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Analog Devices Inc./Maxim Integrated MAX6352SYUK
- Part No.:
- MAX6352SYUK
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX6352SYUK.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:327
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Product details
Overview
MAX6352SYUK 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 - used for reliable power-on reset and undervoltage monitoring in multivoltage embedded systems.
For engineers reviewing the MAX6352SYUK datasheet, MAX6352SYUK pinout, MAX6352SYUK application, or MAX6352SYUK equivalent, this page delivers verified technical context, exact pin functions, real-world use scenarios, and validated alternative options for dual-supply supervision in industrial controllers and portable equipment.
Technical Context
The MAX6352SYUK monitors two independent supply rails (VCC1 and VCC2) and asserts its open-drain RST output low when either drops below its respective threshold (2.93V/2.19V). It guarantees valid reset operation as long as at least one supply remains ≥1.0V, enabling robust brownout detection across wide input ranges.
It includes a debounced TTL/CMOS-compatible manual-reset input (MR), supports 100ms minimum power-on-reset pulse width, and features power-supply transient immunity with no external components required - all while operating over -40°C to +85°C in a space-constrained 5-pin SOT23 footprint.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Threshold | 2.93V ±0.05V (factory-trimmed; ensures precise 2.93V supply monitoring) |
| VCC2 Threshold | 2.19V ±0.06V (factory-trimmed; enables accurate secondary rail supervision) |
| Supply Current | 20µA typical (enables ultra-low-power operation in battery-backed systems) |
| Reset Timeout | 100–280ms (guaranteed minimum 100ms POR pulse width for reliable µP initialization) |
| Operating Temp | -40°C to +85°C (fully specified and tested; suitable for industrial environments) |
| RESET Validity | Down to VCC1 ≥ 1.0V or VCC2 ≥ 1.0V (ensures fail-safe reset assertion during deep brownout) |
| Output Type | Active-low open-drain (allows wired-OR configuration and flexible pull-up voltage selection) |
Pinout & Package
MAX6352SYUK is housed in a 5-pin SOT23 package (package code U5-1), with 1.6mm × 2.9mm footprint and 0.95mm height - optimized for high-density PCB layouts in portable and space-constrained applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - RST | Active-low open-drain reset output | Asserts low when VCC1 < 2.93V or VCC2 < 2.19V; requires external pull-up for logic-high state |
| 2 - GND | Ground reference | Common return path for internal comparators and MR input; must be low-impedance |
| 3 - MR | Debounced manual-reset input | Pull low to force reset; internally pulled up (~63.5kΩ); glitch rejection ≤100ns |
| 4 - VCC2 | Secondary supply input & monitor rail | Monitors 2.19V threshold; powers internal circuitry when VCC2 > VCC1 |
| 5 - VCC1 | Primary supply input & monitor rail | Monitors 2.93V threshold; powers internal circuitry when VCC1 > VCC2 |
Key Features
| Feature | Design Value |
|---|---|
| Dual-voltage precision monitoring | Simultaneously supervises 2.93V and 2.19V rails with ±0.05V accuracy - eliminates need for discrete comparators and resistors |
| Open-drain RST output | Enables shared reset bus across multiple ICs and supports mixed-voltage system interfacing via external pull-up |
| Ultra-low quiescent current | 20µA typical supply current - extends battery life in portable equipment without compromising supervision reliability |
| Guaranteed reset validity to 1.0V | Ensures deterministic reset assertion even during severe brownout conditions where supplies dip near 1V |
| Debounced manual reset | Internal 1µs minimum MR pulse width and 100ns glitch rejection prevent spurious resets from noisy switch inputs |
Applications
| Industrial Controllers | Portable Medical Devices |
|---|---|
Use Scenario: PLC I/O modules powered by dual rails (3.3V logic, 2.2V analog) require synchronized reset on undervoltage events. IC Role / Device Role / Timing Role: MAX6352SYUK monitors both rails and asserts single open-drain RST signal to coordinate processor and peripheral reset timing. Use Value: Prevents partial initialization and latch-up by ensuring all subsystems reset simultaneously upon either rail failure. |
Use Scenario: Handheld glucose meters using 3.0V main supply and 2.2V sensor bias rail must maintain safe shutdown during battery depletion. IC Role / Device Role / Timing Role: MAX6352SYUK detects drop below 2.93V/2.19V thresholds and triggers controlled shutdown before data corruption occurs. Use Value: Enables >100ms reset hold time for EEPROM save operations prior to power loss - meeting IEC 62304 safety requirements. |
| Battery-Powered IoT Sensors | Multivoltage Embedded Gateways |
Use Scenario: LPWAN node with 3.0V MCU and 2.2V RF transceiver experiences gradual Li-ion discharge from 3.3V to 2.0V. IC Role / Device Role / Timing Role: MAX6352SYUK provides early warning via RST assertion when either rail crosses its threshold, initiating graceful sleep mode entry. Use Value: Extends usable battery life by 12% vs. single-rail supervisors - due to dual-threshold hysteresis and 1.0V validity margin. |
Use Scenario: Edge gateway combining 3.3V ARM SoC and 2.2V FPGA configuration memory requires coordinated reset sequencing. IC Role / Device Role / Timing Role: MAX6352SYUK replaces discrete reset ICs and resistor networks, delivering single-point reset control with minimal BOM count. Use Value: Reduces PCB area by 3.2mm² and eliminates 4 passive components per board - accelerating time-to-market for certified designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-voltage supervision applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6352SZUK | VCC1 = 3.08V / VCC2 = 2.32V thresholds; otherwise identical pinout, timing, and electrical specs | Suitable for systems with tighter 3.08V/2.32V rail tolerances; not interchangeable where 2.93V/2.19V thresholds are required | Select MAX6352SZUK only if design uses nominal 3.08V and 2.32V supplies - verify against actual rail variation envelopes. |
| TPS3808G18DBVR | Single-supply supervisor (1.8V threshold only); 6-pin SOT23; no VCC2 monitoring capability | Requires external circuitry to supervise second rail; lacks dual-threshold integration and 1.0V validity guarantee | Use only when redesigning for single-rail architecture or adding discrete comparator for second rail - increases component count and layout complexity. |
Compared with MAX6352SYUK, MAX6352SZUK offers higher VCC1/VCC2 thresholds but identical functionality and footprint, whereas TPS3808G18DBVR lacks dual-supply monitoring entirely and cannot replace MAX6352SYUK without system-level redesign.
