My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX6829RGUT+
- Part No.:
- MAX6829RGUT+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6829RGUT+.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:982
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX6829RGUT+ from Maxim Integrated is a dual ultra-low-voltage microprocessor supervisory circuit in 6-pin SOT23 package, designed to monitor primary supply (VCC) at 2.55V ±2.7% and secondary supply (VCC2) at 2.313V ±0.6% across -40°C to +125°C, with 140ms minimum reset timeout, manual reset input (MR), and 1.6s watchdog timer - used in portable battery-powered equipment for reliable power-up/brownout detection.
For engineers reviewing the MAX6829RGUT+ datasheet, MAX6829RGUT+ pinout, MAX6829RGUT+ application, or MAX6829RGUT+ equivalent, this page delivers verified reset thresholds, VCC2 monitoring capability, push-pull active-low RESET output, MR/WDI timing behavior, and real-world substitution guidance for multivoltage embedded systems.
Technical Context
The MAX6829RGUT+ integrates two independent voltage monitors: one factory-trimmed for VCC2 at 2.313V (Z suffix), and another preprogrammed for VCC at 2.55V (R suffix), both with guaranteed operation down to VCC = +1.2V over full temperature range. It features a dedicated VCC2 pin (Pin 5), eliminating need for external resistor dividers.
Its internal architecture includes a 1.6s watchdog timer cleared by WDI edge transitions, a 50kΩ internal MR pullup, and a push-pull RESET output (active-low) that sinks ≥1.2mA at VCC ≥ 2.55V while maintaining valid logic levels down to VCC = +1.2V - enabling robust reset assertion during brownout recovery.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Threshold | 2.55V (R suffix), ±2.7% over -40°C to +125°C - sets primary supply monitoring point for 2.5V systems |
| VCC2 Threshold | 2.313V (Z suffix), ±0.6% over -40°C to +125°C - factory-trimmed secondary monitor for 2.3V I/O rails |
| Reset Timeout | 140ms minimum - ensures µP completes power stabilization before release from reset |
| Watchdog Period | 1.6s nominal - provides fail-safe software execution monitoring without external components |
| RESET Output Type | Active-low push-pull - drives low with ≥1.2mA sink capability at VCC ≥ 2.55V; no external pullup required |
| Operating Range | VCC = +1.2V to +5.5V - supports operation during deep brownout and enables use in 1.2V–3.3V multirail systems |
| Supply Current | 25µA max at -40°C to +125°C, VCC = +3.6V - enables integration into always-on battery-backed subsystems |
Pinout & Package
MAX6829RGUT+ uses a 6-pin SOT23 package (U6+1 outline, land pattern 90-0175), RoHS-compliant, with 1.27mm pitch and thermal pad not present. Pin 1 is marked by dot; device orientation follows standard SOT23 top-view convention.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RESET | Active-low push-pull reset output - asserts low on VCC/VCC2 undervoltage, MR low, or WDI timeout; holds for 140ms min after recovery |
| 2 | GND | Ground reference for all internal comparators and logic - must be connected to system ground plane with low-inductance path |
| 3 | MR | Manual-reset input, active-low, internally pulled up to VCC at 50kΩ - momentary GND connection forces system reset |
| 4 | WDI | Watchdog input - toggling within 1.6s prevents reset; unconnected or three-stated disables watchdog function |
| 5 | VCC2 | Dedicated secondary supply monitor input - connects directly to 2.3V rail; no external divider needed for Z-suffix threshold |
| 6 | VCC | Primary supply input and power source - powers internal circuitry and sets reference for MR/WDI logic thresholds |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitoring | Simultaneous VCC (2.55V) and VCC2 (2.313V) supervision with separate pins - eliminates shared-rail interaction and enables true multivoltage system reliability |
| Factory-trimmed VCC2 threshold | Z-suffix guarantees 2.313V ±0.6% over full temperature range - removes calibration burden and resistor tolerance errors in 2.3V I/O monitoring |
| Guaranteed reset validity to VCC = +1.2V | RESET output remains functional and meets VOL ≤ 0.3V spec down to VCC = +1.2V - ensures deterministic reset assertion during brownout recovery |
| No external components required | Integrated 50kΩ MR pullup, 1.6s watchdog timer, and precision bandgap references - reduces BOM count and PCB area vs discrete solutions |
| Immunity to short negative VCC transients | Withstands ≤20µs, 100mV VCC glitches without spurious reset - improves noise resilience in electrically noisy portable environments |
Applications
| Portable/Battery-Powered Equipment | Embedded Controllers |
|---|---|
Use Scenario: Power management in handheld medical devices with dual 2.5V core and 2.3V I/O supplies. IC Role / Device Role / Timing Role: Supervises both rails independently; asserts RESET if either drops below threshold during battery discharge or cold-start. Use Value: Prevents erratic MCU operation during gradual voltage sag, ensuring safe shutdown or low-power mode entry before data corruption occurs. |
Use Scenario: Industrial PLC module with isolated 2.5V logic and 2.3V communication interface. IC Role / Device Role / Timing Role: Provides synchronized reset initiation across domains; MR allows field-service reset without power cycle. Use Value: Eliminates need for separate supervisors per rail, reducing component count while guaranteeing coordinated reset timing. |
| Intelligent Instruments | Critical µP Monitoring |
