STMicroelectronics L4981A

Name: L4981A
Brand: STMicroelectronics
SKU: 3262763-L4981A
Availability: InStock
Rating: 5 (1 reviews)

Part Number:: L4981A

Manufacturer:: STMicroelectronics

Ventron No:: 3262763-L4981A

Description:: IC PFC CTRLR AVERAGE CURR 20DIP

ECAD Model:

Datasheet:: L4981A

Overview

Description
The L4981 is a power factor corrector (PFC) pre-regulator that provides the necessary features to achieve a high power factor of up to 0.99. It is realized in BCD 6011 technology and contains all the control functions for designing a high-efficiency 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. It offers the possibility to work at fixed frequency (L4981A) or modulated frequency (L4981B), optimizing the size of the input filter.

Features
Control boost PWM up to 0.99 P.F.
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
Low start-up current (0.3mA typ.)
Undervoltage lockout with hysteresis and programmable turn-on threshold
Overvoltage, overcurrent protection
Precise 2% on-chip reference externally available
Soft start

Applications
High-efficiency power supplies
Power factor correction
Industrial applications
Consumer electronics

Specifications

STMicroelectronics L4981A technical specifications, attributes, parameters and parts with similar specifications to STMicroelectronics L4981A.

Mount
Through Hole
Mounting Type
Through Hole
Package / Case
20-DIP (0.300, 7.62mm)
Number of Pins
20
Weight
2.259996g
Operating Temperature
-40°C~125°C
Packaging
Tube
JESD-609 Code
e3
Part Status
Obsolete
Moisture Sensitivity Level (MSL)
1 (Unlimited)
Number of Terminations
20
ECCN Code
EAR99
Terminal Finish
Matte Tin (Sn)
Subcategory
Switching Regulator or Controllers
Max Power Dissipation
1W
Technology
BCDMOS
Voltage - Supply
14.5V~19.5V
Terminal Position
DUAL
Number of Functions
1
Terminal Pitch
2.54mm
Frequency
115kHz
Base Part Number
L4981
Pin Count
20
Number of Outputs
1
Output Voltage
7.5V
Input Voltage-Nom
18V
Analog IC - Other Type
POWER FACTOR CONTROLLER
Operating Supply Current
12mA
Nominal Supply Current
12mA
Max Supply Current
16mA
Output Current-Max
2A
Frequency - Switching
100kHz
Control Technique
PULSE WIDTH MODULATION
Switcher Configuration
SINGLE
Mode
Average Current
Ambient Temperature Range High
125°C
Current - Startup
100μA
Height
3.93mm
Length
25.4mm
Width
7.1mm
Radiation Hardening
No
REACH SVHC
No SVHC
RoHS Status
Non-RoHS Compliant
Lead Free
Lead Free

