uba20261 NXP Semiconductors, uba20261 Datasheet - Page 21

• Manufacturer Part Number: uba20261
• Description: 600 V And 350 V Power Ic For Step Dimmable Cfls
• Manufacturer: NXP Semiconductors

NXP Semiconductors
Table 5.
V
referenced to PGND and SGND, positive currents flow into the UBA20261/2, unless otherwise specified.
UBA20261_UBA20262
Preliminary data sheet
Symbol
Boost timer
Pin CB
t
I
V
V
V
T
T
I
t
Pin CSI
N
Coil saturation protection and overcurrent detection
Input: pin SLS
V
V
t
Input: pin LSAT:
I
V
Output pin CI
I
Output: pin CF:
I
Ignition current detection
Input pin CSI
V
t
bst
o(CB)
det(dis)bst
t(bst-burn)
leb
source(LSAT)
o(sink)CI
w(det)ign(min)
DD
j(bp)bst
j(end)bst
th(CB)min
th(CB)max
hys(CB)
th(sat)SLS
th(ocp)SLS
clamp(LSAT)
th(det)ign(CSI)
LCBR
o(sat)CF
= 13 V; V
Characteristics
FS

Parameter
boost time
output current on pin CB
minimum threshold voltage on pin
CB
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
saturation threshold voltage on pin
SLS
overcurrent protection threshold
voltage on pin SLS
leading edge blanking time
source current on pin LSAT
clamp voltage on pin LSAT
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
All information provided in this document is subject to legal disclaimers.

C; settings according to default setting (see
Rev. 1 — 9 September 2011
Conditions
C
V
T
T
V
C
burn state; default start-up state
(no dimming)
ignition state; R
ignition state; R
GLS time
V
R
V
clocked
V
LS switch = on
V
V
detection disabled for first part of
j
j
CB
CB
i(CSI)
LSAT
CI
CF
th(det)ign(CSI)
CB
CP
LSAT
sensed at end of ignition time
during boost time
= 2 V; V
= 2.35 V; source (); sink (+)
= 0 V
= 1.5 V; ignition state;
= 470 nF; T
= 470 nF; T
in boost state versus V
= 1.2 V
= ; C
600 V and 350 V power IC for step dimmable CFLs
i(SLS)
LSAT
= 0.75 V square pulse
LSAT
LSAT
j
j
> V
< 80 C
< 80 C
= 1 nF
= 47 k
= 47 k
th(sat)SLS
i(CSI)
; cycle
in
Table 6 on page
[3]
Min
-
-
-
65
105
30
-
1.4
1.10
1.10
-
26.3
2.3
26
-
0.55
685
0.8
2.3
UBA20261/2
Typ
148
1
1.1
3.6
2.5
80
120
25
3.6
1.5
1.18
1.18
800
25
2.5
29
160
0.6
885
© NXP B.V. 2011. All rights reserved.
26), all voltages
-
-
-
2.7
95
135
20
-
1.25
1.25
-
23.7 A
32
-
0.65
1085
Max
1.2
1.6
2.7
21 of 32
Unit
s
A
V
V
V
C
C
A
s
V
V
V
ns
V
A
A
V
ns