Download KA7522/D Dimming Ballast Control IC

KA7522/D
DIMMING BALLAST CONTROL IC
BALLAST CONTROL IC
22 DIP
The KA7522 is a electronic ballast controller for fluorescent inverter systems. It contains whole function in KA7521, current feed back and preheating 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
20 SOP
ORDERING INFORMATION
Device
Package
KA7522
22 SDIP
Operating Temperature
-25 ~ + 100
KA7522D
20 SOP
-25 ~ + 100
Î
Î
BLOCK DIAGRAM
T sns
R hys
Vds
Vgs
VCC
18
16
15
20
17
BROW N
OUT
OVER
TEMPERATUR E
S A W TO O T H
GENERATOR
10
8
LOW TEMPER
IN P U T
V L IM IT
3 STEP
SOFT
START
ZVS GUA RD
CONTRO L
+
U V L O & 5 V V re f
2
D -F /F
-
2
OUTPUT
STAGE
14
V re f
2
OUT2
19
OUT1
7
12
D C - F E ED
F O R W AR D
D IM M IN G
BOX
CURREN T
FEEDBACK
M U L T IP L IE R
NON
LAMP
LAMP
DETECT
D E L A Y T IM E R
9
ñ
OVERCURREN T
4
V sns
LAMP RE SET
5
6
11
13
V lm 1
V lm 2
Vmo
V fb
Rev. B
©1999 Fairchild Semiconductor Corporation
KA7522/D
DIMMING BALLAST CONTROL IC
ABSOLUTE MAXIMUM RATINGS (T A = 25Î, unless otherwise specified)
Symbol
Value
Supply Voltage
Characteristic
VCC
20
Unit
V
Peak driver output current
IO(P)
500
mA
Operating ambient temperatute
T (OPR)
-25 ~ +100
Storage temperature
T STG
-65 ~ +150
Î
Î
ELECTRICAL CHARACTERISTICS
Î, unless otherwise specified)
(VCC = 12V, T A = 25
Characteristics
Symbol
Test Conditions
Min
Typ
Max
Unit
Under Voltage Lock Out Section
Start-Up Threshold Voltage
VST
11.4
12.4
13.4
V
UVLO Hysteresis
VTHS
3.6
4.2
4.8
V
0.5
0.8
1.1
mA
8
10.5
13
mA
5.0
ï
5.1
5.2
V
5
20
mV
KHz
Start-Up Supply Current
IST
VCC = 9V
Operating Supply Current
ICC
VCC = 14V, No Load
Reference Section
Reference Voltage
Load Regulation
VREF
LV
REF
I 5mA
0
REF
Preheating Section
Preheating Frequency
FP
VCS = 0V
125
145
165
Preheating Time Current
IP
VCS = 0V
8
14
20
T PD
2.5
3
3.5
Preheating Dead Time
sA
sA
Oscillator Section
Amplitude
V(OSC)
3.0
3.4
3.8
V
Normal Frequency
FN
80
100
120
KHz
Normal Dead Time
T ND
2.4
2.9
3.4
VCS = 2V
ss
3-step Frequency Section
Preheating Voltage Range
VPR
0.6
1
1.4
V
Soft start Voltage Range
VSR
1.2
1.6
2.0
V
KA7522/D
DIMMING BALLAST CONTROL IC
ELECTRICAL CHARACTERISTICS
Î, unless otherwise specified)
(VCC = 12V, T A = 25
Characteristic
Symbol
Test Conditions
Dimming Control Section
Dimming Current
IDIM
`
RD = 120K
Min
Typ
Max
Unit
26
33
40
sA
2.7
3.1
3.5
V
Option Comparator
Option Comparator Voltage
VOPT
Option Section
Rising time
TR
No Load, VCC = 10V
120
ns
TF
No Load, VCC = 10V
ï
ï
80
Falling time
20
100
VOH
IO = 30mA, VCC = 10V
7
Low Voltage
VOI
IO = 30mA, VCC = 10V
ï
8
ï
ns
High Voltage
0.1
0.4
V
V
Over Temperature Protection
High Temperature Voltage
VHT
0.4
0.8
1.2
V
Reset Temperature Voltage
VRT
1.7
2.1
2.5
Hysteresis Max Current
IHYS
80
100
120
sA
Input Voltage Limit
`
`
= 12K`
= 12K`
V
High Limit Voltage
VH(LIM)
RDS = 12K
4.8
5.3
5.8
V
High Limit Hysteresis
VHYS(H)
RDS = 12K
4.3
4.8
5.3
V
Low Limit Voltage
VI(LIM)
RDS
1.1
1.6
2.1
V
Low Limit Hysteresis
VHYS(I)
RDS
1.6
2.1
2.6
V
Lamp Detection
Lamp1 Detect Voltage
VIM 1
1.2
1.4
1.6
V
Lamp2 Detect Voltage
VIM 2
1.2
1.4
1.6
V
