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Analog Devices Inc./Maxim Integrated MAX6830SDUT-T
- Part No.:
- MAX6830SDUT-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6830SDUT-T.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:5,000
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Product details
Overview
MAX6830SDUT-T 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 (2.188V 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 hang in battery-powered embedded systems.
For engineers reviewing the MAX6830SDUT-T datasheet, MAX6830SDUT-T pinout, MAX6830SDUT-T application, or MAX6830SDUT-T equivalent, this page delivers verified electrical specs, thermal operating range (–40°C to +125°C), reset timeout (140ms min), VCC2 monitoring capability, and real-world design implications for multivoltage system supervision.
Technical Context
The MAX6830SDUT-T implements dual independent voltage monitoring: VCC monitored at factory-trimmed 3.08V (±3% over –40°C to +125°C), and VCC2 at 2.188V (±3% over same range). Its internal watchdog timer triggers reset if WDI remains static >1.6s (min 1.12s, max 2.6s over temperature), cleared on any WDI edge.
Reset assertion is synchronized across all fault conditions - VCC/VCC2 undervoltage, MR low, or watchdog timeout - with guaranteed reset validity down to VCC = +1.2V and 140ms minimum timeout delay. The push-pull RESET output sources ≥0.8×VCC at 200µA and sinks ≤0.3V at 1.2mA, enabling direct interface with µP reset inputs without external pullup.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Threshold | 3.08V (±3% over –40°C to +125°C); sets primary supply brownout detection point for 3.3V I/O rails |
| VCC2 Threshold | 2.188V (±3% over –40°C to +125°C); factory-trimmed for accurate monitoring of 2.5V or 1.8V core supplies |
| Reset Timeout | 140ms minimum; ensures µP completes full initialization before release, preventing premature code execution |
| Watchdog Period | 1.6s nominal (1.12–2.6s over temperature); provides robust software hang detection without requiring precise timing margins |
| Operating Range | VCC = +2.7V to +3.6V; supports stable operation across full industrial temperature range (–40°C to +125°C) |
| RESET Output Type | Push-pull active-high; eliminates need for external pullup resistor and enables direct drive of µP reset pins requiring high-asserted reset |
| Supply Current | 7µA typical at +3.6V, –40°C to +85°C; enables multi-year battery life in portable equipment |
Pinout & Package
MAX6830SDUT-T is housed in a RoHS-compliant 6-pin SOT23 package (U6+1 outline, land pattern 90-0175), measuring 2.9mm × 1.6mm × 1.1mm, optimized for space-constrained portable and embedded PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RESET | Active-high push-pull reset output; asserts high during fault conditions and holds for 140ms minimum after recovery |
| 2 | GND | Ground reference for all internal comparators, timers, and output drivers; must be low-impedance connection |
| 3 | MR | Active-low manual reset input with 50kΩ internal pullup; initiates reset when pulled to GND, no external components needed |
| 4 | WDI | Watchdog input; toggling within 1.6s prevents reset; left unconnected disables watchdog function |
| 5 | VCC2 | Secondary supply input; connected directly to monitored 2.188V rail (e.g., 2.5V LDO output or 1.8V core) |
| 6 | VCC | Primary supply input; powers device and sets 3.08V threshold for main I/O rail supervision |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitoring | Simultaneously supervises VCC (3.08V) and VCC2 (2.188V) with separate thresholds, enabling true multivoltage system reliability |
| Guaranteed reset validity to VCC = +1.2V | Ensures clean, deterministic reset assertion even during deep brownout-critical for fail-safe shutdown in battery-powered devices |
| No external components required | Integrates pullup on MR, precision voltage references, watchdog timer, and reset delay generator-reduces BOM count and layout area |
| Immunity to short negative VCC transients | Withstands ≤20µs, 100mV VCC glitches without spurious reset-eliminates need for additional filtering in noisy environments |
| 1.6s watchdog timeout with edge-triggered clear | Prevents software lockup by requiring periodic WDI transitions-not just level changes-enhancing robustness against stuck states |
Applications
| Portable/Battery-Powered Equipment | Embedded Controllers |
|---|---|
|
Use Scenario: Handheld medical monitors powered by single-cell Li-ion batteries experiencing voltage sag under load. IC Role / Device Role / Timing Role: Supervises 3.3V I/O rail (VCC) and 1.8V processor core rail (VCC2), asserting RESET if either drops below threshold during discharge. Use Value: Prevents corrupted memory writes and erratic behavior during battery brownout, extending usable runtime without compromising safety-critical operation. |
Use Scenario: Industrial PLC controller with dual-rail power (3.3V I/O, 2.5V FPGA core) operating in wide-temperature environments. IC Role / Device Role / Timing Role: Monitors both rails independently; triggers 140ms reset hold to ensure FPGA configuration completes before CPU boot. Use Value: Eliminates boot failures caused by asynchronous rail sequencing or thermal-induced voltage droop at –40°C or +125°C. |
| Intelligent Instruments | Critical µP Monitoring |
|
Use Scenario: Portable gas analyzer with low-power µC, sensor bias supplies, and real-time display requiring glitch-free startup. IC Role / Device Role / Timing Role: Uses MR for user-initiated recalibration reset and WDI to detect firmware hangs during sensor data acquisition loops. Use Value: Enables field-serviceable recalibration and automatic recovery from sensor driver crashes-no physical power cycle needed. |
Use Scenario: Automotive body control module where µP reset integrity is mandated for ASIL-B functional safety compliance. IC Role / Device Role / Timing Role: Provides independent VCC/VCC2 supervision plus watchdog, with reset timeout exceeding µP's internal POR requirement. Use Value: Meets ISO 26262 diagnostic coverage requirements for power-supply-related faults without adding redundant discrete supervisors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6827SDUT-T | Same package and pinout; VCC threshold = 2.93V (S-suffix), VCC2 = 2.188V, but RESET output is active-high push-pull (same as MAX6830SDUT-T) | Optimized for 2.8V–3.0V primary rails instead of 3.3V; suitable when main supply is regulated to 2.9V ±5% | Select MAX6827SDUT-T if primary rail nominal is 2.9V and identical functionality is required-no PCB change needed. |
| MAX6831SDUT-T | Same package and pinout; identical VCC/VCC2 thresholds and watchdog, but RESET output is open-drain (not push-pull) | Required for interfacing with µPs having bidirectional reset pins (e.g., Motorola 68HC11) or wired-OR reset buses | Choose MAX6831SDUT-T only when open-drain reset is mandatory; otherwise MAX6830SDUT-T simplifies design with integrated pullup capability. |
Compared with MAX6827SDUT-T, MAX6830SDUT-T provides higher VCC threshold (3.08V vs. 2.93V) for tighter margin on 3.3V rails; compared with MAX6831SDUT-T, it eliminates external pullup and reduces quiescent current in reset-deasserted state due to push-pull architecture.
