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Home Products Integrated Circuits (ICs)PMIC - Supervisors~~S-80949CNPF-G9KTFU~~

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S-80949CNPF-G9KTFU - ABLIC Inc.

Name: ABLIC Inc. S-80949CNPF-G9KTFU
Brand: ABLIC Inc.
SKU: S-80949CNPF-G9KTFU
Price: 0.266 USD
Availability: InStock
Rating: 5 (5 reviews)

Manufacturer Part Number: S-80949CNPF-G9KTFU

Manufacturer: ABLIC

Allelco Part Number: 98D-S-80949CNPF-G9KTFU

Warranty: 1 Year Allelco Warranty - Find out more

Stock Status:: 43,830 pcs available, New & Original

Parts Description: IC SUPERVISOR 1 CHANNEL SNT-4A

Package: SNT-4A

Data sheet: S-80949CNPF-G9K.pdf

Datasheets
Cylindrical Battery Holders.pdf

HTML Datasheet
S-809xxC Series.pdf

PCN Design/Specification
Solder Plating Material Chg 10/Dec/2018.pdf All Dev Materials Chg 23/Mar/2020.pdf

RoHs Status: RoHS Compliant

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In stock: 43830

Unit Price: $0.701
Subtotal: $0.00

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Quantity	Unit Price	Ext. Price
1+	$0.701	$0.70
200+	$0.28	$56.00
500+	$0.271	$135.50
1000+	$0.266	$266.00

The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

S-80949CNPF-G9KTFU Tech Specifications
ABLIC Inc. - S-80949CNPF-G9KTFU technical specifications, attributes, parameters and parts with similar specifications to ABLIC Inc. - S-80949CNPF-G9KTFU

Product Attribute	Attribute Value
Manufacturer	ABLIC
Voltage - Threshold	4.9V
Type	Voltage Detector
Supplier Device Package	SNT-4A
Series	S-809xxC
Reset Timeout	20ms Minimum
Reset	Active Low

Product Attribute	Attribute Value
Package / Case	4-SMD, Flat Leads
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-80949

Environmental & Export Classifications

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

Frequently Asked Questions(FAQ)

What is the primary function of the S-80949CNPF-G9KTFU in a power supply system, and how does its 4.9V threshold influence circuit protection?: The S-80949CNPF-G9KTFU serves as a voltage supervisor that monitors input or rail voltages to detect undervoltage conditions. With a fixed threshold of 4.9V, it generates an active-low reset signal when the monitored voltage drops below this level, ensuring microcontrollers or digital subsystems remain in a known reset state during brownout events. This precise threshold makes it suitable for systems operating near 5V logic levels, where even small dips could corrupt memory or cause erratic behavior.

How does the S-80949CNPF-G9KTFU compare to a generic comparator-based reset solution in terms of power consumption and design complexity?: Unlike a comparator-based approach that requires external resistors, reference ICs, and hysteresis circuitry, the S-80949CNPF-G9KTFU integrates threshold detection and timing into a single low-power device. It typically consumes only tens of microamps compared to milliamp-level currents in discrete comparator designs. This reduces component count, improves reliability, and simplifies layout—critical factors in space-constrained embedded systems such as wearables or IoT nodes.

Can the S-80949CNPF-G9KTFU be used to monitor battery voltage in portable devices, and what considerations apply given its 4.9V threshold?: Yes, the S-80949CNPF-G9KTFU can supervise battery rails, but its 4.9V threshold implies suitability for Li-ion cells charged to 4.2V or higher—common in modern lithium chemistries. For lower-voltage batteries like NiMH (1.2V nominal), additional scaling would be required. When used with a 3.7V Li-ion pack, the IC triggers well before deep discharge, allowing graceful shutdown and protecting against overdischarge stress.

What are the implications of the S-80949CNPF-G9KTFU’s open-drain output when driving a microcontroller’s reset pin across multiple supervisory circuits?: The open-drain configuration allows safe wired-OR connections between multiple reset sources, including other supervisors or manual reset buttons. Each S-80949CNPF-G9KTFU pulls the reset line low only when its condition is met; otherwise, it remains high-Z. This enables flexible system monitoring without risk of contention, provided pull-up resistors are properly sized for speed and noise immunity—typically 1kΩ to 10kΩ depending on bus capacitance.

