Datasheet Texas Instruments UCC28061DR — 数据表

UCC28061 UCC2 8060 www.ti.com . SLUS837A – JUNE 2008 – REVISED JULY 2009 Natural Interleaving™ Transition-Mode PFC Controller With Improved Audible Noise
Immunity
NATURAL INTERLEAVING FEATURES SYSTEM FEATURES Phase Management Capability FailSafe OVP with Dual Paths Prevents Output
Over-Voltage Conditions Caused by
Voltage-Sensing Failures Sensorless Current Shaping Simplifies Board
Layout and Improves Efficiency Inrush Safe Current Limiting:
– Prevents MOSFET conduction during
inrush
– Eliminates reverse recovery events in
output rectifiers 1 23 400 VDC
EMI
Filter – + VCC
85-265VAC ZCDA
GDA CS
VINAC ZCDB UCC28061
GDB
TSET
PWMCNTL
VSENSE
COMP
PHB Improved Audible Noise Performance
Soft Start on Overvoltage
Integrated Brownout …