My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX6829VDUT+
- Part No.:
- MAX6829VDUT+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6829VDUT+.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:1,205
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX6829VDUT+ from Maxim Integrated is a dual ultra-low-voltage microprocessor supervisory circuit in 6-pin SOT23 package, monitoring primary VCC (1.53V–2.0V range) and secondary VCC2 (1.575V threshold, ±0.05V tolerance) with push-pull active-low RESET output, manual reset input (MR), and 1.6s watchdog timeout. It ensures reliable power-on reset and brownout protection in battery-powered embedded controllers.
For engineers reviewing the MAX6829VDUT+ datasheet, MAX6829VDUT+ pinout, MAX6829VDUT+ application, or MAX6829VDUT+ equivalent, key selection criteria include its factory-trimmed 1.575V VCC2 threshold, guaranteed reset validity down to VCC = +1.2V, 140ms minimum reset timeout, immunity to short negative VCC transients, and compatibility with multivoltage systems requiring dual-supply monitoring.
Technical Context
The MAX6829VDUT+ integrates two independent voltage monitors: one for primary VCC (programmable via suffix 'V' = 1.53V–2.0V operating range) and a factory-trimmed comparator for VCC2 at 1.575V (±0.05V over –40°C to +125°C). Its internal 1.6s watchdog timer clears on any WDI edge and triggers reset if no transition occurs within timeout.
It features a push-pull RESET output with VOL ≤ 0.3V at ISINK = 100µA (VCC ≥ 1.2V), MR with internal 50kΩ pullup, and operates across –40°C to +125°C with supply current as low as 25µA (max) at full temperature range. No external components are required for basic supervision.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Operating Range | +1.53V to +2.0V - supports core supply rails of ultra-low-power MCUs and SoCs |
| VCC2 Threshold | 1.575V (min 1.521V, max 1.629V @ –40°C to +125°C) - factory-trimmed for precise secondary rail monitoring |
| Reset Timeout Period | 140ms (min), 320ms (max) - ensures sufficient hold time for stable processor initialization |
| Watchdog Timeout | 1.6s nominal (0.80s–2.60s over temp) - provides robust software execution monitoring |
| RESET Output Type | Active-low push-pull - drives low without external pull-up, compatible with standard µP reset inputs |
| Supply Current (ICC) | 25µA (max @ –40°C to +125°C, VCC = +1.8V) - enables multi-year battery life in portable equipment |
| Reset Valid Down to VCC | +1.2V (guaranteed) - maintains correct reset assertion during deep brownout conditions |
Pinout & Package
MAX6829VDUT+ is housed in a RoHS-compliant 6-pin SOT23 package (outline 21-0058, land pattern 90-0175), measuring 2.9mm × 1.6mm × 1.1mm, optimized for space-constrained portable and embedded designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - RESET | Active-low push-pull reset output | Drives low during fault conditions (VCC/VCC2 undervoltage, MR assert, or WDI timeout); returns high after timeout completes |
| 2 - GND | Ground reference | Common return path for all internal comparators, timers, and output stage; must be low-impedance |
| 3 - MR | Manual reset input (active-low) | Pulled up internally to VCC (50kΩ); asserting low forces reset for ≥140ms after release |
| 4 - WDI | Watchdog input | Edge-sensitive; toggling within 1.6s prevents reset; left floating disables watchdog function |
| 5 - VCC2 | Secondary supply monitor input | Direct connection to monitored 1.575V rail; no external divider needed - factory-calibrated threshold |
| 6 - VCC | Primary supply input and bias source | Supplies internal circuitry and powers MR/WDI/RSTIN comparators; defines operating voltage range (1.53V–2.0V) |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitoring | Simultaneously supervises primary VCC (1.53V–2.0V) and secondary VCC2 (1.575V fixed) without shared thresholds or calibration |
| Guaranteed reset validity down to VCC = +1.2V | Ensures deterministic reset behavior even during severe brownout - critical for fail-safe embedded operation |
| 1.6s watchdog timer with edge-triggered clear | Prevents software lockup by requiring periodic WDI transitions - immune to stuck-high/low states |
| No external components required | Eliminates BOM cost and layout area for resistors, capacitors, or trimming networks in baseline supervision |
| Immunity to short negative VCC transients | Tolerates ≤20µs glitches down to 100mV below threshold without spurious reset - improves noise resilience |
Applications
| Portable/Battery-Powered Equipment | Embedded Controllers |
|---|---|
|
Use Scenario: Long-life coin-cell or Li-ion powered IoT sensor nodes with dual-rail MCU (core + I/O). IC Role / Device Role / Timing Role: Monitors both 1.8V I/O supply and 1.575V core supply; asserts RESET if either drops below threshold during cold start or battery sag. Use Value: Prevents erratic MCU boot due to marginal core voltage, extending functional battery life by avoiding repeated failed startups. |
Use Scenario: Industrial PLC controller with separate 1.8V logic and 1.575V FPGA configuration rail. IC Role / Device Role / Timing Role: Provides synchronized reset assertion across both supplies; guarantees FPGA config integrity before logic initialization. Use Value: Eliminates configuration corruption during power ramp, reducing field failures in mission-critical control systems. |
| Intelligent Instruments | Critical µP Monitoring |
|
Use Scenario: Handheld multimeter with ultra-low-power MCU and precision ADC reference supply. IC Role / Device Role / Timing Role: Supervises main 1.8V system rail and 1.575V reference buffer supply; uses MR for user-initiated self-test reset. Use Value: Ensures measurement accuracy by preventing ADC operation during unstable reference voltage conditions. |
Use Scenario: Medical infusion pump MCU requiring fail-safe power sequencing and watchdog supervision. IC Role / Device Role / Timing Role: Dual-monitoring ensures both processor core and safety-monitoring peripheral rails are valid before enabling motor drivers. Use Value: Meets IEC 62304 Class C requirements by guaranteeing deterministic reset under brownout and software hang conditions. |
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 |
|---|---|---|---|
| MAX6830VDUT+ | Active-high push-pull RESET output; identical VCC/VCC2 specs and watchdog timing | Required where host µP expects active-high reset assertion (e.g., certain ARM Cortex-M variants) | Select MAX6830VDUT+ only when system-level reset polarity mandates high-active signaling |
| MAX6829SDUT+ | VCC threshold set to 2.85V–3.00V (suffix 'S'); same VCC2 = 1.575V, push-pull RESET, and watchdog | Suitable for systems with 3.3V primary rail and 1.575V secondary rail (e.g., mixed-signal SoC platforms) | Choose MAX6829SDUT+ when primary supply is 3.3V instead of 1.8V - preserves identical secondary supervision capability |
Compared with MAX6829VDUT+, MAX6830VDUT+ changes reset polarity but retains identical monitoring accuracy and timing, while MAX6829SDUT+ shifts primary threshold to 2.85V–3.00V - both preserve the critical 1.575V VCC2 supervision and 1.6s watchdog, enabling drop-in substitution where VCC range or RESET polarity aligns.
