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SC4905B - HIGH PERFORMANCE VOLTAGE MODE PWM CONTROLLER

Download the SC4905B datasheet PDF. This datasheet also covers the SC4905A variant, as both devices belong to the same high performance voltage mode pwm controller family and are provided as variant models within a single manufacturer datasheet.

General Description

The SC4905A/B is a 10 pin BICMOS primary side voltage mode controller for use in Isolated DC-DC and off-line switching power supplies.

It is a highly integrated solution, requiring few external components.

Key Features

  • a high speed oscillator with integrated feed forward compensation, accurately programmable maximum duty cycle, voltage mode of operation, line voltage monitoring, supply UVLO, low start up current, low voltage current limit threshold and user accessible reference. www. DataSheet4U. com The SC4905A/B device operates at a fixed frequency, highly desirable for Telecom.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (SC4905A_SemtechCorporation.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number SC4905B
Manufacturer SEMTECH
File Size 389.29 KB
Description HIGH PERFORMANCE VOLTAGE MODE PWM CONTROLLER
Datasheet download datasheet SC4905B Datasheet

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Other Datasheets by SEMTECH

Part Number Description
SC4905A HIGH PERFORMANCE VOLTAGE MODE PWM CONTROLLER
SC4901 COMBI-SYNC Secondary Side Synchronous Rectifier and Regulator
SC4910A High Performance Secondary Side Controller
SC4910B High Performance Secondary Side Controller
SC4911 Bias/Primary Side PWM Controller

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
POWER MANAGEMENT Description The SC4905A/B is a 10 pin BICMOS primary side voltage mode controller for use in Isolated DC-DC and off-line switching power supplies. It is a highly integrated solution, requiring few external components. The device features a high speed oscillator with integrated feed forward compensation, accurately programmable maximum duty cycle, voltage mode of operation, line voltage monitoring, supply UVLO, low start up current, low voltage current limit threshold and user accessible reference. www.DataSheet4U.com The SC4905A/B device operates at a fixed frequency, highly desirable for Telecom applications. Features a separate SYNC pin which simplifies synchronization to an external clock.