www.irf.com
?2011 International Rectifier
IRS2580DSPbF
COMBO8 PFC + HALF-BRIDGE BALLAST IC
Features
" PFC, ballast control and half-bridge driver in one IC
" Critical-conduction mode boost-type PFC
" Internal VBUS sensing and regulation
" Internal PFC loop compensation
" Programmable PFC over-current
" Ignition voltage regulation (current or voltage control)
" Half-bridge non-ZVS protection
" Half-bridge over-current protection using low-side MOSFET Rds on
" Programmable preheat time
" Programmable preheat frequency
" Programmable ignition ramp time
" Programmable run frequency
" Voltage-controlled oscillator (VCO) analog input
" Latched EOL window comparator on VCC
" Internal EOL fault timer
" Fixed dead-time (1.7usec typ.)
" DC bus under-voltage reset
" Lamp insert auto-restart
" Micro-power start-up current
" Under-voltage lock-out mode
" Small 8-pin SOIC package
" Lead-free
Typical Application
" Electronic Ballast
Product Summary
Topology
Boost + Half-Bridge
V
OFFSET
600 V
V
OUT
VCC
I
O+
& I
O-
(typical)
180 mA & 260 mA
Dead-time
1.7us
Package Options
Typical Application Block Diagram
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