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Analog Devices Inc./Maxim Integrated MAX6352SYUK+T
- Part No.:
- MAX6352SYUK+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX6352SYUK+T.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,562
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Product details
Overview
MAX6352SYUK+T from Maxim Integrated is a dual-voltage microprocessor supervisory circuit in 5-pin SOT23 package, featuring active-low open-drain reset output referenced to VCC1, precision factory-set thresholds of 2.93V (VCC1) and 2.19V (VCC2), 20µA supply current, and guaranteed RESET validity down to VCC1 ≥ 1.0V or VCC2 ≥ 1.0V. It supports multivoltage systems in portable and industrial embedded applications.
For engineers reviewing the MAX6352SYUK+T datasheet, MAX6352SYUK+T pinout, MAX6352SYUK+T application, or MAX6352SYUK+T equivalent, key selection criteria include dual-supply monitoring capability, open-drain reset architecture compatible with level-shifting, temperature-stable threshold hysteresis, and manual-reset debouncing without external components.
Technical Context
The MAX6352SYUK+T monitors two independent supply rails (VCC1 and VCC2) and asserts its open-drain RST output when either drops below its respective factory-trimmed threshold-2.93V for VCC1 and 2.19V for VCC2-with ±0.05V accuracy over -40°C to +85°C. Its reset timeout period is guaranteed between 100ms and 280ms after valid supply recovery.
No watchdog timer or third-voltage monitor is present; this variant excludes WDI and RSTIN pins. The device uses BiCMOS process technology, achieves 20ppm/°C reset threshold tempco, and maintains functional reset assertion as long as at least one supply remains ≥1.0V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Threshold | 2.93V ±0.05V at +25°C; ensures reliable reset assertion when primary supply falls below nominal 2.93V rail |
| VCC2 Threshold | 2.19V ±0.05V at +25°C; enables precise monitoring of secondary low-voltage rail such as 2.2V I/O or core logic |
| Supply Current | 20µA typical; minimizes quiescent power draw in battery-powered or energy-sensitive systems |
| Reset Timeout | 100–280ms; provides sufficient hold time for microprocessor initialization after power stabilization |
| Operating Temp | -40°C to +85°C; qualified for industrial and extended-temperature embedded deployments |
| RESET Valid Down To | VCC1 ≥ 1.0V or VCC2 ≥ 1.0V; guarantees functional reset state during brownout or deep undervoltage conditions |
| Package | 5-pin SOT23; surface-mount footprint compatible with high-density PCB layouts and automated assembly |
Pinout & Package
MAX6352SYUK+T is housed in a RoHS-compliant 5-pin SOT23 package (package code U5-1), with 0.95mm pitch, 2.9mm × 1.6mm body size, and thermal pad omitted. Pin 1 is RST (open-drain), Pin 2 is GND, Pin 3 is MR (manual reset input), Pin 4 is VCC2, and Pin 5 is VCC1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - RST | Active-low open-drain reset output | Requires external pull-up; interfaces directly with µP reset inputs across voltage domains via configurable pull-up resistor |
| 2 - GND | Ground reference | Common return path for both monitored supplies and internal circuitry; must be low-impedance |
| 3 - MR | Debounced manual-reset input | Pull low to force reset; internally debounced to reject <100ns glitches; no external RC needed |
| 4 - VCC2 | Secondary supply input & monitor rail | Monitors 2.19V threshold; powers internal circuitry when VCC2 > VCC1; must not exceed +6V |
| 5 - VCC1 | Primary supply input & monitor rail | Monitors 2.93V threshold; powers internal circuitry when VCC1 > VCC2; defines RST pull-up reference if used |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitoring | Simultaneously tracks VCC1 (2.93V) and VCC2 (2.19V) with separate trip points-enables robust power sequencing in 2-rail systems without external comparators |
| Open-drain RST output | Allows level translation and wired-OR reset bus configuration; supports pull-up to any voltage ≤6V, independent of VCC1/VCC2 |
| Guaranteed operation down to 1.0V | Ensures valid reset assertion even during severe brownout-critical for fail-safe shutdown in industrial controllers |
| Factory-trimmed precision thresholds | Eliminates need for external resistor dividers or calibration; reduces BOM count and layout area in space-constrained designs |
| Low 20µA quiescent current | Extends battery life in portable equipment; enables always-on supervision in low-power IoT edge nodes |
Applications
| Portable/Battery-Powered Equipment | Industrial Controllers |
|---|---|
Use Scenario: Supervising dual-rail power in handheld medical devices with 2.9V main supply and 2.2V sensor interface rail. IC Role / Device Role / Timing Role: Dual-voltage supervisor asserting open-drain reset to ARM Cortex-M0 MCU upon either rail collapse. Use Value: Prevents erratic MCU behavior during battery discharge by guaranteeing reset until both rails stabilize above 2.93V and 2.19V respectively. | Use Scenario: Monitoring redundant 2.9V and 2.2V supplies in programmable logic controller (PLC) I/O modules. IC Role / Device Role / Timing Role: Fault-detection supervisor triggering system-level watchdog reset when either supply dips below spec. Use Value: Enables deterministic recovery from transient supply faults without requiring firmware intervention or external timing circuits. |
| Intelligent Instruments | Multivoltage Systems |
Use Scenario: Power integrity assurance in portable spectrum analyzers using 2.9V FPGA core and 2.2V ADC analog rail. IC Role / Device Role / Timing Role: Dual-threshold supervisor providing synchronized reset pulse to FPGA and ADC upon undervoltage detection. Use Value: Eliminates need for discrete voltage detectors and OR-gate logic-reducing component count and board area by 40%. | Use Scenario: Coordinating startup sequencing between 2.9V processor domain and 2.2V peripheral domain in automotive infotainment head units. IC Role / Device Role / Timing Role: Voltage-monitoring supervisor ensuring processor reset remains asserted until both domains reach stable operating voltage. Use Value: Prevents race conditions during cold start by enforcing strict dual-rail power-good sequencing before boot begins. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-voltage supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6353SYUK+T | Push-pull RST output referenced to VCC1; same thresholds and package | Requires VCC1-referenced reset load; incompatible with level-shifted or mixed-voltage reset buses | Select when direct drive into µP reset pin is preferred and no level translation is needed |
| TPS3808G18DBVR | Single-supply supervisor (1.8V threshold); 5-pin SOT23; no VCC2 monitor | Only monitors one rail; lacks dual-threshold capability and cross-rail reset coordination | Choose only if system uses single regulated rail and cost sensitivity outweighs dual-monitoring requirement |
Compared with MAX6352SYUK+T, MAX6353SYUK+T offers push-pull drive but sacrifices open-drain flexibility, while TPS3808G18DBVR reduces functionality to single-rail monitoring-making MAX6352SYUK+T the only option supporting true dual-threshold, level-agnostic reset assertion in compact 5-pin SOT23.
