UNISONIC TECHNOLOGIES CO., LTD
UA7524
POWER FACTOR
CONTROLLER
DESCRIPTION
The UTC
UA7524
provides the necessary features to
implement the Electronic BALLAST control and S.M.P.S
application for designing active power factor correction circuit
LINEAR INTEGRATED CIRCUIT
DIP-8
FEATURES
* Internal self-starting
* Micro power start up mode
* Included under voltage lockout circuit
* Internal 2% reference
* High output current: peak 500mA
SOP-8
ORDERING INFORMATION
Ordering Number
Lead Free
UA7524L-D08-T
UA7524L-S08-R
UA7524L-S08-T
Halogen Free
UA7524G-D08-T
UA7524G-S08-R
UA7524G-S08-T
Package
DIP-8
SOP-8
SOP-8
Packing
Tube
Tape Reel
Tube
www.unisonic.com.tw
Copyright © 2011 Unisonic Technologies Co., Ltd
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UA7524
BLOCK DIAGRAM
LINEAR INTEGRATED CIRCUIT
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UA7524
ABSOLUTE MAXIMUM RATINGS
(T
A
= 25℃)
LINEAR INTEGRATED CIRCUIT
PARAMETER
SYMBOL
RATINGS
UNIT
Supply Voltage
V
CC
20
V
Peak Driver Output Current
I
O(PEAK)
500
mA
Detect Clamping Diode Current
I
DET
10
mA
Output Clamping Diode Current
I
O(CD)
10
mA
Junction Temperature
T
J
+125
°C
Operating Temperature
T
OPR
-20~+85
°C
Storage Temperature
T
STG
-40~+150
°C
Note 1. Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
2. The device is guaranteed to meet performance specification within 0℃~+70℃ operating temperature range
and assured by design from -20℃~+85℃.
ELECTRICAL CHARACTERISTICS
(T
A
= 25℃,
All voltage referenced to GND, unless otherwise
specified)
PARAMETER
SYMBOL
Under Voltage Lockout Section
Start Threshold Voltage
V
THR(ST)
UV lockout Hysteresis
V
HYS(UV)
Supply Zener Voltage
V
Z
SUPPLY CURRENT SECTION
Start-up Supply Current
I
START
Operating Supply Current
I
CC
Dynamic Operating Current
I
CC(D)
REFERENCE SECTION (Note 1)
Reference Voltage
V
REF
Line Regulation
ΔV
OUT
Load Regulation
ΔV
OUT
Temperature Stability
ST
T
ERROR AMPLIFIER SECTION
Input Offset Voltage
V
I(OFF)
Input Bias Current
I
I(BIAS)
Large Signal Open Loop gain
G
V
Power Supply Rejection Ratio
RR
I
SOURCE
Output Current
I
SINK
Output Voltage range
V
O(P)
Unity Gain Bandwidth
UB
W
Phase Margin
MPH
MULTIPLIER SECTION
M1 Input Voltage Range
V
I(M1)
M2 Input Voltage Range
V
I(M2)
Input Bias Current
I
I(BIAS)
Multiplier Gain (Note2)
G
V
Multiplier Gain Stability
ST
T
CURRENT DETECT SECTION
Input Voltage Threshold
V
I(THR)
Hysteresis
V
HYS
TEST CONDITIONS
MIN
9.2
1.8
TYP
10
2.0
17
0.25
6
10
2.45
12V< V
CC
<16V
0< I
REF
<2mA
2.5
0.1
0.1
20
MAX
10.8
2.2
UNIT
V
V
V
mA
mA
mA
V
mV
mV
mV
mV
μA
dB
dB
mA
mA
V
MHZ
°C
V
CC
<V
I(THR)
V
CC
=12V,No load
V
CC
=12V,f=50KHZ,C
GS
=1000pF
0.5
12
20
2.55
10
10
-15
-1
60
60
2
1.2
-0.1
100
86
15
1
-2
4
1.0
57
0
V
REF
-2
V
I(M1)
=0.5V,V
I(M2)
=3V
-0.5
0.8
-0.2
1.3
200
V
V
REF
+1 V
2
μA
/V
%/°C
1.6
V
mV
2
1.0
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UA7524
ELECTRICAL CHARACTERISTICS(Cont.)
PARAMETER
SYMBOL
Input Low Clamp Voltage
V
IC(L)
Input High Clamp Voltage
V
IC(H)
Input Current
I
IN
Input Clamp Diode Current
I
I(CD)
OUTPUT SECTION
Output Voltage(High)
V
O(H)
Output Voltage(low)
V
O(L)
Rising Time
t
R
Failing Time
t
F
SELF-START SECTION
Self Starting Time
t
SS
Note: 1. Reference can not be tested on the PKG
2. G
V
=V
O(M)
/(V
I(M1)
*(V
I(M2)
-V
REF
))
LINEAR INTEGRATED CIRCUIT
TEST CONDITIONS
I
DET
=0mA
I
DET
=3mA
0.8V<V
DET
<6V
V
DET
<0.9V,V
DET
>6V
I
OUT
=-10mA,V
CC
=12V
I
OUT
=10mA,V
CC
=12V
C
L
=1000pF
C
L
=1000pF
MIN
6.1
TYP
7.1
5
MAX
0.95
3
7
9
0.8
100
90
UNIT
V
V
μA
mA
V
V
ns
ns
μs
1.8
200
200
12
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UA7524
APPLICATION CIRCUIT
H
2A
L1
TNR
C1
C2
C4
BDI
R16
R14
T2
C3
NTC
LINEAR INTEGRATED CIRCUIT
F.G
D7
Q3
D5
D3
R17
LAMP TUBE 1
LAMP TUBE 1
C14
N
L2
L3
R1 R3 R4
D1
C5
R5
T1
D2
D9
DIAC
R18
T2
T2
Q1
C12
C13
5
7
2
1
4
6
R6
C8
R7
R8
R10
C9
R11
R13
C10
C11
Q2
D6
D4
R19
D8
C15
8
R9
R12
VR1
R2 C6 C7
3
PART LIST
RESISTOR
R1
1.8M
R2
10K
R3
100K
R4
3.3Ω
R5
22K
R7
2.2K
R8
2.2M
R9
150K
R10
330Ω
R11
0.75Ω
R12
5.1K
R13
1M
R14
390K
R15
3.9M
R16
5.1Ω
R17
27Ω
R18
5.1Ω
R19
27Ω
VR1
5K
NTC
10Ω
CAPACITOR
C1
0.1μF
C2
0.1μF
C3
4700pF
C4
4700pF
C5
0.1μF
C6
0.01μF
C7
100μF
C8
0.1μF
C9
3300pF
C10
47μF/450V
C11
0.1μF
C12
3300pF
C13
3300pF
C14
0.01μF
C15
0.01μF
SEMICONDUCTOR
IC1 UTC UA7524
Q1
IRF830
Q2
2SC5039
Q3
2SC5039
D1
1N4004
D2
1N4937
D3
1N4148
D4
1N4148
D5
FR107
D6
FR107
D7
FR107
D8
FR107
BD1
PBP204
TNR
12G471
DIAIC
32V
T1
T2
L1
L2
MAGNETICS
E1-25(PC30):P=70T,S=4T,Gap=0.5mm
D15(GP-5):P=3T,S=13T
EE-25(Iron Power),80mH
EI-25(PC30):150T,Gap=0.4mm
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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