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Analog Devices Inc./Maxim Integrated MAX6352MSUK
- Part No.:
- MAX6352MSUK
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX6352MSUK.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,327
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Product details
Overview
The MAX6352MSUK 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 4.38V (VCC1) and 2.93V (VCC2), 20µA supply current, and guaranteed RESET validity down to VCC1 ≥ 1.0V or VCC2 ≥ 1.0V-designed for reliable power monitoring in multivoltage embedded systems.
For engineers reviewing the MAX6352MSUK datasheet, MAX6352MSUK pinout, MAX6352MSUK application, or MAX6352MSUK equivalent, key selection considerations include its open-drain RST output topology, dual-supply threshold independence, manual-reset debouncing, temperature-stable ±20ppm/°C threshold tempco, and compatibility with 1.2V–5.5V supply ranges across –40°C to +85°C.
Technical Context
The MAX6352MSUK monitors two independent supply rails (VCC1 and VCC2) with separate precision voltage thresholds; reset is asserted if either rail drops below its respective trip point. Its open-drain RST output requires an external pull-up and supports level-shifting across VCC domains.
It includes a debounced TTL/CMOS-compatible manual-reset input (MR) with 1µs minimum pulse width and 100ns glitch rejection, and guarantees functional reset assertion as long as at least one supply remains ≥1.0V-enabling robust operation during brownout or asymmetric supply sequencing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Threshold | 4.38V ±0.13V (–40°C to +85°C); precise detection of 4.5V-class supplies with hysteresis |
| VCC2 Threshold | 2.93V ±0.08V (–40°C to +85°C); accurate monitoring of 3.0V/3.3V logic rails |
| Supply Current | 20µA typical; enables ultra-low-power operation in battery-backed or energy-constrained systems |
| Reset Timeout | 100–280ms; ensures sufficient processor initialization time after power stabilization |
| Reset Output Type | Active-low open-drain; allows wired-OR configuration and flexible voltage-level translation |
| Operating Temp | –40°C to +85°C; qualified for industrial-grade embedded and automotive auxiliary applications |
| Threshold Tempco | ±20ppm/°C; minimal drift over temperature-critical for stable reset timing in wide-temp environments |
Pinout & Package
MAX6352MSUK is housed in a 5-pin SOT23 package (U5-1 outline, land pattern 90-0174), with exposed pad not electrically connected. Pin 1 is RST (open-drain reset), Pin 2 is GND, Pin 3 is MR (manual reset), 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; asserts low when VCC1 < 4.38V or VCC2 < 2.93V; compatible with mixed-voltage host interfaces |
| 2 - GND | Ground reference | Common return for both supply inputs and internal comparators; must be low-impedance |
| 3 - MR | Debounced manual-reset input | Pull low to force reset; 1µs minimum pulse width; internally pulled up (~63.5kΩ); tolerant of noise up to 100ns |
| 4 - VCC2 | Secondary supply input & monitor | Monitors 2.93V rail; powers internal circuitry when VCC2 > VCC1; valid down to 1.0V |
| 5 - VCC1 | Primary supply input & monitor | Monitors 4.38V rail; primary power source when VCC1 > VCC2; also powers MR and RST driver |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitoring | Simultaneous supervision of 4.38V and 2.93V rails with no shared reference-prevents false resets during asymmetric supply ramp-up |
| Open-drain RST with 1.0V validity | Guaranteed correct reset state even when VCC1 or VCC2 drops to 1.0V-supports graceful shutdown in deep brownout |
| Factory-trimmed precision thresholds | ±2.5% initial accuracy over temperature eliminates need for external calibration or trimming components |
| Ultra-low quiescent current | 20µA max supply draw extends battery life in portable equipment and enables always-on monitoring |
| Robust MR interface | Internal 63.5kΩ pull-up and 100ns glitch rejection simplify system-level reset button design without external RC filtering |
Applications
| Industrial PLC Controllers | Portable Medical Monitors |
|---|---|
Use Scenario: Monitoring 5V analog front-end and 3V microcontroller supply in a handheld ECG device with battery backup. IC Role / Device Role / Timing Role: Dual-rail supervisor asserting open-drain reset to both domains upon independent undervoltage detection. Use Value: Prevents corrupted ADC sampling or firmware execution by ensuring synchronized reset when either rail sags below 4.38V or 2.93V. | Use Scenario: Power sequencing and fault detection in a battery-powered glucose meter with separate 4.5V display driver and 3.0V sensor MCU. IC Role / Device Role / Timing Role: Independent threshold comparator triggering single RST signal on first rail failure, with 100ms+ timeout for safe state capture. Use Value: Eliminates need for discrete voltage detectors and OR-gate logic-reducing BOM count and PCB area by 3 components. |
| Automotive Body Control Modules | Industrial IoT Edge Gateways |
Use Scenario: Supervising 5V CAN transceiver supply and 3.3V microcontroller core in under-hood control units subject to load dump and cold cranking. IC Role / Device Role / Timing Role: Open-drain RST tied to shared reset bus; asserts when either supply violates its threshold, with immunity to short transients ≤100µs. Use Value: Maintains reset assertion integrity during 12V battery dips to 6V-ensuring MCU remains held until both rails stabilize above thresholds. | Use Scenario: Reliable boot supervision in a fanless industrial gateway with 4.5V PoE interface and 2.9V ARM Cortex-M7 SoC. IC Role / Device Role / Timing Role: Dual-threshold detector enabling deterministic startup sequence where 4.38V rail powers peripherals before 2.93V core comes online. Use Value: Guarantees 100ms minimum reset pulse width regardless of supply ramp rate-preventing premature release of SoC reset. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-voltage supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6353MSUK | Push-pull RST output referenced to VCC1 (no external pull-up required); same thresholds and package | Eliminates external pull-up resistor but lacks level-shifting flexibility of open-drain | Select MAX6353MSUK if driving a single-voltage reset net; retain MAX6352MSUK for mixed-voltage or wired-OR configurations |
| TPS3808G33DBVR | Single-supply supervisor (3.3V threshold only); 1.8–6.0V input range; 350nA quiescent current; SOT23-5 | Cannot monitor dual rails simultaneously-requires two devices for equivalent coverage | Choose TPS3808G33DBVR only for cost-sensitive single-rail designs; MAX6352MSUK provides integrated dual-rail functionality with lower total solution size |
Compared with MAX6353MSUK, MAX6352MSUK trades push-pull simplicity for open-drain versatility in multi-domain systems; versus TPS3808G33DBVR, it delivers true dual-threshold supervision in one die-reducing component count, layout complexity, and validation effort for multivoltage platforms.