Use Scenario: Precision digital multimeter with 2.5V ADC reference and 2.3V display driver supply. IC Role / Device Role / Timing Role: Monitors both analog and digital supplies; watchdog detects firmware lockup affecting measurement accuracy. Use Value: Ensures measurement integrity by forcing reset before invalid readings are displayed or stored. |
Use Scenario: Automotive body control module requiring ASIL-B–level power integrity assurance. IC Role / Device Role / Timing Role: Primary supervisor for main µP supply; RESET output drives µP's active-low reset pin with push-pull drive strength. Use Value: Delivers deterministic reset pulse with <200ns MR-to-RESET delay and guaranteed VOL ≤ 0.3V at 1.2V VCC - meeting stringent brownout timing requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar µP supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6830RGUT+ | Same VCC (2.55V) and VCC2 (2.313V) thresholds, but active-high push-pull RESET output | Requires µP with active-high reset input; incompatible with standard active-low reset pins without level-shifting | Select when interfacing with MCUs requiring high-asserted reset (e.g., certain ARM Cortex-M variants) |
| TPS3808G33DBVR | Single-supply monitor (3.3V only); no VCC2 pin; 200ms reset timeout; open-drain RESET | Lacks dual-rail capability and factory-trimmed secondary threshold - requires external divider for 2.3V monitoring | Choose for cost-sensitive single-rail designs where VCC2 monitoring is unnecessary or implemented separately |
Compared with MAX6830RGUT+, MAX6829RGUT+ provides native compatibility with active-low reset architectures and avoids level-shifter overhead; versus TPS3808G33DBVR, it delivers integrated dual-rail supervision with tighter VCC2 tolerance and push-pull drive - critical for space-constrained multivoltage systems.
Availability
MAX6829RGUT+ is available at Aetrix Electronics and suitable for portable/battery-powered equipment, embedded controllers, and intelligent instruments requiring stable component supply, long-term lifecycle support, and guaranteed performance across -40°C to +125°C.
Supply support for MAX6829RGUT+ 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, automotive, and computing applications.
The MAX6826–MAX6831 family was engineered specifically for dual-rail µP supervision in space-constrained, battery-sensitive systems - delivering factory-trimmed thresholds, integrated watchdog, and guaranteed operation down to 1.2V VCC.
FAQ
What is the exact VCC2 reset threshold voltage for MAX6829RGUT+?
The MAX6829RGUT+ has a factory-trimmed VCC2 threshold of 2.313V with ±0.6% tolerance over -40°C to +125°C (Z suffix). This value is specified in the Electrical Characteristics table under "VCC2 Reset Threshold" for the Z grade, and applies directly to Pin 5 (VCC2) without external components.
Does MAX6829RGUT+ support active-high reset output?
No, MAX6829RGUT+ provides an active-low push-pull RESET output (Pin 1). The active-high variant in the same family is MAX6830RGUT+. Using MAX6829RGUT+ with an active-high reset µP requires an external inverter or level-shifter - it cannot be reconfigured via pins or programming.
Can MAX6829RGUT+ monitor a 1.8V supply on the VCC2 pin?
No - MAX6829RGUT+ is factory-trimmed for 2.313V on VCC2 (Z suffix). To monitor 1.8V, select MAX6829SGUT+ (S suffix = 2.93V VCC, G suffix = 1.110V VCC2) or use the adjustable RESET IN pin on MAX6826/MAX6827/MAX6828 variants with external resistor divider.
What is the watchdog timeout period for MAX6829RGUT+ and how is it cleared?
The MAX6829RGUT+ watchdog timeout period is 1.6s nominal (1.12s to 2.4s over temperature). It is cleared by any rising or falling edge on WDI (Pin 4); holding WDI static for >1.6s triggers reset. The timer also clears automatically during RESET assertion or MR activation.
Is MAX6829RGUT+ pin-compatible with other devices in the MAX6826–MAX6831 family?
Yes - all MAX6826–MAX6831 devices share identical 6-pin SOT23 pinout and footprint (U6+1). However, function mapping differs: MAX6829RGUT+ uses Pin 5 as VCC2, whereas MAX6826/MAX6827/MAX6828 use Pin 5 as RESET IN. Swapping without verifying pin function may cause malfunction.
MAX6829RGUT+ 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:
- 1.11V, 2.63V
- 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
MAX6829RGUT+ FAQ
1.How can I place an order for MAX6829RGUT+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6829RGUT+ 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 MAX6829RGUT+ reliable?
The price and inventory of MAX6829RGUT+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6829RGUT+ is usually 5 days.
3.What payment methods are accepted for MAX6829RGUT+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6829RGUT+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6829RGUT+?
MAX6829RGUT+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6829RGUT+ 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 MAX6829RGUT+?
For technical support, including MAX6829RGUT+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6829RGUT+ requirements.
6.How does Aetrix verify that MAX6829RGUT+ is sourced from the original manufacturer or authorized distributors?
All MAX6829RGUT+ 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 MAX6829RGUT+ meets industry standards.
7.What is the process for return or replacement of MAX6829RGUT+?
All MAX6829RGUT+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6829RGUT+, 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 MAX6829RGUT+ part is unused and in its original packaging.
Return procedure for MAX6829RGUT+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6829RGUT+ 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…
