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Analog Devices Inc./Maxim Integrated MAX6807XR26
- Part No.:
- MAX6807XR26
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX6807XR26.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:941
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Product details
Overview
MAX6807XR26 from Maxim Integrated is a precision voltage detector IC designed for power-supply monitoring in microprocessor-based systems. It features a factory-preset 2.6V ±2% reset threshold, active-high push-pull RESET output, and guaranteed operation down to VCC = 1.2V - enabling reliable brownout detection in battery-powered instrumentation and portable controllers.
For engineers reviewing the MAX6807XR26 datasheet, MAX6807XR26 pinout, MAX6807XR26 application, or MAX6807XR26 equivalent, key selection criteria include its 2.6V threshold accuracy, 35µA supply current, immunity to VCC transients up to 100mV overdrive, and compatibility with 3-pin SC70 packaging for space-constrained embedded designs.
Technical Context
The MAX6807XR26 implements a precision bandgap-based voltage comparator with internal hysteresis (VHYST = 0.02–0.03 × VTH−), ensuring stable reset assertion/deassertion during supply ramp-up and brownout conditions. Its active-high push-pull output drives logic-high when VCC exceeds 2.6V and logic-low when VCC falls below threshold - eliminating external pullup components.
It operates across −40°C to +85°C with supply current of 35µA (typ) at VCC = 3.6V and supports VCC ranging from 1.2V to 5.5V. The device is immune to negative-going VCC transients ≤100mV overdrive for durations under 10µs, per Figure 3 of the datasheet.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.60V ±2% (VTH−), factory-trimmed - ensures accurate power-fail detection for 2.5V/3.3V systems |
| Supply Voltage Range | 1.2V to 5.5V - supports operation during deep brownout and full-system power-up |
| Supply Current | 35µA typical at 3.6V - enables multi-year battery life in portable equipment |
| RESET Output Type | Active-high, push-pull - eliminates need for external pullup resistor and simplifies µP interface |
| Hysteresis | 0.02–0.03 × VTH− - prevents output chatter near threshold during slow-ramping supplies |
| Operating Temperature | −40°C to +85°C - qualified for industrial and automotive-adjacent embedded applications |
| Transient Immunity | No reset pulse for VCC transients ≤100mV overdrive and <10µs duration - improves robustness in noisy power environments |
Pinout & Package
MAX6807XR26 is supplied in a 3-pin SC70 package (outline 21-0075), with pin 1 = RESET (active-high push-pull), pin 2 = GND, pin 3 = VCC. No manual reset (MR) input is available in this variant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RESET | Active-high push-pull output - asserts logic-high when VCC ≥ 2.6V; sinks/source current without external components |
| 2 | GND | Ground reference - must be connected directly to system ground plane for noise immunity |
| 3 | VCC | Supply input - accepts 1.2V–5.5V; powers internal comparator and output stage |
Key Features
| Feature | Design Value |
|---|---|
| Precision 2.6V threshold | ±2% accuracy over temperature - eliminates calibration and reduces BOM count in 2.5V/3.3V systems |
| Low quiescent current | 35µA typical - extends battery runtime in handheld instruments and scanners |
| Push-pull active-high output | No external pullup required - simplifies PCB layout and reduces component cost vs open-drain alternatives |
| SC70 footprint | 1.25mm × 0.85mm body - enables high-density placement in compact portable electronics |
| Transient immunity | Immune to sub-10µs, ≤100mV VCC dips - avoids false resets in electrically noisy environments |
Applications
| Portable/Battery-Powered Equipment | Bar-Code Scanners |
|---|---|
Use Scenario: Power monitoring in handheld barcode scanners powered by single-cell Li-ion or alkaline batteries. IC Role / Device Role / Timing Role: Voltage detector asserting active-high RESET to halt processor execution when battery drops below 2.6V. Use Value: Prevents data corruption and flash write errors during low-battery brownout, using only 35µA quiescent current. | Use Scenario: Supervisory circuit in compact, battery-operated retail scanners with tight board area constraints. IC Role / Device Role / Timing Role: Reset generator with SC70 footprint that interfaces directly to µP reset pin without pullup. Use Value: Enables 1.25mm × 0.85mm board real estate savings while maintaining ±2% threshold accuracy over temperature. |
| Intelligent Instruments | Critical µP and µC Power Monitoring |
Use Scenario: Embedded test equipment requiring reliable power-on reset and brownout protection during field deployment. IC Role / Device Role / Timing Role: Precision voltage monitor providing active-high RESET signal synchronized to 2.6V supply rail. Use Value: Guarantees valid reset output down to VCC = 1.2V, supporting safe shutdown before logic-level degradation. | Use Scenario: Microcontroller supervisory function in industrial controllers where supply stability is mission-critical. IC Role / Device Role / Timing Role: Standalone reset IC replacing discrete resistor-divider + comparator solutions. Use Value: Eliminates external components and trimming, reducing design risk and improving long-term reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage detector applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6807UR26-T | Same 2.6V threshold, active-high push-pull output, but in 3-pin SOT23 package (larger footprint, 1.3mm × 1.75mm) | Suitable for designs with less stringent size constraints and existing SOT23 land patterns | Select when board layout accommodates larger package or requires tape-and-reel compatibility with standard SOT23 feeders |
| TLV803EB26DBZR | 2.63V threshold (±0.5%), 350nA supply current, active-high open-drain output - requires external pullup | Better suited for ultra-low-power applications where 350nA dominates system budget, but adds external resistor | Choose only if nanoscale current savings outweigh added component count and reduced noise margin from open-drain topology |
Compared with MAX6807UR26-T and TLV803EB26DBZR, the MAX6807XR26 offers identical electrical functionality in the smallest available footprint (SC70), delivering optimal space efficiency without sacrificing threshold accuracy or push-pull drive strength.
