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Analog Devices Inc./Maxim Integrated MAX6806XR26+T
- Part No.:
- MAX6806XR26+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX6806XR26+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:1,038
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Product details
Overview
MAX6806XR26+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 2.6V ±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 controllers.
For engineers reviewing the MAX6806XR26+T datasheet, MAX6806XR26+T pinout, MAX6806XR26+T application, or MAX6806XR26+T equivalent, key selection criteria include reset accuracy over temperature, low supply current (35µA typical), manual-reset compatibility (in SOT143 variant), immunity to fast VCC transients, and SC70 package suitability for space-constrained embedded designs.
Technical Context
The MAX6806XR26+T implements a precision bandgap-based voltage reference and comparator with internal hysteresis (VHYST = 0.02–0.03 × VTH−) to prevent output chatter near the 2.6V threshold. Its push-pull output drives CMOS logic directly without external pull-up components.
It operates across −40°C to +85°C with supply current stable from 1.0V to 5.5V VCC, and asserts RESET within 30µs of VCC falling below threshold. The SC70-3 package places RESET, GND, and VCC on pins 1, 2, and 3 respectively - matching industry-standard pinout conventions for 3-pin voltage monitors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.60V ±2% (VTH− at +25°C); ensures reliable assertion 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 equipment |
| RESET Output Type | Active-low, push-pull; eliminates need for external pull-up resistor and interfaces directly with µP reset inputs |
| Hysteresis | 0.02–0.03 × VTH−; prevents oscillation during slow-rising/falling VCC transitions near threshold |
| Reset Delay | 30µs max (VCC falling at 1mV/µs); provides deterministic timing for synchronous system recovery |
| Tempco | 30ppm/°C; maintains threshold stability across industrial temperature range |
Pinout & Package
MAX6806XR26+T is housed in a 3-pin SC70 package (outline 21-0075), with 0.65mm pitch, 1.25mm × 0.85mm footprint, and tape-and-reel delivery (2500 pcs minimum). This ultra-compact package supports high-density PCB layouts in handheld and IoT edge devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RESET (active-low) | Push-pull output asserted low when VCC < 2.6V; sinks up to 1mA and sources up to 2mA |
| 2 | GND | Ground reference for internal comparator and output stage; must be low-impedance connection |
| 3 | VCC | Supply input monitored by internal reference; valid from 1.0V to 5.5V; accepts transient rates up to 100V/µs |
Key Features
| Feature | Design Value |
|---|---|
| ±2% threshold accuracy over temperature | Guarantees reset assertion before 3.3V or 2.5V system ICs exit specification - no calibration required |
| 35µA supply current | Reduces quiescent power in always-on monitoring paths; enables use in energy-harvesting nodes |
| RESET valid to VCC = 1.0V | Ensures clean reset signal throughout full power collapse - critical for nonvolatile memory write protection |
| Immunity to negative VCC transients | Withstands sub-100ns glitches down to 200mV below threshold without false triggering |
| No external components required | Eliminates BOM cost and layout area for resistors, capacitors, or trimming networks |
Applications
| Portable/Battery-Powered Equipment | Intelligent Instruments |
|---|---|
|
Use Scenario: Power monitoring in handheld multimeters and portable data loggers with Li-ion or coin-cell supplies. IC Role / Device Role / Timing Role: Voltage detector asserting reset during battery depletion or cold-temperature voltage sag. Use Value: Prevents corrupted measurements or firmware crashes by ensuring µC resets before supply drops below 2.5V logic threshold. |
Use Scenario: Supervisory function in benchtop oscilloscopes and spectrum analyzers with FPGA-based control subsystems. IC Role / Device Role / Timing Role: Precision reset generator synchronized to 3.3V analog front-end and digital core rails. Use Value: Eliminates need for discrete resistor-divider networks while maintaining ±2% threshold tolerance across −40°C to +85°C. |
| Critical µP and µC Power Monitoring | Bar-Code Scanners |
|
Use Scenario: Reset supervision for ARM Cortex-M0/M3 microcontrollers in industrial gateways. IC Role / Device Role / Timing Role: Primary reset source during cold start, brownout, and hot-swap events. Use Value: 30µs delay and push-pull drive ensure deterministic reset pulse width compatible with µC reset timing requirements. |
Use Scenario: Power integrity monitoring in handheld laser bar-code scanners powered by rechargeable NiMH packs. IC Role / Device Role / Timing Role: Low-voltage lockout (LVLO) circuit preventing erroneous scan decoding during battery voltage droop. Use Value: 2.6V threshold aligns with nominal 2.4–2.8V discharge curve of NiMH cells, extending usable runtime before shutdown. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage detector applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV803EB26DBZR | 2.63V threshold (±1%), 1.8–6V VCC range, 350nA IQ, open-drain output | Lower IQ suits ultra-low-power wake-up circuits; open-drain requires pull-up and cannot drive heavy loads directly | Select when minimizing standby current is critical and system reset input accepts open-drain signaling |
| TPS3808G33DBVR | 3.08V threshold (±0.5%), 1.8–6.5V VCC, 1.1µA IQ, active-low push-pull, programmable delay | Higher threshold and integrated delay block suit 3.3V systems requiring timed reset hold-off | Select when 3.3V rail supervision is needed with configurable delay and tighter threshold tolerance |
Compared with TLV803EB26DBZR and TPS3808G33DBVR, the MAX6806XR26+T offers optimal balance of 2.6V threshold alignment, push-pull drive strength, and proven industrial temperature reliability - making it preferred for battery-powered µC systems where direct interface and brownout margin are prioritized over ultra-low IQ or programmability.