Availability
MAX6352SYUK+T is available at Aetrix Electronics and suitable for portable/battery-powered equipment, industrial controllers, intelligent instruments, and multivoltage systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6352SYUK+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, computing, communications, and consumer applications.
The MAX6351–MAX6360 product line delivers dual- and triple-voltage microprocessor supervisors optimized for reliability-critical embedded systems where simultaneous multi-rail power monitoring and fail-safe reset generation are essential.
FAQ
What is the exact reset threshold voltage for VCC1 and VCC2 on the MAX6352SYUK+T?
The MAX6352SYUK+T has factory-trimmed reset thresholds of 2.93V for VCC1 and 2.19V for VCC2, specified with ±0.05V tolerance at +25°C and maintained across -40°C to +85°C. These values are confirmed in the Voltage Threshold Levels table and Electrical Characteristics section of the official datasheet, and apply exclusively to the SY suffix variant of the MAX6352 series.
Does the MAX6352SYUK+T include a watchdog timer function?
No, the MAX6352SYUK+T does not include a watchdog timer. Watchdog functionality is exclusive to MAX6358/MAX6359/MAX6360 variants, which feature WDI pins and dual-mode timeout periods. The MAX6352SYUK+T is a dual-voltage supervisor only, with RST, MR, VCC1, VCC2, and GND terminals-no WDI or RSTIN pins are present.
What is the output type and drive capability of the RST pin on MAX6352SYUK+T?
The RST pin on MAX6352SYUK+T is an active-low open-drain output. It sinks up to 1.2mA when VCC1 or VCC2 ≥ 2.7V (VOL ≤ 0.3V), and remains functional down to VCC1 ≥ 1.0V or VCC2 ≥ 1.0V. An external pull-up resistor is required; recommended values range from 10kΩ to 100kΩ depending on bus capacitance and rise-time requirements.
Can MAX6352SYUK+T monitor three voltage rails?
No, MAX6352SYUK+T monitors exactly two voltage rails: VCC1 and VCC2. Three-rail monitoring is supported only by MAX6355/MAX6356/MAX6357 variants, which include the RSTIN pin for a third adjustable threshold (typically 1.22V). The MAX6352SYUK+T pinout omits RSTIN and has no provision for external voltage divider configuration.
Is the MAX6352SYUK+T pin-compatible with other MAX635x variants in the same package?
MAX6352SYUK+T shares the 5-pin SOT23 footprint with MAX6353SYUK+T and MAX6354SYUK+T, but pin functions differ: MAX6353 outputs push-pull RST referenced to VCC1, while MAX6354 outputs push-pull RST referenced to VCC2. MAX6352SYUK+T's open-drain RST is electrically distinct-direct substitution requires verification of reset bus topology and pull-up configuration.
MAX6352SYUK+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 2
- Voltage - Threshold:
- 2.19V, 2.93V
- 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
MAX6352SYUK+T FAQ
1.How can I place an order for MAX6352SYUK+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6352SYUK+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 MAX6352SYUK+T reliable?
The price and inventory of MAX6352SYUK+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6352SYUK+T is usually 5 days.
3.What payment methods are accepted for MAX6352SYUK+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6352SYUK+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6352SYUK+T?
MAX6352SYUK+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6352SYUK+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 MAX6352SYUK+T?
For technical support, including MAX6352SYUK+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6352SYUK+T requirements.
6.How does Aetrix verify that MAX6352SYUK+T is sourced from the original manufacturer or authorized distributors?
All MAX6352SYUK+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 MAX6352SYUK+T meets industry standards.
7.What is the process for return or replacement of MAX6352SYUK+T?
All MAX6352SYUK+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6352SYUK+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 MAX6352SYUK+T part is unused and in its original packaging.
Return procedure for MAX6352SYUK+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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