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Analog Devices Inc./Maxim Integrated MAX6807UR46-T
- Part No.:
- MAX6807UR46-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX6807UR46-T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:17,500
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Product details
Overview
MAX6807UR46-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 4.6V ±2% reset threshold, active-high push-pull RESET output, operates down to VCC = 1.2V, draws only 35µA supply current, and is housed in a 3-pin SOT23 package - used in critical µP power monitoring for portable equipment and intelligent instruments.
For engineers reviewing the MAX6807UR46-T datasheet, MAX6807UR46-T pinout, MAX6807UR46-T application, or MAX6807UR46-T equivalent, key selection criteria include guaranteed RESET assertion at VCC ≥ 1.2V, ±2% threshold accuracy over -40°C to +85°C, immunity to negative-going VCC transients up to 100µs (at 100mV overdrive), and compatibility with 5V/3.3V digital logic interfaces.
Technical Context
The MAX6807UR46-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 4.6V threshold. Its active-high push-pull RESET output drives high when VCC exceeds VTH+ and low when VCC falls below VTH−, with no internal timeout delay.
It requires no external components for basic operation, supports manual reset only in SOT143 variants (not applicable here), and maintains functional RESET output integrity across its full operating range of VCC = 1.2V to 5.5V and TA = −40°C to +85°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 4.60V ±2% (VTH− at 25°C); ensures reset asserts before system ICs drop below minimum operating voltage. |
| Supply Voltage Range | 1.2V to 5.5V; enables use with 1.8V, 3.3V, and 5V rails while guaranteeing RESET validity down to 1.2V. |
| Supply Current | 35µA typical at VCC = 3.6V; minimizes quiescent power draw in battery-powered applications. |
| RESET Output Type | Active-high, push-pull; eliminates need for external pull-up and directly interfaces with µP reset inputs requiring high-active assertion. |
| Threshold Tempco | 30ppm/°C; ensures stable trip point across industrial temperature range without calibration. |
| Hysteresis | 0.02–0.03 × VTH−; prevents oscillation during slow-rising/falling VCC transitions near threshold. |
| Reset Delay | 30µs (VCC falling at 1mV/µs); provides deterministic response timing for brownout detection. |
Pinout & Package
MAX6807UR46-T is packaged in a 3-pin SOT23 (U3-1) surface-mount package with gull-wing leads, RoHS-compliant, tape-and-reel delivery (2500 pcs minimum). Pin 1 = RESET (active-high push-pull), Pin 2 = GND, Pin 3 = VCC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (RESET) | Active-high reset output | Drives high when VCC ≥ VTH+; sinks current to drive low when VCC < VTH−; compatible with standard CMOS input thresholds. |
| 2 (GND) | Ground reference | Return path for internal bias and output stage; must be low-impedance connection to system ground plane. |
| 3 (VCC) | Supply voltage input | Power source for internal circuitry; accepts 1.2V–5.5V; absolute max rating is −0.3V to +6.0V. |
Key Features
| Feature | Design Value |
|---|---|
| Precision 4.6V threshold | ±2% accuracy over temperature ensures robust power-fail detection without margin stacking. |
| Low 35µA supply current | Extends battery life in portable equipment and enables always-on monitoring in low-power modes. |
| Active-high push-pull output | Directly drives µP reset pins requiring high-active assertion without external components or level-shifting. |
| VCC = 1.2V RESET guarantee | Ensures valid reset state even during deep brownout conditions where many controllers lose functionality. |
| Immunity to VCC transients | Rejects negative-going supply glitches ≤100µs (at 100mV overdrive), reducing false resets in noisy environments. |
Applications
| Portable/Battery-Powered Equipment | Intelligent Instruments |
|---|---|
|
Use Scenario: Handheld barcode scanners powered by single-cell Li-ion batteries experiencing voltage sag under load. IC Role / Device Role / Timing Role: Voltage detector asserting active-high RESET when battery drops below 4.6V, halting processor execution before data corruption occurs. Use Value: Prevents firmware crash and memory corruption during undervoltage events, enabling safe shutdown or low-power sleep entry. |
Use Scenario: Digital multimeters and portable oscilloscopes requiring stable initialization after battery insertion or AC adapter connection. IC Role / Device Role / Timing Role: Provides clean, glitch-free power-on reset signal synchronized to regulated 3.3V rail rise. Use Value: Eliminates need for RC-based reset circuits, improving startup repeatability and reducing BOM count. |
| Critical µP and µC Power Monitoring | Computers |
|
Use Scenario: Industrial PLC controllers relying on 5V logic rails where transient-induced resets must be avoided. IC Role / Device Role / Timing Role: Monitors main 5V supply and asserts RESET if voltage dips below 4.6V due to load switching or line disturbance. Use Value: Internal hysteresis and transient immunity ensure no chattering or spurious resets during marginal supply conditions. |
Use Scenario: Embedded controllers in thin-client terminals and kiosks with dual 5V/3.3V power domains. IC Role / Device Role / Timing Role: Supervises 5V domain to generate early warning reset before downstream logic enters undefined states. Use Value: Factory-trimmed 4.6V threshold aligns precisely with 5V ±5% supply tolerance, avoiding premature or delayed reset assertion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage detector applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6806UR46-T | Active-low push-pull RESET output; same 4.6V threshold, ±2% accuracy, and 35µA ICC. | Requires inverted logic interface; suitable where host µP expects active-low reset assertion. | Select when system design mandates active-low reset polarity and no level translation is desired. |
| TLV803SDBZR | 4.63V threshold (±1%), 1.8V–6V VCC range, 0.5µA ICC, SOT23-3 package; open-drain output. | Ultra-low current ideal for energy harvesting; open-drain requires external pull-up; lower accuracy tempco (50ppm/°C). | Choose for ultra-low-power applications where reset polarity flexibility and minimal quiescent draw outweigh push-pull convenience. |
Compared with MAX6806UR46-T, the MAX6807UR46-T provides native active-high reset signaling without inversion logic, while TLV803SDBZR offers significantly lower supply current but requires external biasing and lacks guaranteed RESET validity below 1.8V.
