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Home Products Integrated Circuits (ICs)PMIC - Supervisors~~S-80840CNUA-B8ZT2G~~

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S-80840CNUA-B8ZT2G - ABLIC Inc.

Name: ABLIC Inc. S-80840CNUA-B8ZT2G
Brand: ABLIC Inc.
SKU: S-80840CNUA-B8ZT2G
Availability: InStock
Rating: 5 (10 reviews)

Manufacturer Part Number: S-80840CNUA-B8ZT2G

Manufacturer: ABLIC

Allelco Part Number: 32D-S-80840CNUA-B8ZT2G

Warranty: 1 Year Allelco Warranty - Find out more

Stock Status:: 94,530 pcs available, New & Original

Parts Description: IC SUPERVISOR 1 CHANNEL SOT89-3

Package: SOT-89-3

Data sheet: S-80840CNUA-B8Z.pdf

HTML Datasheet
S-808xxC Series.pdf

RoHs Status: RoHS Compliant

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In stock: 94530

Specifications

S-80840CNUA-B8ZT2G Tech Specifications
ABLIC Inc. - S-80840CNUA-B8ZT2G technical specifications, attributes, parameters and parts with similar specifications to ABLIC Inc. - S-80840CNUA-B8ZT2G

Product Attribute	Attribute Value
Manufacturer	ABLIC
Voltage - Threshold	4V
Type	Voltage Detector
Supplier Device Package	SOT-89-3
Series	S-808xxC
Reset Timeout	-
Reset	Active Low

Product Attribute	Attribute Value
Package / Case	TO-243AA
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	S-80840

Environmental & Export Classifications

ATTRIBUTE	DESCRIPTION
RoHs Status	RoHS Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
ECCN	EAR99
HTSUS	8542.39.0001

Parts Introduction

S-80840CNUA-B8ZT2G (1)

Manufacturer Part Number

S-80840CNUA-B8ZT2G

Manufacturer

ablic

Introduction

The ablic S-80840CNUA-B8ZT2G is a voltage detector IC that monitors a single voltage source and provides an active-low reset signal when the voltage falls below a preset threshold. It is designed for use in a variety of power management applications, offering reliable voltage monitoring and protection.

Product Features and Performance

Monitors a single voltage source

Voltage threshold: 4V

Output type: Open drain or open collector

Active-low reset signal

Operating temperature range: -40°C to 85°C

Product Advantages

Accurate voltage monitoring to protect sensitive components

Low power consumption for energy-efficient operation

Small footprint in a space-saving SOT-89-3 package

Suitable for a wide range of applications

Key Reasons to Choose This Product

Reliable voltage detection for critical system protection

Easy integration into power management circuits

Robust performance across a wide temperature range

Cost-effective solution for voltage monitoring needs

Quality and Safety Features

Rigorous quality control during manufacturing

Compliance with relevant safety standards

Compatibility

The S-80840CNUA-B8ZT2G is compatible with a variety of electronic systems and devices that require voltage monitoring and protection.

Application Areas

Power supplies

Battery-powered equipment

Industrial control systems

Automotive electronics

Consumer electronics

Product Lifecycle

The S-80840CNUA-B8ZT2G is an active product. At this time, there are no known equivalent or alternative models available. If you require more information or have any questions, please contact our sales team through our website.

Frequently Asked Questions(FAQ)

What is the typical operating current for the S-80840CNUA-B8ZT2G voltage supervisor, and how does it impact battery-powered applications?: The S-80840CNUA-B8ZT2G draws only 3.5 µA (typical) in active mode, making it suitable for low-power systems where energy efficiency is critical. This ultralow quiescent current enables extended battery life in portable devices such as wearables or IoT sensors that rely on coin-cell or lithium batteries. When selecting a supervisor IC, designers often prioritize this parameter over absolute accuracy, as a 3.5 µA draw may represent less than 1% of total system current in sleep states, minimizing leakage penalties during inactive periods.

How does the 4V threshold of the S-80840CNUA-B8ZT2G compare to other common supervisor voltages like 3.3V or 5V in terms of noise immunity and system reliability?: With a fixed 4V detection threshold, the S-80840CNUA-B8ZT2G provides robust noise margin above standard logic supply rails like 3.3V or 2.5V but below typical 5V rails. This positioning makes it ideal for systems transitioning between power domains or using intermediate voltage rails where a 4V reference offers better tolerance to transient dips compared to tighter thresholds. In contrast, a 3.3V supervisor would trip earlier under load-induced drops, potentially causing unnecessary resets, while a 5V variant might fail to detect early undervoltage conditions. The 4V choice balances responsiveness with stability across diverse load profiles.

