STV9379FA
VERTICAL DEFLECTION BOOSTER
June 1998
Output Stage Supply
Output
GND or Negative Supply
Flyback Supply
Supply Voltage
Inverting Input
Tab connected to pin 4
7
6
5
4
3
2
1
Non-inverting Input
93
79
F
A
01.
E
P
S
PIN CONNECTIONS
HEPTAWATT
(Plastic Package)
ORDER CODE : STV9379FA
.
POWER AMPLIFIER
.
THERMAL PROTECTION
.
OUTPUT CURRENT UP TO 2.6A
PP
.
FLYBACK VOLTAGE UP TO 90V (on Pin 5)
.
SUITABLE FOR DC COUPLING APPLICATION
.
EXTERNAL FLYBACK SUPPLY
DESCRIPTION
Designed for monitors and high performance TVs,
the STV9379FA vertical deflection booster can
handle flyback voltage up to 90V. Further to this, it
is possible to have a flyback voltage which is more
than the double of the supply (Pin 2). This allows
to decrease the power consumption, or to decrease
the flyback time for a given supply voltage.
The STV9379FA operates with supplies up to 42V
and provides up to 2.6A
PP
output current to drive
the yoke.
The STV9379FA is offered in HEPTAWATT package.
1/5
POWER
AMPLIFIER
4
5
7
THERMAL
PROTECTION
1
2
6
3
INVERTING INPUT
NON-INVERTING INPUT
OUTPUT
GROUND or NEGATIVE SUPPLY
FLYBACK
SUPPLY
OUTPUT
STAGE
SUPPLY
SUPPLY
VOLTAGE
STV9379FA
93
79
F
A
0
2
.
E
P
S
BLOCK DIAGRAM
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
V
S
Supply Voltage (Pin 2) (see note 1)
50
V
V
6
Flyback Peak Voltage (Pin 6) (see note 1)
100
V
V
1
, V
7
Amplifier Input Voltage (Pins 1-7) (see note 1)
- 0.3, + V
S
V
I
O
Maximum Output Peak Current (see notes 2 and 3)
1.8
A
I
3
Maximum Sink Current (t < 1ms)
1.8
A
I
3
Maximum Source Current (t < 1ms) (in the diode, see Block Diagram)
(see note 2)
1.8
A
V
ESD
ESD susceptibility : EIAJ Norm (200pF discharged through 0
)
300
V
V
3
- V
2
Voltage Difference between Flyback Supply and Supply Voltage
50
V
T
oper
Operating Ambient Temperature
- 20, + 75
o
C
T
stg
Storage Temperature
- 40, + 150
o
C
T
j
Junction Temperature
+150
o
C
Notes :
1.
Versus Pin 4.
2.
The output current can reach 5A peak for t
10
s (up to 120Hz).
3.
Provided SOAR is respected (see Figures 1 and 2).
93
79
F
A
01
.
T
B
L
THERMAL DATA
Symbol
Parameter
Value
Unit
R
th (j-c)
Junction-case Thermal Resistance
Max.
3
o
C/W
T
t
Temperature for Thermal Shutdown
150
o
C
T
t
Hysteresis on T
t
10
o
C
T
jr
Recommended Max. Junction Temperature
120
o
C
93
79
F
A
02
.
