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Analog Devices Inc./Maxim Integrated MAX6352SVUK+T
- Part No.:
- MAX6352SVUK+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX6352SVUK+T.pdf
- Description:
- IC SUPERVISOR MPU SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,483
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Product details
Overview
The MAX6352SVUK+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 1.58V (VCC2), 20µA supply current, and guaranteed RESET validity down to VCC1 ≥ 1.0V or VCC2 ≥ 1.0V - used for reliable power-on reset and supply monitoring in multivoltage embedded systems.
For engineers reviewing the MAX6352SVUK+T datasheet, MAX6352SVUK+T pinout, MAX6352SVUK+T application, or MAX6352SVUK+T equivalent, this device supports dual-supply validation with no external components, offers debounced manual-reset input, and delivers deterministic reset timing across -40°C to +85°C for industrial and portable equipment design.
Technical Context
The MAX6352SVUK+T monitors two independent supply rails (VCC1 and VCC2) and asserts its open-drain RST output when either drops below its respective threshold (2.93V/1.58V). Reset remains valid as long as at least one supply exceeds +1.0V, enabling robust operation during brownout conditions.
It integrates a debounced TTL/CMOS-compatible manual-reset input (MR), guarantees 100ms minimum reset pulse width, and provides power-supply transient immunity without requiring external filtering components - all within a 5-pin SOT23 footprint optimized for space-constrained PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Threshold | 2.93V ±0.05V at +25°C; ensures precise detection of +3.3V rail undervoltage before system instability occurs |
| VCC2 Threshold | 1.58V ±0.03V at +25°C; enables accurate monitoring of low-voltage logic rails such as +1.8V or +1.5V domains |
| Supply Current | 20µA typical; minimizes quiescent power draw in battery-powered and always-on applications |
| Reset Pulse Width | 100ms minimum; guarantees sufficient duration to fully initialize microprocessors and peripherals |
| Operating Temp | -40°C to +85°C; qualified for industrial-grade reliability without derating or thermal management overhead |
| RESET Validity | Valid down to VCC1 ≥ 1.0V or VCC2 ≥ 1.0V; maintains functional reset assertion during deep brownout events |
| MR Input | Debounced TTL/CMOS-compatible; eliminates false resets from mechanical switch bounce or noise |
Pinout & Package
MAX6352SVUK+T is housed in a RoHS-compliant 5-pin SOT23 package (U5-1 outline, land pattern 90-0174), with 0.95mm pitch, 2.9mm × 1.6mm body size, and exposed pad optional for thermal enhancement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RST | Active-low open-drain reset output referenced to VCC1; requires external pull-up for logic-level compatibility with host µP |
| 2 | GND | Ground reference for internal comparators, reset generator, and MR input; must be low-impedance connection |
| 3 | MR | Debounced manual-reset input; pulling low forces reset; internally pulled up (~63.5kΩ); voltage limited to VCC1 |
| 4 | VCC2 | Secondary supply input; powers internal circuitry when VCC2 > VCC1 and monitors its own voltage against 1.58V threshold |
| 5 | VCC1 | Primary supply input; powers internal circuitry when VCC1 > VCC2 and monitors its own voltage against 2.93V threshold |
Key Features
| Feature | Design Value |
|---|---|
| Dual-voltage monitoring | Simultaneously tracks VCC1 (2.93V) and VCC2 (1.58V) with independent comparators and hysteresis |
| Open-drain RST output | Enables wired-OR reset bus configuration and flexible voltage-level translation via external pull-up |
| Guaranteed reset validity | Asserts valid reset state even when VCC1 or VCC2 drops to 1.0V - critical for graceful shutdown sequencing |
| No external components | Eliminates need for external resistors, capacitors, or diodes in dual-rail supervision - reduces BOM count and layout area |
| Transient immunity | Rejects short negative-going VCC transients up to 250ns (at 100mV overdrive), preventing spurious resets |
Applications
| Industrial Controllers | Portable Medical Devices |
|---|---|
Use Scenario: PLC I/O modules powered by separate +3.3V logic and +1.5V analog rails require coordinated reset during cold start and brownout. IC Role / Device Role / Timing Role: Dual-threshold supervisor ensures both rails stabilize before releasing reset, preventing partial initialization faults. Use Value: Eliminates need for discrete voltage detectors and OR-gate logic, reducing component count by 3–5 parts per module. |
Use Scenario: Battery-powered glucose meters use +3.3V MCU core and +1.5V sensor bias rail; low-quiescent-current supervision extends battery life. IC Role / Device Role / Timing Role: MAX6352SVUK+T provides 20µA total supply current and 100ms reset hold time compatible with ultra-low-power sleep modes. Use Value: Enables >12-month shelf life on coin-cell batteries while guaranteeing reliable wake-up and initialization sequence. |
| Automotive Body Control Units | Smart Energy Meters |
Use Scenario: BCMs monitor +5V power distribution and +1.8V microcontroller supply under wide temperature (-40°C to +85°C) and load-dump conditions. IC Role / Device Role / Timing Role: Supervises dual rails independently; open-drain RST interfaces directly to automotive-grade µP reset pins with external 4.7kΩ pull-up. Use Value: Meets AEC-Q100 stress test requirements for supply monitoring integrity across full automotive temperature range. |
Use Scenario: Two-way AMI meters operate from AC-derived +3.3V and isolated +1.5V communication rail; must survive grid sags and surges. IC Role / Device Role / Timing Role: Guarantees RESET remains asserted until both supplies exceed thresholds and stay stable for ≥100ms. Use Value: Prevents firmware corruption during 100ms–500ms grid interruptions, eliminating field returns due to failed meter boot sequences. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-voltage supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6352SUH+T | Same 5-pin SOT23 package and dual-threshold architecture, but with VCC1 = 2.93V / VCC2 = 2.19V thresholds | Designed for +3.3V / +2.5V dual-rail systems instead of +3.3V / +1.5V; higher VCC2 threshold limits use in low-voltage logic domains | Select MAX6352SUH+T only if second rail is ≥2.19V; otherwise MAX6352SVUK+T's 1.58V threshold ensures compatibility with sub-1.8V supplies |
| TPS3808G18DBVR | Single-supply supervisor (1.8V threshold only); no VCC2 monitoring capability; 6-pin SOT23 package | Requires external voltage divider and comparator to emulate dual-rail function - increases BOM, layout area, and validation effort | Choose only if system uses only one monitored rail; MAX6352SVUK+T avoids added complexity and cost of multi-component supervision solutions |
Compared with MAX6352SUH+T, MAX6352SVUK+T supports lower VCC2 rails (1.58V vs. 2.19V), making it suitable for modern low-power SoCs; versus TPS3808G18DBVR, it delivers true integrated dual-supply monitoring without external components or accuracy degradation from resistor tolerances.
