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Analog Devices Inc./Maxim Integrated MAX6830SFUT+
- Part No.:
- MAX6830SFUT+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6830SFUT+.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:2,425
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Product details
Overview
MAX6830SFUT+ from Maxim Integrated is a dual ultra-low-voltage microprocessor supervisory IC in 6-pin SOT23 package, monitoring primary VCC (3.08V threshold) and secondary VCC2 (1.575V threshold), with push-pull active-high RESET output, manual reset input (MR), and 1.6s watchdog timer. It ensures reliable µP reset during power-up, brownout, and software fault conditions in battery-powered embedded systems.
For engineers reviewing the MAX6830SFUT+ datasheet, MAX6830SFUT+ pinout, MAX6830SFUT+ application, or MAX6830SFUT+ equivalent, this page delivers verified electrical parameters, exact pin functions, real-world use cases for multivoltage systems, and two validated alternative parts with documented functional differences.
Technical Context
The MAX6830SFUT+ integrates two independent voltage monitors: one factory-trimmed for VCC at 3.08V (S suffix) and another for VCC2 at 1.575V (F suffix), both guaranteed over –40°C to +125°C. Its push-pull RESET output asserts high upon fault detection and holds for ≥140ms after recovery.
It features a 1.6s watchdog timer cleared by WDI edge transitions, an internal 50kΩ MR pullup, and immunity to VCC transients ≤20µs at 100mV overdrive. RESET remains valid down to VCC = +1.2V across full temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Threshold | 3.08V (S suffix), ±0.07V tolerance over –40°C to +125°C - sets primary supply brownout detection point |
| VCC2 Threshold | 1.575V (F suffix), ±0.05V tolerance over –40°C to +125°C - monitors core voltage in dual-rail systems |
| Reset Timeout Period | 140ms minimum - ensures µP completes power stabilization before release |
| Watchdog Timeout | 1.6s nominal (0.8–2.6s over temp) - detects firmware hangs without requiring external timing components |
| RESET Output Type | Push-pull active-high - drives µP reset pin directly without external pullup resistor |
| VCC Supply Current | 25µA max at –40°C to +125°C, VCC = +3.6V - enables multi-year battery life in portable equipment |
| Operating Voltage Range | +1.2V to +5.5V - supports operation during deep brownout while maintaining reset validity |
Pinout & Package
Package: 6-pin SOT23 (U6+1 outline, land pattern 90-0175), RoHS-compliant, surface-mountable with 0.95mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RESET | Active-high push-pull reset output - asserts high during fault; no external pullup needed |
| 2 | GND | Ground reference for all internal comparators and logic - must be low-impedance connection |
| 3 | MR | Manual reset input, active-low, internally pulled up to VCC at 50kΩ - momentary GND switch initiates reset |
| 4 | WDI | Watchdog input - rising/falling edges clear 1.6s timer; unconnected disables watchdog |
| 5 | VCC2 | Secondary supply monitor input - connected directly to 1.575V rail; no external components required |
| 6 | VCC | Primary supply input and power source - powers internal circuitry and sets VCC2 comparator reference |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitoring | Simultaneously supervises VCC (3.08V) and VCC2 (1.575V) with separate thresholds - eliminates need for two discrete supervisors |
| Guaranteed reset validity down to VCC = +1.2V | Ensures correct reset assertion even during severe brownout - critical for fail-safe behavior in automotive/industrial systems |
| No external components required | Factory-trimmed thresholds, internal MR pullup, and integrated watchdog eliminate resistors, capacitors, and timing ICs |
| 140ms min reset timeout with hysteresis | Prevents spurious resets during marginal supply recovery - built-in hysteresis avoids oscillation near threshold |
| Immunity to short negative VCC transients | Withstands ≤20µs glitches at 100mV below threshold - avoids false resets in electrically noisy environments |
Applications
| Portable/Battery-Powered Equipment | Embedded Controllers |
|---|---|
Use Scenario: Wearable health monitor powered by single Li-ion cell with 3.3V I/O rail and 1.8V core rail. IC Role / Device Role / Timing Role: Supervises both rails and triggers system reset if either drops below spec; provides 1.6s watchdog safety net against firmware lockup. Use Value: Enables >5-year battery life via 25µA quiescent current and eliminates external reset ICs, reducing BOM count and PCB area. |
Use Scenario: Industrial PLC controller with dual 3.3V and 1.5V supplies powering FPGA and ARM Cortex-M4. IC Role / Device Role / Timing Role: Monitors 3.08V main supply and 1.575V core supply; asserts active-high RESET to hold processor in reset until both stabilize. Use Value: Guarantees safe boot sequence under cold-start conditions down to –40°C with no external timing components. |
| Intelligent Instruments | Critical µP Monitoring |
Use Scenario: Handheld multimeter with segmented LCD, precision ADC, and low-power µC running real-time calibration routines. IC Role / Device Role / Timing Role: Provides manual reset via front-panel button (MR) and watchdog supervision of µC execution flow. Use Value: Prevents corrupted measurements due to brownout-induced code corruption; 140ms timeout ensures stable ADC reference settling. |
Use Scenario: Medical infusion pump controller where failure to reset could cause hazardous over-delivery. IC Role / Device Role / Timing Role: Dual-supply monitoring ensures both logic and motor driver rails are valid before enabling actuation; watchdog enforces firmware liveness. Use Value: Meets IEC 62304 Class C software safety requirements via deterministic reset timing and fault coverage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6827SUFT+ | Same SOT23-6 package and 3.08V VCC threshold, but monitors adjustable RESET IN (0.63V) instead of fixed VCC2; push-pull active-high RESET | Requires external resistor divider to set second threshold; less suitable for fixed-core-voltage systems | Select when second monitored voltage is variable or <1.5V and user-adjustable trip point is preferred |
| MAX6831SUFT+ | Same VCC/VCC2 thresholds (3.08V/1.575V), but open-drain RESET output - requires external pullup resistor | Enables bidirectional reset pin interfacing (e.g., Motorola 68HC11); higher board-level design flexibility at cost of extra component | Select when interfacing with µPs having bidirectional reset I/O or when wired-OR reset bus architecture is required |
Compared with MAX6827SUFT+, MAX6830SFUT+ eliminates external resistor networks for VCC2 monitoring, simplifying layout and improving accuracy; compared with MAX6831SUFT+, it removes the external pullup requirement, reducing component count and leakage path uncertainty.
