IC-Hersteller Analog Devices

IC-Hersteller (95)

Analog Devices LT3798

Details

TopologieSperrwandler
IC-RevisionA

Beschreibung

The LT®3798 is a constant-voltage/constant-current isolatedflyback controller that combines active power factorcorrection (PFC) with no opto-coupler required for outputvoltage feedback into a single-stage converter. A LT3798based design can achieve a power factor of greater than 0.97by actively modulating the input current, allowing compliancewith most Harmonic Current Emission requirements.The LT3798 is well suited for a wide variety of off-lineapplications. The input range can be scaled up or down,depending mainly on the choice of external components.Efficiencies higher than 86% can be achieved with outputpower levels up to 100W. In addition, the LT3798 can easilybe designed into high DC input applications.

Eigenschaften

  • Isolated PFC Flyback with Minimum Number ofExternal Components
  • VIN and VOUT Limited Only by External Components
  • Active Power Factor Correction
  • Low Harmonic Distortion
  • No Opto-Coupler Required
  • Constant-Current and Constant-Voltage Regulation
  • Accurate Regulated Voltage and Current (±5% Typical)
  • Energy Star Compliant (<0.5W No Load Operation)
  • Thermally Enhanced 16-lead MSOP Package

Weiterführende Informationen

Artikeldaten

Artikel Nr. Daten­blatt Simu­lation Downloads ProduktserieVin
(V)
VOut1
(V)
IOut1
(A)
Vaux
(V)
fswitch
(kHz)
L
(µH)
NPRI : NSEC : NAUXISAT
(A)
VT
(V (AC))
L
(mm)
W
(mm)
H
(mm)
MontageartBauform Muster
750312872SPEC
5 Dateien Transformer 20 - 60 28 4 24 50 14 1:1:0.8 25.9 1500 39.6 43.18 30.84 THT ETD34
750813002SPEC
4 Dateien MID-OLLT Offline Flyback Transformers for Linear Technology 85 - 265 V (AC) 3.4 1 17 100 2000 20:1:5 0.35 4500 15 15.75 18.5 THT EE13/6/6
7508110210SPEC
4 Dateien MID-OLLT Offline Flyback Transformers for Linear Technology 85 - 135 V (AC) 11 0.35 15 100 2000 6.67:1:1.67 0.27 4500 15 15.75 18.5 THT EE13/6/6
750813134SPEC
4 Dateien MID-OLLT Offline Flyback Transformers for Linear Technology 85 - 265 V (AC) 14 1 18 100 600 8:1:1.28 1.75 4500 18 16.5 18 THT EE16/7/5
750813144SPEC
4 Dateien MID-OLLT Offline Flyback Transformers for Linear Technology 85 - 265 V (AC) 28 0.5 20 100 600 4:1:0.71 1.75 4500 18.5 16.5 18.8 THT EE16/7/5
750811248SPEC
5 Dateien MID-OLLT Offline Flyback Transformers for Linear Technology 85 - 265 V (AC) 24 2 24 60 - 400 300 4:1:1 3.5 4500 31 31 25 THT ER28/14
750811290SPEC
5 Dateien MID-OLLT Offline Flyback Transformers for Linear Technology 85 - 265 V (AC) 125 0.36 21.25 150 461 1:1:0.17 3.15 4500 31 31 25 THT ER28/14
750811291SPEC
5 Dateien MID-OLLT Offline Flyback Transformers for Linear Technology 85 - 265 V (AC) 85 0.4 20 60 400 1:1:0.24 5.7 4500 31 31 25 THT ER28/14
750811330SPEC
5 Dateien MID-OLLT Offline Flyback Transformers for Linear Technology 85 - 265 V (AC) 18 5 18 200 300 6:1:1 4 4500 39.6 43.18 30.48 THT ETD34
750813390SPEC
5 Dateien MID-OLLT Offline Flyback Transformers for Linear Technology 85 - 265 V (AC) 90 1 19.8 100 180 1:1:0.22 9 4500 39.6 43.18 30.48 THT ETD34
Muster
Artikel Nr. Daten­blatt Simu­lation Downloads ProduktserieVin
(V)
VOut1
(V)
IOut1
(A)
Vaux
(V)
fswitch
(kHz)
L
(µH)
NPRI : NSEC : NAUXISAT
(A)
VT
(V (AC))
L
(mm)
W
(mm)
H
(mm)
MontageartBauform Muster