Availability
MAX6807XR26 is available at Aetrix Electronics and suitable for portable/battery-powered equipment, bar-code scanners, intelligent instruments, and critical µP/µC power monitoring requiring stable component supply and long-lifecycle support.
Supply support for MAX6807XR26 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 semiconductor company specializing in analog, mixed-signal, and power-management ICs for industrial, communications, and consumer applications.
The MAX6806/MAX6807/MAX6808 family was designed specifically for precision power-supply monitoring in microprocessor systems - delivering factory-trimmed thresholds, low IQ, and robust transient immunity in miniature packages.
FAQ
What is the reset threshold voltage of MAX6807XR26 and how accurate is it?
The MAX6807XR26 has a factory-preset reset threshold of 2.60V with ±2% accuracy over temperature (−40°C to +85°C). This means the actual trip point falls between 2.548V and 2.652V at +25°C, and maintains tight tolerance across its full operating range - critical for reliable brownout detection in 2.5V/3.3V systems. The MAX6807XR26 achieves this via laser-trimmed bandgap reference circuitry.
Does MAX6807XR26 require an external pullup resistor on its RESET pin?
No, MAX6807XR26 does not require an external pullup resistor because it features an active-high push-pull RESET output. The internal output stage actively drives logic-high when VCC exceeds the 2.6V threshold and logic-low when VCC falls below it. This eliminates external components, reduces PCB area, and improves noise immunity compared to open-drain alternatives like MAX6808XR26-T.
What is the minimum supply voltage at which MAX6807XR26 guarantees valid RESET output?
The MAX6807XR26 guarantees valid RESET output down to VCC = 1.2V - meaning RESET remains a well-defined logic-high or logic-low across the entire functional supply range. Below 1.2V, output behavior is unspecified. This specification enables safe system shutdown before digital logic levels degrade, and is confirmed in the Electrical Characteristics table under "RESET Output Voltage (MAX6807)".
Which package type is used by MAX6807XR26 and what are its dimensions?
MAX6807XR26 uses the 3-pin SC70 package (outline 21-0075), measuring 1.25mm × 0.85mm with 0.65mm lead pitch. This is the smallest package option in the MAX6806/6807/6808 family, optimized for ultra-compact portable electronics. Pin 1 is RESET, pin 2 is GND, and pin 3 is VCC - no manual reset (MR) pin is included in this variant.
How does MAX6807XR26 handle power-supply transients, and what is its immunity limit?
MAX6807XR26 is immune to short-duration negative-going VCC transients up to 100mV of overdrive (i.e., VCC dipping 100mV below the 2.6V threshold) for durations under 10µs - per Figure 3 in the datasheet. This prevents false resets caused by switching noise or load transients. For enhanced immunity, a 0.1µF ceramic capacitor placed close to the VCC pin is recommended.
MAX6807XR26 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 High
- Reset Timeout:
- 30µs Typical
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-µMAX
MAX6807XR26 FAQ
1.How can I place an order for MAX6807XR26 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6807XR26 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 MAX6807XR26 reliable?
The price and inventory of MAX6807XR26 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6807XR26 is usually 5 days.
3.What payment methods are accepted for MAX6807XR26?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6807XR26 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6807XR26?
MAX6807XR26 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6807XR26 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 MAX6807XR26?
For technical support, including MAX6807XR26 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6807XR26 requirements.
6.How does Aetrix verify that MAX6807XR26 is sourced from the original manufacturer or authorized distributors?
All MAX6807XR26 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 MAX6807XR26 meets industry standards.
7.What is the process for return or replacement of MAX6807XR26?
All MAX6807XR26 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6807XR26, 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 MAX6807XR26 part is unused and in its original packaging.
Return procedure for MAX6807XR26:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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