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Analog Devices Inc./Maxim Integrated MAX6807US26-T
- Part No.:
- MAX6807US26-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX6807US26-T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
MAX6807US26-T from Maxim Integrated is an active-high, push-pull voltage supervisor IC designed for precise power supply monitoring in microprocessor-based systems. It asserts a reset signal when VCC falls below 2.60V ±2%, features 35µA supply current, guarantees RESET validity down to VCC = 1.2V, and is housed in a 4-pin SOT143 package with manual-reset input - used in portable battery-powered equipment requiring reliable brownout detection.
For engineers reviewing the MAX6807US26-T datasheet, MAX6807US26-T pinout, MAX6807US26-T application, or MAX6807US26-T equivalent, this page delivers verified electrical parameters, confirmed SOT143 pin mapping with MR support, real-world use cases in intelligent instruments and bar-code scanners, and two validated alternative parts with documented functional and interface differences.
Technical Context
The MAX6807US26-T implements a precision bandgap-based voltage comparator with internal hysteresis (VHYST = 0.02–0.03 × VTH−), enabling stable reset assertion/deassertion during supply transients. Its active-high push-pull output drives logic-high directly without external pull-ups, eliminating bus contention risks seen with open-drain variants.
It integrates an 80kΩ internal pulldown resistor on the MR pin (SOT143 only), supporting momentary-switch manual reset initiation. Reset delay is 30µs at VCC falling at 1mV/µs, and temperature coefficient is ≤30ppm/°C over −40°C to +85°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.60V ±2% (VTH− at +25°C); ensures reset assertion before system ICs drop below minimum operating voltage. |
| Supply Voltage Range | 1.2V to 5.5V (−40°C to +85°C); supports operation down to near-logic-threshold VCC while maintaining valid RESET output. |
| Supply Current | 35µA typical at VCC = 3.6V; enables ultra-low-power supervision in battery-critical applications. |
| RESET Output Type | Active-high, push-pull; provides rail-to-rail logic-high drive without external components or pull-up resistors. |
| Hysteresis | 0.02–0.03 × VTH−; prevents output chatter during slow or noisy VCC transitions near threshold. |
| MR Input Threshold | VIL = 0.6V, VIH = 0.7 × VCC; compatible with standard CMOS/TTL logic levels for manual reset control. |
| Operating Temperature | −40°C to +85°C; qualified for industrial and portable embedded environments. |
Pinout & Package
MAX6807US26-T is supplied in a 4-pin SOT143 package (lead-free, RoHS-compliant), featuring VCC, GND, RESET (active-high push-pull), and MR (manual reset) terminals. The compact 1.5mm × 1.5mm footprint supports high-density PCB layouts in space-constrained portable designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RESET | Active-high push-pull output; drives high when VCC ≥ VTH+ or MR is asserted; sinks current only during deassertion. |
| 2 | GND | Ground reference for internal comparator and output stage; must be low-impedance for accurate threshold sensing. |
| 3 | VCC | Primary supply input; powers internal circuitry and defines reset threshold reference; rated for 1.2V–5.5V operation. |
| 4 | MR | Active-high manual reset input; internally pulled down by 80kΩ; asserts RESET when driven >0.7×VCC. |
Key Features
| Feature | Design Value |
|---|---|
| ±2% accurate reset threshold | Guarantees deterministic reset timing across voltage and temperature; eliminates need for calibration or trimming. |
| Active-high push-pull RESET | Drives full VCC logic-high without external pull-up; simplifies interface with µP reset inputs requiring active-high assertion. |
| Manual reset input (MR) | Integrated 80kΩ pulldown enables switch-based reset initiation without added components; supports field service and test modes. |
| Immunity to VCC transients | Withstands negative-going transients up to 100mV overdrive for durations <10µs; avoids false resets in electrically noisy environments. |
| Low 35µA quiescent current | Extends battery life in always-on supervision circuits; suitable for multi-year operation in coin-cell–powered devices. |
Applications
| Portable/Battery-Powered Equipment | Bar-Code Scanners |
|---|---|
|
Use Scenario: Power management in handheld scanners powered by single-cell Li-ion or alkaline batteries, where VCC sags under motor or laser load. IC Role / Device Role / Timing Role: Voltage supervisor asserting active-high RESET to halt processor execution during brownout, ensuring safe state retention. Use Value: Prevents data corruption and flash write errors by guaranteeing reset before VCC drops below 2.5V logic margin. |
Use Scenario: Supervision of 3.3V logic rails in ruggedized barcode readers subjected to ESD and cable-induced transients. IC Role / Device Role / Timing Role: Precision reset generator with transient immunity, interfacing directly to ARM Cortex-M0 reset pin. Use Value: Eliminates need for RC-based reset circuits and external Schmitt triggers, reducing BOM count and board area. |
| Intelligent Instruments | Critical µP and µC Power Monitoring |
|
Use Scenario: Embedded diagnostic tools with real-time sensor logging, requiring guaranteed restart after power interruption. IC Role / Device Role / Timing Role: Supervisor providing clean, glitch-free reset pulse with 30µs delay and no chatter near threshold. Use Value: Ensures deterministic boot sequence and EEPROM integrity via synchronized reset assertion across analog/digital domains. |
Use Scenario: Industrial controller modules where µC must remain held in reset until regulated 2.6V rail stabilizes post-power-up. IC Role / Device Role / Timing Role: Primary reset source with factory-trimmed 2.60V threshold, replacing discrete Zener + transistor solutions. Use Value: Reduces design risk by removing component tolerance stacking and temperature drift from reset timing budget. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6806US26-T | Active-low push-pull RESET output; identical threshold, hysteresis, and MR functionality. | Requires inverted reset logic path or level-shifting interface for µPs expecting active-low reset. | Select when host µP reset pin is active-low and no logic inversion is available in the signal path. |
| TPS3808G26DBVR | 2.63V threshold (±0.5%), 1.8–6.0V supply range, 1.6µA quiescent current, no MR pin in SOT-23 variant. | Lacks manual reset input; optimized for ultra-low-power, non-field-serviceable applications. | Choose for extended battery life where MR is unnecessary and tighter threshold accuracy is prioritized over configurability. |
Compared with MAX6806US26-T and TPS3808G26DBVR, the MAX6807US26-T uniquely combines active-high push-pull drive, factory-trimmed 2.60V threshold, and integrated MR in a 4-pin SOT143 - making it optimal for field-serviceable, µP-based portable systems needing deterministic, low-component-count reset control.
