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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
UNDERVOLTAGE LOCKOUT ■ HIGH CURRENT TOTEM POLE OUTPUT
t(s)UNDERVOLTAGE 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 a minimal external parts count.
UC2842A Datasheet
