UC2842B/3B/4B/5B
®
UC3842B/3B/4B/5B
HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER
.
TRIMMED OSCILLATOR FOR PRECISE FREQUENCY CONTROL
.
OSCILLATOR FREQUENCY GUARANTEED AT 250kHz
.
CURRENT MODE OPERATION TO 500kHz .
AUTOMATIC FEED FORWARD COMPENSA-
TION
.
LATCHING PWM FOR CYCLE-BY-CYCLE CURRENT LIMITING
.
INTERNALLY TRIMMED REFERENCE WITH UNDER
VOLTAGE LOCKOUT
.
HIGH CURRENT TOTEM POLE OUTPUT .
UNDER
VOLTAGE LOCKOUT WITH HYSTER-
ESIS
.
LOW START-UP AND OPERATING CURRENT
Minidip
SO8
comparatorwhich alsoprovidescurrent limit control, and a totem pole output stage designed to source or sink high peakcurrent.
The outputstage, suitable for driving N-Channel
MOSFETs, is low in the offstate.
DES...