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Analog Devices Inc./Maxim Integrated MAX6352TZUK+T
- Part No.:
- MAX6352TZUK+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX6352TZUK+T.pdf
- Description:
- IC SUPERVISOR MPU SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,631
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Product details
Overview
MAX6352TZUK+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 3.08V (VCC1) and 2.32V (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 MAX6352TZUK+T datasheet, MAX6352TZUK+T pinout, MAX6352TZUK+T application, or MAX6352TZUK+T equivalent, this device supports dual-supply monitoring with no external components, offers debounced manual reset, operates across –40°C to +85°C, and delivers deterministic reset timing critical for industrial controllers and battery-powered instrumentation.
Technical Context
The MAX6352TZUK+T implements independent voltage comparators for VCC1 and VCC2, asserting reset when either supply drops below its respective threshold (3.08V/2.32V). Its open-drain RST output requires an external pull-up and remains valid as long as at least one supply exceeds +1.0V.
It includes a debounced TTL/CMOS-compatible manual-reset input (MR), supports power-supply transient immunity up to 100µs at 100mV overdrive, and guarantees 100ms minimum reset pulse width after power-up or MR release - all without requiring external timing capacitors or resistors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Threshold | 3.08V ±0.08V (–40°C to +85°C); precise trip point for primary supply monitoring |
| VCC2 Threshold | 2.32V ±0.07V (–40°C to +85°C); accurate secondary supply detection |
| Supply Current | 20µA typical; enables ultra-low-power operation in battery-backed systems |
| Reset Pulse Width | 100–280ms; ensures sufficient duration for μP initialization and peripheral stabilization |
| Operating Temp | –40°C to +85°C; qualified for industrial and extended-temperature embedded applications |
| Reset Output Type | Active-low open-drain; allows wired-OR configuration and flexible voltage-level translation |
| MR Input Compatibility | TTL/CMOS-debounced; eliminates need for external RC filtering on manual reset line |
Pinout & Package
MAX6352TZUK+T is housed in a RoHS-compliant 5-pin SOT23 package (U5-1 outline), with 1.6mm × 2.9mm footprint and 0.95mm height - optimized for space-constrained PCB layouts in portable and industrial electronics.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - RST | Active-low open-drain reset output | Asserted low when VCC1 < 3.08V or VCC2 < 2.32V; requires external pull-up for logic-high state |
| 2 - GND | Ground reference | Common return path for both supply inputs and internal comparators |
| 3 - MR | Debounced manual-reset input | Pull low to force reset; internally debounced to reject noise <100ns; valid while VCC1 ≥ 1.0V |
| 4 - VCC2 | Secondary supply input & monitor | Monitors 2.32V threshold; powers internal circuitry when VCC2 > VCC1 |
| 5 - VCC1 | Primary supply input & monitor | Monitors 3.08V threshold; powers internal circuitry when VCC1 > VCC2 |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitoring | Simultaneously tracks VCC1 (3.08V) and VCC2 (2.32V) with separate comparators - no shared reference or calibration drift |
| Guaranteed RESET validity to 1.0V | Output remains functional even if one supply collapses to 1.0V, enabling fail-safe reset during brownout conditions |
| No external components required | Factory-trimmed thresholds and internal debounce eliminate need for external resistors, capacitors, or Schmitt triggers |
| Power-supply transient immunity | Rejects transients ≤100µs at 100mV overdrive - prevents false resets during switching noise or load dumps |
| Low quiescent current | 20µA max at full temperature range - extends battery life in always-on monitoring applications |
Applications
| Industrial PLC Controllers | Portable Medical Monitors |
|---|---|
|
Use Scenario: Monitoring dual-rail power (3.3V logic + 2.5V analog) in programmable logic controllers exposed to wide ambient temperatures and EMI. IC Role / Device Role / Timing Role: Dual-supply supervisor ensuring synchronized reset assertion before firmware execution begins. Use Value: Prevents corrupted register states by guaranteeing 100ms minimum reset pulse width and rejecting transients up to 100µs. |
Use Scenario: Battery-powered handheld ECG device with separate 3.08V MCU core and 2.32V sensor front-end supply rails. IC Role / Device Role / Timing Role: Low-current supervisory IC that asserts reset only when either rail falls below its precise threshold. Use Value: 20µA supply current extends battery runtime; open-drain RST allows level-shifting to 1.8V I/O domain. |
| Automotive Infotainment Head Units | Smart Energy Meters |
|
Use Scenario: Reset coordination between 3.3V application processor and 2.32V communication interface (CAN/LIN) in automotive head units. IC Role / Device Role / Timing Role: Dual-threshold supervisor providing fault-tolerant reset signaling across two isolated power domains. Use Value: Guaranteed operation from –40°C to +85°C ensures reliability in under-hood thermal environments. |
Use Scenario: Monitoring main 3.08V system rail and auxiliary 2.32V real-time clock backup supply in utility-grade electricity meters. IC Role / Device Role / Timing Role: Precision voltage supervisor preventing meter firmware corruption during AC line sags or capacitor discharge events. Use Value: Factory-trimmed 3.08V/2.32V thresholds eliminate calibration overhead and ensure compliance with IEC 62053 accuracy requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-voltage supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6352SZUK+T | VCC1 = 2.93V, VCC2 = 2.32V; 150mV lower primary threshold | Better suited for systems with tighter 2.9V nominal VCC1 rails (e.g., some ARM Cortex-M3 designs) | Select when primary supply nominal is 2.9V instead of 3.3V; same pinout and timing behavior |
| TPS3808G33DBVR | Single-supply (3.3V only), push-pull output, 3% threshold accuracy vs. MAX6352's 2.6% (3.08V ±0.08V) | Lacks dual-monitoring capability; requires external resistor divider for second rail monitoring | Choose only if monitoring one rail suffices and push-pull output is preferred; not drop-in compatible |
Compared with MAX6352TZUK+T, MAX6352SZUK+T provides identical functionality with adjusted VCC1 threshold for 2.9V systems, while TPS3808G33DBVR offers higher accuracy on a single rail but cannot replace dual-supply supervision without added components.