Certification

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L4981A Specification

Part Number	Manufacturers	Description	Stock	Price
L4981AD013TR DISTI #	STMicroelectronics	Power Factor Correction PWM CONTRLR 0.3mA 115KHz 2 RoHS: Compliant	2171	1 $2.758 10 $2.421 25 $2.4129 100 $2.117 250 $1.995 500 $1.829 1000 $1.515
L4981AD DISTI #	STMicroelectronics	Power Factor Correction PWM CONTRLR 0.3mA 115KHz 2 RoHS: Compliant	368	1000 $1.705 2000 $1.6259 5000 $1.567
L4981AD013TR DISTI #	STMicroelectronics	Power Factor Correction PWM CONTRLR 0.3mA 115KHz 2 RoHS: Compliant	262	1 $2.758 10 $2.421 25 $2.4129 100 $2.117 250 $1.896
L4981AD DISTI #	STMicroelectronics	Power Factor Correction PWM CONTRLR 0.3mA 115KHz 2 RoHS: Compliant	154	1000 $1.705 2000 $1.6259 5000 $1.567
L4981AD013TR DISTI #	STMicroelectronics	IC PFC CTRLR AVERAGE CURR 20SOIC RoHS: Compliant	986	1 $3.34 10 $2.996 100 $2.4544 500 $2.08938
L4981AD013TR DISTI #	STMicroelectronics	IC PFC CTRLR AVERAGE CURR 20SOIC RoHS: Compliant	986	1 $3.34 10 $2.996 100 $2.4544 500 $2.08938
L4981AD DISTI #	STMicroelectronics	IC PFC CTRLR AVERAGE CURR 20SOIC RoHS: Not Compliant	540	1 $3.24 40 $2.7495 120 $2.38292 520 $2.02852 1000 $1.7108
L4981A DISTI #	STMicroelectronics	IC PFC CTRLR AVERAGE CURR 20DIP RoHS: Not Compliant	0
E-L4981A DISTI #	STMicroelectronics	IC PWR FACTOR CORRECTOR 20-DIP RoHS: Compliant	0
E-L4981AD DISTI #	STMicroelectronics	IC PWR FACTOR CORRECTOR 20 SOIC RoHS: Compliant	0
L4981AD013TR DISTI #	STMicroelectronics	IC PFC CTRLR AVERAGE CURR 20SOIC RoHS: Compliant	0	1000 $1.7108 2000 $1.62526 5000 $1.56416
EVAL4981A DISTI #	STMicroelectronics	EVAL BOARD FOR L4981 RoHS: Compliant	0	13 $50
L4981AD013TR DISTI #	STMicroelectronics	Power Factor Correction PWM CONTRLR 0.3mA 115KHz 2 RoHS: Compliant	2171	5 $2.758 10 $2.421 25 $2.4129 100 $2.117 250 $1.995 500 $1.829 1000 $1.515
L4981AD DISTI #	STMicroelectronics	Power Factor Correction PWM CONTRLR 0.3mA 115KHz 2 RoHS: Compliant	565	10 $1.7952 300 $1.6453
L4981AD DISTI #	STMicroelectronics	Power Factor Correction PWM CONTRLR 0.3mA 115KHz 2 RoHS: Compliant	368	368 $1.705
L4981AD013TR DISTI #	STMicroelectronics	Power Factor Correction PWM CONTRLR 0.3mA 115KHz 2 RoHS: Compliant	262	5 $2.758 10 $2.421 25 $2.4129 100 $2.117 250 $1.896
L4981AD DISTI #	STMicroelectronics	Power Factor Correction PWM CONTRLR 0.3mA 115KHz 2 RoHS: Compliant	154	4 $1.705
L4981AD DISTI #	STMicroelectronics	Power Factor Correction PWM CONTRLR 0.3mA 115KHz 2 RoHS: Compliant	1715	40 $1.89 80 $1.89 160 $1.89 240 $1.69 400 $1.69
L4981AD013TR DISTI #	STMicroelectronics	Power Factor Correction PWM CONTRLR 0.3mA 115KHz 2 RoHS: Compliant	2000	1000 $1.4616 2000 $1.392 3000 $1.32873 5000 $1.27096 10000 $1.218 25000 $1.18508 50000 $1.15389
L4981AD013TR DISTI #	STMicroelectronics	Power Factor Correction PWM CONTRLR 0.3mA 115KHz 2 RoHS: Compliant	1000	1000 $1.98 2000 $1.64 3000 $1.47
L4981AD DISTI #	STMicroelectronics	Power Factor Correction PWM CONTRLR 0.3mA 115KHz 2 RoHS: Compliant	0	1000 $1.79 2000 $1.69 4000 $1.59 6000 $1.49 10000 $1.49
L4981AD DISTI #	STMicroelectronics	Power Factor Correction PWM CONTRLR 0.3mA 115KHz 2 RoHS: Compliant	0	1 $3.59353 10 $3.57345 25 $3.5536 50 $3.53397 100 $3.51455 250 $3.49534 500 $3.47635
EL4981AD DISTI #	STMicroelectronics	Power Factor Correction PWM CONTRLR 0.3mA 115KHz 2 RoHS: Compliant	0
EVAL4981A DISTI #	STMicroelectronics	Evaluation Board For L4981To Achieve A Very High P RoHS: Not Compliant	0	1 $46.99
L4981AD013TR DISTI #	STMicroelectronics	Power Factor Correction PWM CONTRLR 0.3mA 115KHz 2 RoHS: Compliant	0	1000 $1.79 2000 $1.69 4000 $1.59 6000 $1.49 10000 $1.49
L4981AD DISTI #	STMicroelectronics	POWER FACTOR CORRECTOR, 19.5V, SOIC-20, UVLO:-,	135	1 $3.24 10 $2.75 25 $2.63 50 $2.51 100 $2.39 250 $2.27 500 $2.03
L4981AD013TR DISTI #	STMicroelectronics	PFC CONTROLLER, 100KHZ, 19.5V, SOIC-20, UVLO:14.5	630	1 $3.24 10 $2.75 25 $2.63 50 $2.51 100 $2.39 250 $2.27 500 $2.03
