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Analog Devices Inc./Maxim Integrated MAX6830SVUT+T
- Part No.:
- MAX6830SVUT+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6830SVUT+T.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:1,708
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Product details
Overview
MAX6830SVUT+T 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 (1.575V factory-trimmed threshold), with push-pull active-high RESET output, manual reset input (MR), and 1.6s watchdog timeout. It ensures reliable µP reset during power-up, brownout, and software hang in battery-powered embedded systems.
For engineers reviewing the MAX6830SVUT+T datasheet, MAX6830SVUT+T pinout, MAX6830SVUT+T application, or MAX6830SVUT+T equivalent, key selection considerations include its dual-supply monitoring capability down to +1.0V VCC operation, guaranteed reset validity across -40°C to +125°C, push-pull RESET logic polarity, and factory-trimmed 1.575V VCC2 threshold for low-voltage core supplies.
Technical Context
The MAX6830SVUT+T implements independent voltage comparators for VCC (threshold = 3.08V ±0.07V at -40°C to +125°C) and VCC2 (1.575V ±0.05V), with OR-combined assertion of RESET. Its internal 1.6s watchdog timer clears on WDI edge transitions and triggers reset if no activity exceeds timeout.
Reset assertion is synchronized with a minimum 140ms timeout delay after all monitored voltages recover above thresholds or MR releases; RESET remains asserted during this period regardless of transient recovery. The device uses BiCMOS process, draws ≤25µA ICC at VCC = +3.6V over full temperature range, and supports manual reset via internal 50kΩ pullup on MR.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Threshold | 3.08V (±0.07V over -40°C to +125°C); monitors main supply like +3.3V I/O rails with hysteresis ensuring noise immunity. |
| VCC2 Threshold | 1.575V (±0.05V over -40°C to +125°C); factory-trimmed to supervise low-voltage cores such as 1.5V/1.6V processor domains. |
| RESET Output Type | Push-pull active-high; drives high-impedance µP reset pins directly without external pullup, sourcing ≥0.8×VCC at 200µA. |
| Reset Timeout Period | 140ms minimum; guarantees µP initialization completes before release, preventing premature code execution during supply stabilization. |
| Watchdog Timeout | 1.6s nominal (0.8s–2.6s over temperature); detects firmware lockups by requiring periodic WDI toggling within defined window. |
| Operating Voltage Range | +1.2V to +5.5V on VCC; enables operation during deep brownout conditions where other supervisors fail, supporting robust power sequencing. |
| Supply Current | ≤25µA at VCC = +3.6V, -40°C to +125°C; minimizes quiescent load on battery-backed or energy-constrained systems. |
Pinout & Package
Package: 6-pin SOT23 (U6+1 outline, land pattern 90-0175), RoHS-compliant lead-free construction (indicated by "+T" suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RESET | Active-high push-pull reset output; asserts high during fault conditions and holds for 140ms+ after recovery. |
| 2 | GND | Ground reference for all internal comparators, timers, and output drivers; must be low-impedance return path. |
| 3 | MR | Active-low manual reset input with internal 50kΩ pullup to VCC; momentary GND connection forces system reset. |
| 4 | WDI | Watchdog input; rising/falling edges clear 1.6s timer; unconnected or three-stated disables watchdog function. |
| 5 | VCC2 | Secondary supply monitor input; factory-trimmed comparator references 1.575V threshold for low-voltage core rails. |
| 6 | VCC | Primary supply input and power source; powers internal circuitry and sets operating range for all functions. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitoring | Simultaneously supervises +3.08V VCC and +1.575V VCC2 with separate comparators, enabling multivoltage SoC power integrity. |
| Guaranteed reset validity to VCC = +1.0V | Ensures deterministic reset behavior even during severe brownout, critical for fail-safe shutdown in portable equipment. |
| No external components required | Integrates precision voltage references, timing capacitors, and pullup resistors-reduces BOM count and PCB area vs discrete solutions. |
| Immunity to short negative VCC transients | Withstands ≤20µs, 100mV VCC glitches without spurious reset, eliminating need for additional filtering in noisy environments. |
| 1.6s watchdog with edge-triggered clear | Prevents software hangs by requiring active firmware intervention (WDI toggle), not just periodic pulses, improving fault detection fidelity. |
Applications
| Portable/Battery-Powered Equipment | Embedded Controllers |
|---|---|
Use Scenario: Wearable health monitor with dual-rail power (3.3V I/O, 1.5V sensor core) operating from coin-cell battery. IC Role / Device Role / Timing Role: Supervises both rails and asserts RESET if either drops below threshold during battery depletion or cold-temperature discharge. Use Value: Prevents corrupted sensor data logging or unsafe MCU operation when core voltage sags below 1.5V while I/O remains nominal. |
Use Scenario: Industrial PLC controller using ARM Cortex-M4 with separate 3.3V peripheral and 1.5V CPU core supplies. IC Role / Device Role / Timing Role: Monitors VCC (3.08V) and VCC2 (1.575V) to guarantee coordinated reset before CPU executes instructions post-power-up. Use Value: Eliminates race conditions between core and peripherals by enforcing minimum 140ms reset hold time after both supplies stabilize. |
| Intelligent Instruments | Critical µP Monitoring |