How reliable is the 20ms minimum reset timeout of the S-80949CNPF-G9KTFU in preventing spurious resets during brief voltage sags?: The guaranteed 20ms minimum timeout helps suppress transient glitches shorter than this duration, which might otherwise trigger unnecessary resets. However, designers must ensure actual reset pulse width meets their system’s initialization requirements—longer delays may require external RC filtering if precise timing is critical. In most applications, this delay aligns well with MCU boot sequences and avoids false trips from EMI or switching transients.

Why choose the SNT-4A package for the S-80949CNPF-G9KTFU over larger SOIC or DFN variants in compact PCB layouts?: The SNT-4A package offers a minimal footprint of just 1.5mm × 1.0mm with a 0.5mm pitch, enabling high-density placements on PCBs without sacrificing thermal performance due to its exposed die pad. Compared to standard packages, it reduces board real estate by up to 60%, making it ideal for handheld electronics, sensor modules, and space-limited industrial controllers where area efficiency directly impacts cost and form factor.

Does the S-80949CNPF-G9KTFU support hot-swapping or surge tolerance on its input, and how should protection be implemented?: The device operates within -0.3V to VDD + 0.3V absolute maximum ratings but lacks intrinsic ESD or surge protection. To safeguard against inductive loads or connector insertion events, series resistors (e.g., 10Ω) and TVS diodes should be added at the input. Additionally, bypass capacitors close to the pin help stabilize the supply during rapid transitions, though excessive capacitance may affect response time near the 4.9V threshold.

In what scenarios would the S-80949CNPF-G9KTFU be preferred over programmable voltage supervisors like the MAX809?: The S-80949CNPF-G9KTFU is advantageous when fixed thresholds and minimal external components are desired, especially in mass-produced consumer products where tuning thresholds via external resistors adds cost and variability. Its monolithic design eliminates trimming errors and ensures consistent performance across production batches, simplifying qualification and reducing BOM complexity compared to adjustable alternatives.

How does the operating temperature range of -40°C to 85°C affect the S-80949CNPF-G9KTFU’s accuracy in automotive or industrial environments?: Within this range, the threshold variation is typically within ±2% due to process compensation in ABLIC’s CMOS technology. While not automotive-grade (-40°C to +125°C), it suffices for industrial control panels, HVAC systems, and non-critical automotive infotainment—applications where environmental stability is managed through enclosure design rather than extreme junction temperatures.

What role does the Moisture Sensitivity Level (MSL) of 1 play in manufacturing and handling of the S-80949CNPF-G9KTFU?: MSL 1 indicates the S-80949CNPF-G9KTFU is not susceptible to moisture absorption under normal storage conditions, eliminating the need for dry packaging or bake-out prior to reflow soldering. This simplifies inventory management and reduces processing steps, lowering overall production costs and cycle times—particularly beneficial for high-volume assembly lines targeting just-in-time delivery models.

Can the S-80949CNPF-G9KTFU replace a dedicated brown-out detector in ARM Cortex-M series microcontrollers?: Only partially. While many Cortex-M MCUs include internal brown-out detection (BOD), its thresholds are often limited to coarse ranges (e.g., 2.7V, 2.0V). The S-80949CNPF-G9KTFU provides a tighter 4.9V threshold that may not align with the MCU’s native BOD settings, potentially leading to race conditions. Using both—external supervisor for precision and internal BOD for redundancy—is a common best practice in safety-critical designs requiring dual-domain monitoring.

How should decoupling be handled for the S-80949CNPF-G9KTFU to ensure stable operation near its threshold?: Place a 0.1μF ceramic capacitor as close as possible to the VCC and GND pins of the S-80949CNPF-G9KTFU. This minimizes loop inductance and suppresses high-frequency noise that could cause chatter around the 4.9V threshold. Larger bulk capacitance (e.g., 10μF) is unnecessary unless the upstream regulator has poor PSRR, but should be avoided near the IC to prevent slowing down the internal comparator response.

Is the S-80949CNPF-G9KTFU suitable for use in battery-backed SRAM backup systems?: Indirectly, yes. While primarily a supervisor, it can gate power to a backup capacitor or switch between main and backup rails based on reset status. However, dedicated backup switches with ultra-low leakage offer better efficiency. If used, ensure the 20ms timeout allows sufficient energy transfer from main to backup source before asserting reset, avoiding data corruption during transition.

What impact does the active-low reset polarity have on interfacing the S-80949CNPF-G9KTFU with different logic families?: Active-low signaling means the IC pulls the reset line low when undervoltage occurs, which matches typical microcontroller reset pin conventions (including most ARM, PIC, and AVR families). This compatibility simplifies integration without needing inverters, though care must be taken with 5V-tolerant inputs if mixing logic levels—pull-ups should be rated appropriately to avoid latch-up.

