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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:2,422
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Product details
Overview
MAX6830SDUT from Maxim Integrated is a dual ultra-low-voltage microprocessor supervisory circuit in SOT23-6 package, monitoring primary supply (VCC) at 1.575V ±1.5% and secondary supply (VCC2) at 0.788V ±1.5%, with push-pull active-high RESET output, manual reset input (MR), and 1.6s watchdog timeout - used in battery-powered embedded controllers requiring reliable brownout detection and system-level reset coordination.
For engineers reviewing the MAX6830SDUT datasheet, MAX6830SDUT pinout, MAX6830SDUT application, or MAX6830SDUT equivalent, this page delivers verified electrical thresholds, timing behavior under temperature variation, reset assertion logic for VCC/VCC2/MR/WDI events, and design guidance for interfacing with bidirectional µP reset pins and low-voltage multirail systems.
Technical Context
The MAX6830SDUT implements dual independent voltage monitoring: VCC threshold fixed at 1.575V (suffix 'V') and factory-trimmed VCC2 threshold at 0.788V (suffix 'D'), both with 60ppm/°C tempco and 2×VTH hysteresis. It asserts active-high RESET when either supply drops below its threshold, MR is pulled low, or WDI fails to toggle within 1.6s.
Its internal reset timeout delay is guaranteed ≥140ms across –40°C to +125°C, and RESET remains asserted for that full period after recovery. The device operates down to VCC = +1.0V, ensuring valid reset state during deep brownout, and features immunity to negative VCC transients ≤20µs at 100mV overdrive.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Reset Threshold | 1.575V ±1.5% - sets precise power-on reset point for 1.6V–1.8V core supplies |
| VCC2 Reset Threshold | 0.788V ±1.5% - factory-trimmed for accurate monitoring of sub-1V auxiliary rails (e.g., DDR I/O) |
| Reset Timeout Period | ≥140ms - ensures µP completes full initialization before release from reset |
| Watchdog Timeout | 1.6s nominal - provides robust software execution supervision without excessive timeout latency |
| Operating Voltage Range | +1.2V to +5.5V - supports operation during deep undervoltage while maintaining reset validity |
| RESET Output Type | Push-pull active-high - eliminates external pull-up, simplifies interface to µP reset inputs requiring high-asserted signal |
| Supply Current (ICC) | ≤30µA at +125°C - enables long battery life in portable instrumentation and wearables |
Pinout & Package
Package: 6-pin SOT23-6, surface-mount, lead-free compatible (UT-T suffix), footprint per Maxim drawing 21-0058.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RESET | Active-high push-pull reset output - drives high during normal operation; pulls low only during reset assertion |
| 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 (50kΩ) - momentary GND connection forces system reset |
| 4 | WDI | Watchdog input - toggling within 1.6s prevents reset; left floating disables watchdog function |
| 5 | VCC2 | Secondary supply monitor input - connects directly to monitored rail (e.g., 0.8V DDR I/O); no external components required |
| 6 | VCC | Primary supply input and power source - powers internal circuitry and defines operating voltage range |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitoring | Simultaneously supervises core (VCC) and I/O (VCC2) rails with separate, factory-trimmed thresholds |
| Guaranteed reset validity down to VCC = +1.0V | Ensures deterministic reset behavior during severe brownout - no undefined output states |
| 1.6s watchdog timer with edge-triggered clear | Resets on any WDI rising/falling edge - supports flexible software heartbeat placement without strict pulse symmetry |
| No external components required | Eliminates external resistors, capacitors, or trimming - reduces BOM count and layout area in space-constrained designs |
| Immunity to short negative VCC transients | Tolerates ≤20µs glitches at 100mV below threshold - avoids spurious resets in noisy automotive or industrial environments |
Applications
| Portable Power Management | Automotive Body Control Module |
|---|---|
|
Use Scenario: Monitoring 1.6V MCU core and 0.8V CAN transceiver I/O rails in handheld medical diagnostic device powered by single Li-ion cell. IC Role / Device Role / Timing Role: Dual-supply supervisor asserting active-high RESET to ARM Cortex-M0+ during brownout, with 140ms timeout ensuring full boot sequence completion. Use Value: Prevents corrupted firmware execution due to marginal VCC/VCC2 collapse; eliminates need for discrete reset ICs or resistor-divider networks. |
Use Scenario: Supervising 1.5V microcontroller core and 0.75V sensor interface rail in automotive door module exposed to load-dump and cold-crank conditions. IC Role / Device Role / Timing Role: Provides fail-safe reset coordination between main MCU and LIN slave peripherals, with MR input enabling service-mode reinitialization. Use Value: Guarantees reset assertion even at VCC = 1.0V during cold-crank, meeting ISO 16750-2 transient immunity requirements without additional support circuitry. |
| Industrial IoT Edge Node | Battery-Powered Smart Sensor |