Use Scenario: Handheld multimeter with LCD, ADC, and µP-all powered from single Li-ion cell with DC-DC converters. IC Role / Device Role / Timing Role: Detects undervoltage on 3.3V display rail and 1.5V analog front-end supply, asserting active-high RESET to halt measurement cycles. Use Value: Avoids false readings caused by ADC reference drift or LCD ghosting during marginal supply conditions. |
Use Scenario: Medical infusion pump MCU requiring fail-safe restart upon firmware crash or power anomaly. IC Role / Device Role / Timing Role: Uses WDI to verify software liveness; triggers 140ms RESET pulse if watchdog timer expires due to hung task. Use Value: Meets IEC 62304 Class C safety requirements by providing hardware-enforced recovery independent of software state. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6827SVUT+T | Same VCC threshold (3.08V) and package, but active-low push-pull RESET output instead of active-high. | Requires inverted reset logic on µP side; unsuitable for MCUs with active-high reset inputs without level-shifting. | Select MAX6827SVUT+T only when target µP requires active-low reset assertion and board layout accommodates polarity inversion. |
| MAX6831SVUT+T | Identical VCC/VCC2 thresholds and watchdog, but open-drain RESET output instead of push-pull. | Necessitates external pullup resistor; compatible with bidirectional µP reset pins (e.g., Motorola 68HC11) without logic inversion. | Choose MAX6831SVUT+T when interfacing to µPs with shared reset buses or bidirectional I/O, accepting added component count. |
Compared with MAX6830SVUT+T, MAX6827SVUT+T provides identical monitoring but inverted reset polarity, while MAX6831SVUT+T trades push-pull drive for open-drain flexibility-both require careful validation of µP reset interface compatibility rather than drop-in replacement.
Availability
MAX6830SVUT+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 MAX6830SVUT+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, medical, and communications applications.
The MAX6826–MAX6831 family delivers dual-supply µP supervision with factory-trimmed low-voltage thresholds and integrated watchdog, targeting space-constrained, battery-sensitive systems where reliability under brownout is critical.
FAQ
What is the exact VCC2 reset threshold voltage for MAX6830SVUT+T?
The MAX6830SVUT+T 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 'V', and applies exclusively to MAX6830 variants-not adjustable via external components like the MAX6826 series.
Does MAX6830SVUT+T support active-high or active-low reset output?
The MAX6830SVUT+T features an active-high push-pull RESET output, meaning it drives high during reset assertion and returns low when all monitored supplies are valid. This is distinct from MAX6826/MAX6827 (active-low push-pull) and MAX6828/MAX6831 (open-drain). The output sources ≥0.8×VCC at 200µA when asserted high.
Can MAX6830SVUT+T monitor a 1.2V supply as VCC2?
No-MAX6830SVUT+T's VCC2 input is factory-trimmed to 1.575V and does not support user-adjustable thresholds. For monitoring 1.2V, consider MAX6826SVUT+T (with RESET IN pin and 0.63V internal reference) or MAX6830 variants with suffix 'D' (0.788V) or 'F' (1.050V), but those are different part numbers-not MAX6830SVUT+T.
What is the minimum VCC voltage at which MAX6830SVUT+T guarantees valid reset operation?
The MAX6830SVUT+T guarantees correct reset assertion and timing down to VCC = +1.2V over the full -40°C to +125°C temperature range, and down to +1.0V at 0°C to +85°C. Below +1.2V, reset output may not meet VOL/VOH specs, though internal comparators remain functional per datasheet Absolute Maximum Ratings.
How does the watchdog timer in MAX6830SVUT+T get cleared?
The MAX6830SVUT+T watchdog timer is cleared by any rising or falling edge on the WDI pin-or automatically if WDI is left unconnected (internal driver pulses low-high-low every ~1.4s). It does not require specific pulse width beyond the 50ns minimum detectable edge; toggling WDI once per 1.6s interval prevents timeout and subsequent reset assertion.
MAX6830SVUT+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 2
- Voltage - Threshold:
- 1.575V, 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
MAX6830SVUT+T FAQ
1.How can I place an order for MAX6830SVUT+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6830SVUT+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 MAX6830SVUT+T reliable?
The price and inventory of MAX6830SVUT+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6830SVUT+T is usually 5 days.
3.What payment methods are accepted for MAX6830SVUT+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6830SVUT+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6830SVUT+T?
MAX6830SVUT+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6830SVUT+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 MAX6830SVUT+T?
For technical support, including MAX6830SVUT+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6830SVUT+T requirements.
6.How does Aetrix verify that MAX6830SVUT+T is sourced from the original manufacturer or authorized distributors?
All MAX6830SVUT+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 MAX6830SVUT+T meets industry standards.
7.What is the process for return or replacement of MAX6830SVUT+T?
All MAX6830SVUT+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6830SVUT+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 MAX6830SVUT+T part is unused and in its original packaging.
Return procedure for MAX6830SVUT+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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