For technical support, including MAX6806XR23 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6806XR23 requirements.
6.How does Aetrix verify that MAX6806XR23 is sourced from the original manufacturer or authorized distributors?
All MAX6806XR23 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 meets industry standards.
7.What is the process for return or replacement of MAX6806XR23?
All MAX6806XR23 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6806XR23, 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 part is unused and in its original packaging.
Return procedure for MAX6806XR23:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6806XR23 Tags
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MIC826SYMT-TR
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APX803L20-29SA-7
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