Description
This primary controller I.C., developed in BCD60II technology, has been designed to implement off BLOCK DIAGRAM
SYNC 1 RCT 2 TIMING 25V DC-LIM 15
MULTIPOWER BCD TECHNOLOGY
DIP16
SO16W
ORDERING NUMBERS: L4990/L4990A(DIP16) L4990D/L4990AD (SO16W)
line or DC-DC power supply applications using a fi
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.
L4990A Datasheet
