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Analog Devices Inc./Maxim Integrated MAX6830TZUT-T
- Part No.:
- MAX6830TZUT-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6830TZUT-T.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:7,500
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Product details
Overview
MAX6830TZUT-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 (2.313V threshold) supplies 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 battery-powered embedded systems.
For engineers reviewing the MAX6830TZUT-T datasheet, MAX6830TZUT-T pinout, MAX6830TZUT-T application, or MAX6830TZUT-T equivalent, this page delivers verified electrical parameters, exact pin functions, confirmed thermal and timing behavior across -40°C to +125°C, and real-world substitution guidance for dual-supply reset supervision.
Technical Context
The MAX6830TZUT-T integrates two independent voltage monitors: one factory-trimmed for VCC2 at 2.313V (±0.069V over -40°C to +125°C), and another preprogrammed for VCC at 3.08V (±0.07V). Its internal watchdog timer triggers reset if WDI remains static beyond 1.6s (min 1.12s, max 2.6s over temperature), and its MR input features a 50kΩ internal pullup with 200ns glitch rejection.
Reset assertion occurs when VCC falls below 3.08V, VCC2 falls below 2.313V, MR is pulled low, or WDI timeout expires; RESET remains asserted for ≥140ms after all conditions clear. The device operates with ICC ≤30µA at VCC = +3.6V and -40°C to +125°C, and maintains functional reset down to VCC = +1.2V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Threshold | 3.08V ±0.07V (preprogrammed; ensures reliable power-up reset for 3.3V I/O rails) |
| VCC2 Threshold | 2.313V ±0.069V (factory-trimmed; enables precise monitoring of 2.5V or 2.3V core supplies) |
| Reset Timeout Period | 140ms minimum (guarantees µP initialization completes before release) |
| Watchdog Timeout | 1.6s nominal (1.12–2.6s over -40°C to +125°C; prevents firmware lockup in unattended systems) |
| Operating Voltage Range | +1.2V to +5.5V (supports brownout detection down to 1.2V while maintaining reset validity) |
| Supply Current (ICC) | ≤30µA at VCC = +3.6V, -40°C to +125°C (enables multi-year battery life in portable equipment) |
| RESET Output Type | Active-high push-pull (drives high to µP reset pin without external pullup; VOH ≥0.8×VCC) |
Pinout & Package
Package: 6-pin SOT23 (U6+1 outline, land pattern 90-0175), RoHS-compliant, -40°C to +125°C operating range.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RESET | Active-high push-pull reset output; asserts high during fault and holds for ≥140ms post-recovery |
| 2 | GND | Ground reference for all internal comparators and logic; must be low-impedance return path |
| 3 | MR | Active-low manual reset input; internally pulled up to VCC (50kΩ); initiates reset on falling edge |
| 4 | WDI | Watchdog input; toggling within 1.6s clears internal timer; unconnected disables watchdog |
| 5 | VCC2 | Secondary supply monitor input; factory-trimmed comparator threshold = 2.313V |
| 6 | VCC | Primary supply monitor input; preprogrammed threshold = 3.08V; powers internal circuitry |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitoring | Simultaneous supervision of primary (3.08V) and secondary (2.313V) rails eliminates need for discrete supervisors |
| Guaranteed reset validity to VCC = +1.2V | Ensures deterministic reset state during deep brownout-no undefined output or latch-up risk |
| 1.6s watchdog timer with glitch immunity | Prevents runaway code execution; tolerates >100ns noise on WDI without false timeout |
| No external components required | Factory-trimmed thresholds, internal pullup on MR, and self-contained timing eliminate resistors/capacitors |
| Immunity to short negative VCC transients | Withstands ≤20µs, 100mV VCC glitches without spurious reset-critical for noisy automotive/industrial rails |
Applications
| Portable/Battery-Powered Equipment | Embedded Controllers |
|---|---|
|
Use Scenario: Long-life handheld medical monitor powered by single Li-ion cell with 3.3V I/O and 2.5V sensor rail. IC Role / Device Role / Timing Role: Supervises VCC (3.08V) and VCC2 (2.313V) to assert RESET during battery sag or cold-start; 140ms timeout ensures full µP boot sequence. Use Value: Prevents corrupted memory writes during undervoltage; extends usable battery range by 12% versus fixed-threshold alternatives. |
Use Scenario: Industrial PLC controller with dual-rail power (3.3V logic, 2.5V FPGA core) operating in wide-temperature environments. IC Role / Device Role / Timing Role: Monitors both rails independently; watchdog guards against firmware hang; MR enables field-service reset via front-panel button. Use Value: Eliminates need for separate VCC/VCC2 supervisors and external RC timing network-reducing BOM count by 3 parts. |
| Intelligent Instruments | Critical µP Monitoring |
|
Use Scenario: Precision digital multimeter with auto-ranging ADC, requiring clean power-up sequencing and fault recovery. IC Role / Device Role / Timing Role: Asserts RESET until both 3.3V analog supply and 2.5V reference rail stabilize; 1.6s watchdog detects stuck calibration routines. Use Value: Guarantees measurement integrity by blocking ADC operation until all supplies meet ±1% tolerance. |
Use Scenario: Safety-critical automotive body control module where µP reset must be deterministic under ESD and load-dump events. IC Role / Device Role / Timing Role: Provides fail-safe reset with VCC monitoring down to +1.2V and immunity to 20µs VCC glitches-meeting ISO 16750-2 pulse 4a requirements. Use Value: Reduces system-level validation effort by embedding AEC-Q100-aligned transient immunity directly in supervisor IC. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-supply microprocessor supervision applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6827TZUT-T | Same package and pinout; VCC threshold = 2.93V (not 3.08V); identical VCC2 = 2.313V and watchdog specs | Suitable for 2.8V–3.0V primary rails instead of 3.3V; requires revalidation of power-up timing margin | Select when primary supply nominal is 2.85V rather than 3.3V-no PCB change needed, but verify reset hold time vs. µP tRST requirement. |
| TPS3808G30DBVR | Single-supply supervisor (3.0V threshold only); no VCC2 monitor or watchdog; SOT23-6 pin-compatible but functionally reduced | Lacks secondary rail monitoring and watchdog-requires external circuitry for dual-rail or safety-critical use | Use only for cost-sensitive, single-rail applications where VCC2 supervision and watchdog are omitted from system architecture. |
Compared with MAX6830TZUT-T, MAX6827TZUT-T offers a lower VCC threshold for tighter 2.85V systems but retains identical dual-monitoring capability, while TPS3808G30DBVR sacrifices VCC2 supervision and watchdog functionality to reduce cost-making it unsuitable for applications requiring guaranteed dual-rail fault detection.
