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User manual Rev. 1 — 19 April 2012 5 of 21
NXP Semiconductors
UM10525
120 V 20 W CFL demo board using the UBA2212
3. Specifications
Table 1. Demo board specification
Parameter State Value Comment
AC line input voltage - 96 V (AC) to 144 V (AC) board optimized for 120 V (AC), 60 Hz.
Lamp voltage (V
lamp
) steady 100 V measured at 120 V (AC) mains; GE T3 Spiral 20 W
burner used;
Table 2 on page 10
Lamp current (I
lamp
) 170 mA
Operating frequency
(f
osc
)
45 kHz
Power Factor >0.58
Preheat current (I
ph
) preheat 150 mA constant preheat current at 96 V (AC) to 144 V (AC);
Table 2 on page 10
Preheat time (t
ph
) 0.8 s
Lamp current (I
lamp
) boost 255 mA measured at 120 V (AC) mains; see Figure 5 on page 8
and Table 2 on page 10
boost time (t
bst
) 40 s
transition time from boost
to burn (t
t(bst-burn)
)
2 s
Fig 2. Photographs of a 20 W CFL Application with a UBA2212