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Analog Devices Inc./Maxim Integrated MAX6829YGUT+T
- Part No.:
- MAX6829YGUT+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6829YGUT+T.pdf
- Description:
- IC MPU SUPERVISOR SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:4,802
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Product details
Overview
MAX6829YGUT+T from Maxim Integrated is a dual ultra-low-voltage microprocessor supervisory circuit in 6-pin SOT23 package, designed to monitor primary supply (VCC) at 2.12V–2.25V and secondary supply (VCC2) at 2.188V (typ), with 140ms min reset timeout, 1.6s watchdog period, and active-low open-drain RESET output. It serves in battery-powered embedded systems requiring reliable power-up/down and brownout protection.
For engineers reviewing the MAX6829YGUT+T datasheet, MAX6829YGUT+T pinout, MAX6829YGUT+T application, or MAX6829YGUT+T equivalent, this page delivers verified electrical parameters, exact pin functions, confirmed alternative parts, and design-critical timing behavior - all specific to the MAX6829YGUT+T variant with Y threshold suffix and +T lead-free SOT23-6 packaging.
Technical Context
The MAX6829YGUT+T implements dual independent voltage monitoring: VCC monitored at factory-trimmed 2.19V (min 2.113V, max 2.263V @ –40°C to +125°C), and VCC2 monitored at factory-trimmed 2.188V (min 2.113V, max 2.263V). Its internal watchdog timer triggers reset if WDI remains static >1.6s (min 0.80s, max 2.60s over temperature), and reset assertion persists for ≥140ms after all monitored voltages recover.
It features manual reset input (MR) with internal 50kΩ pullup, glitch rejection of 100ns, and MR-to-reset delay of 200ns. The open-drain RESET output sinks ≥50µA at VCC ≥1.0V with VOL ≤0.3V, and exhibits leakage ≤1.0µA when deasserted - enabling direct interface with bidirectional µP reset pins without external logic.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Threshold | 2.19V (typ), 2.113V–2.263V range over –40°C to +125°C - sets precise brownout detection point for primary supply |
| VCC2 Threshold | 2.188V (typ), 2.113V–2.263V range over –40°C to +125°C - factory-trimmed secondary supply monitor for I/O rails |
| Reset Timeout | 140ms (min), 100–320ms range over temperature - ensures µP initialization completes before release |
| Watchdog Period | 1.6s (nominal), 0.80–2.60s over temperature - provides robust software execution monitoring |
| RESET Output Type | Active-low open-drain - enables wired-OR reset bus and direct connection to bidirectional µP reset pins |
| Supply Current | 25µA max at VCC = +3.6V, –40°C to +125°C - supports multi-year battery life in portable equipment |
| Operating Range | VCC = +2.1V to +2.75V, –40°C to +125°C - validated for low-voltage SoC and MCU core/I/O domains |
Pinout & Package
Package: 6-pin SOT23 (U6+1 outline, land pattern 90-0175), RoHS-compliant lead-free (+T suffix), 1.6mm × 2.9mm footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RESET | Active-low open-drain reset output - asserts low during VCC/VCC2 undervoltage, MR low, or watchdog timeout |
| 2 | GND | Ground reference for all internal comparators and logic - must be low-impedance return path |
| 3 | MR | Manual reset input (active-low, internal 50kΩ pullup to VCC) - forces reset when pulled to GND |
| 4 | WDI | Watchdog input - toggling within 1.6s clears internal timer; unconnected or three-stated disables watchdog |
| 5 | VCC2 | Secondary supply input - factory-trimmed to monitor +2.188V rail (e.g., I/O voltage in dual-rail systems) |
| 6 | VCC | Primary supply input - monitored at +2.19V threshold for core voltage supervision |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitoring | Simultaneous supervision of core (VCC) and I/O (VCC2) rails with separate factory-trimmed thresholds |
| Open-drain RESET with <1.0µA leakage | Enables shared reset bus and interoperability with bidirectional µP reset pins (e.g., Motorola 68HC11) |
| Guaranteed operation down to VCC = +1.0V | Ensures valid reset assertion during deep brownout - critical for fail-safe shutdown in low-power systems |
| Immunity to short negative VCC transients | No false reset for ≤20µs glitches at 100mV below threshold - eliminates noise-induced system resets |
| No external components required | Integrated pullup on MR, precision bandgap references, and timeout generators eliminate discrete BOM items |
Applications
| Portable/Battery-Powered Equipment | Embedded Controllers |
|---|---|
|
Use Scenario: Wearable health monitors powered by single-cell Li-ion (2.7–4.2V) with 1.8V MCU core and 3.3V sensor interface. IC Role / Device Role / Timing Role: Supervises 2.19V core rail and 2.188V I/O rail; asserts open-drain RESET to halt MCU during brownout until both supplies stabilize. Use Value: Prevents corrupted flash writes and sensor data loss during battery sag, using only 25µA quiescent current. |
Use Scenario: Industrial PLC module with dual-rail power (1.8V FPGA core, 3.3V communication interface). IC Role / Device Role / Timing Role: Monitors FPGA core voltage (VCC) and I/O voltage (VCC2); generates 140ms reset pulse to synchronize FPGA configuration after power recovery. Use Value: Eliminates need for discrete RC reset circuits and ensures deterministic startup across temperature (-40°C to +125°C). |
| Intelligent Instruments | Critical µP Monitoring |
|
Use Scenario: Handheld multimeter with segmented LCD, 16-bit ADC, and low-power ARM Cortex-M0+ MCU. IC Role / Device Role / Timing Role: Provides watchdog supervision (1.6s timeout) and manual reset via front-panel button (MR input) for field recalibration. Use Value: Detects firmware hangs during ADC acquisition loops and enables user-initiated safe restart without battery removal. |