T
B
L
STV9379FA
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ELECTRICAL CHARACTERISTICS
(V
S
= 42V, T
A
= 25
o
C, unless otherwise specified)
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
S
Operating Supply Voltage Range
Versus Pin 4
10
42
V
V
3M
Operating Flyback Supply Voltage (V
3M
V
S
+ 50V)
Versus Pin 4
V
S
90
V
I
2
Pin 2 Quiescent Current
I
3
= 0, I
5
= 0
13
20
mA
I
6
Pin 6 Quiescent Current
I
3
= 0, I
5
= 0
5
10
30
mA
I
O
Max. Operating Peak Output Current
1.3
A
I
1
Amplifier Bias Current
V
1
= 22V, V
7
= 23V
- 0.15
- 1
A
I
7
Amplifier Bias Current
V
1
= 23V, V
7
= 22V
- 0.15
- 1
A
V
IO
Offset Voltage
7
mV
V
IO
/dt
Offset Drift versus Temperature
- 10
V/
o
C
GV
Voltage Gain
80
dB
V
5L
Output Saturation Voltage to GND (Pin 4)
I
5
= 1.3A
1
1.6
V
V
5H
Output Saturation Voltage to Supply (Pin 6)
I
5
= - 1.3A
1.6
2.2
V
V
D5 - 6
Diode Forward Voltage between Pins 5-6
I
5
= 1.3A
1.4
2.1
V
V
D3 - 6
Diode Forward Voltage between Pins 3-6
I
3
= 1.3A
1.7
2.5
V
V
3-6
Voltage Drop between Pins 3-6 (2nd part of flyback)
I
3
= - 1.3A
2.9
3.6
V
93
79
F
A
03
.
T
B
L
POWER
AMPLIFIER
4
5
7
1.
5
W
R5
R3
R2
R4
R1
0.
22
m
F
1
2
6
Flyback
Supply
V
REF
Ly
Yoke
Rd (*)
+V
S
C
L
STV9379FA
THERMAL
PROTECTION
3
Ly
50
m
s
Ly
20
m
s
< Rd <
(*)
93
79
F
A
03
.
E
P
S
APPLICATION CIRCUITS
AC COUPLING
STV9379FA
3/5
Vertical
Position
Adjustment
POWER
AMPLIFIER
4
5
7
1.
5
W
R5
R2
R1
0.
22
m
F
1
2
6
Flyback
Supply
Ly
Yoke
Rd (*)
+V
S
STV9379FA
THERMAL
PROTECTION
3
Ly
50
m
s
Ly
20
m
s
< Rd <
V
REF
+
-V
EE
(*)
93
79
F
A
0
4
.
E
P
S
APPLICATION CIRCUITS (continued)
DC COUPLING
10
1
10
10
-1
-2
1
10
10
2
I
(A)
C
V
(V)
CE
@ T
case
= 25C
t = 1ms
t = 10ms
t = 100ms
937
9F
A
0
5.
E
P
S
Figure 1 : Output Transistors SOA
(for secondary breakdown)
100
90
80
70
60
25
50
75
100
125
ISB (%)
T
case
(C)
93
79
F
A
06
.
E
P
S
Figure 2 : Secondary Breakdown Temperature
Derating Curve
(ISB = secondary breakdown current)
STV9379FA
4/5
P
M
-H
EPT
V.
EPS
PACKAGE MECHANICAL DATA : 7 PINS - PLASTIC HEPTAWATT
Dimensions
Millimeters
Inches
Min.
Typ.
Max.
Min.
Typ.
Max.
A
4.8
0.189
C
1.37
0.054
D
2.4
2.8
0.094
0.110
D1
1.2
1.35
0.047
0.053
E
0.35
0.55
0.014
0.022
F
0.6
08
0.024
0.031
F1
0.9
0.035
G
2.41
2.54
2.67
0.095
0.100
0.105
G1
4.91
5.08
5.21
0.193
0.200
0.205
G2
7.49
7.62
7.8
0.295
0.300
0.307
H2
10.4
0.409
H3
10.05
10.4
0.396
0.409
L
16.97
0.668
L1
14.92
0.587
L2
21.54
0.848
L3
22.62
0.891
L5
2.6
3
0.102
0.118
L6
15.1
15.8
0.594
0.622
L7
6
6.6
0.236
0.260
M
2.8
0.110
M1
5.08
0.200
Dia.
3.65
3.85
0.144
0.152
H
EPT
V.
T
B
L
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the
consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from
its use. No licence is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications
mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information
previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems
without express written approval of STMicroelectronics.
The ST logo is a trademark of STMicroelectronics
1998 STMicroelectronics - All Rights Reserved
Purchase of I
2
C Components of STMicroelectronics, conveys a license under the Philips I
2
C Patent.
Rights to use these components in a I
2
C system, is granted provided that the system conforms to
the I
2
C Standard Specifications as defined by Philips.
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STV9379FA
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