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Analog Devices Inc./Maxim Integrated MAX6807XR26-T
- Part No.:
- MAX6807XR26-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX6807XR26-T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:10,000
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Product details
Overview
MAX6807XR26-T 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 operates down to VCC = 1.2V - enabling reliable brownout detection in battery-powered instrumentation and portable controllers.
For engineers reviewing the MAX6807XR26-T datasheet, MAX6807XR26-T pinout, MAX6807XR26-T application, or MAX6807XR26-T equivalent, key selection criteria include its 2.6V threshold accuracy, 35µA supply current, immunity to VCC transients up to 100mV overdrive, SC70-3 package footprint, and guaranteed RESET assertion during power-down below 2.6V.
Technical Context
The MAX6807XR26-T implements a bandgap-based voltage reference with internal hysteresis (VHYST = 0.02–0.03 × VTH−) to prevent output oscillation near the 2.6V threshold. Its comparator architecture guarantees monotonic RESET assertion on VCC fall and deassertion on VCC rise without timeout delay.
It uses a single-stage push-pull output stage delivering VOH ≥ 0.8×VCC at ISOURCE = 20µA (VCC = 1.2V) and VOL ≤ 0.4V at ISINK = 3.2mA (VCC = 5.0V), ensuring direct interface with CMOS logic without external pullups.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.60V ±2% (VCC falling); ensures reset asserts before 2.5V system ICs drop out of spec |
| Supply Current | 35µA typical at VCC = 3.6V; enables multi-year operation in coin-cell–powered devices |
| Operating Voltage Range | 1.2V to 5.5V; supports valid RESET output down to 1.2V, critical for low-VDD brownout detection |
| Output Type | Active-high push-pull; drives high-impedance loads directly without external components |
| Hysteresis | 0.02–0.03 × VTH−; prevents chatter during slow-rising/falling VCC near 2.6V |
| Tempco | 30ppm/°C; maintains threshold stability across −40°C to +85°C industrial range |
| Transient Immunity | Immune to negative-going VCC transients ≤100mV overdrive; eliminates false resets from noise |
Pinout & Package
MAX6807XR26-T is housed in a 3-pin SC70 package (outline 21-0075), measuring 2.0mm × 2.1mm × 0.95mm, compatible with high-density PCB layouts and reflow assembly.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RESET | Active-high push-pull output; asserts high when VCC < 2.6V; sinks/source capable per spec |
| 2 | GND | Ground reference for internal comparator and output stage; must be low-impedance |
| 3 | VCC | Supply input; powers internal circuitry and defines reset threshold reference point |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed 2.6V threshold | Eliminates external resistor dividers and calibration, reducing BOM count and layout area |
| No external components required | Enables single-chip reset supervision with zero passive parts - ideal for space-constrained SOT23/SC70 designs |
| Guaranteed RESET down to VCC = 1.2V | Ensures deterministic reset behavior during deep brownouts where other supervisors fail |
| 35µA quiescent current | Extends battery life in portable instruments and barcode scanners operating intermittently |
| Internal hysteresis (20–30mV) | Prevents repeated toggling during marginal VCC conditions - no external RC needed |
Applications
| Portable/Battery-Powered Equipment | Bar-Code Scanners |
|---|---|
Use Scenario: Handheld scanner powered by single Li-ion cell with voltage sag during motor activation. IC Role / Device Role / Timing Role: Voltage detector asserting active-high RESET when cell drops below 2.6V, halting decode engine before data corruption. Use Value: Prevents firmware crash and memory corruption by triggering controlled shutdown before VDD falls below µC minimum operating voltage. | Use Scenario: Industrial barcode reader operating in variable ambient temperature (−20°C to +60°C). IC Role / Device Role / Timing Role: Precision reset supervisor maintaining 2.6V trip point with ≤30ppm/°C drift across full range. Use Value: Guarantees consistent reset timing regardless of battery temperature, eliminating cold-start failures. |
| Critical µP and µC Power Monitoring | Intelligent Instruments |
Use Scenario: Embedded controller in medical diagnostic device requiring fail-safe boot sequence. IC Role / Device Role / Timing Role: Primary reset source verifying stable 3.3V rail before releasing µC from reset; no timeout delay. Use Value: Enables immediate µC execution upon valid VCC - avoids unnecessary boot delays while ensuring voltage integrity. | Use Scenario: Portable multimeter with auto-ranging analog front-end and LCD display. IC Role / Device Role / Timing Role: Monitors main 3.0V supply derived from boost converter; asserts RESET if output sags during high-current digit drive. Use Value: Prevents display glitches and ADC misreads by resetting system before analog reference collapses. |
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%), 300ms reset timeout, SOT23-3 package | Includes fixed reset timeout; unsuitable where immediate deassertion on VCC recovery is required | Select MAX6807XR26-T when zero-delay reset response is mandatory; choose TLV803EB26DBZR only if timeout is acceptable |
| TPS3808G26DBVR | 2.63V threshold (±0.5%), adjustable delay (0–10s), SOT23-6 package | Requires external capacitor for delay setting; larger footprint and higher cost | Choose MAX6807XR26-T for minimal footprint and guaranteed 1.2V operation; TPS3808G26DBVR adds flexibility at cost of complexity |
Compared with TLV803EB26DBZR and TPS3808G26DBVR, the MAX6807XR26-T delivers immediate reset assertion/deassertion without timeout, operates down to 1.2V, and fits the smallest SC70-3 footprint - making it optimal for ultra-low-power, space-constrained µP supervision where deterministic timing is critical.
