General Description
The LD7835D is a floating switch buck solution with Active
PFC (APFC) control for LED lighting. It is easy to design
with minimum cost and PCB size. The device operates in
transition mode (TM) and integrates with complete safety
requirement protections.
With power factor correction and TM control, the system is
enabled to achieve high PF and high efficiency and to
meet most of the international standard.
The LD7835 also features LED open protection (ZCD
OVP), LED short protection, over current protection (OCP),
and over temperature protection (OTP). It makes the
circuit designers easily to meet most of the safety
requirements in either normal or abnormal test.

Features
 High Power Factor Controller Integrated
 High Efficiency Transition Mode Operation
 Good Accurate Current Regulation
 Current Ripple Reduction (CRR) Function
 Wide Range of UVLO
 Built in OVP on VCC pin
 LED Open Protection
 LED Short Protection
 OCP (Cycle by cycle current limit)
 OTP (Over Temperature Protection)
 250mA/-250mA Driving Capability

Applications
 LED Lamp、LED bulb Application