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Analog Devices Inc./Maxim Integrated MAX6830TZUT
- Part No.:
- MAX6830TZUT
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6830TZUT.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:2,410
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Product details
Overview
MAX6830TZUT from Maxim Integrated is a dual ultra-low-voltage microprocessor supervisory circuit in SOT23-6 package, monitoring primary supply (VCC) and secondary supply (VCC2) with factory-trimmed thresholds, manual reset input (MR), and watchdog timer (WDI). It asserts an active-high push-pull RESET output when either supply drops below its threshold, MR is pulled low, or watchdog times out - maintaining reset for ≥140ms after recovery. Used in battery-powered embedded controllers requiring reliable brownout and software fault detection.
For engineers reviewing the MAX6830TZUT datasheet, MAX6830TZUT pinout, MAX6830TZUT application, or MAX6830TZUT equivalent, key selection considerations include its VCC2 monitor down to +0.9V, 1.6s watchdog timeout, guaranteed reset validity down to VCC = +1.0V, push-pull RESET output, and immunity to short negative VCC transients - critical for portable and automotive multivoltage systems.
Technical Context
The MAX6830TZUT implements dual independent voltage monitoring: VCC (primary) with factory-set threshold (here: 2.93V per TZ suffix) and VCC2 (secondary) with fixed +0.9V to +2.5V range (TZ corresponds to VCC2 = +0.9V). Its internal watchdog timer triggers reset if WDI remains static >1.6s, and resets on any edge transition.
Reset assertion logic combines ORed conditions - VCC < VTH, VCC2 < VTH2, MR low, or WDI timeout - with a monotonic 140ms minimum timeout delay after all conditions clear. The push-pull RESET output drives high (≥0.8×VCC) when inactive and low (≤0.3V at ISINK = 3.2mA) when asserted, eliminating external pull-up requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Reset Threshold | 2.93V (TZ suffix); ensures reliable reset initiation during brownout of 3.3V I/O rails |
| VCC2 Reset Threshold | 0.9V (factory-trimmed); monitors core supply of low-voltage µPs like ARM Cortex-M0+ |
| Reset Timeout Period | 140ms min; guarantees sufficient hold time for full µP initialization and memory stabilization |
| Watchdog Timeout | 1.6s nominal; provides robust software execution monitoring without excessive overhead |
| RESET Output Type | Active-high push-pull; eliminates need for external pull-up resistor and supports direct µP reset pin drive |
| Operating Voltage Range | VCC = +2.7V to +3.6V; matches standard 3.3V system rails while supporting down to +1.0V for valid reset assertion |
| Supply Current | 7µA (typ) at +3.6V; enables multi-year operation in coin-cell–powered IoT sensors |
Pinout & Package
MAX6830TZUT is housed in a 6-pin SOT23-6 package (JEDEC MO-178AA), footprint-compatible with industry-standard 3.3mm × 1.8mm SOT-23 variants and suitable for high-density PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RESET | Active-high push-pull reset output; drives high (≥0.8×VCC) when idle, low (≤0.3V) during reset assertion |
| 2 | GND | Ground reference for all internal comparators, timers, and output drivers |
| 3 | MR | Manual reset input (active-low); internally pulled up to VCC (50kΩ); momentary GND connection forces reset |
| 4 | WDI | Watchdog input; reset triggered if static >1.6s; cleared by rising/falling edges; disabled when floating or three-stated |
| 5 | VCC2 | Secondary supply input; factory-trimmed comparator input for monitoring +0.9V to +2.5V rails (TZ = +0.9V) |
| 6 | VCC | Primary supply input; powers device and feeds VCC monitor with 2.93V threshold (TZ suffix) |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitoring | Simultaneously supervises 3.3V I/O rail (VCC) and 0.9V core rail (VCC2), enabling complete SoC power integrity coverage |
| Guaranteed reset validity down to VCC = +1.0V | Ensures deterministic reset behavior during deep brownout, preventing runaway code execution before power collapse |
| No external components required | Integrates precision voltage references, timing capacitors, and pull-up resistors - reduces BOM count and layout area |
| Immunity to short negative VCC transients | Tolerates ≤20µs glitches down to 100mV below threshold without spurious reset, improving noise resilience in automotive environments |
| 1.6s watchdog with edge-triggered clear | Allows flexible software heartbeat placement (e.g., set/clear at different program points) to detect stuck loops more reliably than periodic toggling |
Applications
| Portable/Battery-Powered Equipment | Embedded Controllers |
|---|---|
Use Scenario: Wearable health monitor powered by CR2032 coin cell with 3.3V BLE radio and 0.9V ARM Cortex-M0+ MCU core. IC Role / Device Role / Timing Role: MAX6830TZUT monitors both rails, asserts RESET during battery sag or cold start, and enforces 140ms hold time for safe firmware boot. Use Value: Prevents corrupted sensor data capture and BLE reconnection failures caused by premature µP wake-up. | Use Scenario: Industrial PLC I/O module with isolated 3.3V communication interface and 0.9V FPGA configuration rail. IC Role / Device Role / Timing Role: MAX6830TZUT detects undervoltage on either rail and initiates controlled shutdown via watchdog timeout if firmware hangs during fieldbus polling. Use Value: Eliminates need for discrete supervisor + timer + logic, reducing failure points in safety-critical control paths. |
| Automotive Systems | Critical µP Monitoring |
