My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX6829SVUT-T
- Part No.:
- MAX6829SVUT-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6829SVUT-T.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:4,900
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX6829SVUT-T from Maxim Integrated is a dual ultra-low-voltage microprocessor supervisory IC in 6-pin SOT23 package, monitoring primary supply (VCC) at 2.93V and secondary supply (VCC2) at 1.575V with ±0.025V accuracy over -40°C to +125°C, featuring active-low push-pull RESET output, manual reset input (MR), watchdog timer (1.6s nominal timeout), and guaranteed reset validity down to VCC = +1.0V - used in battery-powered embedded controllers for reliable power-up/brownout protection.
For engineers reviewing the MAX6829SVUT-T datasheet, MAX6829SVUT-T pinout, MAX6829SVUT-T application, or MAX6829SVUT-T equivalent, key selection considerations include its factory-trimmed dual-threshold architecture (VCC = 2.93V, VCC2 = 1.575V), push-pull RESET output drive capability (3.2mA sink at 4.25V), 140ms minimum reset timeout, immunity to sub-20µs negative VCC transients, and operation across industrial temperature range without external components.
Technical Context
The MAX6829SVUT-T implements a dual-comparator architecture: one precision bandgap-referenced comparator monitors VCC against a fixed 2.93V threshold (S-suffix), while a second comparator monitors VCC2 against a factory-trimmed 1.575V threshold (V-suffix), both with 60ppm/°C temperature coefficient and 2×VTH hysteresis. It integrates a 1.6s watchdog timer cleared by WDI edge transitions and a 140ms reset timeout delay generator.
Its push-pull RESET output asserts low when VCC < 2.93V, VCC2 < 1.575V, MR is pulled low, or watchdog times out; RESET remains low for ≥140ms after all conditions clear. The device draws only 7µA typical ICC at VCC = +3.6V and operates with no external components, supporting stable reset assertion even during VCC decay to +1.0V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Threshold | 2.93V (S-suffix), ±0.025V over -40°C to +125°C - sets precise power-fail detection point for primary supply |
| VCC2 Threshold | 1.575V (V-suffix), ±0.025V over -40°C to +125°C - factory-trimmed secondary supply monitor for core voltage domains |
| Reset Timeout | 140ms minimum - ensures µP completes full initialization before release from reset state |
| Watchdog Timeout | 1.6s nominal (0.8s–2.6s over temp) - provides software execution supervision with configurable clearing via WDI edges |
| RESET Output Type | Active-low push-pull - drives low with 3.2mA sink capability at 4.25V, eliminating need for external pullup |
| Supply Current | 7µA typical at VCC = +3.6V, TA = -40°C to +85°C - enables use in always-on battery-backed systems |
| Operating Range | VCC = +1.2V to +5.5V, -40°C to +125°C - supports wide-input industrial and automotive-grade applications |
Pinout & Package
Package: 6-pin SOT23 (U6+1 outline, land pattern 90-0175), RoHS-compliant, lead-free option available as MAX6829SVUT+T.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - RESET | Active-low push-pull reset output | Asserts low during fault conditions; sinks up to 3.2mA; no external pullup required |
| 2 - GND | Ground reference | Common return path for VCC, VCC2, MR, WDI, and RESET; must be low-impedance |
| 3 - MR | Manual reset input (active-low) | Pulled up internally to VCC with 50kΩ; 1µs minimum pulse width; 100ns glitch rejection |
| 4 - WDI | Watchdog input | Edge-sensitive; clears 1.6s timer on rising/falling transition; disabled if left floating |
| 5 - VCC2 | Secondary supply monitor input | Direct connection to 1.575V secondary rail; factory-trimmed comparator input with 1.575V threshold |
| 6 - VCC | Primary supply input and bias source | Power source and reference for internal circuitry; monitored at 2.93V; powers RSTIN comparator |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent supply monitoring | Simultaneously supervises VCC (2.93V) and VCC2 (1.575V) with separate comparators and thresholds |
| Guaranteed reset validity to VCC = +1.0V | Ensures clean, deterministic reset assertion even during deep brownout or battery depletion |
| No external components required | Eliminates BOM cost and board space for resistors, capacitors, or discrete supervisors |
| Immunity to short negative VCC transients | Withstands ≤20µs glitches down to VTH −100mV without spurious reset assertion |
| Integrated 1.6s watchdog timer | Hardware-based software execution monitor cleared by WDI edges - prevents lockup without firmware overhead |
Applications
| Portable/Battery-Powered Equipment | Embedded Controllers |
|---|---|
|
Use Scenario: Wearable health monitor with dual-rail power (3.3V I/O, 1.8V core) operating from coin-cell battery. IC Role / Device Role / Timing Role: Supervises both rails and asserts reset if either drops below threshold during cold-start or battery sag. Use Value: Prevents corrupted sensor data acquisition and firmware crash by enforcing valid startup sequence before µP executes code. |
Use Scenario: Industrial PLC controller using ARM Cortex-M4 with separate 3.3V I/O and 1.2V core supplies. IC Role / Device Role / Timing Role: Monitors VCC (3.3V) and VCC2 (1.2V) simultaneously; triggers reset if core voltage collapses before I/O rail. Use Value: Avoids bus contention and latch-up by ensuring core logic is fully powered before peripheral initialization. |
| Intelligent Instruments | Critical µP Monitoring |
|
Use Scenario: Handheld multimeter with LCD, ADC, and flash memory requiring stable 3.0V and 1.8V supplies. IC Role / Device Role / Timing Role: Provides 140ms reset hold time and manual reset via front-panel button (MR). Use Value: Guarantees complete ADC calibration and display initialization before measurement mode activation. |
Use Scenario: Medical infusion pump controller where µP failure could endanger patient safety. IC Role / Device Role / Timing Role: Uses watchdog timer (WDI) tied to firmware heartbeat to detect infinite loops or stalled execution. Use Value: Forces hardware reset within 1.6s of software hang - meeting IEC 62304 Class C safety requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6827SVUT-T | Same VCC (2.93V) and VCC2 (1.575V) thresholds, but active-high push-pull RESET output | Requires µP with active-high reset input; incompatible with standard active-low reset pins without level translation | Select only when target µP mandates active-high reset assertion and board layout allows signal polarity change |
| MAX6831SVUT-T | Same thresholds and temperature range, but open-drain RESET output instead of push-pull | Needs external pullup resistor; supports wired-OR reset buses and bidirectional µP reset pins (e.g., MC68HC11) | Choose when system requires shared reset bus or µP has bidirectional reset I/O; adds BOM item and layout constraint |
Compared with MAX6829SVUT-T, MAX6827SVUT-T changes reset polarity (active-high), requiring µP interface redesign, while MAX6831SVUT-T replaces push-pull with open-drain output, adding external pullup and enabling multi-source reset arbitration - neither is pin-compatible, and both require PCB modifications for direct substitution.