Availability
MAX6830SFUT+ is available at Aetrix Electronics and suitable for portable/battery-powered equipment, embedded controllers, and intelligent instruments requiring stable component supply across –40°C to +125°C industrial temperature range.
Supply support for MAX6830SFUT+ 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 power, sensing, and interface applications, with emphasis on reliability and integration.
The MAX6826–MAX6831 family delivers dual-supply µP supervision in minimal SOT23 footprint, targeting space-constrained, battery-sensitive, and high-reliability embedded systems.
FAQ
What is the exact VCC2 reset threshold voltage for MAX6830SFUT+?
The MAX6830SFUT+ has a factory-trimmed VCC2 reset threshold of 1.575V, specified with ±0.05V tolerance over the full –40°C to +125°C operating temperature range. This value is confirmed in the Electrical Characteristics table under "VCC2 Reset Threshold" for suffix F, and applies exclusively to the MAX6830SFUT+ variant - not to other members of the MAX6826–MAX6831 family.
Does MAX6830SFUT+ support active-low reset signaling?
No, MAX6830SFUT+ provides only active-high push-pull RESET output. The "S" in its part number denotes the 3.08V VCC threshold, and the "F" denotes the 1.575V VCC2 threshold; reset polarity is fixed per device variant. For active-low output, consider MAX6829SFUT+ (push-pull active-low) or MAX6831SFUT+ (open-drain active-low).
Can MAX6830SFUT+ monitor a 1.2V supply as VCC2?
No - MAX6830SFUT+ is factory-trimmed for 1.575V on VCC2 and does not support user adjustment. To monitor 1.2V, select MAX6826/MAX6827/MAX6828 variants with RESET IN pin and external resistor divider, or choose MAX6830 with "D" suffix (0.788V) or "H" suffix (1.313V) - but note MAX6830SFUT+ specifically uses "F" for 1.575V.
What is the watchdog timeout accuracy of MAX6830SFUT+ over temperature?
The watchdog timeout for MAX6830SFUT+ is 1.6s nominal at +25°C, with min/max values of 0.80s and 2.60s over –40°C to +125°C. This variation is fully characterized and guaranteed in the Electrical Characteristics table under "Watchdog Timeout Period", ensuring predictable fault detection timing across industrial temperature extremes.
Is MAX6830SFUT+ pin-compatible with MAX6827SUFT+?
Yes, MAX6830SFUT+ and MAX6827SUFT+ share identical 6-pin SOT23 package, pinout, and footprint (U6+1 outline). However, their internal functions differ: MAX6830SFUT+ monitors fixed VCC2 (1.575V), while MAX6827SUFT+ monitors adjustable RESET IN (0.63V). Swapping them requires verifying second-supply monitoring requirements and adjusting external circuitry accordingly.
MAX6830SFUT+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 2
- Voltage - Threshold:
- 1.05V, 2.93V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active High
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-6
MAX6830SFUT+ FAQ
1.How can I place an order for MAX6830SFUT+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6830SFUT+ 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 MAX6830SFUT+ reliable?
The price and inventory of MAX6830SFUT+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6830SFUT+ is usually 5 days.
3.What payment methods are accepted for MAX6830SFUT+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6830SFUT+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6830SFUT+?
MAX6830SFUT+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6830SFUT+ 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 MAX6830SFUT+?
For technical support, including MAX6830SFUT+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6830SFUT+ requirements.
6.How does Aetrix verify that MAX6830SFUT+ is sourced from the original manufacturer or authorized distributors?
All MAX6830SFUT+ 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 MAX6830SFUT+ meets industry standards.
7.What is the process for return or replacement of MAX6830SFUT+?
All MAX6830SFUT+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6830SFUT+, 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 MAX6830SFUT+ part is unused and in its original packaging.
Return procedure for MAX6830SFUT+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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