UPC1909 Datasheet, PDF (1/16 Pages) NEC – SWITCHING REGULATOR CONTROL IC

DATA SHEET
Bipolar Analog Integrated Circuit
µPC1909
SWITCHING REGULATOR CONTROL IC
The µPC1909 is a switching regulator control IC ideal for primary side control of active-clamp type^Note DC/DC
converters. This IC has 2 outputs employing a totem-pole circuit with peak output current 1.2 A, and is capable of
directly driving a power MOS-FET. As a result, it has been possible to realize primary side control of an active-clamp
type converter on a single chip.
Note It is necessary to obtain license from Vicor Corporation before using the µPC1909 in an active-clamp type
circuit.
FEATURES
• 2 on-chip outputs; for Q and Q
• Capable of directly driving a power MOS-FET
• Drive supply voltage range: 7 V to 24 V
• On-chip remote control circuit
• On-chip pulse-by-pulse overcurrent protection circuit
• On-chip overvoltage latch circuit
ORDERING INFORMATION
Part Number
µPC1909CX
µPC1909GS
Package
16-pin plastic DIP (300 mils)
16-pin plastic SOP (300 mils)
The information in this document is subject to change without notice. Before using this document, please
confirm that this is the latest version.
Not all devices/types available in every country. Please check with local NEC representative for
availability and additional information.
Document No. G14309EJ1V0DS00 (1st edition)
Date Published July 1999 N CP(K)
Printed in Japan
©
1999