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Número de pieza | KA7522D | |
Descripción | DIMMING BALLAST CONTROL IC | |
Fabricantes | Fairchild Semiconductor | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de KA7522D (archivo pdf) en la parte inferior de esta página. Total 9 Páginas | ||
No Preview Available ! KA7522/D
DIMMING BALLAST CONTROL IC
BALLAST CONTROL IC
The KA7522 is a electronic ballast controller for fluorescent inverter syst-
ems. It contains whole function in KA7521, current feed back and prehea-
ting time controlled by temperature sensing.
FEATURES
• 3-step soft start
• Input voltage limit & Brown out
• Non Lamp detect, & Lamp reset
• ZVS Guard control
• Current feedback control
• Preheating time controlled by temperature sensing
22 DIP
20 SOP
BLOCK DIAGRAM
Tsns
17
Rhys
18
ORDERING INFORMATION
Device
KA7522
KA7522D
Package
22 SDIP
20 SOP
Operating Temperature
Î-25 ~ + 100
Î-25 ~ + 100
Vds
Vgs
16 15
VCC
20
BROW N
OUT
OVER
TEMPERATUR E
IN P U T
V LIM IT
ZVS GUARD
CONTRO L
10
3 STEP
8 LOW - SOFT
TEMPER
START
7
SAW TOO TH
GENERA-
TOR
+
-
U V L O & 5 V V re f
1 4 V re f
2
D -F/F
2
OUTPUT
STAGE
2 OUT2
19 OUT1
D C -F E ED
12 FORW AR D
DELAY TIMER
D IM M IN G
BOX
CURREN T
FEEDBACK
M U LT IP LIE R
LAMP
DETECT
NON
LAMP
OVER-
CURREN T
4 Vsns
LAMP RESET
9
ñ
5
V lm 1
6
V lm 2
11
Vmo
13
V fb
©1999 Fairchild Semiconductor Corporation
Rev. B
1 page KA7522/D
DIMMING BALLAST CONTROL IC
PIN CONNECTION (top view)
20 SOP
•GND 1
Out1 2
20 VCC
19 Out2
NC 3
18 R hys
Vsns 4
Vlm1 5
17 Tsns
KA7522D
16 Vds
Vlm2 6
15 Vgs
Ct 7
14 Vref
Rt 8
Rd 9
Cs 10
13 Vfb
12 Vml
11 Vmo
22 DIP
•GND 1
Out1 2
NC 3
Vsns 4
Vlm1 5
KA7522
Vlm2 6
NC 7
Ct 8
Rt 9
Rd 10
Cs 11
22 VCC
21 Out2
20 R hys
19 Tsns
18 Vds
17 Vgs
16 NC
15 Vref
14 Vfb
13 Vml
12 Vmo
5 Page |
Páginas | Total 9 Páginas | |
PDF Descargar | [ Datasheet KA7522D.PDF ] |
Número de pieza | Descripción | Fabricantes |
KA7522 | DIMMING BALLAST CONTROL IC | Fairchild Semiconductor |
KA7522D | DIMMING BALLAST CONTROL IC | Fairchild Semiconductor |
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