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Analog Devices Inc./Maxim Integrated MAX6356SVUT
- Part No.:
- MAX6356SVUT
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SOT-23-6
- Datasheet:
-
MAX6356SVUT.pdf
- Description:
- IC SUPERVISOR 3 CHANNEL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:1,363
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Product details
Overview
MAX6356SVUT from Maxim Integrated is a triple-voltage microprocessor supervisory circuit with precision dual-supply monitoring (VCC1 = 2.93V, VCC2 = 1.58V), active-low push-pull RST output referenced to VCC1, adjustable third-voltage input (RSTIN = 1.22V threshold), and guaranteed RESET validity down to VCC1 ≥ 1.0V or VCC2 ≥ 1.0V. It supports multivoltage embedded systems requiring reliable power-on reset and undervoltage detection.
For engineers reviewing the MAX6356SVUT datasheet, MAX6356SVUT pinout, MAX6356SVUT application, or MAX6356SVUT equivalent, this device delivers verified triple-supply supervision, factory-trimmed thresholds with ±0.05V accuracy over temperature, 20µA quiescent current, 100ms min reset pulse width, and robust manual-reset debouncing - critical for industrial controllers and battery-powered instrumentation.
Technical Context
The MAX6356SVUT integrates two independent voltage comparators for VCC1 and VCC2 monitoring plus a dedicated RSTIN comparator for a third external voltage, all feeding a single active-low push-pull reset generator. Its reset assertion logic triggers if *either* VCC1 drops below 2.93V *or* VCC2 drops below 1.58V *or* RSTIN falls below 1.22V.
It operates across -40°C to +85°C with guaranteed performance: supply current ≤50µA, reset timeout period 100–280ms, reset output low voltage ≤0.3V at 50µA sink, and RSTIN input bias current ±25nA - enabling high-impedance resistive divider configurations without loading error.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Threshold | 2.93V ±0.05V (factory-trimmed, guaranteed over -40°C to +85°C) |
| VCC2 Threshold | 1.58V ±0.05V (factory-trimmed, guaranteed over -40°C to +85°C) |
| RSTIN Threshold | 1.22V ±0.03V (enables precise third-voltage monitoring via external resistor divider) |
| Supply Current | 20µA typical (enables ultra-low-power operation in battery-backed systems) |
| Reset Pulse Width | 100ms minimum (ensures reliable µP initialization across slow-starting power rails) |
| RESET Valid Down To | VCC1 ≥ 1.0V or VCC2 ≥ 1.0V (guarantees reset assertion during deep brownout conditions) |
| Operating Temp | -40°C to +85°C (fully specified for industrial and extended-temperature applications) |
Pinout & Package
MAX6356SVUT is housed in a 6-pin SOT23 package (U6-1 outline, 21-0058) with 0.95mm pitch, 2.9mm × 1.6mm footprint, and exposed pad optional for thermal enhancement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RST | Active-low push-pull reset output referenced to VCC1; drives low to 0.3V @ 50µA sink; no external pullup required |
| 2 | GND | Analog/digital ground reference for all comparators and reset generator |
| 3 | MR | Debounced manual-reset input; asserted low forces reset; internally pulled up ~63.5kΩ to VCC1 |
| 4 | VCC2 | Secondary supply input; powers internal circuitry when VCC2 > VCC1 and monitored against 1.58V threshold |
| 5 | RSTIN | Adjustable reset comparator input; monitors third voltage with 1.22V internal reference; requires VCC1 as supply |
| 6 | VCC1 | Primary supply input; powers internal circuitry when VCC1 > VCC2 and monitored against 2.93V threshold |
Key Features
| Feature | Design Value |
|---|---|
| Triple-voltage supervision | Simultaneous monitoring of VCC1 (2.93V), VCC2 (1.58V), and external voltage via RSTIN (1.22V ref) - eliminates need for discrete comparators in multirail systems |
| Factory-trimmed thresholds | ±0.05V accuracy over full temperature range ensures consistent reset behavior without calibration |
| Low quiescent current | 20µA typical enables >10-year battery life in portable equipment with periodic wake-up supervision |
| Guaranteed reset validity | RESET remains valid down to VCC1 = 1.0V or VCC2 = 1.0V - critical for detecting deep brownouts before complete rail collapse |
| No external components | Integrated MR pullup, glitch filtering, and push-pull output eliminate BOM cost and PCB area vs. discrete solutions |
Applications
| Industrial PLC Controllers | Battery-Powered Data Loggers |
|---|---|
|
Use Scenario: Monitoring 3.3V I/O rail, 1.8V core rail, and backup battery voltage in programmable logic controllers operating in harsh environments. IC Role / Device Role / Timing Role: Triple-supply supervisor asserting active-low reset to ARM Cortex-M7 MCU upon any rail drop, with 100ms pulse ensuring firmware boot integrity. Use Value: Prevents erratic MCU operation during partial power loss by guaranteeing reset assertion even if only one rail collapses to 1.0V. |
Use Scenario: Supervising main Li-ion supply (3.0V), LDO output (1.8V), and coin-cell backup (1.5V) in environmental sensor nodes. IC Role / Device Role / Timing Role: Detects undervoltage on any of three supplies and triggers controlled shutdown sequence via RST signal to MSP430 microcontroller. Use Value: Enables deterministic low-power state retention using 20µA quiescent current and 1.22V RSTIN threshold for accurate battery voltage monitoring. |
| Multivoltage Medical Instruments | Automotive Body Control Modules |
|
Use Scenario: Ensuring safe startup of FPGA-based imaging subsystem powered by 2.5V, 1.2V, and 3.3V rails in portable ultrasound devices. IC Role / Device Role / Timing Role: Provides synchronized reset to FPGA configuration logic and analog front-end ASICs when all three rails exceed thresholds. Use Value: Eliminates need for three separate supervisors, reducing board space by 67% and improving timing correlation between reset events. |
