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Analog Devices Inc./Maxim Integrated MAX6807UA26
- Part No.:
- MAX6807UA26
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX6807UA26.pdf
- Description:
- IC SUPERVISOR 1 CHAN 8UMAX/USOP
- Quantity:
- Payment:
- Shipping:
Inventory:11,718
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Product details
Overview
MAX6807UA26 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, guaranteed operation down to VCC = 1.2V, 35µA supply current, and internal hysteresis - enabling reliable brownout detection in portable battery-powered equipment and intelligent instruments.
For engineers reviewing the MAX6807UA26 datasheet, MAX6807UA26 pinout, MAX6807UA26 application, or MAX6807UA26 equivalent, this device is selected for accurate, low-power supply supervision where immediate reset assertion on VCC drop-without timeout delay-is required, and where compatibility with 8-pin µMAX footprint and push-pull logic-level drive matters.
Technical Context
The MAX6807UA26 implements a comparator-based reset circuit with internal hysteresis (VHYST = 0.02–0.03 × VTH−), ensuring stable switching during supply transients. Its active-high RESET output drives high when VCC falls below 2.6V (VTH−) and transitions low only after VCC rises above VTH+ (≈2.626V at +25°C).
It operates across −40°C to +85°C, draws 35µA typical supply current at VCC = 3.6V, and maintains valid RESET output down to VCC = 1.2V (VOH ≥ 0.8×VCC at ISOURCE = 20µA). The 8-pin µMAX package supports pin compatibility with MC33064/MC34064 families.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.60V ±2% (VTH−), factory-trimmed - ensures precise detection of 2.5V system supply undervoltage before ICs fail. |
| Supply Voltage Range | 1.2V to 5.5V - supports operation during deep brownout while maintaining valid RESET output. |
| Supply Current | 35µA typical at VCC = 3.6V - enables long battery life in portable instrumentation and barcode scanners. |
| RESET Output Type | Active-high, push-pull - directly drives CMOS inputs without external pullup; sinks 3.2mA / sources 20µA. |
| Hysteresis | 0.02–0.03 × VTH− (≈52–78mV) - prevents oscillation near threshold during slow-rising/falling VCC. |
| Operating Temp | −40°C to +85°C - qualified for industrial embedded and critical µP power monitoring environments. |
| Package | 8-pin µMAX (3mm × 3mm) - surface-mount compatible with standard SO-8 footprints and legacy supervisory IC layouts. |
Pinout & Package
MAX6807UA26 is housed in an 8-pin µMAX package (outline 21-0036), pin-compatible with MC33064/MC34064. Pin 1 is RESET (active-high push-pull), Pin 2 is VCC, Pin 4 is GND. Pins 3, 5–8 are not internally connected (N.C.).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RESET | Active-high push-pull output - asserts high during reset; valid down to VCC = 1.2V; no external pullup needed. |
| 2 | VCC | Supply input - accepts 1.2V to 5.5V; absolute max rating = +6.0V. |
| 4 | GND | Ground reference - common return for supply and output. |
| 3, 5–8 | N.C. | No internal connection - must be left unconnected; no electrical function or thermal role. |
Key Features
| Feature | Design Value |
|---|---|
| ±2% accurate reset threshold | Guarantees detection within 52mV of 2.6V at +25°C - eliminates need for external trimming or calibration in 2.5V/3.3V systems. |
| Active-high push-pull RESET | Drives high-state actively - avoids external pullup resistor, reduces BOM count, and ensures fast rise/fall times into capacitive loads. |
| Valid RESET down to VCC = 1.2V | Ensures deterministic reset assertion even during severe brownout - critical for preserving state in µP-based controllers before shutdown. |
| 35µA supply current | Enables multi-year operation on coin-cell batteries in portable test equipment and handheld scanners. |
| Immunity to VCC transients | Rejects negative-going spikes ≤100µs (at 100mV overdrive) - prevents false resets in electrically noisy industrial environments. |
Applications
| Battery-Powered Barcode Scanners | Intelligent Industrial Instruments |
|---|---|
|
Use Scenario: Scanners powered by single-cell Li-ion (3.0–4.2V) or alkaline stacks experience voltage sag under motor/laser load. IC Role / Device Role / Timing Role: Voltage detector asserting active-high RESET to halt MCU execution when supply drops below 2.6V. Use Value: Prevents corrupted memory writes or erratic sensor readings during undervoltage - improves field reliability without firmware intervention. |
Use Scenario: Portable multimeters and data loggers operate across wide temperature ranges with varying battery chemistries. IC Role / Device Role / Timing Role: Supervisory IC providing immediate reset on VCC fall below 2.6V, with no timeout delay. Use Value: Ensures clean restart after battery replacement or cold-start - eliminates need for manual power-cycle in field service. |
| Critical Microcontroller Power Monitoring | Portable Medical Diagnostic Devices |
|
Use Scenario: Embedded controllers in safety-critical systems require deterministic reset behavior during AC/DC adapter dropout. IC Role / Device Role / Timing Role: Precision reset generator with 2.6V threshold and 52mV hysteresis to avoid chatter near regulation limit. Use Value: Guarantees single, glitch-free reset pulse - satisfies IEC 62304 software lifecycle requirements for medical firmware. |
Use Scenario: Handheld ECG or glucose meters powered by CR2032 coin cells exhibit steep discharge curves below 2.7V. IC Role / Device Role / Timing Role: Low-quiescent-current (35µA) supervisor detecting end-of-life battery before functional failure. Use Value: Enables graceful shutdown and low-battery warning - extends usable runtime and prevents data loss during measurement. |
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 and active-high push-pull output, but in 3-pin SOT23 package (smaller footprint, no N.C. pins). | Limited to space-constrained PCBs where 8-pin µMAX layout is unavailable; lacks pin compatibility with MC33064. | Select when board area is critical and legacy footprint compatibility is not required. |
| TLV803EB26DBZR | 2.63V threshold (±0.5%), 1.8–6V supply range, 0.5µA quiescent current - lower power but tighter accuracy and different hysteresis profile. | Better suited for ultra-low-power IoT sensors; less tolerant of VCC transients than MAX6807UA26. | Select when sub-1µA supply current is mandatory and transient immunity is secondary. |
Compared with MAX6807UR26-T, MAX6807UA26 offers legacy SO-8/muMAX layout compatibility and higher noise immunity; compared with TLV803EB26DBZR, it trades ultra-low IQ for proven industrial transient rejection and broader VCC operating margin.
