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STMicroelectronics
STMicroelectronics

STV9378 Datasheet

VERTICAL DEFLECTION BOOSTER


STV9378 Datasheet Preview


STV9378
VERTICAL DEFLECTION BOOSTER
...... POWERAMPLIFIER
FLYBACK GENERATOR
THERMAL PROTECTION
OUTPUT CURRENT UP TO 2.0APP
FLYBACK VOLTAGE UP TO 90V (on Pin 5)
INTERNAL REFERENCE VOLTAGE
ADVANCE DATA
DESCRIPTION
Designed for monitors and high performance TVs,
the STV9378 vertical deflection booster delivers
flyback voltages up to 90V.
The STV9378 operateswith supplies up to 42V and
provides up to 2App output current to drive the
yoke.
The STV9378 is offered in HEPTAWATT package.
PIN CONNECTIONS
HEPTAWATT
(Plastic Package)
ORDER CODE : STV9378
7
6
5
4
3
2
1
Tab connected to pin 4
Non-inverting Input and Reference Voltage
Output Stage Supply
Output
GND
Flyback Generator
Supply Voltage
Inverting Input
July 1994
This is advance information on a new product now in development or undergoing evaluation. Details are subject to change without no tice.
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Page 1

STV9378
BLOCK DIAGRAM
OUTPUT
SUPPLY STAGE
VOLTAGE SUPPLY
26
FLYBACK
GENERATOR
3
REFERENCE
VOLTAGE
FLYBACK
GENERATOR
INVERTING INPUT 1
NON-INVERTING INPUT
OR REFERENCE VOLTAGE
7
STV9378
POWER
AMPLIFIER
5 OUTPUT
4
GROUND
THER MAL
PROTECTION
ABSOLUTE MAXIMUM RATINGS
Symbol
VS
V6
V1 , V7
IO
I3
I3
To per
Tstg
Tj
Notes :
1.
2.
3.
Parameter
Supply Voltage (Pin 2) (see note 1)
Flyback Peak Voltage (Pin 6) (see note 1)
Amplifier Input Voltage (Pins 1-7) (see note 1)
Maximum Output Peak Current (see notes 2 and 3)
Maximum Sink Current (first part of flyback) (t < 1ms)
Maximum Source Current (t < 1ms)
Operating Ambient Temperature
Storage Temperature
Junction Temperature
Versus GND.
The output current can reach 4A peak for t 10µs (up to 120Hz).
Provided SOAR is respected (see Figures 1 and 2).
Value
50
100
- 0.3, + VS
1.5
1.5
1.5
- 20, + 75
- 40, + 150
+150
THERMAL DATA
Symbol
Rth (j-c)
Tt
Tt
Tjr
Parameter
Junction-case Thermal Resistance
Temperature for Thermal Shutdown
Hysteresis on Tt
Recommended Max. Junction Temperature
Max.
Value
3
150
10
120
Unit
V
V
V
A
A
A
oC
oC
oC
Unit
oC/W
oC
oC
oC
2/5
www.DataSheet.in
Page 2

STV9378
ELECTRICAL CHARACTERISTICS
(VS = 42V, TA = 25oC, unless otherwise specified)
Symbol
VS
I2
I6
IO
I1
V7
V7
VS
Kt
GV
V5L
V5H
VD5 - 6
VD3 - 2
V3L
V3SH
Parameter
Operating Supply Voltage Range
Pin 2 Quiescent Current
Pin 6 Quiescent Current
Max. Peak Output Current
Amplifier Bias Current
Internal Reference Voltage
Test Conditions
I3 = 0, I5 = 0
I3 = 0, I5 = 0
V1 = 1V
Reference Voltage Drift versus VS
VS = 24 to 42V
Reference Voltage Drift versus Tj
Voltage Gain
Output Saturation Voltage to GND (Pin 4)
Output Saturation Voltage to Supply (Pin 6)
Diode Forward Voltage between Pins 5-6
Diode Forward Voltage between Pins 3-2
Saturation Voltage on Pin 3
Saturation Voltage to Pin 2 (2nd part of flyback)
I5 = 1A
I5 = - 1A
I5 = 1A
I3 = 1A
I3 = 20mA
I3 = - 1A
Min.
10
5
2.2
Typ.
10
10
- 0.15
2.3
Max.
42
20
30
1
-1
2.4
Unit
V
mA
mA
A
µA
V
2 4 mV/V
100 150 ppm/oC
80 dB
1 1.5
V
1.6 2.1
V
1.5 2
V
1.5 2
V
0.8 1.2
V
2.1 2.9
V
APPLICATION CIRCUIT
+ VS
CF
26
REFERENCE
VOLTAGE
3
FLYBACK
GENERATOR
R5
10µF
1
7
STV9378
POWER
AMPLIFIER
5
THERMAL
PROTECTION
4
R3 R4
CL
R2
R1
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3/5
Page 3
Part Number STV9378
Manufactur STMicroelectronics
Description VERTICAL DEFLECTION BOOSTER
Total Page 5 Pages
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