BD555BKFV Datasheet, PDF (1/13 Pages) Rohm – BD555BKFV AC/DC Controller IC for mains dimmable LED lighting

BD555BKFV
Datasheet
BD555BKFV AC/DC Controller IC
for mains dimmable LED lighting
BD555BKFV
●General Description
The BD555BKFV controller AC/DC controller IC can be
used in a wide range of dimmable LED lighting driver
applications. The main target application is dimmable
retro-fit LED lighting, replacing existing incandescent
light bulbs, halogen spot lights, CFL tubes etc.
●Features
Fixed frequency DC/DC controller (selectable)
Peak current or average current control (PCC/ACC)
Dynamic Load Current Controller (DLCC)
Logarithmic compensation of detected dimming level
Dimmer detector function
Anti-flash function when dimmer is OFF
PWM and analog dimming control supported
Over Current Protection (OCP)
Thermal Shutdown protection (TSD)
Under Voltage Lock Out (UVLO)
●Key Specifications
Input voltage range........................................16~39V
Regulated supply voltage.................................11.5V
Fixed DC/DC operating frequency.........40~400kHz
Detectable phase-cut range........................45°~135°
Typical current consumption.............................1mA
Under Voltage Lock Out detection.....................9.0V
Operating temperature range.................-40~+110°C
●Package
SSOP-B14
W(Typ.) x D(Typ.) x H(Max.)
5.00mm x 6.40mm x 1.15mm
●Applications
Retro-fit dimmable LED lighting (E27, E14, GU10, T8
etc.). Wide range of TRIAC and transistor dimmers
supported by DLCC function.
Custom LED lighting with PWM or voltage controlled
dimming.
●Typical Application Circuits
Figure 1. Typical application circuit for
non-isolated dimmable buck topology
○Product structure：Silicon monolithic integrated circuit ○This product is not designed protection against radioactive rays
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TSZ02201-0W1W0C300010-1-2
03.Aug.2012 Rev.001