Use Scenario: Automotive body controller with 3.3V CAN transceiver supply and 0.9V microcontroller core supply exposed to load-dump transients. IC Role / Device Role / Timing Role: MAX6830TZUT's immunity to ≤20µs negative VCC glitches prevents false resets during alternator switching noise. Use Value: Maintains functional safety compliance (ISO 26262 ASIL-B) by avoiding unintended ECU resets in noisy vehicle electrical environments. | Use Scenario: Medical infusion pump with dual-rail µP where core voltage dropout must trigger immediate motor stop and alarm. IC Role / Device Role / Timing Role: MAX6830TZUT's factory-trimmed 0.9V VCC2 threshold and 140ms timeout provide deterministic response to core rail failure. Use Value: Meets IEC 62304 Class C software safety requirements by guaranteeing fail-safe hardware-initiated shutdown within defined timing bounds. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6827TZUT | Same pinout and VCC/VCC2 thresholds, but features active-high push-pull RESET (identical to MAX6830TZUT) | Designed for same 3.3V/0.9V dual-rail monitoring; differs only in ordering suffix - TZUT denotes identical functionality | Select MAX6827TZUT only if legacy BOM references that part number; electrically and functionally identical to MAX6830TZUT |
| TPS3808G18DBVR | Single-supply monitor (1.8V threshold only), no VCC2 input, no watchdog, open-drain RESET, 200ms timeout | Lacks secondary rail monitoring and watchdog - suitable only for basic single-rail reset, not dual-voltage or software-fault detection | Choose only for cost-sensitive, single-rail applications where VCC2 supervision and watchdog are unnecessary |
Compared with MAX6830TZUT, MAX6827TZUT is functionally identical and interchangeable, while TPS3808G18DBVR offers reduced feature set and cannot replace MAX6830TZUT in dual-supply or watchdog-requiring designs without system-level redesign.
Availability
MAX6830TZUT is available at Aetrix Electronics and suitable for portable/battery-powered equipment, embedded controllers, and automotive systems requiring stable component supply across extended temperature ranges (-40°C to +125°C) and long production lifecycles.
Supply support for MAX6830TZUT 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, automotive, and computing applications.
The MAX6826–MAX6831 family was designed specifically for multivoltage microprocessor systems needing simultaneous primary/secondary supply monitoring, manual reset, and watchdog functionality in space-constrained SOT23 packages.
FAQ
What is the exact VCC and VCC2 reset threshold voltage for MAX6830TZUT?
The MAX6830TZUT has a VCC reset threshold of 2.93V (±3% over -40°C to +125°C) and a factory-trimmed VCC2 threshold of 0.9V. These values are defined by the "TZ" suffix in the part number and are verified across the full operating temperature range per Maxim's Electrical Characteristics table.
Does MAX6830TZUT support active-high or active-low reset output?
MAX6830TZUT provides an active-high push-pull RESET output. When reset is not asserted, RESET is driven high (≥0.8×VCC); when any fault condition occurs (VCC/VCC2 undervoltage, MR low, or WDI timeout), RESET is driven low (≤0.3V) for ≥140ms.
Can MAX6830TZUT monitor a 1.2V supply as VCC2?
No. MAX6830TZUT's VCC2 input is factory-trimmed specifically for 0.9V threshold monitoring (per TZ suffix). To monitor 1.2V, select MAX6830SDUT (S = 2.63V VCC, D = 0.788V VCC2) or MAX6830VDUT (V = 1.58V VCC, D = 0.788V VCC2) - VCC2 threshold is fixed per suffix and not user-adjustable on MAX6830 variants.
What is the watchdog timeout period of MAX6830TZUT and how is it cleared?
The MAX6830TZUT watchdog timeout period is 1.6s nominal. It is cleared by any rising or falling edge on the WDI pin - not by level-holding. This allows flexible software implementation, such as toggling WDI at different program points to detect stuck loops more effectively than simple periodic pulses.
Is MAX6830TZUT compatible with 1.8V VCC operation?
No. MAX6830TZUT is specified for VCC = +2.7V to +3.6V (per "T" suffix), matching 3.3V systems. For 1.8V VCC operation, use MAX6830WVUT (W = 1.67V VCC, V = 1.58V VCC2) or MAX6830YVUT (Y = 2.19V VCC, V = 1.58V VCC2), which are rated down to +1.53V VCC.
MAX6830TZUT 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 FAQ
1.How can I place an order for MAX6830TZUT through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6830TZUT 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 reliable?
The price and inventory of MAX6830TZUT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6830TZUT is usually 5 days.
3.What payment methods are accepted for MAX6830TZUT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6830TZUT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6830TZUT?
MAX6830TZUT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6830TZUT 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?
For technical support, including MAX6830TZUT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6830TZUT requirements.
6.How does Aetrix verify that MAX6830TZUT is sourced from the original manufacturer or authorized distributors?
All MAX6830TZUT 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 meets industry standards.
7.What is the process for return or replacement of MAX6830TZUT?
All MAX6830TZUT units undergo pre-shipment inspection (PSI). If there is an issue with MAX6830TZUT, 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 part is unused and in its original packaging.
Return procedure for MAX6830TZUT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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