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Analog Devices Inc./Maxim Integrated MAX6356RVUT-T
- Part No.:
- MAX6356RVUT-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6356RVUT-T.pdf
- Description:
- IC SUPERVISOR 3 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
MAX6356RVUT-T from Maxim Integrated is a triple-voltage microprocessor supervisory circuit with active-low push-pull reset output referenced to VCC1, 2.63V VCC1 threshold, 1.58V VCC2 threshold, and integrated RSTIN input for monitoring a third voltage at 1.22V. It operates from -40°C to +85°C in a 6-pin SOT23 package and ensures system reliability in multivoltage embedded controllers.
For engineers reviewing the MAX6356RVUT-T datasheet, MAX6356RVUT-T pinout, MAX6356RVUT-T application, or MAX6356RVUT-T equivalent, key selection factors include its dual-supply monitoring with guaranteed RESET validity down to VCC1 = 1V or VCC2 = 1V, 100ms minimum reset pulse width, 20µA supply current, and RSTIN-based third-voltage supervision capability.
Technical Context
The MAX6356RVUT-T monitors three voltage rails: VCC1 (2.63V threshold), VCC2 (1.58V threshold), and an external rail via RSTIN (1.22V comparator input). Reset assertion occurs if any monitored voltage falls below its trip point, and the active-low push-pull RST output remains valid as long as either VCC1 ≥ 1V or VCC2 ≥ 1V.
It features debounced TTL/CMOS-compatible manual-reset input (MR), no external components required for dual-voltage supervision, and full temperature guarantee across -40°C to +85°C. The RSTIN input supports adjustable third-rail monitoring via external resistive divider, with ±25nA input current and 2.5mV hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Threshold | 2.63V (factory-set, ±0.05V over -40°C to +85°C) |
| VCC2 Threshold | 1.58V (factory-set, ±0.05V over -40°C to +85°C) |
| RSTIN Threshold | 1.22V (typical, ±0.03V over temperature, enables third-rail monitoring) |
| Reset Pulse Width | 100ms min (ensures reliable µP initialization across all operating conditions) |
| Supply Current | 20µA (typical at VCC1=5.5V/VCC2=3.6V, enables battery-powered operation) |
| Operating Temp | -40°C to +85°C (fully specified and guaranteed, no derating required) |
| RESET Validity | Down to VCC1 = 1V or VCC2 = 1V (ensures reset integrity during brownout) |
Pinout & Package
MAX6356RVUT-T is housed in a 6-pin SOT23 package (U6-1 outline, 90-0175 land pattern), surface-mountable with 0.95mm pitch, 2.9mm × 1.6mm footprint, and 1.1mm max height.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RST | Active-low push-pull reset output referenced to VCC1; drives low during fault or MR assertion |
| 2 | GND | Ground reference for all internal circuitry and reset output |
| 3 | MR | Debounced manual-reset input; pull low to force reset; internally pulled up (~63.5kΩ) |
| 4 | VCC2 | Second supply input; powers device when > VCC1 and monitored at 1.58V threshold |
| 5 | RSTIN | Third-voltage monitor input; asserts reset when voltage < 1.22V; powered by VCC1 |
| 6 | VCC1 | Primary supply input; powers device when > VCC2 and monitored at 2.63V threshold |
Key Features
| Feature | Design Value |
|---|---|
| Triple-voltage supervision | Monitors VCC1 (2.63V), VCC2 (1.58V), and third rail via RSTIN (1.22V) - eliminates need for separate supervisors |
| Guaranteed RESET down to 1V | Ensures valid reset state even during deep brownout on either supply rail |
| No external components | Full dual-supply supervision implemented without external resistors or capacitors |
| Low 20µA quiescent current | Enables use in always-on, battery-backed systems without significant drain |
| 100ms min reset pulse width | Meets µP power-on reset timing requirements across industrial temperature range |
Applications
| Industrial PLC Controllers | Battery-Powered Medical Monitors |
|---|---|
Use Scenario: Supervising dual-core microcontrollers with independent 2.6V and 1.6V rails plus analog sensor bias supply. IC Role / Device Role / Timing Role: Triple-rail supervisor asserting active-low RST to hold CPU in reset until all supplies stabilize. Use Value: Prevents firmware execution during undervoltage, eliminating corrupted memory writes and lockup in safety-critical control loops. | Use Scenario: Ensuring reliable boot sequence in portable ECG devices using 2.6V MCU core, 1.6V ADC, and 3.0V analog front-end. IC Role / Device Role / Timing Role: Monitoring VCC1 (2.63V), VCC2 (1.58V), and third rail (via RSTIN) to validate all subsystems before enabling Bluetooth transmission. Use Value: Guarantees 100ms reset pulse and operation down to 1V per rail, extending usable battery life while maintaining functional safety compliance. |
| Multivoltage IoT Edge Nodes | Intelligent Power Meters |
Use Scenario: Managing power sequencing in LoRaWAN gateways with 2.6V SoC, 1.6V RF transceiver, and 3.3V interface logic. IC Role / Device Role / Timing Role: Using RSTIN to supervise a third rail (e.g., 3.3V LDO output) via resistive divider, synchronizing reset across heterogeneous subsystems. Use Value: Eliminates need for discrete voltage detectors and RC timers, reducing BOM count and PCB area while improving timing accuracy. | Use Scenario: Supervising metering ICs with split-rail supplies (2.6V digital core, 1.6V precision ADC, 5.0V isolation barrier). IC Role / Device Role / Timing Role: Providing fail-safe reset assertion when any rail drops below threshold, including third rail derived from isolated 5V supply. Use Value: Maintains metrological integrity by preventing partial initialization during AC line sags, meeting IEC 62053-21 accuracy requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar triple-voltage supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6355RVUT-T | Open-drain RST output (vs. push-pull); identical thresholds and RSTIN specs | Requires external pull-up resistor; unsuitable for direct drive of µP reset pins needing active drive | Select when interfacing with open-drain bus architectures or level-shifting requirements exist |
| TPS3808G33DBVR | Dual-voltage only (no RSTIN); 3.3V fixed VDD threshold, 2.93V adjustable second threshold via resistor | Lacks third-rail monitoring; requires external resistor network for second threshold tuning | Select when only two rails require supervision and design flexibility for threshold adjustment is preferred |
Compared with MAX6356RVUT-T, MAX6355RVUT-T offers identical voltage monitoring but lacks active drive capability, while TPS3808G33DBVR provides adjustable dual-threshold supervision without integrated third-rail support-making MAX6356RVUT-T uniquely suited for compact triple-rail systems requiring guaranteed push-pull reset assertion.
