uba20270 NXP Semiconductors, uba20270 Datasheet - Page 21

• Manufacturer Part Number: uba20270
• Description: 600 V Driver Ic For Dimmable Compact Fluorescent Lamps
• Manufacturer: NXP Semiconductors

NXP Semiconductors
Table 5.
V
positive currents flow into the IC, unless otherwise specified.
UBA20270
Product data sheet
Symbol
V
V
T
T
I
t
Pin CSI
N
Coil saturation protection and overcurrent detection
Input: pin SLS
V
V
t
Output: pin CI
I
Output: pin CF
I
Ignition current detection
Input: pin CSI
V
t
det(dis)bst
t(bst-burn)
leb
o(sink)CI
w(det)ign(min)
DD
j(bp)bst
j(end)bst
th(CB)max
hys(CB)
th(sat)SLS
th(ocp)SLS
th(det)ign(CSI)
LCBR
o(sat)CF
= 13 V; V
Characteristics
FS
Parameter
maximum threshold
voltage on pin CB
hysteresis voltage on
pin CB
boost bypass junction
temperature
boost end junction
temperature
boost disable detection
current
transition time from
boost to burn
lamp current boost ratio V
saturation threshold
voltage on pin SLS
overcurrent protection
threshold voltage on
pin SLS
leading edge blanking
time
sink output current on
pin CI
saturation output
current difference on
pin CF
ignition detection
threshold voltage on
pin CSI
minimum ignition
detection pulse width
- V
HBO
= 13 V; T
…continued
amb
= 25
Conditions
T
T
V
C
V
V
ignition state
boost state and burn state
detection disabled first part
of GLS time
V
V
clocked
V
low-side switch = on
V
square pulse

All information provided in this document is subject to legal disclaimers.
C; settings according to default setting in
j
j
CB
CSI
CSI
DCI
CI
i(SLS)
CF
th(det)ign(CSI)
CP
sensed at end ignition time
during boost time
= 2.0 V; ignition state;
= 1.5 V; ignition state;
= 0 V
= 470 nF; T
in boost state versus
in burn state;
= 1.34 V
> V
Rev. 2 — 8 September 2011
th(sat)SLS
= 0.75 V
600 V Driver IC for dimmable compact fluorescent lamps
j
< 80 C
; cycle
Min
-
2.3
65
105
30
-
1.4
2.3
2.3
-
26
-
0.55
685
Table
6, all voltages referenced to GND,
Typ
3.6
2.5
80
120
25
3.6
1.5
2.5
2.5
800
29
160
0.60
885
UBA20270
Max
-
2.7
95
135
20
-
1.6
2.7
2.7
-
32
-
0.65
1085
© NXP B.V. 2011. All rights reserved.
Unit
V
V
C
C
A
s
V
V
ns
A
A
V
ns
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