Availability
MAX6829SVUT-T is available at Aetrix Electronics and suitable for portable/battery-powered equipment, embedded controllers, and intelligent instruments requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6829SVUT-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 industrial, medical, communications, and consumer applications, with emphasis on high-reliability, low-power, and small-footprint solutions.
The MAX6826–MAX6831 family was developed specifically for dual-rail microprocessor supervision in space-constrained, battery-sensitive systems - delivering factory-trimmed voltage monitoring, watchdog timing, and robust reset generation in 6-pin SOT23.
FAQ
What is the exact VCC and VCC2 reset threshold voltage for MAX6829SVUT-T?
The MAX6829SVUT-T has a VCC reset threshold of 2.93V (S-suffix) and a VCC2 reset threshold of 1.575V (V-suffix), both specified over -40°C to +125°C with ±0.025V tolerance. These values are factory-trimmed and documented in the Electrical Characteristics table of the MAX6826–MAX6831 datasheet. The MAX6829SVUT-T does not support user-adjustable thresholds - VCC2 is fixed, unlike the adjustable RESET IN input found on MAX6826/MAX6827/MAX6828 variants.
Does MAX6829SVUT-T support manual reset and watchdog functionality?
Yes, MAX6829SVUT-T includes both manual reset (MR) and watchdog (WDI) inputs. MR is an active-low input with internal 50kΩ pullup; asserting it low forces reset for ≥140ms after release. WDI is edge-sensitive - any rising or falling transition clears the 1.6s watchdog timer; failure to toggle WDI within that period triggers reset. Both features operate independently of VCC and VCC2 monitoring and are fully functional across the full -40°C to +125°C temperature range.
What is the RESET output configuration of MAX6829SVUT-T, and what drive strength does it provide?
The MAX6829SVUT-T features an active-low push-pull RESET output. It can sink up to 3.2mA at VCC = +4.25V, 1.2mA at VCC = +2.55V, and 50µA at VCC = +1.2V, with VOL ≤ 0.3V under all conditions. Because it is push-pull, no external pullup resistor is required - simplifying design and reducing component count. This differs from MAX6828/MAX6831 (open-drain) and MAX6827 (active-high push-pull) variants.
Can MAX6829SVUT-T monitor voltages below 1.0V, such as 0.9V core supplies?
No, MAX6829SVUT-T cannot monitor voltages below its factory-trimmed VCC2 threshold of 1.575V. While the broader MAX6826–MAX6831 family includes versions with VCC2 thresholds as low as 0.833V (E-suffix) or 0.788V (D-suffix), the MAX6829SVUT-T specifically uses the V-suffix for VCC2 = 1.575V. For sub-1.0V monitoring, consider MAX6829EVUT-T (E-suffix, 0.833V) or MAX6829DVUT-T (D-suffix, 0.788V), which share identical pinout and functionality except for the VCC2 threshold value.
Is MAX6829SVUT-T compatible with lead-free soldering processes?
Yes, MAX6829SVUT-T is qualified for lead-free reflow soldering per JEDEC J-STD-020. Its SOT23 package supports peak reflow temperatures up to +260°C (per 10-second duration), and the "-T" suffix denotes standard lead-free packaging. For explicit lead-free ordering, replace "-T" with "+T" per Maxim's ordering convention (e.g., MAX6829SVUT+T), though both versions meet RoHS and JEDEC standards. The device also withstands leaded soldering profiles with 300°C maximum lead temperature for 10 seconds.
MAX6829SVUT-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:
- 1.575V, 2.93V
- 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-23-6
MAX6829SVUT-T FAQ
1.How can I place an order for MAX6829SVUT-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6829SVUT-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 MAX6829SVUT-T reliable?
The price and inventory of MAX6829SVUT-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6829SVUT-T is usually 5 days.
3.What payment methods are accepted for MAX6829SVUT-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6829SVUT-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6829SVUT-T?
MAX6829SVUT-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6829SVUT-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 MAX6829SVUT-T?
For technical support, including MAX6829SVUT-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6829SVUT-T requirements.
6.How does Aetrix verify that MAX6829SVUT-T is sourced from the original manufacturer or authorized distributors?
All MAX6829SVUT-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 MAX6829SVUT-T meets industry standards.
7.What is the process for return or replacement of MAX6829SVUT-T?
All MAX6829SVUT-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6829SVUT-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 MAX6829SVUT-T part is unused and in its original packaging.
Return procedure for MAX6829SVUT-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6829SVUT-T 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…
