UBA2021 NXP Semiconductors, UBA2021 Datasheet - Page 10

• Manufacturer Part Number: UBA2021
• Description: 630 V Driver Ic For Cfl And Tl Lamps
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Notes
1. The start-up supply current is specified in a temperature (T
2. The clamp margin is defined as the voltage difference between turn-on of the clamp and start of oscillation. The
3. Data sampling of V
4. The total supply current is specified in a temperature (T
5. Data sampling of V
6. Within the allowed range of R
7. Typical values for the on and off resistances at T
8. The input current at pin RHV may increase to 1600 A during voltage transient at V
9. The symmetry SYM
2002 Aug 02
R
R
R
V
Feed-forward
R
I
f
SYM
RR
R
R
i(RHV)
ff
drop
G1(off)
G2(on)
G2(off)
i(RHV)
CP(sw)
AV
630 V driver IC for CFL and TL lamps
SYMBOL
start-up supply current is <350 A.
clamp is in the off-state at start of oscillation.
total supply current is <1.5 mA.
R
approximately 550 A is the oscillator frequency proportional to I
turn-off of G1, and T2
G1(off)
ff
= 100 .
high side driver off resistance
low side driver on resistance
low side driver off resistance
voltage drop at bootstrap switch
input resistance at pin RHV
operating range of input current at
pin RHV
feed-forward frequency
symmetry
ripple rejection
CP switch series resistance
averaging resistor
RS(ctrl)
RS(cap)
ff
is calculated from the quotient SYM
tot
the time between turn-off of G1 and turn-off of G2.
PARAMETER
is performed at the end of conduction of T2.
is performed at the start of conduction of T2.
RREF
, defined as 30 k +10%.
vj
= 87.5 C are: R
V
V
V
I
note 8
I
I
I
f
I
I
FS
RHV
RHV
RHV
Vin
CP
CP
vj
10
(G1
G2
G2
) range of 20 to +125 C. For T
ff
= 5 mA
= 100 A
= 10 A
= 100 Hz
= 3 V; note 7
= 3 V; note 7
= T1
= 0.75 mA
= 1 mA
= 1 mA; note 9
vj
S1)
CONDITIONS
) range of 0 to 125 C. For T
tot
= 3 V; note 7
/T2
RHV
G2(on)
tot
.
, with T1
and R
tot
G1(on)
the time between turn-off of G2 and
60
100
60
0.6
1.54
0
60.4
80.3
0.9
0.75
22.4
in
MIN.
. Only for currents I
= 164 , R
vj
vj
< 20 and T
<0 and T
75
126
75
1.0
2.2
63.6
84.5
1.0
6
1.5
32
TYP.
Product specification
G2(off)
UBA2021
90
152
90
1.4
2.86
1000
66.15
88.2
1.1
2.25
41.6
vj
MAX.
vj
>125 C the
and
>125 C the
RHV
beyond
V
k
kHz
kHz
dB
k
k
UNIT
A