IP(-)
2
6
10
sA
0.02
Temperature Sense
Negative Preheating Current
Multiplier Section
Multiplier Gain (NOTE)
GM
ï
0.01
Multiplier Input 1 Current
IML
RML = M , VML = 27V
22
26
30
Multiplier Input 2 Current
IFB
VFB = GND
18
30
42
`
sA
sA
KA7522/D
DIMMING BALLAST CONTROL IC
ELECTRICAL CHARACTERISTICS
Î, unless otherwise specified)
(VCC = 12V, T A = 25
Characteristic
Symbol
Test Conditions
Min
Typ
Max
Unit
Brown Out Section
Borwn out Voltage
VBO
2.3
2.7
3.1
V
Borwn out Hysteresis
VBYS
2.6
3
3.4
V
VSF
2.5
2.9
3.3
V
IFF
19
23
27
sA
High Sense Voltage
VHS
0.05
0.2
0.4
mV
Low Sense Voltage
VIS
0.05
0.2
0.4
mV
Time Delay Section
Start Feedback Voltage
DC Feed Forward Section
Feed Forward Current
ZVS Guard Section0.4
KA7522/D
DIMMING BALLAST CONTROL IC
PIN CONNECTION (top view)
20 SOP
GND
1
Out1
•
22 DIP
20
VCC
GND
1
2
19
Out2
Out1
NC
3
18
R hys
Vsns
4
17
Vlm1
5
Vlm2
•
22
VCC
2
21
Out2
NC
3
20
R hys
T sns
Vsns
4
19
T sns
16
Vds
Vlm1
5
18
Vds
6
15
Vgs
Vlm2
6
17
Vgs
Ct
7
14
Vref
NC
7
16
NC
Rt
8
13
Vfb
Ct
8
15
Vref
Rd
9
12
Vml
Rt
9
14
Vfb
Cs
10
11
Vmo
Rd
10
13
Vml
Cs
11
12
Vmo
KA7522D
KA7522
DIMMING BALLAST CONTROL IC
KA7522/D
H
F.G
N
250V/2A
FUSE
12G471K
TNR
C1
0.1u/450V
BSF-2125
L1
C2
0.1u/450V
C3
+
KBL205
B/D
ZD1
18V / 1W
22
VCC
21
OUT 2
20
Rhys
19
T sns
17
Vds
16
Vgs
9
Rt
13
Vm1
14
Vfb
15
Vref
10
Rd
12
Vfo
K
A
7
5
2
2
11
Cs
8
Ct
6
Vlm2
5
Vlm1
4
Vsns
3
NC
2
OUT 1
1
GND
10D-11
NTC 1
4700pF/450V
C4
VR2
33K
4700pF/450V
10K VR1
C7
330pF/10V
500K
C8
10uF/10V
C10
104
+ C9
22uF
25V
NTC 2
KTD 5-350
R2
51K
C11
104 /10V
+
47
C5
/250V
R3
12K
C12
2K
R6
104 /10V
1M
R4
1M
R5
n1
T1
D4
n2
Q1
IRF830
Q2
IRF830
1N4148
D5
R12
1M
R13
12K
R11
300K
C13
222
630V
L2, L3 : E I25
R14
1K
:
:
L3
L2
D6
C21
D8
VER. 7.1
C19
1N
4937
1N
4937
103
630V
103
630V
1N
4937
R19
C18
103
630V
1M
104
50V
D9
R17
R20
C22
1M
30K
D7
R18
C20
30K
R16 390K
C17
103 1N
630V 4937
104
50V
C16
882 / 1000V
LAM P
LAM P
882 / 1000V
C15
R15 390K
KA7522 APPLICATIO
APPLICATIONN
KA7522
1N4148
R7
51ã
R8
51ã
T 1 : E E1619
: n1:n2:n3 = 32:24:24
n3
R9
1.0ã
R10
1.2ã
KA7522/D
DIMMING BALLAST CONTROL IC
PARTS LIST (KA7522/D)
Part
R1
R2
R3
R4
R5
R6
R7
R8
R9
R10
R11
R12
R13
R14
R15
R16
R17
R18
R19
R20
R21
R22
R23
R24
R25
R26
R27
R28
R29
`
100K`
2K`
22K`
1K`
10`
50K`
36K`
1K`
1K`
2K`
1.2`
100`
22`
22`
1M`
12K`
390K`
390K`
1M`
1M`
390K`
390K`
30K`
1`
30K`
12K`
1M`
1M`
100K
Value
Part
1W
R30
1W
VR1
C1
C2
1/2W
Value
Part
Value
D1
1N4937
500K
D2
1N4937
`
0.1sF
0.1sF
D3
1N4937
250V
D4
1N4937
D5
1N4937
D6
1N4937
C3
4700pF
250V
250V
C4
4700pF
250V
C5
0.1
315V
C6
22
24V
ZD1
15V
C9
104
10V
10V
ZD2
3.9V
0.5W
C10
104
10V
ZD3
3.9V
0.5W
C11
102
C12
C13
68 F
152
450V
630V
Q1
KSP44
C14
822
1000V
Q2
KSP44
C15
822
1000V
Q3
IRF830
C16
103
630V
Q4
IRF830
C17
103
630V
C18
103
630V
L1
BSF-2125
C19
103
630V
T1
EE1619
C20
1
10V
T2
EI25
C21
22
10V
T3
EI25
B/D
KBL205
IC
KA7522D
FUSE
250V/2A
C7
C8
1W
`
1K
C22
sF
sF
330sF
10sF
s
sF
sF
1sF
TNR
12G471K
NTC1
10D-11
NTC2
KTD5-350
10V
10V
10V
1W
TRADEMARKS
The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is
not intended to be an exhaustive list of all such trademarks.