Availability
MAX6352TZUK+T is available at Aetrix Electronics and suitable for industrial PLC controllers, portable medical monitors, automotive infotainment head units, and smart energy meters requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6352TZUK+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, and communications applications - emphasizing precision, low power, and robustness.
The MAX6351–MAX6360 family was engineered specifically for multivoltage system supervision, delivering factory-trimmed dual-threshold monitoring with minimal external components in compact SOT23 packages.
FAQ
What is the exact reset threshold voltage for VCC1 and VCC2 on the MAX6352TZUK+T?
The MAX6352TZUK+T has a factory-set VCC1 threshold of 3.08V (±0.08V over –40°C to +85°C) and VCC2 threshold of 2.32V (±0.07V over temperature). These values are laser-trimmed during production and documented in the Voltage-Threshold Levels table of the MAX6351–MAX6360 datasheet. The "TZ" suffix explicitly denotes this 3.08V/2.32V combination.
Does the MAX6352TZUK+T include a watchdog timer function?
No, the MAX6352TZUK+T does not include a watchdog timer. Watchdog functionality is exclusive to the MAX6358/MAX6359/MAX6360 variants (6-pin SOT23). The MAX6352TZUK+T is a 5-pin device with dual-voltage monitoring and manual reset only - confirmed by its pin configuration (RST, GND, MR, VCC2, VCC1) and absence of WDI pin.
What type of reset output does the MAX6352TZUK+T provide, and how should it be interfaced?
The MAX6352TZUK+T provides an active-low open-drain RST output (Pin 1). It must be pulled up externally - typically with a 10kΩ resistor to the monitored VCC1 rail or another logic-compatible voltage. This configuration enables wired-OR reset buses and level translation, unlike push-pull outputs found in MAX6353/MAX6354 variants.
Can the MAX6352TZUK+T operate reliably when one supply drops below 1.0V?
Yes - the MAX6352TZUK+T guarantees valid reset output as long as either VCC1 ≥ 1.0V or VCC2 ≥ 1.0V. This feature ensures continued supervision during partial brownouts. If both supplies fall below 1.0V, the internal circuitry ceases operation and RST enters high-impedance state (open-drain), which - with proper pull-up - defaults to logic high.
Is the MAX6352TZUK+T pin-compatible with other devices in the MAX6351–MAX6360 family?
The MAX6352TZUK+T shares the same 5-pin SOT23 package and pinout with MAX6352xxUK-T, MAX6353xxUK-T, and MAX6354xxUK-T variants. However, it is not pin-compatible with 6-pin variants (e.g., MAX6351, MAX6355) due to missing RST2/RSTIN/WDI pins. Functionally, only MAX6352-series parts share the open-drain RST output and 5-pin layout.
MAX6352TZUK+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:
- 2.32V, 3.08V
- 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
MAX6352TZUK+T FAQ
1.How can I place an order for MAX6352TZUK+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6352TZUK+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 MAX6352TZUK+T reliable?
The price and inventory of MAX6352TZUK+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6352TZUK+T is usually 5 days.
3.What payment methods are accepted for MAX6352TZUK+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6352TZUK+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6352TZUK+T?
MAX6352TZUK+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6352TZUK+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 MAX6352TZUK+T?
For technical support, including MAX6352TZUK+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6352TZUK+T requirements.
6.How does Aetrix verify that MAX6352TZUK+T is sourced from the original manufacturer or authorized distributors?
All MAX6352TZUK+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 MAX6352TZUK+T meets industry standards.
7.What is the process for return or replacement of MAX6352TZUK+T?
All MAX6352TZUK+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6352TZUK+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 MAX6352TZUK+T part is unused and in its original packaging.
Return procedure for MAX6352TZUK+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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