Use Scenario: Monitoring 5V system rail, 3.3V CAN transceiver rail, and 1.2V microcontroller core rail in automotive body control units. IC Role / Device Role / Timing Role: Generates unified reset signal to Infineon AURIX TC3xx MCU when any monitored rail violates its threshold, including brownout recovery. Use Value: Guarantees reset validity down to 1.0V on either supply - essential for meeting ISO 16750-2 transient immunity 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 |
|---|---|---|---|
| MAX6355SVUT | Open-drain RST output (vs. push-pull in MAX6356SVUT); requires external pullup resistor | Suitable where level-shifting or wired-OR reset bus is needed; less drive strength than push-pull | Select MAX6355SVUT only if open-drain interface compatibility is required; otherwise MAX6356SVUT provides stronger, simpler reset drive. |
| TPS3808G33DBVR | Dual-supply monitor only (no RSTIN input); fixed 3.3V/1.6V thresholds; no third-voltage capability | Limited to dual-rail systems; cannot replace MAX6356SVUT's triple-monitoring function without adding external circuitry | Choose TPS3808G33DBVR only for cost-sensitive dual-supply applications; MAX6356SVUT remains necessary where third-voltage supervision is mandatory. |
Compared with MAX6355SVUT, MAX6356SVUT offers higher drive capability and simplified layout; compared with TPS3808G33DBVR, it uniquely supports true triple-supply monitoring without external components - making it irreplaceable in designs requiring RSTIN functionality.
Availability
MAX6356SVUT is available at Aetrix Electronics and suitable for industrial PLC controllers, battery-powered data loggers, and multivoltage medical instruments requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MAX6356SVUT 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, automotive, and computing applications, with expertise in power management and supervisory circuits.
The MAX6351–MAX6360 family was engineered specifically for multivoltage microprocessor systems needing simultaneous, factory-trimmed monitoring of two primary supplies plus an adjustable third voltage - targeting high-reliability embedded control.
FAQ
What is the exact reset threshold voltage for VCC1 and VCC2 on the MAX6356SVUT?
The MAX6356SVUT has a factory-trimmed VCC1 threshold of 2.93V (±0.05V over -40°C to +85°C) and a VCC2 threshold of 1.58V (±0.05V over temperature). These values are defined by the "SV" suffix per the Voltage Threshold Levels table and are guaranteed in production testing - not typical-only specifications.
Does the MAX6356SVUT support monitoring a third voltage, and how is it implemented?
Yes, the MAX6356SVUT supports third-voltage monitoring via its RSTIN pin, which features a precise 1.22V internal reference. An external resistive divider scales the target voltage to match this threshold. The RSTIN input draws only ±25nA, minimizing divider loading error - enabling accurate monitoring of voltages such as battery levels or auxiliary rails without additional op-amps.
What type of reset output does the MAX6356SVUT provide, and what are its drive capabilities?
The MAX6356SVUT provides an active-low push-pull reset output (RST pin) referenced to VCC1. It guarantees VOL ≤ 0.3V when sinking 50µA across the full temperature range, eliminating the need for external pullup resistors. This contrasts with open-drain variants like MAX6355SVUT and simplifies interface design with modern µPs requiring strong reset drive.
Is the MAX6356SVUT compatible with systems where supply rails fall below 1.8V during brownout conditions?
Yes - the MAX6356SVUT guarantees valid reset assertion as long as either VCC1 ≥ 1.0V or VCC2 ≥ 1.0V, per Absolute Maximum Ratings and Electrical Characteristics. This allows reliable detection of deep brownouts before complete rail collapse, a key requirement in safety-critical applications like industrial controllers and medical devices using the MAX6356SVUT.
What package and RoHS status does the MAX6356SVUT use, and how is it ordered?
The MAX6356SVUT is supplied in a 6-pin SOT23 package (U6-1 outline) with lead(Pb)-free construction. The "-T" suffix denotes tape-and-reel packaging (2500-piece minimum order). Lead-free versions are ordered using "+T" instead of "-T", per Maxim's ordering conventions - both variants are fully RoHS compliant and pin-compatible.
MAX6356SVUT 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, 2.93V, 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
MAX6356SVUT FAQ
1.How can I place an order for MAX6356SVUT through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6356SVUT 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 MAX6356SVUT reliable?
The price and inventory of MAX6356SVUT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6356SVUT is usually 5 days.
3.What payment methods are accepted for MAX6356SVUT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6356SVUT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6356SVUT?
MAX6356SVUT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6356SVUT 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 MAX6356SVUT?
For technical support, including MAX6356SVUT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6356SVUT requirements.
6.How does Aetrix verify that MAX6356SVUT is sourced from the original manufacturer or authorized distributors?
All MAX6356SVUT 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 MAX6356SVUT meets industry standards.
7.What is the process for return or replacement of MAX6356SVUT?
All MAX6356SVUT units undergo pre-shipment inspection (PSI). If there is an issue with MAX6356SVUT, 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 MAX6356SVUT part is unused and in its original packaging.
Return procedure for MAX6356SVUT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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