L5991 - PRIMARY CONTROLLER

STMicroelectronics

The L5991 by STMicroelectronics is a PRIMARY CONTROLLER. Below is the official datasheet preview.

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L5991 PRIMARY CONTROLLER by STMicroelectronics - Datasheet Preview — Official preview page of the **L5991** PRIMARY CONTROLLER datasheet (STMicroelectronics).

Datasheet Details

Part number	L5991
Manufacturer	STMicroelectronics
File Size	410.86 KB
Description	PRIMARY CONTROLLER
Datasheet	L5991_STMicroelectronics.pdf
Additional preview pages of the L5991 datasheet.

L5991 Product details

Description

This primary controller I.C., developed in BCD60II technology, has been designed to implement off BLOCK DIAGRAM MULTIPOWER BCD TECHNOLOGY DIP16 SO16 ORDERING NUMBERS: L5991/L5991A (DIP16) L5991D/L5991AD (SO16) line or DC-DC power supply applications using a fixed frequency current mode control.Based on a standard current mode PWM controller this device includes some

Features

such 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 leading edge blanking on current sense, pulse by pulse current limit, overcurrent protection with soft start intervention, and Standby function for oscillator frequency reduction when the converter is lightly loaded. 2 RCT + 3 DC - 14 DIS - DIS + 2.5V ISEN SS OVER.

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Published: Mar 22, 2005 |