WS21351
Half-bridge power IC for CFL lamps
FEATURES
■
Integrated 600V half-bridge gate driver
■
Lower power level-shifting circuit
■
Adjustable oscillator frequency and preheat time
■
Maximum voltage of 600 V
■
Internal clamping zener diode
■
Soft start functionality
Product Summary
V
OFFSET
Duty Cycle
T
r
/T
p
600V Max.
50%
80/40ns
15.6V typ.
2μs
V
clamp
Deadtime (typ.)
GERNERAL DESCRIPTION
The WS21351 is a high-voltage monolithic
integrated circuit which is designed for driving
Compact Fluorescent Lamps (CFL) in a half-bridge
configuration.WS21351 features a soft start function,
an adjustable oscillator and an internal drive function
with a high-voltage level shifter for driving the half
bridge.
Packages
8 Lead PDIP
TYPICAL APPLICATION
Rev. A Mar.2010
T11-1
WINSEMI [ SHENZHEN WINSEMI MICROELECTRONICS CO., LTD ]