Availability
MAX6807XR26-T is available at Aetrix Electronics and suitable for portable/battery-powered equipment, bar-code scanners, and critical µP and µC power monitoring requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for MAX6807XR26-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 precision analog, mixed-signal, and power-management ICs for industrial, computing, and communications applications.
The MAX6806/MAX6807/MAX6808 family was engineered specifically for accurate, low-power supply monitoring in microprocessor systems - prioritizing threshold accuracy, low ICC, and robust transient immunity over programmability or delay features.
FAQ
What is the exact reset threshold voltage of the MAX6807XR26-T?
The MAX6807XR26-T has a factory-preset nominal reset threshold of 2.60V with ±2% accuracy over −40°C to +85°C. At +25°C, the specified range is 2.548V to 2.652V for VCC falling. This value is trimmed during production and does not require external calibration. The MAX6807XR26-T maintains this accuracy across its full operating temperature range with a tempco of 30ppm/°C.
Does the MAX6807XR26-T provide a reset signal when VCC rises above the threshold?
Yes - the MAX6807XR26-T asserts RESET high when VCC falls below 2.6V and deasserts RESET low when VCC rises above the rising threshold (VTH+ ≈ 2.6V + hysteresis). Unlike timeout-based supervisors, the MAX6807XR26-T responds immediately to VCC crossing the threshold in either direction, with no intentional delay. The hysteresis (20–30mV) prevents chatter but does not introduce timing latency.
What is the minimum VCC required for valid RESET output operation in the MAX6807XR26-T?
The MAX6807XR26-T guarantees valid RESET output down to VCC = 1.2V. Specifically, VOH ≥ 0.8×VCC is ensured at ISOURCE = 20µA when VCC = 1.2V, and VOL ≤ 0.4V is guaranteed at ISINK = 3.2mA when VCC = 5.0V. Below 1.2V, RESET behavior is not specified - making the MAX6807XR26-T suitable for brownout detection in systems powered by single-cell Li-ion or alkaline batteries.
Can the MAX6807XR26-T be used in place of the MAX6806XR26-T?
No - the MAX6807XR26-T and MAX6806XR26-T are functionally distinct: the former provides an active-high push-pull RESET output, while the latter provides active-low. Swapping them requires inverting the reset logic in the host system. Both share identical 2.6V threshold, SC70-3 package, and electrical specs otherwise, but their output polarity is incompatible without board-level redesign.
Is manual reset capability supported on the MAX6807XR26-T?
No - manual reset (MR) input is only available on the 4-pin SOT143 package variants (e.g., MAX6807US26-T). The MAX6807XR26-T uses the 3-pin SC70 package, which contains only RESET, GND, and VCC pins. No MR terminal is present, and the device lacks internal circuitry to accept an external manual reset signal.
MAX6807XR26-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 High
- Reset Timeout:
- 30µs Typical
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-µMAX
MAX6807XR26-T FAQ
1.How can I place an order for MAX6807XR26-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6807XR26-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 MAX6807XR26-T reliable?
The price and inventory of MAX6807XR26-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6807XR26-T is usually 5 days.
3.What payment methods are accepted for MAX6807XR26-T?
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Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6807XR26-T?
MAX6807XR26-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6807XR26-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 MAX6807XR26-T?
For technical support, including MAX6807XR26-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6807XR26-T requirements.
6.How does Aetrix verify that MAX6807XR26-T is sourced from the original manufacturer or authorized distributors?
All MAX6807XR26-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 MAX6807XR26-T meets industry standards.
7.What is the process for return or replacement of MAX6807XR26-T?
All MAX6807XR26-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6807XR26-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 MAX6807XR26-T part is unused and in its original packaging.
Return procedure for MAX6807XR26-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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