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Analog Devices Inc./Maxim Integrated MAX6352RVUK-T
- Part No.:
- MAX6352RVUK-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX6352RVUK-T.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:12,500
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Product details
Overview
The MAX6352RVUK-T from Maxim Integrated is a dual-voltage microprocessor supervisory circuit in 5-pin SOT23 package, featuring active-low open-drain reset output, precision VCC1/VCC2 threshold monitoring at 2.63V/1.58V, and guaranteed RESET validity down to VCC1 ≥ 1.0V or VCC2 ≥ 1.0V. It supports multivoltage systems requiring coordinated power-up sequencing and fault detection in portable and industrial embedded controllers.
For engineers reviewing the MAX6352RVUK-T datasheet, MAX6352RVUK-T pinout, MAX6352RVUK-T application, or MAX6352RVUK-T equivalent, key selection criteria include its dual-supply voltage thresholds (2.63V/1.58V), open-drain RST output referenced to either supply, manual-reset debouncing, low 20µA quiescent current, and operation across –40°C to +85°C.
Technical Context
The MAX6352RVUK-T monitors two independent supply rails (VCC1 and VCC2) with factory-trimmed thresholds of 2.63V and 1.58V respectively, asserting reset whenever either supply falls below its trip point. Its open-drain RST output requires an external pullup and remains valid as long as at least one supply exceeds +1.0V.
It includes a debounced TTL/CMOS-compatible manual-reset input (MR) with 1µs minimum pulse width and 100ns glitch rejection. Unlike MAX6358–MAX6360 variants, it lacks watchdog timer functionality, and unlike MAX6355–MAX6357, it does not support third-voltage monitoring via RSTIN.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Threshold | 2.63V ±0.05V at +25°C; ensures reliable reset assertion when primary supply drops below nominal 2.63V rail |
| VCC2 Threshold | 1.58V ±0.03V at +25°C; enables precise monitoring of secondary low-voltage rail (e.g., 1.6V core) |
| Supply Current | 20µA typical; minimizes standby power impact in battery-powered equipment |
| Reset Timeout | 100ms minimum; guarantees sufficient reset pulse width for μP initialization |
| Operating Temp | –40°C to +85°C; fully specified for industrial temperature range without derating |
| RESET Validity | Guaranteed while VCC1 ≥ 1.0V or VCC2 ≥ 1.0V; supports brownout detection down to ultra-low supply levels |
| MR Input | Debounced, TTL/CMOS-compatible; eliminates false resets from mechanical switch bounce or noise |
Pinout & Package
Package: 5-pin SOT23 (U5-1), surface-mount, RoHS-compliant, footprint per land pattern 90-0174.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - RST | Active-low open-drain reset output | Requires external pullup; asserts low when VCC1 < 2.63V or VCC2 < 1.58V; compatible with 1.8V–5.5V logic systems |
| 2 - GND | Ground reference | Common return path for both supply inputs and internal circuitry; must be low-impedance |
| 3 - MR | Manual-reset input | Pull low to force reset; internally debounced; valid when VCC1 > VTH1(MAX); must not exceed VCC1 |
| 4 - VCC2 | Secondary supply input | Monitors 1.58V rail; powers device if VCC2 > VCC1; voltage range: +1.2V to +5.5V |
| 5 - VCC1 | Primary supply input | Monitors 2.63V rail; powers device if VCC1 > VCC2; voltage range: +1.2V to +5.5V |
Key Features
| Feature | Design Value |
|---|---|
| Dual-voltage precision monitoring | Factory-set 2.63V/1.58V thresholds with ±0.05V accuracy at +25°C and ±0.15V over full temperature range |
| Open-drain reset output | Supports wired-OR configuration and level translation across mixed-voltage systems without additional logic |
| Low-power operation | 20µA supply current enables use in always-on battery-backed subsystems with multi-year runtime |
| Robust manual reset | Internally debounced MR input rejects transients ≤100ns and ensures clean reset initiation from pushbutton switches |
| Brownout immunity | RESET remains valid down to VCC1 = 1.0V or VCC2 = 1.0V, enabling reliable detection of deep supply sags |
Applications
| Portable Power Management | Industrial Controller Monitoring |
|---|---|
Use Scenario: Battery-powered handheld instruments with dual-rail power (e.g., 2.6V analog front-end and 1.6V digital core). IC Role / Device Role / Timing Role: Dual-supply supervisor ensuring synchronized reset during battery voltage decay or cold-start conditions. Use Value: Prevents partial initialization by holding reset until both rails stabilize above 2.63V and 1.58V, eliminating firmware lockups. | Use Scenario: PLC I/O modules operating in harsh environments with fluctuating 24V-derived rails. IC Role / Device Role / Timing Role: Fault detector that asserts reset on undervoltage of either isolated 2.63V logic or 1.58V FPGA core supply. Use Value: Guarantees system-level recovery before corrupted state propagation, with reset pulse ≥100ms for safe register clearing. |
| Multivoltage Embedded Systems | Intelligent Sensor Nodes |
Use Scenario: Edge AI sensor hub integrating 2.6V MCU and 1.6V AI accelerator, powered from shared DC-DC converter. IC Role / Device Role / Timing Role: Coordinated power-good monitor verifying both supplies meet threshold before releasing reset to both domains. Use Value: Eliminates need for discrete comparators and RC timing networks, reducing BOM count and layout area by >40%. | Use Scenario: Wireless environmental sensor node using coin-cell battery and low-power MCU with split 2.6V/1.6V supply domains. IC Role / Device Role / Timing Role: Ultra-low-quiescent supervisor maintaining reset integrity during deep sleep and wake-up transitions. Use Value: 20µA ICC enables >5-year battery life in duty-cycled operation while preserving deterministic reset behavior at 1.0V supply collapse. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-voltage supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6352MTUK-T | VCC1 threshold = 4.38V (vs. 2.63V); same 1.58V VCC2 threshold, identical pinout and function | Suitable for systems with higher primary rail (e.g., 4.3V LDO output), not for 2.6V domain monitoring | Select only if primary supply nominal is ≥4.3V; otherwise, threshold mismatch risks premature or missed reset assertion |
| TPS3808G15DBVR | Single-supply supervisor (1.5V threshold only); no VCC2 monitoring; different pinout (SOT23-6); 36µA ICC | Lacks dual-rail coordination; requires separate IC for second supply; no MR debounce built-in | Use only when monitoring one rail suffices; not a functional substitute for dual-threshold coordination in multivoltage designs |
Compared with MAX6352RVUK-T, MAX6352MTUK-T offers identical architecture but mismatched VCC1 threshold for 4.38V systems, while TPS3808G15DBVR provides single-rail supervision only and cannot replace dual-threshold coordination-making MAX6352RVUK-T uniquely suited for 2.63V/1.58V multivoltage sequencing.