Availability
MAX6356RVUT-T is available at Aetrix Electronics and suitable for industrial PLC controllers, battery-powered medical monitors, multivoltage IoT edge nodes, intelligent power meters, and embedded computing systems requiring stable component supply across extended temperature ranges.
Supply support for MAX6356RVUT-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, communications, and computing applications.
The MAX6351–MAX6360 family delivers multivoltage µP supervision with factory-trimmed thresholds, low power, and robust reset timing-targeted at space-constrained embedded systems demanding high reliability under voltage transients.
FAQ
What is the exact reset threshold voltage for VCC1 and VCC2 on the MAX6356RVUT-T?
The MAX6356RVUT-T has a factory-set VCC1 threshold of 2.63V (±0.05V over -40°C to +85°C) and a VCC2 threshold of 1.58V (±0.05V over temperature). These values are laser-trimmed and guaranteed in production test, not typical-only specifications. The "RV" suffix in MAX6356RVUT-T directly encodes these thresholds per Maxim's ordering nomenclature.
Does the MAX6356RVUT-T provide supervision for a third voltage rail, and how is it implemented?
Yes, the MAX6356RVUT-T includes an RSTIN pin that monitors a third voltage rail using an internal 1.22V comparator. To supervise voltages above 1.22V, connect an external resistive divider between the rail and RSTIN, referenced to GND. The RSTIN input draws only ±25nA, ensuring minimal loading, and its voltage must not exceed VCC1. This feature is confirmed in the MAX6356-specific pin description and electrical characteristics tables.
What type of reset output does the MAX6356RVUT-T have, and what are its drive capabilities?
The MAX6356RVUT-T features an active-low push-pull reset output (RST pin) referenced to VCC1. It sinks 1.2mA at ≤0.3V when VCC1 ≥ 2.7V, and sources 800µA at VCC1 − 1.5V when VCC1 > VTH1(MAX). This eliminates the need for external pull-up resistors and ensures direct compatibility with standard µP reset inputs requiring active drive, unlike open-drain alternatives such as MAX6355RVUT-T.
How does the MAX6356RVUT-T ensure reset validity during low-supply conditions?
The MAX6356RVUT-T guarantees valid reset output as long as either VCC1 ≥ 1V or VCC2 ≥ 1V - a critical feature for brownout resilience. This is achieved through internal charge-pump-assisted output stage design and rail-independent logic, verified across the full -40°C to +85°C range. The specification appears in both Absolute Maximum Ratings and Electrical Characteristics sections, confirming operation far below nominal thresholds.
Is the MAX6356RVUT-T compatible with lead-free assembly processes, and what packaging details apply?
Yes, MAX6356RVUT-T is offered in RoHS-compliant, lead(Pb)-free packaging. The "-T" suffix denotes tape-and-reel packaging in 6-pin SOT23 (U6-1 outline), with land pattern 90-0175. Lead-free variants are ordered using "+T" instead of "-T". The device uses BiCMOS process technology and is rated for reflow soldering per JEDEC J-STD-020, with maximum peak temperature of 260°C.
MAX6356RVUT-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:
- 3
- Voltage - Threshold:
- 1.58V, 2.63V, Adj
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active Low
- Reset Timeout:
- 100ms Minimum
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-6
MAX6356RVUT-T FAQ
1.How can I place an order for MAX6356RVUT-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6356RVUT-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 MAX6356RVUT-T reliable?
The price and inventory of MAX6356RVUT-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6356RVUT-T is usually 5 days.
3.What payment methods are accepted for MAX6356RVUT-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6356RVUT-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6356RVUT-T?
MAX6356RVUT-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6356RVUT-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 MAX6356RVUT-T?
For technical support, including MAX6356RVUT-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6356RVUT-T requirements.
6.How does Aetrix verify that MAX6356RVUT-T is sourced from the original manufacturer or authorized distributors?
All MAX6356RVUT-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 MAX6356RVUT-T meets industry standards.
7.What is the process for return or replacement of MAX6356RVUT-T?
All MAX6356RVUT-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6356RVUT-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 MAX6356RVUT-T part is unused and in its original packaging.
Return procedure for MAX6356RVUT-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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