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參數資料
| 型號： | UBA2000T |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 模擬信號調理 |
| 英文描述： | Electronic TL-lamp starter(電子TL-lamp啟動器) |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, PDSO8 |
| 文件頁數： | 9/16頁 |
| 文件大小： | 102K |
| 代理商： | UBA2000T |
1996 Jan 03
9
Philips Semiconductors
Product specification
Electronic TL-lamp starter
UBA2000T
Output stage
I
source
peak source current
(pulse shape Fig.6)
output sink current
pulse width
pulse charge
output voltage
V
out
< 2 V; striking
switching device
V
out
= 0.8 V
V
CC
= 30 V
V
CC
= 30 V; note 3
I
sink
= 0.5 mA; driving gate
device in preheat mode
1.5
10
mA
I
sink
t
W
Q
p
V
out
50
5
21
6.8
mA
μ
s
nC
V
Timing
t
prf
t
prn
t
ini
preheat time (first)
preheat time (next)
initial time
N = 1; note 4
2
≤
N
≤
7; note 5
1.52
0.64
125
s
s
ms
Current protection
I
prot(m)
t
d
current protection level (peak value)
delay time before current protection is
enabled
2.2
3.4
70
A
ms
note 6
Sense resistor
R
sense
internal sense resistor
note 7
26
m
Preheat current
I
pr(rms)
preheat current (RMS value)
note 8
0.33
1.4
A
Switching off current
I
so
preheat current level at the moment it
is switched off
note 9
285
380
475
mA
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Notes
1.
2.
When the switching device is triggered, I
CC
= I
source
.
This is the active current when the lamp is lit.
The given value is valid for V
lamp
= 115 V. The total
current at V
in
equals: I
in
= I
CC
+ I
c
(leakage currents
are neglected).
Q
p
= I
source
×
t
p
.
Time is derived from the mains frequency; division
factor equals 76.
Time is derived from the mains frequency; division
factor equals 32.
The delay time is set by a clock signal, which is derived
from the current through the sense resistor. Due to
inrush transients of the preheat current, variation of t
d
is possible.
This is the resistance of the internal sense circuit
(excluding the bonding wires).
3.
4.
5.
6.
7.
8.
To guarantee good functioning, a crest factor of at
least 1.5 is needed at low currents.
When the holding current of TH1 is lower than I
so
, TH1
is switched off at the holding current (in case of a
trigger device).
9.
Fig.6 Pulse shape (typical value).
handbook, halfpage
MGE008
Isource
(mA)
3
tw = 7
μ
s
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