My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX6827SUT+T
- Part No.:
- MAX6827SUT+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6827SUT+T.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX6827SUT+T from Maxim Integrated is a dual ultra-low-voltage microprocessor supervisory IC in 6-pin SOT23 package, monitoring primary VCC (3.08V threshold) and secondary VCC2 (2.93V threshold), with push-pull active-high RESET output, 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 MAX6827SUT+T datasheet, MAX6827SUT+T pinout, MAX6827SUT+T application, or MAX6827SUT+T equivalent, this page delivers verified circuit role, exact reset thresholds, watchdog timing, supply current down to +1.2V, and validated alternatives for multivoltage µP monitoring systems.
Technical Context
The MAX6827SUT+T implements dual independent voltage monitoring: VCC monitored at factory-trimmed 3.08V (±3% over –40°C to +125°C), and VCC2 at 2.93V, both with 60ppm/°C temperature coefficient and hysteresis. It integrates a 1.6s watchdog timer cleared by WDI edge transitions and a manual reset input with internal 50kΩ pullup.
Its push-pull active-high RESET output drives high (≥0.8×VCC) when deasserted and low (≤0.3V) when asserted, guaranteed functional down to VCC = +1.2V. The device draws only 7–25µA ICC across temperature and operates with no external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Reset Threshold | 3.08V (min 2.97V, max 3.17V at –40°C to +125°C) - sets brownout detection point for primary supply |
| VCC2 Reset Threshold | 2.93V (min 2.83V, max 3.02V at –40°C to +125°C) - factory-trimmed secondary supply monitor |
| Reset Timeout Period | 140ms minimum - ensures µP remains held in reset long enough for stable power recovery |
| Watchdog Timeout | 1.6s nominal (0.8–2.6s over temperature) - detects firmware hangs in embedded controllers |
| VCC Supply Current | 7µA typical at +3.6V, –40°C to +85°C - enables multi-year battery life in portable instruments |
| Operating Voltage Range | +1.2V to +5.5V - supports operation during deep brownout while maintaining valid RESET state |
| RESET Output Type | Push-pull active-high - eliminates need for external pullup and interfaces directly with µP reset inputs requiring high-true assertion |
Pinout & Package
Package: 6-pin SOT23 (U6+1 outline, land pattern 90-0175), RoHS-compliant lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - RESET | Active-high push-pull reset output | Drives high (≥0.8×VCC) when deasserted; sinks ≤0.3V when asserted - directly compatible with µP reset pins expecting high-true logic |
| 2 - GND | Ground reference | Common return path for all internal comparators, timer, and output stage - must be low-impedance for noise immunity |
| 3 - MR | Manual reset input (active-low) | Internal 50kΩ pullup to VCC; asserts reset when pulled low - enables hardware reset button without external components |
| 4 - WDI | Watchdog input | Edge-sensitive; clears 1.6s timer on rising/falling transition - detects µP activity failure within defined timeout window |
| 5 - VCC2 | Secondary supply monitor input | Factory-trimmed 2.93V threshold comparator input - monitors auxiliary rail (e.g., I/O or core voltage) independently of VCC |
| 6 - VCC | Primary supply input and bias source | Power source for internal circuitry and reference; also monitored at 3.08V - defines operating range and powers RESET IN divider network |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitoring | Simultaneously supervises VCC (3.08V) and VCC2 (2.93V) with separate comparators - enables robust multivoltage system reliability |
| Guaranteed RESET validity down to VCC = +1.2V | Ensures correct reset assertion even during severe brownout - prevents spurious µP execution before supply stabilization |
| No external components required | Integrates pullup resistor on MR, precision references, and timeout delay - reduces BOM count and PCB area in space-constrained designs |
| Immunity to short negative VCC transients | Withstands ≤20µs glitches 100mV below threshold without false reset - improves noise resilience in electrically noisy environments |
| 1.6s watchdog timer with edge-triggered clear | Resets only on WDI transitions (not level), preventing stuck-loop masking - increases firmware fault detection fidelity |
Applications
| Portable/Battery-Powered Equipment | Embedded Controllers |
|---|---|
Use Scenario: Handheld medical meters and IoT sensors powered by single Li-ion or coin-cell batteries. IC Role / Device Role: Dual-rail supervisor ensuring safe boot and brownout recovery for main processor and sensor interface rails. Use Value: 7µA quiescent current extends battery life; 3.08V/2.93V thresholds match common 3.3V/3.0V rail configurations. |
Use Scenario: Industrial PLC modules with isolated µP, communication ICs, and analog front-ends. IC Role / Device Role: Centralized power integrity monitor coordinating reset sequencing across multiple voltage domains. Use Value: Push-pull active-high RESET eliminates external pullup, simplifying layout; 1.6s watchdog enforces firmware liveness. |
| Intelligent Instruments | Critical µP Monitoring |
Use Scenario: Precision digital multimeters and oscilloscopes with FPGA-based signal processing and display subsystems. IC Role / Device Role: Supervisor for FPGA configuration voltage (VCC2) and µP core supply (VCC), ensuring synchronized reset release. Use Value: Factory-trimmed thresholds eliminate calibration overhead; 140ms timeout prevents premature code execution. |