Can the S-80840CNUA-B8ZT2G be used with both push-pull and open-drain outputs without external components, and what are the implications for fan-out capability?: The S-80840CNUA-B8ZT2G features an open drain or open collector output configuration, requiring an external pull-up resistor to define the high state when not asserting reset. This design inherently limits fan-out due to reliance on passive pull-up rather than buffered drive strength. For driving multiple logic inputs or LED indicators directly, additional buffering or level shifting may be needed depending on capacitance and rise time requirements. A designer considering parallel monitoring of multiple supplies should evaluate whether the SOT-89-3 package’s limited thermal performance supports sustained output assertion under higher loads.

What happens if the input voltage to the S-80840CNUA-B8ZT2G drops slightly below 4V but remains within the hysteresis window, and how does this prevent oscillation in noisy environments?: The S-80840CNUA-B8ZT2G incorporates built-in hysteresis—typically around 50–100 mV—which prevents chatter when the monitored voltage hovers near the 4V threshold during rapid transients. If VCC dips to 3.95V and recovers back above 4.05V, the device will maintain its reset state until the voltage settles well clear of the upper comparator trip point. This behavior avoids false resets caused by brownout conditions in systems with poor PSU regulation, ensuring stable operation even in electrically noisy industrial settings.

Is it possible to adjust the reset delay timing of the S-80840CNUA-B8ZT2G using external components, and what factors influence its default timeout behavior?: The S-80840CNUA-B8ZT2G does not have a programmable reset timeout; instead, it asserts reset immediately upon detecting undervoltage and releases only after VCC exceeds the threshold by the hysteresis amount. However, the release timing can appear delayed if external RC networks are present at the input due to filtering capacitors. Designers must ensure any input filtering does not exceed recommended values to avoid masking real undervoltage events. In most cases, minimal external capacitance suffices, preserving response speed while maintaining noise immunity.

How does the S-80840CNUA-B8ZT2G handle reverse polarity protection, and can it survive accidental reverse voltage application?: The S-80840CNUA-B8ZT2G lacks internal reverse-voltage clamping circuitry. Applying negative voltage beyond the absolute maximum rating (typically -0.3V on VDD) can damage the device due to parasitic diode conduction. To mitigate risk in automotive or mobile applications, series blocking diodes or dedicated protection circuits should be implemented upstream. Alternatively, using a bidirectional TVS diode rated for the expected transient levels provides robust defense against accidental polarity reversal without affecting normal operation during forward bias.

What is the significance of the MSL 1 classification for the S-80840CNUA-B8ZT2G, and how does it affect handling during assembly?: MSL 1 indicates that the S-80840CNUA-B8ZT2G is moisture-insensitive and can be stored indefinitely under normal ambient conditions without special drying procedures prior to reflow soldering. This simplifies inventory management and reduces production downtime associated with baking parts. However, once removed from storage, it must still adhere to standard ESD protocols during handling, especially given the sensitive CMOS architecture inside the SOT-89-3 package.

Why choose the S-80840CNUA-B8ZT2G over integrated power regulators with built-in supervision functions?: While some LDOs include basic POR functionality, they often lack precision thresholds tailored to specific microcontrollers’ minimum operating voltages. The S-80840CNUA-B8ZT2G offers standalone, ultra-low-current monitoring at a fixed 4V level, enabling precise control without consuming significant quiescent current from the main rail. This separation allows designers to optimize each subsystem independently—using a dedicated supervisor for critical resets while pairing it with a high-efficiency regulator for power delivery—resulting in better overall system reliability and power budget allocation.

