Datasheet4U Logo Datasheet4U.com

LT1509 - Power Factor and PWM Controller

This page provides the datasheet information for the LT1509, a member of the LT1 Power Factor and PWM Controller family.

Datasheet Summary

Description

The LT ® 1509 is a complete solution for universal off-line switching power supplies utilizing active power factor correction.

The PFC section is identical to the LT1248 PFC controller except the EN/SYNC pin is removed because PFC and PWM are synchronized internally.

Features

  • s s s s s s s s s s s s.

📥 Download Datasheet

Datasheet preview – LT1509

Datasheet Details

Part number LT1509
Manufacturer Linear Technology
File Size 348.30 KB
Description Power Factor and PWM Controller
Datasheet download datasheet LT1509 Datasheet
Additional preview pages of the LT1509 datasheet.

📁 Similar Datasheet

  • LT1501G - 1.5A GLASS PASSIVATED RECTIFIER (Diodes Incorporated)
  • LT1502G - 1.5A GLASS PASSIVATED RECTIFIER (Diodes Incorporated)
  • LT1503G - 1.5A GLASS PASSIVATED RECTIFIER (Diodes Incorporated)
  • LT1504G - 1.5A GLASS PASSIVATED RECTIFIER (Diodes Incorporated)
  • LT1505G - 1.5A GLASS PASSIVATED RECTIFIER (Diodes Incorporated)
  • LT1506G - 1.5A GLASS PASSIVATED RECTIFIER (Diodes Incorporated)
  • LT1507G - 1.5A GLASS PASSIVATED RECTIFIER (Diodes Incorporated)
  • LT150X1-151 - TFT LCD (Samsung)
  • LT150X3-124 - TFT LCD (Samsung)
  • LT1540M - Dot Matrix LED Unit for Outdoor Use (Lamp Type) (Sharp Electrionic Components)
Other Datasheets by Linear Technology
  • LT1500 - Adaptive-Frequency Current Mode Switching Regulators
  • LT1501 - Adaptive-Frequency Current Mode Switching Regulators
  • LT1505 - Constant-Current/Voltage High Efficiency Battery Charger
  • LT1506 - 4.5A/ 500kHz Step-Down Switching Regulator
  • LT1507 - 500kHz Monolithic Buck Mode Switching Regulator
  • LT1508 - Power Factor and PWM Controller(Voltage Mode)
  • LT150A - 3 Amp Positive Adjustable Regulator
  • LT1510 - Constant-Voltage/ Constant-Current Battery Charger

Full PDF Text Transcription

Click to expand full text
LT1509 Power Factor and PWM Controller FEATURES s s s s s s s s s s s s DESCRIPTION The LT ® 1509 is a complete solution for universal off-line switching power supplies utilizing active power factor correction. The PFC section is identical to the LT1248 PFC controller except the EN/SYNC pin is removed because PFC and PWM are synchronized internally. The current mode PWM section (the LT1508 is the voltage-mode counterpart) contains all the primary side functions to convert the PFC preregulated high voltage output to an isolated low voltage output. The PWM duty cycle is internally limited to 47% (maximum 50%) to prevent transformer saturation. PWM soft start begins when PFC output reaches the preset voltage.
Published: |