Availability
MAX6352RVUK-T is available at Aetrix Electronics and suitable for portable/battery-powered equipment, industrial controller monitoring, and multivoltage embedded systems requiring stable component supply, long-term lifecycle support, and guaranteed RoHS-compliant sourcing.
Supply support for MAX6352RVUK-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 high-performance analog and mixed-signal semiconductor solutions for industrial, communications, computing, and consumer applications.
The MAX6351–MAX6360 product line delivers precision dual- and triple-voltage supervisors optimized for reliable power sequencing and fault detection in space-constrained multirail systems.
FAQ
What is the exact reset threshold voltage for VCC1 and VCC2 on the MAX6352RVUK-T?
The MAX6352RVUK-T has factory-trimmed reset thresholds of 2.63V for VCC1 and 1.58V for VCC2, specified at +25°C with ±0.05V typical tolerance and ±0.15V maximum variation over –40°C to +85°C. These values are confirmed in the Voltage Threshold Levels table and Electrical Characteristics section of the official datasheet.
Does the MAX6352RVUK-T include a watchdog timer function?
No, the MAX6352RVUK-T does not include a watchdog timer. Watchdog functionality is exclusive to the MAX6358/MAX6359/MAX6360 variants in this family. The MAX6352RVUK-T provides only dual-voltage monitoring, manual reset, and open-drain reset output-no WDI pin or timeout logic is present.
What is the output type and drive capability of the RST pin on the MAX6352RVUK-T?
The RST pin on the MAX6352RVUK-T is an active-low open-drain output requiring an external pullup resistor. It sinks up to 1.2mA at VCC ≥ 2.7V (VOL ≤ 0.3V) and up to 3.2mA at VCC ≥ 4.5V (VOL ≤ 0.4V). This configuration enables flexible voltage-level interfacing and wired-OR reset bus implementation.
Can the MAX6352RVUK-T operate with supply voltages below 2.63V or 1.58V and still assert reset?
Yes-the MAX6352RVUK-T guarantees RESET assertion when either VCC1 drops below 2.63V or VCC2 drops below 1.58V, and crucially, the RST output remains valid (driven low or high-impedance) as long as at least one supply stays ≥1.0V. This allows reliable brownout detection even during deep supply collapse.
Is the MAX6352RVUK-T pin-compatible with other devices in the MAX6351–MAX6360 family?
The MAX6352RVUK-T uses the 5-pin SOT23 package and shares identical pinout with MAX6352xxUK-T variants (e.g., MAX6352MTUK-T), but is not pin-compatible with 6-pin variants like MAX6351 or MAX6355. Pin 1 is RST (open-drain), Pin 3 is MR, Pin 4 is VCC2, Pin 5 is VCC1-no RSTIN or WDI functions are present.
MAX6352RVUK-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 2
- Voltage - Threshold:
- 1.58V, 2.63V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 100ms Minimum
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
MAX6352RVUK-T FAQ
1.How can I place an order for MAX6352RVUK-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6352RVUK-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 MAX6352RVUK-T reliable?
The price and inventory of MAX6352RVUK-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6352RVUK-T is usually 5 days.
3.What payment methods are accepted for MAX6352RVUK-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6352RVUK-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6352RVUK-T?
MAX6352RVUK-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6352RVUK-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 MAX6352RVUK-T?
For technical support, including MAX6352RVUK-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6352RVUK-T requirements.
6.How does Aetrix verify that MAX6352RVUK-T is sourced from the original manufacturer or authorized distributors?
All MAX6352RVUK-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 MAX6352RVUK-T meets industry standards.
7.What is the process for return or replacement of MAX6352RVUK-T?
All MAX6352RVUK-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6352RVUK-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 MAX6352RVUK-T part is unused and in its original packaging.
Return procedure for MAX6352RVUK-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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