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Analog Devices Inc./Maxim Integrated MAX6830SDUT+
- Part No.:
- MAX6830SDUT+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6830SDUT+.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:2,460
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Product details
Overview
MAX6830SDUT+ from Maxim Integrated is a dual ultra-low-voltage microprocessor supervisory IC in 6-pin SOT23 package, monitoring primary VCC (3.0V threshold) and secondary VCC2 (2.5V threshold), with push-pull active-high RESET output, manual reset input (MR), and 1.6s watchdog timer. It guarantees valid reset operation down to VCC = +1.2V and supports critical µP monitoring in portable, embedded, and multivoltage systems.
For engineers reviewing the MAX6830SDUT+ datasheet, MAX6830SDUT+ pinout, MAX6830SDUT+ application, or MAX6830SDUT+ equivalent, key selection criteria include its factory-trimmed dual-supply thresholds (VCC = 3.08V, VCC2 = 2.5V), guaranteed reset validity at low VCC, push-pull active-high RESET logic, and integrated watchdog with 1.6s timeout-critical for battery-powered and industrial embedded designs requiring deterministic power-up sequencing and brownout recovery.
Technical Context
The MAX6830SDUT+ implements a dual-threshold supervision architecture: one internal comparator monitors VCC against a fixed 3.08V threshold (S-suffix), while a second monitors VCC2 against a factory-trimmed 2.5V threshold (D-suffix). Its push-pull RESET output asserts high during fault conditions and remains asserted for ≥140ms after recovery.
It integrates a 1.6s watchdog timer cleared by WDI edge transitions, an internal 50kΩ MR pullup, and operates across –40°C to +125°C with supply current as low as 7µA (VCC = +3.6V, TA ≤ +85°C). Reset assertion is immune to VCC transients ≤20µs when overdrive is ≤100mV.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Threshold | 3.08V (S-suffix), ±3% tolerance over –40°C to +125°C - sets primary supply brownout detection point for 3.3V systems. |
| VCC2 Threshold | 2.5V (D-suffix), ±3% tolerance over –40°C to +125°C - factory-trimmed secondary monitor for 2.5V I/O rails. |
| Reset Timeout Period | 140ms minimum - ensures µP completes power stabilization before release from reset state. |
| Watchdog Timeout | 1.6s nominal (–40°C to +85°C), 0.8s–2.6s range (–40°C to +125°C) - provides robust software execution monitoring without excessive false triggers. |
| RESET Output Type | Push-pull active-high - eliminates external pullup resistor, drives high-impedance µP reset pins directly with VOH ≥ 0.8×VCC. |
| Operating Voltage Range | VCC = +2.7V to +3.6V (S-suffix), functional down to +1.2V - enables use in low-power 3.3V systems with brownout margin. |
| Supply Current | 7µA typical at +3.6V, +25°C - minimizes quiescent load on battery or low-dropout regulator outputs. |
Pinout & Package
Package: 6-pin SOT23 (U6+1 outline, land pattern 90-0175), RoHS-compliant, surface-mount.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RESET | Push-pull active-high reset output - drives µP reset pin high during fault; no external pullup required. |
| 2 | GND | Ground reference for all internal comparators and logic - must be low-impedance connection to system ground plane. |
| 3 | MR | Manual reset input, active-low, internally pulled up to VCC with 50kΩ - momentary GND connection forces system reset. |
| 4 | WDI | Watchdog input - rising or falling edge clears 1.6s timer; left unconnected disables watchdog function. |
| 5 | VCC2 | Secondary supply input - connected to 2.5V rail; monitored against factory-trimmed 2.5V threshold. |
| 6 | VCC | Primary supply input - connected to 3.3V rail; monitored against 3.08V S-suffix threshold. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitoring | Simultaneously supervises 3.3V main rail (VCC) and 2.5V I/O rail (VCC2) with separate, factory-trimmed thresholds - eliminates need for discrete supervisors or resistor dividers. |
| Guaranteed reset validity down to VCC = +1.2V | Ensures reliable reset assertion even during deep brownout or slow power ramp-up - critical for fail-safe boot in automotive and industrial applications. |
| 1.6s watchdog timer with edge-triggered clear | Prevents software lockup by requiring periodic WDI toggling - tolerant of noise due to 50ns minimum pulse width detection. |
| No external components required | Integrates pullup on MR, precision references, delay generator, and watchdog oscillator - reduces BOM count and PCB area in space-constrained designs. |
| Immunity to short negative VCC transients | Withstands ≤20µs glitches below threshold by ≤100mV without spurious reset - improves robustness in electrically noisy environments. |
Applications
| Portable/Battery-Powered Equipment | Embedded Controllers |
|---|---|
Use Scenario: Power management in handheld medical devices with dual-rail Li-ion battery regulation (3.3V core, 2.5V sensor interface). IC Role / Device Role / Timing Role: Dual-supply supervisor ensuring synchronized reset release only after both rails stabilize above 3.08V and 2.5V, with 140ms hold time. Use Value: Prevents firmware corruption during battery voltage sag by asserting reset until both supplies meet precise thresholds. |
Use Scenario: Industrial PLC controller board with isolated 3.3V MCU domain and 2.5V analog front-end. IC Role / Device Role / Timing Role: Monitors VCC (3.3V) and VCC2 (2.5V) independently; generates active-high RESET to ARM Cortex-M reset pin. Use Value: Enables single-chip supervision of heterogeneous power domains, reducing component count vs. dual discrete supervisors. |
| Intelligent Instruments | Critical µP Monitoring |
Use Scenario: Portable oscilloscope with FPGA-configurable analog signal chain powered by 3.3V and 2.5V supplies. IC Role / Device Role / Timing Role: Asserts push-pull RESET high during VCC or VCC2 undervoltage; maintains reset for ≥140ms post-recovery. Use Value: Guarantees FPGA configuration integrity by preventing startup until both rails are stable and within spec. |