Availability
MAX6807UA26 is available at Aetrix Electronics and suitable for battery-powered barcode scanners, intelligent industrial instruments, and critical microcontroller power monitoring requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MAX6807UA26 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 industrial, computing, and communications applications, with emphasis on reliability and integration.
The MAX6807 series belongs to Maxim's supervisory IC product line, engineered specifically for accurate, low-power supply voltage monitoring in µP/µC systems where deterministic reset timing and robustness against transients are essential.
FAQ
What is the exact reset threshold voltage of MAX6807UA26?
The MAX6807UA26 has a factory-preset nominal reset threshold of 2.60V with ±2% accuracy over temperature (−40°C to +85°C), meaning VTH− is guaranteed between 2.548V and 2.652V at +25°C. This value is laser-trimmed and does not require external calibration. The MAX6807UA26 uses this threshold to assert its active-high RESET output whenever VCC falls below that level.
Does MAX6807UA26 support manual reset functionality?
No, the MAX6807UA26 in the 8-pin µMAX package does not include a manual reset (MR) input. Manual reset is only available in the 4-pin SOT143 variant (e.g., MAX6807US26-T), which integrates an MR pin with internal 80kΩ pulldown. The MAX6807UA26 relies solely on VCC monitoring and provides no provision for external reset initiation.
What is the minimum VCC required for MAX6807UA26 to guarantee valid RESET output?
The MAX6807UA26 guarantees valid active-high RESET output down to VCC = 1.2V, per datasheet specifications. At VCC = 1.2V, VOH ≥ 0.8×VCC (≥0.96V) with ISOURCE = 20µA. Below 1.2V, RESET behavior is not specified. This ensures reliable reset assertion during deep brownout conditions before system collapse - a key design feature of the MAX6807UA26.
Is MAX6807UA26 pin-compatible with older supervisory ICs like MC34064?
Yes, the MAX6807UA26 in 8-pin µMAX and 8-pin SO packages is explicitly designed to be pin-compatible with MC33064, MC33164, MC34064, and MC34164. Pin 1 (RESET), Pin 2 (VCC), and Pin 4 (GND) align functionally and physically. This allows drop-in replacement in existing designs without PCB modification - a documented advantage of the MAX6807UA26.
What package type is used by MAX6807UA26 and what are its key mechanical properties?
The MAX6807UA26 uses the 8-pin µMAX package (outline 21-0036), measuring 3mm × 3mm × 0.8mm with 0.65mm lead pitch. It is RoHS-compliant, thermally enhanced for surface-mount reflow, and supports tape-and-reel delivery. Unlike SOT23 or SC70 variants, the µMAX version includes unused pins (3, 5–8) designated N.C., simplifying layout while retaining compatibility with legacy SO-8 footprints - a defining trait of the MAX6807UA26.
MAX6807UA26 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
MAX6807UA26 FAQ
1.How can I place an order for MAX6807UA26 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6807UA26 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 MAX6807UA26 reliable?
The price and inventory of MAX6807UA26 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6807UA26 is usually 5 days.
3.What payment methods are accepted for MAX6807UA26?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6807UA26 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6807UA26?
MAX6807UA26 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6807UA26 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 MAX6807UA26?
For technical support, including MAX6807UA26 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6807UA26 requirements.
6.How does Aetrix verify that MAX6807UA26 is sourced from the original manufacturer or authorized distributors?
All MAX6807UA26 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 MAX6807UA26 meets industry standards.
7.What is the process for return or replacement of MAX6807UA26?
All MAX6807UA26 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6807UA26, 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 MAX6807UA26 part is unused and in its original packaging.
Return procedure for MAX6807UA26:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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