UBA2014 NXP Semiconductors, UBA2014 Datasheet - Page 14

• Manufacturer Part Number: UBA2014
• Description: 600 V Driver Ic For Hf Fluorescent Lamps
• Manufacturer: NXP Semiconductors

Fig 8. Test and application circuit
330 nF
V
400 V
DC
C7
F1
1A
V DD
CT
C15
330 nF
7
1
REFERENCE
PREHEAT
CURRENT
SUPPLY
UBA2014
TIMER
IREF
4
R12
33 k
GND
5
CONTROLLED
OSCILLATOR
BOOTSTRAP
DIVIDER
CONTROL
VOLTAGE
DRIVER
3
CF
C14
100 pF
NON-OVERLAP TIMING
MODE DETECTOR
AND CAPACITIVE
2
CSW
ADAPTIVE
C13
220 nF
AVERAGE
CURRENT
HIGH SIDE
LOW SIDE
PREHEAT
CURRENT
SENSOR
VOLTAGE
SENSOR
SENSOR
DRIVER
DRIVER
LAMP
14
VREF
1 M
R4
220 k
10
11
12
13
16
15
R3
9
6
8
GH
SH
GL
CS N
CS P
FV DD
ACM
PCS
LVS
C3
1 n
F
C5
100 nF
150
R13
R2
8.2
k
C2
12 n
8.2 k
47
R9
R8
F
TR1
IRF820
TR2
IRF820
R14
1
C19
56 nF
R16
1.5
C6
1.2 nF
C10
5.6 nF
R5
10 k
220 k
R20
Z1
12 V
BYD77D
D1
BYD77D
D4
1.9 mH
C8
330 pF
L1
C17
6.8 nF
8.2 nF
C22
R10
1 M
R18
180 k
100 nF
100 nF
mgw586
C23
C24
TLD36W
R1
1 M
C20
68 nF