Use Scenario: Safety-critical motor control module where µP must never execute undefined code during power transition. IC Role / Device Role / Timing Role: Provides fail-safe reset generation with watchdog supervision (1.6s timeout) and manual reset via front-panel button. Use Value: Meets IEC 61508 SIL-2 requirements for deterministic reset behavior under brownout and software hang conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6827SDUT+ | Same VCC threshold (3.08V) and package, but features active-low push-pull RESET output instead of active-high. | Requires inverted reset logic on µP side; incompatible with µPs expecting active-high reset assertion. | Select MAX6827SDUT+ only if target µP reset pin is active-low and board layout cannot accommodate level-shifting. |
| MAX6830TDUT+ | Identical functionality and pinout, but VCC2 threshold is 2.19V (T-suffix) instead of 2.5V (D-suffix); VCC threshold unchanged at 3.08V. | Suitable for systems with 2.2V auxiliary rail instead of 2.5V; not interchangeable without verifying secondary rail voltage tolerance. | Choose MAX6830TDUT+ only when supervising a 2.2V supply; verify system timing margins with reduced VCC2 threshold hysteresis. |
Compared with MAX6827SDUT+, MAX6830SDUT+ provides active-high RESET compatibility with modern low-voltage µPs; compared with MAX6830TDUT+, it offers tighter alignment with standard 2.5V I/O rails, reducing risk of premature reset release in mixed-voltage systems.
Availability
MAX6830SDUT+ is available at Aetrix Electronics and suitable for portable/battery-powered equipment, embedded controllers, and intelligent instruments requiring stable component supply with guaranteed long-term availability and full traceability.
Supply support for MAX6830SDUT+ 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 semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and consumer applications.
The MAX6826–MAX6831 family was designed specifically for ultra-low-voltage dual-supply microprocessor supervision in space-constrained, battery-sensitive systems - emphasizing low ICC, wide temperature operation, and integrated watchdog functionality.
FAQ
What is the exact VCC and VCC2 reset threshold voltage for MAX6830SDUT+?
The MAX6830SDUT+ has a VCC reset threshold of 3.08V (S-suffix, ±3% over –40°C to +125°C) and a VCC2 reset threshold of 2.5V (D-suffix, ±3% over –40°C to +125°C). These values are factory-trimmed and specified in the Electrical Characteristics table of the MAX6826–MAX6831 datasheet. The MAX6830SDUT+ uses these precise thresholds to supervise 3.3V and 2.5V rails without external components.
Does MAX6830SDUT+ support active-high or active-low reset output?
The MAX6830SDUT+ features a push-pull active-high RESET output. When a fault occurs (VCC < 3.08V, VCC2 < 2.5V, MR low, or watchdog timeout), RESET asserts high; it returns low after the reset timeout period (≥140ms) once all conditions are satisfied. This matches µPs with active-high reset inputs and eliminates the need for an external pullup resistor.
Can MAX6830SDUT+ monitor a secondary supply lower than 2.5V?
No - the MAX6830SDUT+ is factory-trimmed for a fixed 2.5V VCC2 threshold (D-suffix). It does not support user-adjustable secondary monitoring. For sub-2.5V supervision, consider the MAX6826/MAX6827/MAX6828 series with RESET IN pin (0.63V threshold) and external resistor divider. The MAX6830SDUT+ is optimized for standard 2.5V I/O rails.
What is the watchdog timeout period of MAX6830SDUT+ and how is it cleared?
The MAX6830SDUT+ watchdog timeout is 1.6s nominal at +25°C (0.8s–2.6s over –40°C to +125°C). It is cleared by any rising or falling edge on the WDI pin. If WDI is left unconnected, the internal driver disables the watchdog. The MAX6830SDUT+ requires no external clock or timing components - the watchdog oscillator is fully integrated.
Is MAX6830SDUT+ compatible with operation down to 1.0V VCC?
The MAX6830SDUT+ is guaranteed to operate correctly down to VCC = +1.2V over its full temperature range (–40°C to +125°C). While the broader MAX6826–MAX6831 family specifies operation down to +1.0V for some variants, the S-suffix version (including MAX6830SDUT+) is characterized and guaranteed from +1.2V - sufficient for most 3.3V systems experiencing moderate brownout.
MAX6830SDUT+ 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:
- 0.788V, 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
MAX6830SDUT+ FAQ
1.How can I place an order for MAX6830SDUT+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6830SDUT+ 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 MAX6830SDUT+ reliable?
The price and inventory of MAX6830SDUT+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6830SDUT+ is usually 5 days.
3.What payment methods are accepted for MAX6830SDUT+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6830SDUT+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6830SDUT+?
MAX6830SDUT+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6830SDUT+ 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 MAX6830SDUT+?
For technical support, including MAX6830SDUT+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6830SDUT+ requirements.
6.How does Aetrix verify that MAX6830SDUT+ is sourced from the original manufacturer or authorized distributors?
All MAX6830SDUT+ 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 MAX6830SDUT+ meets industry standards.
7.What is the process for return or replacement of MAX6830SDUT+?
All MAX6830SDUT+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6830SDUT+, 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 MAX6830SDUT+ part is unused and in its original packaging.
Return procedure for MAX6830SDUT+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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