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Компоненты Описание
UBA2014 Просмотр технического описания (PDF) - NXP Semiconductors.
Номер в каталоге
Компоненты Описание
производитель
UBA2014
600 V driver IC for HF fluorescent lamps
NXP Semiconductors.
UBA2014 Datasheet PDF : 19 Pages
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6. Block diagram
5
GND
1
CT
V
DD
VREF
7
14
3V
SUPPLY
reference
voltages
digital
supply (5 V)
analog
V
DD(L)
PREHEAT TIMER
reset
LOGIC
V
pd
BOOTSTRAP
UBA2014
DRIVER
LOGIC
STATE LOGIC
•
reset state
•
start-up state
•
preheat state
•
ignition state
•
burn state
•
hold state
•
power-down state
LEVEL
SHIFTER
HS
DRIVER
LS
DRIVER
9
FV
DD
10
GH
11
SH
6
GL
ANT/ CMD
12
ACM
PCS
8
PCS
VOLTAGE
CONTROLLED
OSCILLATOR
REFERENCE
I
CURRENT
V
4
3
IREF
CF
Fig 1. Block diagram
LAMP
VOLTAGE
SENSOR
V
lamp(fail)
V
lamp(max)
13
LVS
LOGIC
FREQUENCY
CONTROL
AVERAGE
CURRENT
SENSOR
2
CSW
15
CSP
16
CSN
mgw579
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