Availability
MAX6352SVUK+T is available at Aetrix Electronics and suitable for industrial controllers, portable medical devices, automotive body control units, and smart energy meters requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6352SVUK+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 ICs for industrial, automotive, communications, and computing applications.
The MAX6351–MAX6360 family delivers precision dual- and triple-voltage supervision with minimal external components, targeting space- and power-constrained embedded systems where reliability and supply integrity are critical.
FAQ
What is the exact reset threshold voltage for VCC1 and VCC2 on the MAX6352SVUK+T?
The MAX6352SVUK+T has factory-set thresholds of 2.93V for VCC1 and 1.58V for VCC2, specified over -40°C to +85°C with ±0.05V and ±0.03V tolerance respectively. These values are laser-trimmed during production and documented in the Voltage-Threshold Levels table of the MAX6351–MAX6360 datasheet. The "SV" suffix explicitly denotes this threshold pair.
Does the MAX6352SVUK+T include a watchdog timer function?
No, the MAX6352SVUK+T does not include a watchdog timer. Watchdog functionality is only present in the MAX6358/MAX6359/MAX6360 variants (6-pin SOT23). The MAX6352SVUK+T is a dual-voltage supervisor with manual reset and open-drain reset output only - confirmed by its pin configuration (no WDI pin) and product selector guide.
Can the MAX6352SVUK+T operate with VCC1 = 2.5V and VCC2 = 1.2V?
No - the MAX6352SVUK+T requires VCC1 ≥ 1.2V and VCC2 ≥ 1.2V for guaranteed operation per Absolute Maximum Ratings and Electrical Characteristics. While RESET remains valid down to 1.0V on either rail, the device itself will not function correctly below 1.2V. Operating VCC2 at 1.2V violates its 1.58V threshold specification and risks unreliable detection.
What is the maximum sink current capability of the RST output on the MAX6352SVUK+T?
The RST output of the MAX6352SVUK+T is an open-drain structure rated for 20mA continuous sink current. At VCC1 ≥ 2.7V, VOL ≤ 0.3V with ISINK = 1.2mA; at VCC1 ≥ 4.5V, VOL ≤ 0.4V with ISINK = 3.2mA. This allows direct interface to standard CMOS inputs using common pull-up resistors (e.g., 4.7kΩ to 3.3V).
Is the MAX6352SVUK+T pin-compatible with other members of the MAX6351–MAX6360 family?
The MAX6352SVUK+T shares the same 5-pin SOT23 footprint with MAX6352xxUK-T, MAX6353xxUK-T, and MAX6354xxUK-T variants, but pin functions differ: MAX6353 outputs push-pull RST referenced to VCC1, while MAX6354 references RST to VCC2. MAX6352SVUK+T's open-drain RST (Pin 1) is not functionally interchangeable without circuit redesign.
MAX6352SVUK+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:
- 1.58V, 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
MAX6352SVUK+T FAQ
1.How can I place an order for MAX6352SVUK+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6352SVUK+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 MAX6352SVUK+T reliable?
The price and inventory of MAX6352SVUK+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6352SVUK+T is usually 5 days.
3.What payment methods are accepted for MAX6352SVUK+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6352SVUK+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6352SVUK+T?
MAX6352SVUK+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6352SVUK+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 MAX6352SVUK+T?
For technical support, including MAX6352SVUK+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6352SVUK+T requirements.
6.How does Aetrix verify that MAX6352SVUK+T is sourced from the original manufacturer or authorized distributors?
All MAX6352SVUK+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 MAX6352SVUK+T meets industry standards.
7.What is the process for return or replacement of MAX6352SVUK+T?
All MAX6352SVUK+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6352SVUK+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 MAX6352SVUK+T part is unused and in its original packaging.
Return procedure for MAX6352SVUK+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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