Availability
MAX6352MSUK is available at Aetrix Electronics and suitable for industrial PLC controllers, portable medical monitors, automotive body control modules, and industrial IoT edge gateways requiring stable component supply, long-term lifecycle support, and guaranteed RoHS-compliant sourcing.
Supply support for MAX6352MSUK 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) is a semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and computing applications.
The MAX6351–MAX6360 product line delivers precision dual- and triple-voltage supervisors optimized for reliability-critical embedded systems where independent rail monitoring, low power, and extended temperature operation are mandatory.
FAQ
What is the exact reset threshold voltage for VCC1 and VCC2 on the MAX6352MSUK?
The MAX6352MSUK has a factory-set VCC1 threshold of 4.38V (±0.13V over –40°C to +85°C) and a VCC2 threshold of 2.93V (±0.08V over the same temperature range). These values are laser-trimmed during production and documented in the Voltage-Threshold Levels table of the MAX6352MSUK datasheet. The "MS" suffix explicitly denotes this threshold pair.
Does the MAX6352MSUK include a watchdog timer function?
No, the MAX6352MSUK does not include a watchdog timer. Watchdog functionality is exclusive to the MAX6358/MAX6359/MAX6360 variants in the family. The MAX6352MSUK provides only dual-voltage monitoring, manual reset, and open-drain reset output-making it suitable for systems where software-level watchdog supervision is handled separately.
What is the maximum supply voltage the MAX6352MSUK can tolerate on VCC1 and VCC2 pins?
The MAX6352MSUK supports VCC1 and VCC2 voltages from 1.0V to 5.5V (minimum operating) and withstands absolute maximum ratings of –0.3V to +6V on both pins. Operation is fully specified from 1.2V to 5.5V across the full –40°C to +85°C temperature range, with RESET guaranteed valid as long as either supply remains ≥1.0V.
Can the MAX6352MSUK's RST output drive a 5V logic input directly?
No-the MAX6352MSUK features an open-drain RST output and cannot actively drive high. To interface with a 5V logic input, an external pull-up resistor to the target logic rail (e.g., 5V or 3.3V) is required. The RST pin sinks current when asserted low and floats when inactive, enabling level translation and wired-OR reset busing across voltage domains.
Is the MAX6352MSUK available in lead-free packaging?
Yes, the MAX6352MSUK is available in lead(Pb)-free packaging. To order the RoHS-compliant version, replace the "-T" suffix in the standard part number with "+T", resulting in MAX6352MSUK+T. Both versions share identical electrical specifications and 5-pin SOT23 mechanical dimensions, with lead-free compliance verified per JEDEC J-STD-609.
MAX6352MSUK 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:
- 2.93V, 4.38V
- 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
MAX6352MSUK FAQ
1.How can I place an order for MAX6352MSUK through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6352MSUK 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 MAX6352MSUK reliable?
The price and inventory of MAX6352MSUK are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6352MSUK is usually 5 days.
3.What payment methods are accepted for MAX6352MSUK?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6352MSUK transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6352MSUK?
MAX6352MSUK orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6352MSUK 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 MAX6352MSUK?
For technical support, including MAX6352MSUK datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6352MSUK requirements.
6.How does Aetrix verify that MAX6352MSUK is sourced from the original manufacturer or authorized distributors?
All MAX6352MSUK 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 MAX6352MSUK meets industry standards.
7.What is the process for return or replacement of MAX6352MSUK?
All MAX6352MSUK units undergo pre-shipment inspection (PSI). If there is an issue with MAX6352MSUK, 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 MAX6352MSUK part is unused and in its original packaging.
Return procedure for MAX6352MSUK:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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