LT LT8311HFE#PBF

次级侧控制器3.7V ~ 30V4.5 mA

Overview

The LT8311EFE#PBF is used on the secondary side of a forward converter to provide synchronous MOSFET control and output voltage feedback through an opto-coupler. The LT8311’s unique preactive mode allows control of the secondary-side MOSFETs without requiring a traditional pulse transformer for primary- to secondary-side communication. In preactive mode, the output inductor current operates in discontinuous conduction mode (DCM) at light load. If forced continuous mode (FCM) operation is desired at light load, the LT8311EFE#PBF can, alternatively, be used in SYNC mode, where a pulse transformer is required to send synchronous control signals from the primary-side IC to the LT8311.

The LT8311EFE#PBF offers a full featured opto-coupler controller, incorporating a 1.5% reference, a transconductance error amplifier and a 10mA opto-driver. Power good monitoring and output soft-start/overshoot control are also included. The LT8311EFE#PBF is available in a 16-lead FE package with pins removed for high voltage spacing requirements.

Features

Tube Package
20-TSSOP (0.173, 4.40mm Width), 16 Leads, Exposed Pad package
Mounting type of Surface Mount
Input voltage of 12V

Surface Mount Mounting Type

Applications

There are a lot of Linear Technology/Analog Devices
LT8311HFE#PBF Power Supply Control ICs applications.

• Film engineering
• Video conference system
• Large conference system engineering
• Screen lift
• Monogram lift
• Projector electric hanger lift
• Multimedia classroom
• Multi-purposed meeting room
• Command and control center
• Smart home