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MAX6328UR31+T

In Stock 24018 pcs Reference Price(In US Dollars)
1+
$1.6422
Manufacturer Part Number:
MAX6328UR31+T
Manufacturer / Brand
Analog Devices Inc./Maxim Integrated
Part of Description:
IC SUPERVISOR 1 CHANNEL SOT23-3
Datasheets:
MAX6328UR31+T(1).pdfMAX6328UR31+T(2).pdfMAX6328UR31+T(3).pdfMAX6328UR31+T(4).pdfMAX6328UR31+T(5).pdfMAX6328UR31+T(6).pdf
Lead Free Status / RoHS Status:
ROHS3 Compliant
Stock Condition:
New original, 24018 pcs Stock Available.
ECAD Model:
Ship From:
Hong Kong
Shipment Way:
DHL/Fedex/TNT/UPS

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Part Number MAX6328UR31+T
Manufacturer / Brand Analog Devices Inc./Maxim Integrated
Stock Quantity 24018 pcs Stock
Category Integrated Circuits (ICs) > Power Management (PMIC) - Supervisors
Description IC SUPERVISOR 1 CHANNEL SOT23-3
Lead Free Status / RoHS Status: ROHS3 Compliant
RFQ MAX6328UR31+T Datasheets MAX6328UR31+T Details PDF
MAX6328UR31+T Details PDF for FR.pdf
MAX6328UR31+T Details PDF for KR.pdf
MAX6328UR31+T Details PDF for IT.pdf
MAX6328UR31+T Details PDF for ES.pdf
MAX6328UR31+T Details PDF for DE.pdf
Voltage - Threshold 3.08V
Type Simple Reset/Power-On Reset
Supplier Device Package SOT-23-3
Series -
Reset Timeout 100ms Minimum
Reset Active Low
Package / Case TO-236-3, SC-59, SOT-23-3
Package Tape & Reel (TR)
Output Open Drain or Open Collector
Operating Temperature -40°C ~ 85°C (TA)
Number of Voltages Monitored 1
Mounting Type Surface Mount
Base Product Number MAX6328

Packaging & ESD

Industry-standard static shielding packaging is used for electronic components.Anti-static, light-transparent materials allow easy identification of ICs and PCB assemblies.
The packaging structure provides electrostatic protection based on Faraday cage principles.This helps protect sensitive components from static discharge during handling and transportation.


All products are packed in ESD-safe anti-static packaging. Outer packaging labels include part number, brand, and quantity for clear identification. Goods are inspected prior to shipment to ensure proper condition and authenticity.

ESD protection is maintained throughout packing, handling, and global transportation. Secure packaging provides reliable sealing and resistance during transit. Additional cushioning materials are applied when required to protect sensitive components.

QC(Part Testing by IC Components)Quality Warranty

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Global Shipment by DHL/FedEx/TNT/UPS

Shipping Fees reference DHL/FedEx
1). You can offer your express delivery account for shipment, ifyou haven’t any express account for shipment, we can offer our account inadvance.
2). Use our account for shipment, Shipment charges(Reference DHL/FedEx, Different Countries has different price.)
Shipment charges: (Reference DHL and FedEX)
Weight(KG): 0.00kg-1.00kg Price(USD$) : USD$60.00
Weight(KG): 1.00kg-2.00kg Price(USD$) : USD$80.00
* The price of cost is reference with DHL/FedEx. The detail charges, please contact us. Different country the express charges are different.



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MAX6328UR31+T Product Details:

The MAX6328UR31+T is a single-channel power management integrated circuit (PMIC) supervisor from Maxim Integrated. It is designed to provide reliable power-on reset (POR) and monitoring functions in a wide range of electronic devices and systems.

The MAX6328UR31+T is part of Maxim's PMIC supervisor product category, which is a subcategory of integrated circuits (ICs). It is housed in a compact SOT-23-3 package, making it suitable for space-constrained applications. The device operates over a wide temperature range of -40°C to 85°C, ensuring reliable performance in diverse environmental conditions.