ACEx™
CoolFET™
CROSSVOLT™
E2CMOSTM
FACT™
FACT Quiet Series™
FAST®
FASTr™
GTO™
HiSeC™
ISOPLANAR™
MICROWIRE™
POP™
PowerTrench™
QS™
Quiet Series™
SuperSOT™-3
SuperSOT™-6
SuperSOT™-8
TinyLogic™
UHC™
VCX™
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER
NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD
DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT
OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT
RIGHTS, NOR THE RIGHTS OF OTHERS.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION.
As used herein:
1. Life support devices or systems are devices or
2. A critical component is any component of a life
support device or system whose failure to perform can
systems which, (a) are intended for surgical implant into
be reasonably expected to cause the failure of the life
the body, or (b) support or sustain life, or (c) whose
support device or system, or to affect its safety or
failure to perform when properly used in accordance
with instructions for use provided in the labeling, can be
effectiveness.
reasonably expected to result in significant injury to the
user.
PRODUCT STATUS DEFINITIONS
Definition of Terms
Datasheet Identification
Product Status
Definition
Advance Information
Formative or
In Design
This datasheet contains the design specifications for
product development. Specifications may change in
any manner without notice.
Preliminary
First Production
This datasheet contains preliminary data, and
supplementary data will be published at a later date.
Fairchild Semiconductor reserves the right to make
changes at any time without notice in order to improve
design.
No Identification Needed
Full Production
This datasheet contains final specifications. Fairchild
Semiconductor reserves the right to make changes at
any time without notice in order to improve design.
Obsolete
Not In Production
This datasheet contains specifications on a product
that has been discontinued by Fairchild semiconductor.
The datasheet is printed for reference information only.
TRADEMARKS
The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is
not intended to be an exhaustive list of all such trademarks.
ACEx™
CoolFET™
CROSSVOLT™
E2CMOSTM
FACT™
FACT Quiet Series™
FAST®
FASTr™
GTO™
HiSeC™
ISOPLANAR™
MICROWIRE™
POP™
PowerTrench™
QS™
Quiet Series™
SuperSOT™-3
SuperSOT™-6
SuperSOT™-8
TinyLogic™
UHC™
VCX™
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER
NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD
DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT
OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT
RIGHTS, NOR THE RIGHTS OF OTHERS.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION.
As used herein:
1. Life support devices or systems are devices or
2. A critical component is any component of a life
support device or system whose failure to perform can
systems which, (a) are intended for surgical implant into
be reasonably expected to cause the failure of the life
the body, or (b) support or sustain life, or (c) whose
support device or system, or to affect its safety or
failure to perform when properly used in accordance
with instructions for use provided in the labeling, can be
effectiveness.
reasonably expected to result in significant injury to the
user.
PRODUCT STATUS DEFINITIONS
Definition of Terms
Datasheet Identification
Product Status
Definition
Advance Information
Formative or
In Design
This datasheet contains the design specifications for
product development. Specifications may change in
any manner without notice.
Preliminary
First Production
This datasheet contains preliminary data, and
supplementary data will be published at a later date.
Fairchild Semiconductor reserves the right to make
changes at any time without notice in order to improve
design.
No Identification Needed
Full Production
This datasheet contains final specifications. Fairchild
Semiconductor reserves the right to make changes at
any time without notice in order to improve design.
Obsolete
Not In Production
This datasheet contains specifications on a product
that has been discontinued by Fairchild semiconductor.
The datasheet is printed for reference information only.