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L4990A - PRIMARY CONTROLLER

L4990A Product details

Description

This primary controller I.C., developed in BCD60II technology, has been designed to implement off.

Features

  • 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 edge blanking on current sense, pulse by pulse current limit and overcurrent protection with soft start intervention. VCC 8 VREF 4 3 DC 14 DIS 2.5V + + T DIS Vref + 16V/10V - PWM UVLO 9 VC 13V.

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