代理销售ON-BRIGHT/昂宝  LED驱动器系列

OB3332A/OB3332B系列大量现货

余先生  15920019042

OB3332APCPA-F
OB3332AMCPA-F
OB3332ARCPA-F
OB3332APCPA-J
OB3332ARCPA-J
OB3332AUCPA-F
OB3332ATCPA-J
OB3332BPCPA-J
OB3332BMCPA-H

GENERAL DESCRIPTION

OB3332Bx is a TRIAC dimmable high power factor,
highly integrated buck/buck-boost regulator with
advanced features to provide high efficiency
control and high precision constant current output
for dimmable LED lighting applications.
The proprietary CC control scheme is used to
provide features of insensitivity to inductance and
line voltage. Without external large compensation
capacitor, the system can achieve high power
factor with proprietary PFC control scheme.
OB3332Bx offers comprehensive protection
coverage with auto-recovery features including
LED open loop protection, LED short circuit
protection, cycle-by-cycle current limiting, built-in
leading edge blanking, VDD under voltage lockout
(UVLO), thermal foldback etc.
OB3332Bx is offered in SOP-8 package

FEATURES
 Excellent TRIAC dimming performance
 Low system cost and high efficiency
 High PF（PF>0.9）@90~132Vac input
 Support buck/buck-boost topology
 High precision constant current regulation at
universal AC input
 Quasi-Resonant operation
 Thermal foldback function for LED output
current control
 Insensitivity to inductance and line voltage
variation
 LED short circuit protection
 LED open loop protection
 Cycle-by-cycle current limiting
 Built-in leading edge blanking (LEB)
 VDD under voltage lockout with hysteresis
 Over temperature protection (OTP)
APPLICATIONS
 Dimmable LED lighting