Datasheet4U Logo Datasheet4U.com

LR745

High Input Voltage SMPS Start-up

LR745 Features

* Accepts inputs from 35V to 450V

* Output current limiting

* For PWM ICs with start-up threshold voltage of 13.9 - 18.0V

* Very low power consumption after start-up Applications

* Notebook and laptop computers

* Telecommunication power supplies

* Battery chargers

* M

LR745 General Description

The Supertex LR745 is a high input voltage SMPS startup circuit. The LR745 is ideally suited for use with industry standard low voltage PWM ICs having start thresholds of 13.9 - 18.0V. It allows the PWM ICs to be operated from rectified 120 or 240VAC lines, and eliminates the use of power resistors o.

LR745 Datasheet (433.89 KB)

Preview of LR745 PDF

Datasheet Details

Part number:

LR745

Manufacturer:

Supertex Inc

File Size:

433.89 KB

Description:

High input voltage smps start-up.

📁 Related Datasheet

LR745 High-Input Voltage SMPS Start-up (Microchip)

LR72A metal plate current sense resistors (KOA)

LR72B metal plate current sense resistors (KOA)

LR72C metal plate current sense resistors (KOA)

LR72Z Pressure regulator (IMI)

LR736 Alkaline manganese button batteries (ETC)

LR770D Lamp LEDs (Seoul Semiconductor)

LR7800 3-Terminal 1A Positive Voltage Regulators (LRC)

LR7805 3-Terminal 1A Positive Voltage Regulators (LRC)

LR7806 3-Terminal 1A Positive Voltage Regulators (LRC)

TAGS

LR745 High Input Voltage SMPS Start-up Supertex Inc

Image Gallery

LR745 Datasheet Preview Page 2 LR745 Datasheet Preview Page 3

LR745 Distributor