Availability
MAX6807UR46-T is available at Aetrix Electronics and suitable for portable/battery-powered equipment, intelligent instruments, critical µP and µC power monitoring, and computer peripheral designs requiring stable component supply, long-term lifecycle support, and consistent parametric performance.
Supply support for MAX6807UR46-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, computing, and consumer applications.
The MAX6806/MAX6807/MAX6808 family was designed specifically for accurate, low-power supply voltage monitoring in microprocessor systems - delivering factory-trimmed thresholds, minimal external component count, and robust noise immunity in miniature packages.
FAQ
What is the reset threshold voltage of the MAX6807UR46-T?
The MAX6807UR46-T has a factory-preset nominal reset threshold of 4.60V with ±2% accuracy over temperature (−40°C to +85°C). This means the actual falling threshold (VTH−) is guaranteed between 4.508V and 4.692V at +25°C, ensuring reliable detection of 5V supply undervoltage before downstream logic fails.
Does the MAX6807UR46-T support manual reset functionality?
No, the MAX6807UR46-T does not support manual reset. Manual reset (MR) is only available on the 4-pin SOT143 package variants (e.g., MAX6807US46-T). The MAX6807UR46-T uses a 3-pin SOT23 package with pins dedicated solely to RESET, GND, and VCC - no MR terminal is present or internally connected.
What is the minimum supply voltage at which the MAX6807UR46-T guarantees valid RESET output?
The MAX6807UR46-T guarantees valid RESET output down to VCC = 1.2V. Specifically, RESET is guaranteed to remain high when VCC ≥ 1.2V and asserted low when VCC falls below the threshold - a key differentiator from the MAX6806/MAX6808 variants, which guarantee operation down to 1.0V.
Can the MAX6807UR46-T be used with a 3.3V supply rail?
Yes, the MAX6807UR46-T operates over VCC = 1.2V to 5.5V and is fully specified for use with 3.3V supplies. Its 4.6V reset threshold remains accurate and stable, making it suitable for supervising 5V domains within mixed-voltage systems - for example, detecting 5V rail failure while powered from a local 3.3V LDO.
What package type and pin configuration does the MAX6807UR46-T use?
The MAX6807UR46-T uses a 3-pin SOT23 (U3-1) package with top mark "FZDS". Pin 1 is the active-high RESET output, Pin 2 is GND, and Pin 3 is VCC. It is supplied in tape-and-reel format with a minimum order quantity of 2500 units, and is RoHS-compliant.
MAX6807UR46-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
MAX6807UR46-T FAQ
1.How can I place an order for MAX6807UR46-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6807UR46-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 MAX6807UR46-T reliable?
The price and inventory of MAX6807UR46-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6807UR46-T is usually 5 days.
3.What payment methods are accepted for MAX6807UR46-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6807UR46-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6807UR46-T?
MAX6807UR46-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6807UR46-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 MAX6807UR46-T?
For technical support, including MAX6807UR46-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6807UR46-T requirements.
6.How does Aetrix verify that MAX6807UR46-T is sourced from the original manufacturer or authorized distributors?
All MAX6807UR46-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 MAX6807UR46-T meets industry standards.
7.What is the process for return or replacement of MAX6807UR46-T?
All MAX6807UR46-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6807UR46-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 MAX6807UR46-T part is unused and in its original packaging.
Return procedure for MAX6807UR46-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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