Availability
MAX6807US26-T is available at Aetrix Electronics and suitable for portable/battery-powered equipment, bar-code scanners, intelligent instruments, and critical µP power monitoring requiring stable component supply and long-term industrial availability.
Supply support for MAX6807US26-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 and mixed-signal ICs for industrial, computing, and consumer applications, with emphasis on reliability, integration, and low-power operation.
The MAX6806/MAX6807/MAX6808 family was engineered specifically for robust, low-component-count power-supply monitoring in microprocessor systems - delivering factory-trimmed accuracy, transient immunity, and flexible reset polarity in miniature packages.
FAQ
What is the reset threshold voltage of the MAX6807US26-T?
The MAX6807US26-T has a factory-preset reset threshold of 2.60V ±2% (VTH−) at +25°C, with hysteresis of 0.02–0.03 × VTH−. This value is guaranteed over the full −40°C to +85°C operating range and ensures reset assertion before downstream ICs fall outside their specified operating voltage window. The MAX6807US26-T maintains this accuracy without external calibration.
Does the MAX6807US26-T support manual reset functionality?
Yes, the MAX6807US26-T supports manual reset via its MR pin - available only in the 4-pin SOT143 package. The MR input is active-high with VIH = 0.7 × VCC and includes an internal 80kΩ pulldown resistor. When MR is driven above VIH, RESET is asserted immediately regardless of VCC level. This feature is fully implemented in the MAX6807US26-T and enables field service, testing, and user-initiated recovery.
What is the minimum VCC required for valid RESET output from the MAX6807US26-T?
The MAX6807US26-T guarantees valid RESET output down to VCC = 1.2V. Below this voltage, RESET behavior is not specified. This specification is explicitly defined in the Electrical Characteristics table for the MAX6807US26-T and enables reliable reset assertion during deep brownout conditions common in battery-powered systems approaching end-of-life.
How does the MAX6807US26-T differ from the MAX6808US26-T?
The MAX6807US26-T features an active-high push-pull RESET output, while the MAX6808US26-T uses an active-low open-drain output requiring an external pull-up. Both share identical 2.60V threshold, MR capability (SOT143), and temperature range. The MAX6807US26-T eliminates external components for active-high interfaces, whereas the MAX6808US26-T supports wired-OR configurations and multi-voltage domain reset sharing.
Is the MAX6807US26-T pin-compatible with legacy supervisory ICs like the MC33064?
No, the MAX6807US26-T is not pin-compatible with the MC33064. While the 8-pin µMAX and SO packages of the MAX6807 family are pin-compatible with MC33064/MC34064, the MAX6807US26-T uses a 4-pin SOT143 package with dedicated MR and RESET pins - differing in pin count, layout, and function from the 3-pin TO-92 or 8-pin SO footprints of those legacy parts. Pin compatibility applies only to MAX6807UAxx and MAX6807SAxx variants.
MAX6807US26-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
MAX6807US26-T FAQ
1.How can I place an order for MAX6807US26-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6807US26-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 MAX6807US26-T reliable?
The price and inventory of MAX6807US26-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6807US26-T is usually 5 days.
3.What payment methods are accepted for MAX6807US26-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6807US26-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6807US26-T?
MAX6807US26-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6807US26-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 MAX6807US26-T?
For technical support, including MAX6807US26-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6807US26-T requirements.
6.How does Aetrix verify that MAX6807US26-T is sourced from the original manufacturer or authorized distributors?
All MAX6807US26-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 MAX6807US26-T meets industry standards.
7.What is the process for return or replacement of MAX6807US26-T?
All MAX6807US26-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6807US26-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 MAX6807US26-T part is unused and in its original packaging.
Return procedure for MAX6807US26-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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