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SC4910B - High Performance Secondary Side Controller

Download the SC4910B datasheet PDF. This datasheet also covers the SC4910A variant, as both devices belong to the same high performance secondary side controller family and are provided as variant models within a single manufacturer datasheet.

General Description

The SC4910A/B is an integrated, full featured, secondary side controller designed for use in single ended and isolated switch mode power supplies with synchronous rectification where efficiency and fast transient response are of primary concern.

Key Features

  • synchronous rectification, multiphase link capability, programmable secondary side delay, programmable switching frequency and programmable maximum duty cycle. It is designed for either current mode or voltage mode operation. The SC4910A has a typical turn-on threshold of 9V and the SC4910B has a threshold of 4.5V. SC4910A/B Features ‹ ‹ ‹ ‹ ‹ ‹ ‹ ‹ ‹ ‹ ‹ ‹ Synchronous rectification with adaptive control Programmable secondary side delay Programmable switching frequency Programmable max. duty.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (SC4910A_SemtechCorporation.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number SC4910B
Manufacturer SEMTECH
File Size 364.03 KB
Description High Performance Secondary Side Controller
Datasheet download datasheet SC4910B Datasheet

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Other Datasheets by SEMTECH

Part Number Description
SC4910A High Performance Secondary Side Controller
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SC4901 COMBI-SYNC Secondary Side Synchronous Rectifier and Regulator
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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
High Performance Secondary Side Controller with Synchronous Rectifier POWER MANAGEMENT Description The SC4910A/B is an integrated, full featured, secondary side controller designed for use in single ended and isolated switch mode power supplies with synchronous rectification where efficiency and fast transient response are of primary concern. The SC4910A/B has outputs for both primary FET and secondary synchronous rectification. The primary drive output is designed to drive a small and low cost pulse transformer to isolate the primary FET driver. The secondary control makes it much easier www.DataSheet4U.com to monitor and control the system load with tight control loops and implement load current sharing and synchronous rectification.