UC284XA UC384XA
HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER
NOT FOR NEW DESIGN
1 FEATURES
Figure 1.
Package
■ TRIMMED OSCILLATOR DISCHARGE
CURRENT
■ CURRENT MODE OPERATION TO 500kHz
AUTOMATIC FEED FORWARD COMPENSATION
DIP-8
SO-8
■ LATCHING PWM FOR CYCLE-BY-CYCLE CURRENT LIMITING
Table 1.
Order Codes
■ INTERNALLY TRIMMED REFERENCE WITH
Part Number
Package
UNDER
VOLTAGE LOCKOUT ■ HIGH CURRENT TOTEM POLE OUTPUT
t(s)UNDER
VOLTAGE LOCKOUT WITH
HYSTERESIS
c■ LOW START-UP CURRENT ( 0.
5mA) uDOUBLE PULSE SUPPRESSION rod2 DESCRIPTION PThe UC384xA family of control ICs provides the
necessary features to implement off-line or DC to
teDC fixed frequency current mode control schemes lewith...