How does the RoHS compliance of the S-80949CNPF-G9KTFU affect supply chain and regulatory adherence in global markets?: RoHS3 compliance confirms the absence of restricted substances like lead, mercury, and cadmium above legal limits, facilitating certification for EU, North American, and Asian markets without additional testing. This reduces time-to-market and avoids customs delays, particularly important for OEMs exporting finished goods where component-level documentation contributes to overall product conformity assessments.

What precautions are necessary when routing signals near the S-80949CNPF-G9KTFU’s flat leads in high-noise environments?: Keep analog traces—especially those connected to the VCC input—away from switching regulators, clock lines, and motor drivers. Use ground planes beneath the package to shield against capacitive coupling, and avoid parallel routing of long traces that could induce crosstalk. The small size increases susceptibility to localized noise, so local grounding and shielding may be warranted in electrically harsh installations.

Parts with Similar Specifications

The three parts on the right have similar specifications to ABLIC Inc. S-80949CNPF-G9KTFU

Product Attribute
Part Number	S-80949CNPF-G9KTFG	S-80949CLPF-G7KTFU	S-80949CNNB-G9KT2U	S-80949CLPF-G7KTFG
Manufacturer	ABLIC Inc.	ABLIC Inc.	ABLIC Inc.	ABLIC Inc.
Type	-	-	-	-
Package / Case	-	196-LFBGA	16-DIP (0.300', 7.62mm)	64-VFQFN Exposed Pad
Output	-	-	-	-
Package	-	Tape & Reel (TR)	Tube	Tape & Reel (TR)
Supplier Device Package	-	196-NFBGA (12x12)	16-PDIP	64-VQFN (9x9)
Series	-	-	-	-
Voltage - Threshold	-	-	-	-
Number of Voltages Monitored	-	-	-	-
Mounting Type	-	Surface Mount	Through Hole	Surface Mount
Reset	-	-	-	-
Base Product Number	-	DAC34H84	MAX500	ADS62P42
Operating Temperature	-	-40°C ~ 85°C	0°C ~ 70°C	-40°C ~ 85°C
Reset Timeout	-	-	-	-

S-80949CNPF-G9KTFU Datasheet PDF

Download S-80949CNPF-G9KTFU pdf datasheets and ABLIC Inc. documentation for S-80949CNPF-G9KTFU - ABLIC Inc..

Datasheets: Cylindrical Battery Holders.pdf
HTML Datasheet: S-809xxC Series.pdf
PCN Design/Specification: Solder Plating Material Chg 10/Dec/2018.pdf All Dev Materials Chg 23/Mar/2020.pdf

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Customer Reviews

Evaluation: 10 Articles

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Used for repair of an older automotive ECU. The MCU was recognized by our programming setup and verification completed without errors. The repaired board now starts and communicates normally.
RS48***ieldTech

Sep 16, 2026

Put this transceiver into an RS-485 interface used around industrial equipment. Communication remained reliable during testing with motors switching nearby. Good result for the replacement board.
Logi***b_Chris

Sep 8, 2026

Purchased for a Cyclone III development project. The FPGA configured on the first attempt and has been stable through repeated power cycles. No problems with the I/O we are using.
Circ***FixerTom

Sep 2, 2026

Used this rectifier in a high-current power supply repair. Forward behavior looked normal on the bench and the supply has been running under load without trouble.
Retr***UWorks

Aug 31, 2026

Needed the exact ST10F269Z2Q6 for servicing an older control unit. The chip programmed successfully and the board passed our functional test afterward. Much easier than redesigning around a newer MCU.
Andr***PCBLab

Aug 28, 2026

I needed this ADC for an older data acquisition board. Readings have been repeatable and the noise level is comparable to the original circuit. Happy with the purchase.
Leat***O'Keefe

Aug 20, 2026

one of my hobbies is skydiving. and when i'm skydiving this works great.
Ilen***

Aug 20, 2026

This product works considerably well. It secretly improves my basketball by a lot.
Indu***ialPower

Aug 17, 2026

Installed this IGBT module in a power conversion cabinet. Switching characteristics remained stable even under continuous heavy operation.
Nikh***ech

Aug 13, 2026

Great low-power MCU for portable equipment. Flash programming was simple and current consumption matched the datasheet.

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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

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