The key features of the MAX6328UR31+T include:

- Voltage monitoring and power-on reset (POR) functionality

- Single-channel design with an open-drain or open-collector output

- Adjustable reset threshold with a default value of 3.08V

- Minimum reset timeout of 100 ms

- Active-low logic output

- Lead-free and RoHS-compliant construction

The primary advantages of the MAX6328UR31+T include its small form factor, wide operating temperature range, and reliable power monitoring capabilities. It is well-suited for applications that require robust power management and supervision, such as portable electronics, industrial controls, and embedded systems.

The MAX6328UR31+T is compatible with a variety of electronic devices and can be used in conjunction with other power management components, such as voltage regulators and power supplies.

Equivalent or alternative models available from Maxim Integrated include:

- MAX6327 series: Similar PMIC supervisors with different voltage monitoring thresholds and features

- MAX6328 series: Variants of the MAX6328 with different package options and temperature ranges

- MAX6329 series: Supervisors with integrated voltage reference and additional monitoring capabilities

These alternative models may offer different reset thresholds, package options, or additional features to meet the specific requirements of your application.

MAX6328UR31+T Image
MAX6328UR31+T (1)

MAX6328UR31+T Key Technical Attributes

Manufacturer Part Number MAX6328UR31+T

Manufacturer Maxim Integrated

Main Category Integrated Circuits (ICs)

MAX6328UR31+T Packing Size

Package Type SOT-23-3

Material Type Tape & Reel (TR)

Pin Configuration 3 pins

Thermal Characteristics -40°C ~ 85°C (TA)

Electrical Properties 3.08V voltage reset

MAX6328UR31+T Application

Application includes use in power monitoring circuits within commercial and industrial electronics for simple reset/power-on reset functions.

MAX6328UR31+T Features

The MAX6328UR31+T features a supervisor open drain or open collector with one monitoring channel. The reset logic is active low, and there is a reset timeout of 100 ms minimum. It is designed for mounting on the surface and its quiescent current is minimal, ensuring low power consumption. The reset tolerance feature provides reliable operation by maintaining system integrity through automatic resets under specific conditions.

MAX6328UR31+T Quality and Safety Features

ROHS compliant indicating lead free and safety adherence

High reliability under industry standard supervision protocol of operational temperatures ranging from -40°C to 85°C.

MAX6328UR31+T Compatibility

Compatible with applications requiring voltage monitoring, open drain or open collector output with active low logic type reset.

MAX6328UR31+T Datasheet PDF

The most authoritative and detailed datasheet PDF for MAX6328UR31+T is available on our website. Customers are recommended to download it directly on the current page for complete and accurate technical information.

Quality Distributor

IC-Components is a premium distributor of Maxim Integrated products, providing only the highest quality components. For the best deals and genuine products like MAX6328UR31+T, get a quote directly from our website. Trust in IC-Components for your electronic component needs.

