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UBA2000T 데이터시트(PDF) 6 Page - NXP Semiconductors

부품명 UBA2000T
상세설명  Electronic TL-lamp starter
PDF  16 Pages
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제조업체  PHILIPS [NXP Semiconductors]
홈페이지  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

UBA2000T 데이터시트(HTML) 6 Page - NXP Semiconductors

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1996 Jan 03
6
Philips Semiconductors
Product specification
Electronic TL-lamp starter
UBA2000T
Fig.5 Flow chart.
handbook, full pagewidth
MGE003
LOW VOLTAGE DETECTION
Start
charging of C1
S1 is closed
Enable reset
N = 1
CURRENT ALARM !!
Preheat
time
> tprn
VCC > VCC(rst)
VCC < VCC(rst)
VCC > VCC(sl)
Vin > Vign
Disable reset
N: ignition attempt count
N
> 7
Open int. switches
Switch ext. switch on
1st start ?
(N = 1)
Isense falling edge ?
Isense = Iso
Close int. switches
Turn ext.switch off
(Generate voltage-peak
to ignite TL-lamp)
Standby state
N = N
+ 1
Close int. switches
Close int. switches
Turn ext. switch off
(if it was on)
Turn ext. switch off
(if it was on)
yes
yes
yes
yes
yes
yes
yes
yes
yes
no
no
no
no
no
no
no
no
Standby state
Preheat
time
> tprf
Isense > Iprot
and t
> td
yes
yes
no
no
no
Isense > Iprot
and t
> td
The ext. switch is closed
when mains voltage is
near its peak value



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