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L4981AD013TR +BOM

Power Factor Correction and PWM Controller 0.3mA 115kHz 20-Pin SO T/R

Manufacturer:

STMicroelectronics, Inc
Mfr.Part #:

L4981AD013TR
Datasheet:

L4981AD013TR Datasheet (PDF)
Switching Frequency:

115 kHz
Minimum Operating Temperature:

- 40 C
Maximum Operating Temperature:

+ 125 C
Mounting Style:

SMD/SMT
EDA/CAD Models:

Request Free CAD Models for L4981AD013TR

L4981AD013TR General Description

The L4981 I.C. 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 anyline switch. This new PFC offers the possibility to work at fixed frequency (L4981A) or modulated frequency (L4981B) optimizing the size of the input filter; both the operating frequency modes 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. The overcurrent level can be programmed using simple resistor for L4981A. For a better precision and for L4981B an external divider must be used.

Key Features

PRECISE 2% ON CHIP REFERENCE EXTERNALLY AVAILABLE
OVERVOLTAGE, OVERCURRENT PROTECTION
SOFT START
LOW START-UP CURRENT (0.3mA TYP.)
HIGH CURRENT BIPOLAR AND DMOS TOTEM POLE OUTPUT
CONTROL BOOST PWM UP TO 0.99P.F.
UNIVERSAL INPUT MAINS
LIMIT LINE CURRENT DISTORTION TO < 5%
AVERAGE CURRENT MODE PWM FOR MINIMUM NOISE SENSITIVITY
UNDER VOLTAGE LOCKOUT WITH HYSTERESIS AND PROGRAMMABLE TURN ON THRESHOLD
FEED FORWARD LINE AND LOAD REGULATION

Specifications

Product Category:	Power Factor Correction - PFC	Switching Frequency:	115 kHz
Minimum Operating Temperature:	- 40 C	Maximum Operating Temperature:	+ 125 C
Mounting Style:	SMD/SMT	Packaging:	Reel
Height:	2.35 mm	Length:	13 mm
Series:	L4981	Type:	Power Factor Corrector
Width:	7.6 mm	Moisture Sensitive:	Yes
Product Type:	PFC - Power Factor Correction	Factory Pack Quantity:	1000
Subcategory:	PMIC - Power Management ICs	Unit Weight:	0.009408 oz
Tags	L4981AD013T, L4981AD0, L4981AD, L4981A, L4981, L498, L49