Availability
MAX6830TZUT-T is available at Aetrix Electronics and suitable for portable/battery-powered equipment, embedded controllers, and intelligent instruments requiring stable component supply across industrial temperature ranges (-40°C to +125°C).
Supply support for MAX6830TZUT-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 and mixed-signal ICs for power, sensing, and interface applications, with emphasis on reliability and integration for demanding environments.
The MAX6826–MAX6831 product line delivers compact, dual-rail microprocessor supervisors with factory-trimmed thresholds and integrated watchdog timers-targeting space-constrained, battery-operated, and safety-aware embedded systems.
FAQ
What is the exact VCC2 reset threshold voltage for MAX6830TZUT-T, and how does it vary with temperature?
The MAX6830TZUT-T has a factory-trimmed VCC2 reset threshold of 2.313V at +25°C, with min/max values of 2.238V and 2.388V across -40°C to +125°C. This 150mV total variation (±65ppm/°C typical) ensures stable secondary-rail monitoring for 2.5V supplies even in extended-temperature industrial deployments. The MAX6830TZUT-T datasheet specifies these limits in the Electrical Characteristics table under "VCC2 Reset Threshold" for suffix Z.
Does MAX6830TZUT-T support active-high or active-low reset output, and what is its drive strength?
The MAX6830TZUT-T provides an active-high push-pull RESET output, capable of sourcing ≥0.8×VCC at ISOURCE = 200µA (VCC ≥1.8V) and sinking 0.3V at ISINK = 500µA (VCC ≥1.8V). This eliminates the need for an external pullup resistor and ensures fast, rail-to-rail reset signaling compatible with modern µPs requiring active-high reset assertion. The MAX6830TZUT-T RESET pin is pin 1 in SOT23-6.
Can MAX6830TZUT-T monitor a 1.8V supply as VCC2, and what is the lowest supported VCC2 voltage?
No-MAX6830TZUT-T is configured with suffix Z, fixing its VCC2 threshold at 2.313V (designed for 2.5V rails). It cannot monitor 1.8V directly. The lowest VCC2 threshold available in the MAX6830 family is 0.788V (suffix D), but that variant is not the MAX6830TZUT-T. For 1.8V monitoring, select MAX6830DYUT-T (D suffix) or use MAX6826/MAX6827/MAX6828 with adjustable RESET IN input. The MAX6830TZUT-T VCC2 pin must be connected to a supply ≥2.24V to avoid invalid operation.
What is the watchdog timeout accuracy of MAX6830TZUT-T over temperature, and how is it cleared?
The MAX6830TZUT-T watchdog timeout is 1.6s nominal, varying from 1.12s (min) to 2.6s (max) across -40°C to +125°C. It is cleared by any rising or falling edge on WDI (pin 4), by assertion of MR (pin 3), or by RESET output assertion. The internal timer stops counting while RESET is active and resumes immediately upon release-ensuring deterministic response to software hangs. No external capacitor is needed; timing is fully internal.
Is MAX6830TZUT-T pin-compatible with other devices in the MAX6826–MAX6831 family, and what are the key pinout constraints?
Yes-MAX6830TZUT-T shares identical 6-pin SOT23 pinout with all MAX6826–MAX6831 variants: pin 1 = RESET, pin 2 = GND, pin 3 = MR, pin 4 = WDI, pin 5 = VCC2, pin 6 = VCC. However, function differs: MAX6830TZUT-T uses pin 5 for factory-trimmed VCC2 monitoring (not adjustable), while MAX6826–MAX6828 use pin 5 for RESET IN. Swapping them without circuit review risks incorrect voltage monitoring or damage. The MAX6830TZUT-T pin configuration is validated in the "Pin Description" section of the datasheet.
MAX6830TZUT-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:
- 2.313V, 3.08V
- 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
MAX6830TZUT-T FAQ
1.How can I place an order for MAX6830TZUT-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6830TZUT-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 MAX6830TZUT-T reliable?
The price and inventory of MAX6830TZUT-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6830TZUT-T is usually 5 days.
3.What payment methods are accepted for MAX6830TZUT-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6830TZUT-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6830TZUT-T?
MAX6830TZUT-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6830TZUT-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 MAX6830TZUT-T?
For technical support, including MAX6830TZUT-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6830TZUT-T requirements.
6.How does Aetrix verify that MAX6830TZUT-T is sourced from the original manufacturer or authorized distributors?
All MAX6830TZUT-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 MAX6830TZUT-T meets industry standards.
7.What is the process for return or replacement of MAX6830TZUT-T?
All MAX6830TZUT-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6830TZUT-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 MAX6830TZUT-T part is unused and in its original packaging.
Return procedure for MAX6830TZUT-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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