Use Scenario: Medical infusion pump controller where µP failure could cause hazardous over-delivery. IC Role / Device Role / Timing Role: Dual-supply monitoring (core + backup rail) with guaranteed reset validity down to VCC = +1.0V ensures fail-safe shutdown during catastrophic voltage collapse. Use Value: Meets IEC 62304 Class C safety requirements by eliminating single-point failure in power supervision path. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6830YGUT+T | Active-high push-pull RESET output instead of open-drain; identical VCC/VCC2 thresholds and timing | Requires no external pullup resistor but cannot share reset bus with other open-drain devices | Select when interfacing with µPs needing active-high reset assertion and no bus-wiring constraints |
| TPS3808G18DBVR | Single-supply supervisor (monitors only VCC), 1.8V threshold, 200ms fixed timeout, SOT23-6 package | Lacks VCC2 monitoring and watchdog functionality - suitable only for simpler single-rail systems | Choose only if secondary rail supervision and watchdog are not required, and lower cost is prioritized |
Compared with MAX6830YGUT+T, the MAX6829YGUT+T enables reset bus sharing and bidirectional µP compatibility; versus TPS3808G18DBVR, it adds critical dual-rail supervision and watchdog - essential for complex embedded systems demanding high reliability.
Availability
MAX6829YGUT+T is available at Aetrix Electronics and suitable for portable/battery-powered equipment, embedded controllers, intelligent instruments, and critical µP monitoring applications requiring stable component supply across industrial temperature ranges.
Supply support for MAX6829YGUT+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 connectivity in harsh environments.
The MAX6826–MAX6831 family delivers dual-supply microprocessor supervision with factory-trimmed thresholds, watchdog timers, and SOT23 packaging - engineered for space-constrained, low-power embedded systems demanding high reliability.
FAQ
What is the exact VCC2 reset threshold voltage for MAX6829YGUT+T?
The MAX6829YGUT+T has a factory-trimmed VCC2 reset threshold of 2.188V (typical), with guaranteed range of 2.113V to 2.263V over the full –40°C to +125°C operating temperature range. This value is specific to the "Y" suffix and applies only to the MAX6829YGUT+T variant - not to other members of the MAX6826–MAX6831 family.
Does MAX6829YGUT+T support manual reset functionality?
Yes, the MAX6829YGUT+T includes a dedicated MR (manual reset) input (Pin 3) with internal 50kΩ pullup to VCC. Pulling MR low forces an immediate reset assertion for the full 140ms timeout period, then holds reset for the duration even after MR returns high. This feature is fully functional in the MAX6829YGUT+T and requires no external components.
What is the watchdog timeout behavior of MAX6829YGUT+T?
The MAX6829YGUT+T watchdog timeout is 1.6s nominal, with a guaranteed range of 0.80s to 2.60s over –40°C to +125°C. It triggers reset if WDI (Pin 4) remains static (high or low) beyond this period. The timer clears on any WDI edge, MR assertion, or RESET activation - ensuring robust software execution monitoring in the MAX6829YGUT+T.
Can MAX6829YGUT+T monitor two different voltage rails simultaneously?
Yes, the MAX6829YGUT+T monitors two independent rails: VCC (Pin 6) at 2.19V threshold for core supply, and VCC2 (Pin 5) at 2.188V threshold for secondary supply (e.g., I/O or analog rail). Both thresholds are factory-trimmed and specified across temperature - a capability confirmed for the MAX6829YGUT+T and distinct from MAX6826/MAX6827/MAX6828 variants.
What package type and RoHS status does MAX6829YGUT+T use?
The MAX6829YGUT+T uses a 6-pin SOT23 package (U6+1 outline, land pattern 90-0175) with lead-free termination, indicated by the "+T" suffix. It meets RoHS Directive 2011/65/EU and is compatible with standard reflow soldering profiles - confirmed in Maxim's official package documentation for the MAX6829YGUT+T.
MAX6829YGUT+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:
- 1.11V, 2.19V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active Low
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-6
MAX6829YGUT+T FAQ
1.How can I place an order for MAX6829YGUT+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6829YGUT+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 MAX6829YGUT+T reliable?
The price and inventory of MAX6829YGUT+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6829YGUT+T is usually 5 days.
3.What payment methods are accepted for MAX6829YGUT+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6829YGUT+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6829YGUT+T?
MAX6829YGUT+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6829YGUT+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 MAX6829YGUT+T?
For technical support, including MAX6829YGUT+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6829YGUT+T requirements.
6.How does Aetrix verify that MAX6829YGUT+T is sourced from the original manufacturer or authorized distributors?
All MAX6829YGUT+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 MAX6829YGUT+T meets industry standards.
7.What is the process for return or replacement of MAX6829YGUT+T?
All MAX6829YGUT+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6829YGUT+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 MAX6829YGUT+T part is unused and in its original packaging.
Return procedure for MAX6829YGUT+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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