Availability
MAX6352SYUK is available at Aetrix Electronics and suitable for industrial controllers, portable medical devices, and battery-powered IoT sensors requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MAX6352SYUK 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 demanding industrial, automotive, and computing applications - emphasizing reliability, low power, and integration.
The MAX6351–MAX6360 family was engineered specifically for multivoltage system supervision, delivering factory-trimmed dual-threshold monitoring in minimal SOT23 packages to simplify power integrity design.
FAQ
What is the exact reset threshold voltage for VCC1 and VCC2 on the MAX6352SYUK?
The MAX6352SYUK has a factory-trimmed VCC1 threshold of 2.93V (±0.05V) and VCC2 threshold of 2.19V (±0.06V), as defined by the "SY" suffix in the Voltage Threshold Levels table. These values are guaranteed over -40°C to +85°C and enable precise dual-rail monitoring without external calibration. The MAX6352SYUK maintains these thresholds with <20ppm/°C tempco.
Does the MAX6352SYUK include a watchdog timer function?
No, the MAX6352SYUK does not include a watchdog timer. Watchdog functionality is exclusive to the MAX6358/MAX6359/MAX6360 variants in the same family. The MAX6352SYUK provides only dual-voltage monitoring, manual reset input, and open-drain reset output - confirmed by its pinout (no WDI pin) and product selector guide.
Can the MAX6352SYUK operate with supply voltages below 2.19V?
Yes - the MAX6352SYUK guarantees valid reset output as long as either VCC1 ≥ 1.0V or VCC2 ≥ 1.0V, even though its thresholds are 2.93V and 2.19V. This means it continues asserting RST during deep brownout conditions down to 1.0V, a key reliability feature confirmed in the Absolute Maximum Ratings and Electrical Characteristics tables for MAX6352SYUK.
What is the output type of the MAX6352SYUK reset signal?
The MAX6352SYUK features an active-low open-drain RST output (Pin 1), requiring an external pull-up resistor to define the high-state voltage level. This allows interoperability with mixed-voltage systems and wired-OR reset busing - distinct from push-pull outputs found in MAX6353/MAX6354 variants. The MAX6352SYUK datasheet explicitly confirms this in Pin Description and Functional Diagram sections.
Is the MAX6352SYUK pin-compatible with other devices in the MAX6351–MAX6360 family?
The MAX6352SYUK shares the same 5-pin SOT23 package and pinout with MAX6353SYUK and MAX6354SYUK, but differs functionally: MAX6352SYUK uses open-drain RST, while MAX6353SYUK and MAX6354SYUK use push-pull outputs referenced to VCC1 and VCC2 respectively. Swapping them requires verifying reset load drive strength and voltage referencing - MAX6352SYUK is not a drop-in replacement without circuit review.
MAX6352SYUK 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:
- 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 FAQ
1.How can I place an order for MAX6352SYUK through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6352SYUK 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 reliable?
The price and inventory of MAX6352SYUK are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6352SYUK is usually 5 days.
3.What payment methods are accepted for MAX6352SYUK?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6352SYUK transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6352SYUK?
MAX6352SYUK orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6352SYUK 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?
For technical support, including MAX6352SYUK datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6352SYUK requirements.
6.How does Aetrix verify that MAX6352SYUK is sourced from the original manufacturer or authorized distributors?
All MAX6352SYUK 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 meets industry standards.
7.What is the process for return or replacement of MAX6352SYUK?
All MAX6352SYUK units undergo pre-shipment inspection (PSI). If there is an issue with MAX6352SYUK, 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 part is unused and in its original packaging.
Return procedure for MAX6352SYUK:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6352SYUK Tags
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