L4981A DISTI #	STMicroelectronics	Power Factor Correction - PFC Very High Power RoHS: Compliant	0
E-L4981A DISTI #	STMicroelectronics	Power Factor Correction - PFC Very High Power RoHS: Compliant	0
L4981AD013TR DISTI #	STMicroelectronics	Power Factor Correction - PFC Very High Power RoHS: Compliant	2000	1 $3.24 10 $2.75 100 $2.39 250 $2.27 500 $2.03 1000 $1.72 2000 $1.63 5000 $1.57
L4981AD DISTI #	STMicroelectronics	Power Factor Correction - PFC Very High Power RoHS: Compliant	744	1 $3.24 10 $2.75 100 $2.39 250 $2.27 500 $2.03 1000 $1.72 2000 $1.63 5000 $1.57
EVAL4981A DISTI #	STMicroelectronics	Power Management IC Development Tools Eval Board L RoHS: Not Compliant	1	1 $50
E-L4981AD013TR DISTI #	STMicroelectronics	Power Factor Correction - PFC Very High Power RoHS: Compliant	0
E-L4981AD DISTI #	STMicroelectronics	Power Factor Correction - PFC Very High Power RoHS: Compliant	0
L4981AD DISTI #	STMicroelectronics	POWER FACTOR CORRECTION PWM 0.3MA 115KHZ, TU	1427	8 $2.29 20 $2.09
L4981AD DISTI #	STMicroelectronics	POWER FACTOR CORRECTION PWM 0.3MA 115KHZ, EA	230	1 $2.56 8 $2.29 20 $2.09
L4981A DISTI #	STMicroelectronics	POWER FACTOR CONTROLLER, 20 Pin, DIP	497	1 $5.82 70 $2.522 199 $2.328
L4981A DISTI #	STMicroelectronics	POWER FACTOR CONTROLLER, 20 Pin, DIP	4	1 $5.82 3 $3.88
L4981A DISTI #	STMicroelectronics	POWER FACTOR CONTROLLER, 20 Pin, DIP	6	1 $5.82 3 $4.85 6 $4.268
L4981A DISTI #	STMicroelectronics	POWER FACTOR CONTROLLER, 20 Pin, DIP	1	1 $5.82
L4981A DISTI #	STMicroelectronics	POWER FACTOR CONTROLLER, 20 Pin, DIP	3	1 $5.0904 3 $3.3936
L4981AD DISTI #	STMicroelectronics	POWER FACTOR CONTROLLER, 20 Pin, SOP	10	1 $5.55 3 $3.7 8 $2.775
L4981AD DISTI #		POWER FACTOR CONTROLLER, 20 Pin, SOP	3	1 $5.55 3 $3.7
L4981AD DISTI #	STMicroelectronics	POWER FACTOR CONTROLLER, 20 Pin, SOP	396	1 $5.55 73 $2.59 194 $2.405
L4981AD013TR DISTI #	STMicroelectronics	Driver, PFC controller, SMPS controller, 600mW,	996	1 $1.9 3 $1.71 10 $1.36 50 $1.19
L4981AD DISTI #	STMicroelectronics	Driver, PFC controller, SMPS controller, 600mW,	40	1 $3.67 3 $3.27 10 $2.64 40 $2.31
L4981AD DISTI #	STMicroelectronics	RoHS: Compliant	3981
L4981AD013TR DISTI #	STMicroelectronics	PFC SO-20 SMD RoHS: Compliant	11000	1000 $3.08 2000 $2.19
L4981A DISTI #	STMicroelectronics	DIP-20 RoHS: Compliant	1598	80 $8.57 1598 $8
L4981AD DISTI #	STMicroelectronics	RoHS: Compliant	886	240 $3.65 886 $3.35
L4981AD013TR DISTI #	STMicroelectronics	SO-20 RoHS: Compliant	1000	1000 $1.07
L4981AD013TR DISTI #	STMicroelectronics	PowerFactorController,Current-mode,2A,115kHzSwitch RoHS: Compliant	323713	1000 $2.13 323713 $2
L4981AD DISTI #	STMicroelectronics	RoHS: Compliant	13413	80 $2.28 13413 $2.14
L4981A DISTI #	STMicroelectronics	INSTOCK	82
L4981AD013TR DISTI #	STMicroelectronics	INSTOCK	6000
L4981AD DISTI #	STMicroelectronics	INSTOCK	2069
L4981AD013TR DISTI #	STMicroelectronics	PWM CONTRLR 0.3mA 115kHz 20-Pin SO T/R RoHS: Compliant	262	1 $2.758 10 $2.421 25 $2.4129 100 $2.117 250 $1.896
L4981AD013TR DISTI #	STMicroelectronics	PWM CONTRLR 0.3mA 115kHz 20-Pin SO T/R RoHS: Compliant	2171	1 $2.758 10 $2.421 25 $2.4129 100 $2.117 250 $1.995
L4981AD DISTI #	STMicroelectronics	Power Factor Correction PWM CONTRLR 0.3mA 115KHz 2 RoHS: Compliant	154	1000 $1.705
L4981AD DISTI #	STMicroelectronics	Power Factor Correction PWM CONTRLR 0.3mA 115KHz 2 RoHS: Compliant	565	1 $6.03 10 $3.91 50 $3.21 100 $2.95 500 $2.26
L4981AD013TR DISTI #	STMicroelectronics	PFC CONTROLLER, 100KHZ, 19.5V, SOIC-20 RoHS: Compliant	520	1 $2.82 10 $2.12 25 $2.03 50 $1.94 100 $1.85
L4981AD013TR DISTI #	STMicroelectronics	PFC CONTROLLER, 100KHZ, 19.5V, SOIC-20 RoHS: Compliant	630	1 $5.13 10 $4.35 100 $3.78 250 $3.6 500 $3.22 1000 $2.72 2000 $2.59 5000 $2.49

STMicroelectronics L4981A

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