Philips Semiconductors
600 V CCFL ballast driver IC
Product specification
UBA2070
SYMBOL
PARAMETER
CONDITION
Voltage controlled oscillator
tstart
fbridge(max)
fbridge(min)
∆fstab
tno(min)
first output oscillator stroke
maximum bridge frequency
minimum bridge frequency
frequency stability
minimum non-overlap time
after start-up state only
Tamb = −20 to +80 °C
GH to GL
GL to GH
tno(max)
maximum non-overlap time
at fbridge = 40 kHz; note 1
PIN CSW
Vi
Vclamp
input voltage
clamp voltage
burn state
PIN CF
Istart
start current
VCF = 1.5 V
Imin
minimum current
VCF = 1.5 V
Imax
maximum current
VCF = 1.5 V
VOH
HIGH-level output voltage
f = fmin
Output drivers
Vboot
VFVDD
IFVDD
bootstrap diode forward drop
lockout voltage on pin FVDD
floating well supply current on
pin FVDD
I = 5 mA
DC level at
VGH − VSH = 13 V
PINS GH AND GL
Isource
Isink
VOH
VOL
source current
sink current
HIGH-level output voltage
LOW-level output voltage
VGH − VSH = 0; VGL = 0
VGH − VSH = 13 V;
VGL = 13 V
Io = 10 mA
Io = 10 mA
HIGH SIDE AND LOW SIDE
Ron
on resistance
Roff
off resistance
Io = 10 mA
Io = 10 mA
Adaptive non-overlap timing and capacitive mode detection (pin ACM)
Ii
input current
VACM = 1.25 V
Vdet
capacitive mode detection voltage positive
negative
MIN. TYP.
−
50
90 100
38.9 40.5
−
1.3
0.68 0.90
0.75 1
−
6.7
2.7 3
2.8 3.1
3.8 4.5
−
21
−
54
−
2.5
1.3 1.7
2.8 3.5
−
35
135 180
265 300
12.5 −
−
−
32 39
16 21
−
−
80 100
−68 −85
MAX. UNIT
−
µs
110 kHz
42.1 kHz
−
%
1.13 µs
1.25 µs
−
µs
3.3 V
3.4 V
5.2 µA
−
µA
−
µA
−
V
2.1 V
4.2 V
−
µA
235 mA
415 mA
−
V
0.5 V
45 Ω
26 Ω
1
µA
120 mV
−102 mV
2002 Oct 24
11