Availability
MAX6806XR26+T 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, consistent SC70-3 packaging, and long-term industrial-grade availability.
Supply support for MAX6806XR26+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) is a U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and computing applications.
The MAX6806 family was designed specifically for precision, low-power voltage monitoring in space- and power-constrained embedded systems - delivering factory-trimmed thresholds, minimal external components, and guaranteed operation across full industrial temperature range.
FAQ
What is the exact reset threshold voltage of the MAX6806XR26+T?
The MAX6806XR26+T has a factory-preset nominal reset threshold of 2.60V with ±2% accuracy over temperature (2.548V to 2.652V at +25°C). This value is guaranteed across the full −40°C to +85°C operating range, with a tempco of 30ppm/°C ensuring predictable drift in thermal cycling environments.
Does the MAX6806XR26+T support manual reset functionality?
No - the MAX6806XR26+T uses the 3-pin SC70 package, which does not include a manual reset (MR) pin. Manual reset is only available on the 4-pin SOT143 variant (e.g., MAX6806US26-T). The MAX6806XR26+T relies solely on VCC monitoring for automatic reset assertion and release.
What is the minimum supply voltage at which the MAX6806XR26+T guarantees valid RESET output?
The MAX6806XR26+T guarantees valid active-low RESET output down to VCC = 1.0V. Below this, the output becomes high-impedance. This ensures reliable reset assertion during deep brownout conditions common in battery-powered applications before system logic fails.
Can the MAX6806XR26+T be used with a 1.8V microcontroller supply rail?
Yes - the MAX6806XR26+T operates from VCC = 1.0V to 5.5V and asserts RESET when its 2.6V threshold is violated. While it monitors a higher rail (e.g., 3.3V or main battery), its output is compatible with 1.8V logic inputs due to push-pull structure and VOL ≤ 0.3V at ISINK = 20µA, ensuring solid low-level signaling.
What package type and pin count does the MAX6806XR26+T use?
The MAX6806XR26+T uses a 3-pin SC70 package (outline 21-0075), with pin 1 = RESET (active-low), pin 2 = GND, and pin 3 = VCC. It is supplied in tape-and-reel format with a minimum order quantity of 2500 units - optimized for automated SMT assembly in compact consumer and industrial electronics.
MAX6806XR26+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:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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
MAX6806XR26+T FAQ
1.How can I place an order for MAX6806XR26+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6806XR26+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 MAX6806XR26+T reliable?
The price and inventory of MAX6806XR26+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6806XR26+T is usually 5 days.
3.What payment methods are accepted for MAX6806XR26+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6806XR26+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6806XR26+T?
MAX6806XR26+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6806XR26+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 MAX6806XR26+T?
For technical support, including MAX6806XR26+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6806XR26+T requirements.
6.How does Aetrix verify that MAX6806XR26+T is sourced from the original manufacturer or authorized distributors?
All MAX6806XR26+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 MAX6806XR26+T meets industry standards.
7.What is the process for return or replacement of MAX6806XR26+T?
All MAX6806XR26+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6806XR26+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 MAX6806XR26+T part is unused and in its original packaging.
Return procedure for MAX6806XR26+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6806XR26+T Tags
-
MIC826SYMT-TR
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APX803S-31SA-7
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APX803L20-29SA-7
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