UBA2000T データシートの表示（PDF） - Philips Electronics
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UBA2000T Datasheet PDF : 16 Pages
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Philips Semiconductors
Electronic TL-lamp starter
Product specification
UBA2000T
SYMBOL
PARAMETER
CONDITIONS
Output stage
Isource
peak source current
(pulse shape Fig.6)
Isink
output sink current
tW
pulse width
Qp
pulse charge
Vout
output voltage
Vout < 2 V; striking
switching device
Vout = 0.8 V
VCC = 30 V
VCC = 30 V; note 3
Isink = 0.5 mA; driving gate
device in preheat mode
Timing
tprf
preheat time (first)
tprn
preheat time (next)
tini
initial time
N = 1; note 4
2 ≤ N ≤ 7; note 5
Current protection
Iprot(m)
td
current protection level (peak value)
delay time before current protection is note 6
enabled
Sense resistor
Rsense
internal sense resistor
note 7
Preheat current
Ipr(rms)
preheat current (RMS value)
note 8
Switching off current
Iso
preheat current level at the moment it note 9
is switched off
MIN. TYP. MAX. UNIT
1.5 −
10
mA
50
−
−
mA
5
−
−
µs
21
−
−
nC
−
6.8 −
V
−
1.52 −
s
−
0.64 −
s
−
125 −
ms
2.2 3.4 −
A
−
70
−
ms
−
26
−
mΩ
0.33 −
1.4 A
285 380 475 mA
Notes
1. When the switching device is triggered, ICC = Isource.
2. This is the active current when the lamp is lit.
The given value is valid for Vlamp = 115 V. The total
current at Vin equals: Iin = ICC + Ic (leakage currents
are neglected).
3. Qp = Isource × tp.
4. Time is derived from the mains frequency; division
factor equals 76.
5. Time is derived from the mains frequency; division
factor equals 32.
6. 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 td
is possible.
7. This is the resistance of the internal sense circuit
(excluding the bonding wires).
8. To guarantee good functioning, a crest factor of at
least 1.5 is needed at low currents.
9. When the holding current of TH1 is lower than Iso, TH1
is switched off at the holding current (in case of a
trigger device).
handbook, halfpage
3
Isource
(mA)
tw = 7 µs
MGE008
Fig.6 Pulse shape (typical value).
1996 Jan 03
9
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