Availability
MAX6829VDUT+ is available at Aetrix Electronics and suitable for portable/battery-powered equipment, embedded controllers, intelligent instruments, and critical µP monitoring requiring stable component supply across industrial temperature range (–40°C to +125°C).
Supply support for MAX6829VDUT+ 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 product line delivers compact, ultra-low-power dual-supply supervisors targeting battery-operated and multivoltage embedded systems where reliability under brownout and software fault conditions is essential.
FAQ
What is the exact VCC2 reset threshold voltage for MAX6829VDUT+ and how tightly is it specified?
The MAX6829VDUT+ has a factory-trimmed VCC2 reset threshold of 1.575V, with guaranteed min/max values of 1.521V and 1.629V across the full –40°C to +125°C temperature range. This specification is explicitly listed in the Electrical Characteristics table under "VCC2 Reset Threshold" for suffix 'V', confirming tight process calibration without need for external adjustment.
Does MAX6829VDUT+ support active-high reset output, or is it fixed to active-low?
MAX6829VDUT+ provides an active-low push-pull RESET output only. The device family assigns reset polarity by part number: MAX6829 variants (including MAX6829VDUT+) use active-low, while MAX6830 variants provide active-high. There is no configuration option or pin strapping to change polarity on MAX6829VDUT+.
Can MAX6829VDUT+ monitor a secondary supply lower than 1.575V, such as 1.2V or 0.9V?
No - MAX6829VDUT+ is factory-trimmed exclusively for 1.575V VCC2 monitoring. For sub-1.5V secondary rails, alternative devices like MAX6829IDUT+ (1.388V) or MAX6829HDUT+ (1.313V) are specified. The 'V' suffix denotes the 1.575V threshold; selecting a different suffix changes the VCC2 trip point.
What is the minimum pulse width required on the WDI pin to prevent reset assertion in MAX6829VDUT+?
The MAX6829VDUT+ requires a minimum WDI pulse width of 50ns to reliably clear the watchdog timer. This value is specified in the Electrical Characteristics table under "WDI Pulse Width (Note 2)" and applies across the full operating temperature range. Shorter pulses may not register as valid edges.
Is MAX6829VDUT+ pin-compatible with other devices in the MAX6826–MAX6831 family, such as MAX6826 or MAX6828?
Yes - all MAX6826–MAX6831 devices share identical 6-pin SOT23 pinout and footprint (U6+1 package). However, functional differences exist: MAX6829VDUT+ uses VCC2 monitoring (pin 5), while MAX6826/MAX6827/MAX6828 use pin 5 as RESET IN (adjustable threshold). Swapping requires verifying pin function alignment in the target application.
MAX6829VDUT+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 2
- Voltage - Threshold:
- 0.788V, 1.58V
- 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
MAX6829VDUT+ FAQ
1.How can I place an order for MAX6829VDUT+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6829VDUT+ 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 MAX6829VDUT+ reliable?
The price and inventory of MAX6829VDUT+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6829VDUT+ is usually 5 days.
3.What payment methods are accepted for MAX6829VDUT+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6829VDUT+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6829VDUT+?
MAX6829VDUT+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6829VDUT+ 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 MAX6829VDUT+?
For technical support, including MAX6829VDUT+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6829VDUT+ requirements.
6.How does Aetrix verify that MAX6829VDUT+ is sourced from the original manufacturer or authorized distributors?
All MAX6829VDUT+ 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 MAX6829VDUT+ meets industry standards.
7.What is the process for return or replacement of MAX6829VDUT+?
All MAX6829VDUT+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6829VDUT+, 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 MAX6829VDUT+ part is unused and in its original packaging.
Return procedure for MAX6829VDUT+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6829VDUT+ Tags
-
MIC826SYMT-TR
Microchip Technology
-
APX803S-31SA-7
Diodes Incorporated
-
APX803L20-29SA-7
Diodes Incorporated
-
TPS3828-33DBVR
Texas Instruments
-
V6340RSP3B+
EM Microelectronic
-
EM6325CXSP5B-2.9+
EM Microelectronic
-
MCP120T-300I/TT
Microchip Technology
-
MCP130T-315I/TT
Microchip Technology
-
MCP120T-475I/TT
Microchip Technology
-
MCP111T-300E/TT
Microchip Technology
-
MCP120T-315I/TT
Microchip Technology
-
MCP809T-315I/TT
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