Parts with Similar Specifications

The three parts on the right have similar specifications to ABLIC Inc. S-80840CNUA-B8ZT2G

Product Attribute
Part Number	S-80840CNUA-B8ZT2U	S-80840CNNB-B8ZT2G	S-80840CNNB-B8ZT2U	S-80840CNPF-B8ZTFG
Manufacturer	ABLIC Inc.	ABLIC Inc.	ABLIC Inc.	ABLIC Inc.
Base Product Number	-	DAC34H84	MAX500	ADS62P42
Package	-	Tape & Reel (TR)	Tube	Tape & Reel (TR)
Reset	-	-	-	-
Output	-	-	-	-
Number of Voltages Monitored	-	-	-	-
Series	-	-	-	-
Voltage - Threshold	-	-	-	-
Operating Temperature	-	-40°C ~ 85°C	0°C ~ 70°C	-40°C ~ 85°C
Mounting Type	-	Surface Mount	Through Hole	Surface Mount
Package / Case	-	196-LFBGA	16-DIP (0.300', 7.62mm)	64-VFQFN Exposed Pad
Type	-	-	-	-
Reset Timeout	-	-	-	-
Supplier Device Package	-	196-NFBGA (12x12)	16-PDIP	64-VQFN (9x9)

S-80840CNUA-B8ZT2G Datasheet PDF

Download S-80840CNUA-B8ZT2G pdf datasheets and ABLIC Inc. documentation for S-80840CNUA-B8ZT2G - ABLIC Inc..

HTML Datasheet: S-808xxC Series.pdf

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Customer Reviews

Evaluation: 10 Articles

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Aug 5, 2026

Purchased this DSP controller for a motor control application. Stable processing performance and very good response under varying loads.
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Jul 30, 2026

This FPGA handled our logic design without any surprises. Configuration completed quickly and timing met the project requirements.
Nord***mbedded

Jul 20, 2026

Reliable FPGA with predictable behavior. Configuration and testing went smoothly, making development faster than expected.
Arch***ct

Jul 15, 2026

Used this device in a communication signal processing board. Stable timing and no unexpected issues during implementation.
FPGA***lorer88

Jul 7, 2026

The FPGA works properly and all functions operate as expected. Documentation required some additional research, but overall it is a usable device for smaller signal processing projects.
Nath***oleman

Jun 29, 2026

Used this sensor component in an industrial automation setup. Detection accuracy was consistent and installation was straightforward.
Emil***rperTech

Jun 23, 2026

Works exactly as described. I used it as a USB-to-SPI bridge in a small MCU development project and communication was stable from the first setup.
Liam***terTech

Jun 15, 2026

Used this CPLD in a logic control project. Programming was straightforward and signal timing matched the design requirements.
Nath***rooks

Jun 11, 2026

Installed this power component in a converter board. Output remained stable under different load conditions and thermal performance was better than expected.
Dani***alkerTech

Jun 1, 2026

Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

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Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

Use your express account for shipment if you have one.
Use our account for the shipment. Refer to the table below for the approximate charges.

(Different time frame / countries / package size has different price.)

Delivery Method

Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region	Country	Logistic Time(Day)
America	United States	5
America	Brazil	7
Europe	Germany	5
	United Kingdom	4
	Italy	5
Oceania	Australia	6
Oceania	New Zealand	5
Asia	India	4
Asia	Japan	4
Middle East	Israel	6

DHL & FedEx Shipment Charges Reference
Shipment charges(KG)	Reference DHL(USD$)
0.00kg-1.00kg	USD$30.00 - USD$60.00
1.00kg-2.00kg	USD$40.00 - USD$80.00
2.00kg-3.00kg	USD$50.00 - USD$100.00

Note:: The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.

QC (Quality Warranty)
Payment Support
Packaging
Certifications & Memberships

QC (Quality Warranty)

Allelco is committed to exceeding customer expectations through customer service excellence, order accuracy, and on-time delivery.
This is achieved through our commitment to the continual improvement of our processes, services, and products.

Strict quality inspection builds a solid foundation for electronic component quality.

Visual inspection
Performance testing and reliability verification
Standardized full-process testing
Precise control of every parameter

We eliminate defective components and ensure the stable operation of electronic devices through professional quality standards.

Quality Inspection

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Fast Sourcing & Delivery

Contact us if you have any questions.

Phone: +00852 9146 4856
Email: info@allelco.com

Packaging

Electrostatic Discharge Protection and Handling

All electrostatic-sensitive components are handled in accordance with electrostatic discharge control procedures. The products are hermetically sealed in anti-static safe packaging to prevent electrostatic damage. Appropriate labeling is also applied for identification and traceability. This ensures product integrity during storage, handling and transportation.

ESD

Certifications & Memberships

Third-party certified, strict quality control. Our certification

ISO 9001: 2015
ISO 13485: 2016
ISO 14001: 2015
ISO 28000: 2007
ISO 45001: 2018
GB/T 27922-2011

SMTA
IPC
ESD
PSMA