|
Use Scenario: Ensuring reliable startup of dual-rail SoC (1.8V CPU, 1.2V RF subsystem) in wireless vibration monitor deployed in remote factory equipment. IC Role / Device Role / Timing Role: Monitors both rails independently; uses WDI to detect firmware hangs in BLE stack; asserts RESET to halt corrupted radio transmission. Use Value: Reduces field failure rate by catching latent software faults before data corruption occurs - extends mean time between failures (MTBF) by >3× vs. no-watchdog design. |
Use Scenario: Supervising 1.55V ultra-low-power MCU and 0.79V MEMS accelerometer supply in coin-cell-powered environmental sensor node. IC Role / Device Role / Timing Role: Delivers <30µA quiescent current while maintaining precise 1.575V/0.788V thresholds - matches rail tolerances of modern sub-1V analog front-ends. Use Value: Enables 10-year battery life without sacrificing reset accuracy; eliminates calibration drift via 60ppm/°C tempco matched to silicon sensor characteristics. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-supply supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6827SDUT | Same VCC/VCC2 thresholds (1.575V/0.788V) but active-low push-pull RESET output | Requires µP with active-low reset input; incompatible with active-high reset pin architectures | Select when interfacing with legacy MCUs (e.g., PIC18F) requiring low-asserted reset signals |
| TLV809EVDLDBZR | Single-supply supervisor (1.575V only), no VCC2 monitor, no watchdog, SOT23-3 package | Lacks secondary rail monitoring and system-level fault detection - insufficient for dual-rail safety-critical use | Use only in cost-sensitive, single-rail applications where watchdog and auxiliary monitoring are unnecessary |
Compared with MAX6830SDUT, MAX6827SDUT offers identical voltage monitoring but inverted RESET polarity, limiting compatibility with modern ARM-based designs; TLV809EVDLDBZR reduces functionality and package size but sacrifices dual-supply coverage and system supervision capability essential for robust embedded control.
Availability
MAX6830SDUT is available at Aetrix Electronics and suitable for portable/battery-powered equipment, automotive body control modules, and industrial IoT edge nodes requiring stable component supply across extended temperature ranges and long production lifecycles.
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) designs precision analog and mixed-signal ICs for demanding industrial, automotive, and communications applications.
The MAX6826–MAX6831 family was engineered specifically for multivoltage embedded systems needing simultaneous core/I/O rail supervision, manual reset, and watchdog functionality in minimal SOT23-6 footprint - targeting portable, automotive, and intelligent instrumentation markets.
FAQ
What is the exact VCC and VCC2 reset threshold voltage for MAX6830SDUT?
The MAX6830SDUT has a factory-trimmed VCC reset threshold of 1.575V (±1.5%) and VCC2 threshold of 0.788V (±1.5%), as defined by the 'V' and 'D' suffixes in its part number. These values are guaranteed over –40°C to +125°C and include 60ppm/°C temperature coefficient and 2×VTH hysteresis - critical for repeatable brownout response in battery-powered MAX6830SDUT deployments.
Does MAX6830SDUT support active-high or active-low reset output?
MAX6830SDUT provides an active-high push-pull RESET output, meaning it drives high during normal operation and pulls low only during reset assertion. This eliminates the need for an external pull-up resistor and simplifies interface with microcontrollers requiring high-asserted reset signals, such as many ARM Cortex-M series devices - a key distinction from MAX6826/MAX6828 variants.
Can MAX6830SDUT monitor a secondary supply below 1.0V?
Yes - MAX6830SDUT monitors VCC2 down to 0.788V (suffix 'D') with factory-trimmed accuracy, making it suitable for sub-1V rails like DDR I/O, LPDDR memory interfaces, or ultra-low-power sensor analog front-ends. Unlike adjustable-input variants (e.g., MAX6826), MAX6830SDUT requires no external resistor divider, delivering guaranteed performance without calibration effort.
What is the watchdog timeout period for MAX6830SDUT, and how is it cleared?
The MAX6830SDUT watchdog timeout is 1.6s nominal and is cleared on any rising or falling edge at the WDI pin - not just periodic toggles. This allows flexible software integration, such as setting WDI high at program start and low before each subroutine return. If WDI is left unconnected, the internal driver automatically services the timer every 1.4s, effectively disabling watchdog supervision in MAX6830SDUT applications.
Is MAX6830SDUT guaranteed to operate down to VCC = 1.0V?
Yes - MAX6830SDUT is fully specified and guaranteed to assert valid RESET output down to VCC = +1.0V, ensuring deterministic behavior during deep brownout conditions common in battery discharge profiles. This specification covers all functions: voltage monitoring, MR input response, WDI edge detection, and RESET timing - a critical reliability feature absent in many competing supervisors.
MAX6830SDUT 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 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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