Image is for your reference only,please check specifications for details

L4981A - ST Microelectronics
Manufacturer:
ST Microelectronics
ManyChip's Part#:
MC50069981
Category:
Power Management IC
Package:
DIP-20
Datasheet:
Datasheet 3D Model
Description:
L4981 Series 19.5V 16mA Through Hole Power Factor Corrector - DIP-20
Stock Locations:
Availability:
10,798 pcs In Stock
MOQ:
1 pcs
Unit Price:
$ 2.43

Updated at 01/11/2025 10:30:15(UTC+8)

Certifications

ManyChip is committed to product quality and safety with ISO 9001, ISO 13485, ISO 45001, UL, RoHS, CQC and REACH certifications.

Description

The L4981A is a Power Factor Corrector provides the necessary features to achieve a very high power factor up to 0.99. Realized in BCD 60II technology this power factor corrector (PFC) pre-regulator contains all the control functions for designing a high efficiency-mode power supply with sinusoidal line current consumption. The L4981 can be easily used in systems with mains voltages between 85V to 265V without any line switch. This new PFC offers the possibility to work at fixed frequency optimizing the size of the input filter; the operating frequency mode working with an average current-mode PWM controller, maintaining sinusoidal line current without slope compensation. Besides power MOSFET gate driver, precise voltage reference (externally available), error amplifier, under-voltage lockout, current sense and the soft start are included. To limit the number of the external components, the device integrates protections as overvoltage and overcurrent.
Limit line current distortion to <5%
Universal input mains
Feed forward line and load regulation
Average current mode PWM for minimum noise sensitivity
High current bipolar and DMOS totem pole output
Under voltage lockout with hysteresis and programmable turn on
Threshold overvoltage, overcurrent protection
Precise 2% on chip reference externally available
Soft-start

Show

L4981A Specifications

Attribute	Attribute Value

Datasheet	Datasheet
3D Model	3D Model
Mounting Style	Through Hole
Number of Pins	20 Pin
Case/Package	DIP-20
Frequency	115 kHz
Supply Voltage (DC)	19.5V (max)
Number of Outputs	1 Output
Output Voltage	7.50 V
Number of Positions	20 Position
Switching Frequency	100 kHz
Operating Temperature (Max)	125 ℃
Operating Temperature (Min)	-40 ℃
Supply Voltage	14.5V ~ 19.5V
Supply Voltage (Max)	19.5 V
	Show
Size-Length	25.4 mm
Size-Width	7.1 mm
Size-Height	2.68 mm
Operating Temperature	-40℃ ~ 125℃
Product Lifecycle Status	Active
Packaging	Tube
RoHS	RoHS Compliant
Lead-Free Status	Contains Lead
REACH SVHC Compliance	No SVHC
REACH SVHC Compliance Edition	2015/12/17
ECCN Code	EAR99

TT in advance (bank transfer), Western Union, Credit card,
PayPal. Customer is responsible for shipping fee, bank
charges, duties and taxes.
- You can choose whether shipping charges will be charged through your shipping account or by us.
- Please confirm with the logistics company in advance for remote areas.
(Additional charges ($35-$50) may apply for delivery in these areas)
- Delivery date: usually 2 to 7 working days.
- A tracking number will be sent after your order ships.
- Carefully inspected and packed by ManyChip warehouse
- Vacuum packaging
- Anti-static packaging
- Shockproof foam
The terms here are for reference only, the actual terms are subject to the sales quotation.
- Please confirm product specifications when ordering.
- MOQ refers to the minimum order quantity required to purchase each part.
- If you have special ordering instructions, please indicate them on the ordering page.
- Inspection (PSI) will be performed prior to shipment.
- Income Quality Control (IQC), 1000+ qualified dealers.
- Chips are tested by authoritative organizations to ensure the quality, authenticity and safety of your device.
- Decapsulation control
- X-ray control
- XRF inspection
- Electrical testing
- Surface testing
-Digital components warehouse, covering an area of 800 square meters, with constant temperature and humidity

If you have any problem,please email to sales@manychip.com, we will response as soon as possisble.

SN:H2.92252LO3845V61Q0QC0S0

Please fill the information below to send RFQ quickly,and we will respond immediately.