Availability
MAX6830SDUT-T is available at Aetrix Electronics and suitable for portable/battery-powered equipment, embedded controllers, and intelligent instruments requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6830SDUT-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 demanding industrial, automotive, and computing applications.
The MAX6826–MAX6831 family was engineered specifically for dual-rail microprocessor supervision in space- and power-constrained systems, combining ultra-low ICC, factory-trimmed thresholds, and integrated watchdog functionality in minimal SOT23 footprint.
FAQ
What is the exact VCC reset threshold voltage for MAX6830SDUT-T and its tolerance over temperature?
The MAX6830SDUT-T has a VCC reset threshold of 3.08V, with ±3% tolerance over the full industrial temperature range (–40°C to +125°C). This value is factory-trimmed and specified in the Electrical Characteristics table under "MAX68_ _T" suffix. At –40°C to +85°C, the range is 3.00V to 3.15V; at –40°C to +125°C, it tightens to 2.97V to 3.17V. This ensures reliable detection of 3.3V rail brownout while accommodating worst-case drift.
Does MAX6830SDUT-T monitor both VCC and VCC2 simultaneously, and what are their respective threshold voltages?
Yes, MAX6830SDUT-T monitors both VCC and VCC2 simultaneously. VCC is monitored at 3.08V (T-suffix), and VCC2 is monitored at 2.188V (Y-suffix), both factory-trimmed and guaranteed over –40°C to +125°C. These thresholds are fixed per the "SDUT-T" ordering code and cannot be adjusted externally-unlike the MAX6826/MAX6827/MAX6828 series, which use RESET IN for user-adjustable secondary monitoring.
What type of RESET output does MAX6830SDUT-T provide, and how does it interface with a microprocessor?
MAX6830SDUT-T provides an active-high push-pull RESET output. It drives high (≥0.8×VCC) when reset is not asserted and drives low (≤0.3V at 1.2mA) when asserted. This eliminates the need for an external pullup resistor and allows direct connection to µP reset pins expecting active-high reset signals, such as many ARM Cortex-M and Renesas RL78 devices.
How is the watchdog timer in MAX6830SDUT-T configured, and what is its timeout behavior?
The watchdog timer in MAX6830SDUT-T has a nominal timeout of 1.6s, with min/max values of 1.12s and 2.6s over –40°C to +125°C. It is edge-triggered: any rising or falling edge on WDI clears the timer. If WDI remains static beyond timeout, RESET asserts for 140ms. Leaving WDI unconnected disables the watchdog, as the internal driver resets it every ~1.4s.
Is MAX6830SDUT-T compatible with systems requiring operation down to 1.2V VCC, and what is the guaranteed reset validity limit?
Yes, MAX6830SDUT-T is fully operational and guarantees valid RESET output down to VCC = +1.2V over –40°C to +125°C. The datasheet explicitly states "Guaranteed Reset Valid Down to VCC = +1.0V" for the family, and MAX6830SDUT-T meets this spec. Below +1.2V, reset assertion remains functional, but output drive strength degrades progressively until VCC = +1.0V, the absolute lower limit.
MAX6830SDUT-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Bulk
- Product Status:
- Active
- 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-23-6
MAX6830SDUT-T FAQ
1.How can I place an order for MAX6830SDUT-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6830SDUT-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 MAX6830SDUT-T reliable?
The price and inventory of MAX6830SDUT-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6830SDUT-T is usually 5 days.
3.What payment methods are accepted for MAX6830SDUT-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6830SDUT-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6830SDUT-T?
MAX6830SDUT-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6830SDUT-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 MAX6830SDUT-T?
For technical support, including MAX6830SDUT-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6830SDUT-T requirements.
6.How does Aetrix verify that MAX6830SDUT-T is sourced from the original manufacturer or authorized distributors?
All MAX6830SDUT-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 MAX6830SDUT-T meets industry standards.
7.What is the process for return or replacement of MAX6830SDUT-T?
All MAX6830SDUT-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6830SDUT-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 MAX6830SDUT-T part is unused and in its original packaging.
Return procedure for MAX6830SDUT-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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