L4990 Datasheet, Controller, STMicroelectronics

L4990 Features

• Controller as programmable soft start, IN/OUT synchronization, disable (to be used for over voltage protection and for power management), precise maximum Duty Cycle Control, 100ns (typ) leading ed

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Part number:

L4990

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STMicroelectronics ↗

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322.28kb

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📄 Datasheet

Description:

Primary controller. This primary controller I.C., developed in BCD60II technology, has been designed to implement off BLOCK DIAGRAM SYNC 1 RCT 2 TIMING 2

L4990 Application

• Applications using a fixed frequency current mode control. Based on a standard current mode PWM controller this device includes some features as pro

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L4990

STMicroelectronics

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