Use Scenario: Automotive body control modules and safety-critical microcontroller units requiring ASIL-B–compatible supervision. IC Role / Device Role: Fail-safe reset generator asserting reset on any monitored rail collapse, MR activation, or watchdog timeout. Use Value: Valid operation down to +1.2V VCC ensures deterministic behavior during undervoltage faults; no external parts reduce field failure risk. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6827SUT-T | Same functionality and pinout, but leaded (SnPb) packaging instead of lead-free (+T) | Used where RoHS exemption applies or legacy assembly processes require Pb-based solder | Select MAX6827SUT-T only if lead-free compliance is not required and SnPb reflow is specified. |
| MAX6829SUT+T | Replaces VCC2 monitor with factory-trimmed 2.313V threshold (Z suffix); retains same VCC=3.08V and push-pull RESET | Targets systems with 2.5V secondary rail instead of 3.0V - e.g., mixed-signal SoCs with 2.5V I/O and 3.3V core | Choose MAX6829SUT+T when secondary supply is 2.5V and tighter VCC2 tolerance (±0.04V) is needed. |
Compared with MAX6827SUT+T, MAX6827SUT-T offers identical electrical performance in leaded packaging for legacy manufacturing, while MAX6829SUT+T shifts VCC2 monitoring to 2.313V for 2.5V-rail compatibility - neither is pin-compatible drop-in replacement for different threshold requirements.
Availability
MAX6827SUT+T is available at Aetrix Electronics and suitable for portable/battery-powered equipment, embedded controllers, and intelligent instruments requiring stable component supply with guaranteed lead-free compliance and extended temperature support (–40°C to +125°C).
Supply support for MAX6827SUT+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 interface applications, with focus on high-reliability industrial and automotive markets.
The MAX6826–MAX6831 product line delivers dual-supply µP supervisors optimized for ultra-low-voltage operation, minimal external components, and robust reset timing - targeting battery-powered and multirail embedded systems.
FAQ
What is the exact VCC reset threshold voltage for MAX6827SUT+T?
The MAX6827SUT+T has a factory-trimmed VCC reset threshold of 3.08V, with guaranteed min/max values of 2.97V and 3.17V across the full operating temperature range (–40°C to +125°C). This threshold is fixed by the "S" suffix per the Threshold Suffix Guide and applies specifically to the MAX6827SUT+T variant.
Does MAX6827SUT+T support monitoring a secondary voltage lower than 2.93V?
No - the MAX6827SUT+T uses pin 5 (VCC2) for factory-trimmed secondary monitoring at 2.93V and does not support user-adjustable thresholds. For sub-2.93V secondary monitoring, the MAX6826/MAX6827/MAX6828 family requires the RESET IN pin (pin 5), but MAX6827SUT+T assigns pin 5 to VCC2 and lacks RESET IN functionality.
What is the watchdog timeout period of MAX6827SUT+T and how is it cleared?
The MAX6827SUT+T features a nominal 1.6s watchdog timeout period (0.8–2.6s over temperature), cleared only by rising or falling edges on the WDI pin (pin 4). Level-holding WDI high or low for longer than the timeout triggers reset - edge sensitivity prevents masking of firmware hangs in infinite loops.
Can MAX6827SUT+T operate with VCC below 1.8V?
Yes - the MAX6827SUT+T is fully specified down to VCC = +1.2V over temperature and guarantees valid RESET output behavior (push-pull high/low states) across that range. Its minimum operating voltage is +1.2V, enabling use in deep brownout scenarios where other supervisors fail.
Is MAX6827SUT+T pin-compatible with MAX6828SUT+T?
No - although both are 6-pin SOT23 devices, MAX6827SUT+T uses pin 5 as VCC2 (2.93V monitor) and provides push-pull active-high RESET, whereas MAX6828SUT+T uses pin 5 as RESET IN (0.63V adjustable threshold) and provides open-drain RESET. Pin functions differ, making them incompatible for direct substitution.
MAX6827SUT+T 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:
- 2.93V, Adj
- 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-6
MAX6827SUT+T FAQ
1.How can I place an order for MAX6827SUT+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6827SUT+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 MAX6827SUT+T reliable?
The price and inventory of MAX6827SUT+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6827SUT+T is usually 5 days.
3.What payment methods are accepted for MAX6827SUT+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6827SUT+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6827SUT+T?
MAX6827SUT+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6827SUT+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 MAX6827SUT+T?
For technical support, including MAX6827SUT+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6827SUT+T requirements.
6.How does Aetrix verify that MAX6827SUT+T is sourced from the original manufacturer or authorized distributors?
All MAX6827SUT+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 MAX6827SUT+T meets industry standards.
7.What is the process for return or replacement of MAX6827SUT+T?
All MAX6827SUT+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6827SUT+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 MAX6827SUT+T part is unused and in its original packaging.
Return procedure for MAX6827SUT+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6827SUT+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…