Frequently Asked Questions

What are the key design considerations when using the MAX6328UR31+T supervisor IC in a 3.3V system with brownout protection?
When integrating the MAX6328UR31+T into a 3.3V system, ensure the monitored supply voltage remains above the 3.08V reset threshold to avoid unintended resets during brownout conditions. The device’s open-drain RESET output requires an external pull-up resistor (typically 10kΩ to VCC or a higher voltage rail if level-shifting is needed), and its active-low logic means the reset signal asserts low when VCC drops below 3.08V. Designers must account for power supply ramp rates—slower ramps may extend the reset timeout beyond the minimum 100ms, potentially affecting downstream logic initialization timing.
Can the MAX6328UR31+T be used to monitor dual-supply systems, such as ±5V analog rails?
No, the MAX6328UR31+T is designed for single-supply monitoring only and cannot directly monitor dual (positive and negative) voltage rails. It operates with a single supply voltage (V+) ranging from 1.2V to 5.5V and monitors only that positive rail against its fixed 3.08V threshold. For dual-rail supervision, a second supervisor or a differential monitoring circuit is required; using this part alone would leave the negative rail unprotected.
How does the open-drain output of the MAX6328UR31+T affect interfacing with microcontrollers that have internal pull-ups?
The MAX6328UR31+T’s open-drain RESET output can interface directly with microcontroller reset pins that include internal pull-up resistors, but you must verify the MCU’s pull-up strength and voltage compatibility. If the MCU operates at a different logic level (e.g., 1.8V), ensure the pull-up is connected to the appropriate rail and that the MAX6328UR31+T’s output can sink sufficient current (up to 1.5mA typical) without exceeding voltage limits. In mixed-voltage designs, an external pull-up to the lower voltage rail may be necessary to avoid overstressing the MCU’s input.
Is the MAX6328UR31+T suitable for automotive or industrial environments with extended temperature cycling?
The MAX6328UR31+T is rated for operation from –40°C to +85°C (TA), making it suitable for many industrial applications, but it is not AEC-Q100 qualified and therefore not recommended for automotive use. In high-reliability industrial systems with frequent thermal cycling, consider PCB layout practices such as minimizing trace inductance to the VCC pin and placing the decoupling capacitor (<1µF ceramic, placed close to the device) to maintain stability under transient thermal stress.
What precautions should be taken when replacing a push-pull supervisor like the TPS3823 with the MAX6328UR31+T?
Replacing a push-pull supervisor (e.g., TPS3823) with the MAX6328UR31+T requires adding an external pull-up resistor on the RESET pin, as the latter uses an open-drain output. Additionally, verify timing compatibility—the MAX6328UR31+T has a minimum 100ms reset timeout, which may differ from the original part. Ensure the 3.08V threshold aligns with your system’s brownout requirements; if the original device had a different threshold (e.g., 2.93V), recalibration of fault response may be necessary.
Can the MAX6328UR31+T be used in battery-powered IoT devices where quiescent current is critical?
Yes, the MAX6328UR31+T has a very low quiescent current (typically 0.6µA), making it well-suited for battery-powered IoT applications. However, ensure the external pull-up resistor on the RESET line is not too low in value (e.g., avoid <10kΩ), as it will increase standby current draw. A 47kΩ to 100kΩ pull-up is recommended to balance noise immunity and power efficiency in long-life deployments.
How does the reset timeout period of the MAX6328UR31+T impact system startup sequencing in multi-IC designs?
The MAX6328UR31+T guarantees a minimum 100ms reset timeout after VCC exceeds 3.08V, which must be factored into power-up sequencing for FPGAs, MCUs, or ASICs that require stable clocks or configuration signals before release from reset. If downstream devices need longer initialization times, consider adding a delay circuit or selecting a supervisor with adjustable timeout. Conversely, if faster startup is needed, verify that 100ms meets your system’s timing budget—using this part may necessitate firmware adjustments to handle delayed peripheral readiness.
What are the risks of using the MAX6328UR31+T in systems with noisy power supplies or frequent voltage transients?
In noisy environments, voltage spikes or ripple near the 3.08V threshold can cause false resets. The MAX6328UR31+T includes built-in hysteresis (typically 50mV), which helps prevent chatter, but additional filtering—such as a small RC network (e.g., 100Ω + 100nF) on the VCC pin—may be required for high-noise applications. Avoid long traces to the VCC sense point, as inductance can couple transients and degrade supervision accuracy.
Can the MAX6328UR31+T monitor voltages above 5.5V through a voltage divider, and what are the design trade-offs?
Yes, the MAX6328UR31+T can monitor higher voltages (e.g., 12V) using a resistive voltage divider to scale the input below 5.5V. However, this introduces accuracy dependencies on resistor tolerances and temperature coefficients, potentially shifting the effective reset threshold. Additionally, leakage currents and noise pickup increase with high-value divider resistors. For precision applications, use 1% or better resistors and keep divider impedance low (<100kΩ total) to minimize errors and ensure reliable operation across temperature.
Is the MAX6328UR31+T a drop-in replacement for the MAX809T in a 3.3V system?
The MAX6328UR31+T is not a direct drop-in replacement for the MAX809T due to key differences: the MAX809T has a push-pull output and a 3.08V threshold (similar), but the MAX6328UR31+T uses an open-drain output requiring an external pull-up. Additionally, the MAX809T has a shorter typical reset timeout (~140ms vs. 100ms min for MAX6328UR31+T). If replacing, update the schematic to include a pull-up resistor and verify that the timing and logic polarity meet system requirements.

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