Sony stv9379 Service Manual
VERTICALDEFLECTION BOOSTER
.
POWERAMPLIFIER
.
FLYBACKGENERATOR
.
THERMAL PROTECTION
.
OUTPUTCURRENT UP TO 2.0A
.
FLYBACKVOLTAGEUP TO 90V (on Pin5)
.
SUITABLEFOR DC COUPLING APPLICA TION
DESCRIPTION
Designedfor monitors and high performanceTVs,
the STV9379 vertical deflection booster delivers
flyback voltagesup to 90V.
TheSTV9379operateswithsuppliesupto 42Vand
provides up to 2App output current to drive the
yoke.
The STV9379 is offered in HEPTAWATTpackage.
PP
STV9379
HEPTAWATT
(Plastic Package)
ORDER CODE: STV9379
PIN CONNECTIONS
Tab connectedto pin 4
May 1996
7
6
5
4
3
2
1
Non-invertingInput
Output Stage Supply
Output
GND
Flyback Generator
SupplyVoltage
InvertingInput
9379-01.EPS
1/5
STV9379
BLOCK DIAGRAM
OUTPUT
SUPPLY
VOLTAGE
STAGE
SUPPLY
236
FLYBACK
GENERATOR
FLYBACK
GENERATOR
INVERTING INPUT
NON-INVERTING INPUT
1
7
STV9379
POWER
AMPLIFIER
4
GROUND
THERMAL
PROTECTION
5
OUTPUT
ABSOLUTEMAXIMUMRATINGS
Symbol Parameter Value Unit
V
V
V
1,V7
I
I
I
V
ESD
T
oper
T
T
Notes : 1. Versus GND.
Supply Voltage (Pin 2)(see note 1) 50 V
S
Flyback PeakVoltage (Pin 6)(see note 1) 100 V
6
Amplifier Input Voltage(Pins 1-7) (see note 1) - 0.3, + V
Maximum OutputPeak Current (see notes 2 and 3) 1.5 A
O
Maximum SinkCurrent (first part of flyback) (t < 1ms) 1.5 A
3
Maximum SourceCurrent (t< 1ms) 1.5 A
3
Electrostatic Handling for all pins (see note 4) 300 V
Operating Ambient Temperature - 20, + 75
Storage Temperature - 40, + 150
stg
Junction Temperature +150
j
2. The output current can reach 4A peakfor t ≤ 10µs (up to 120Hz).
3. Provided SOAR is respected (see Figures 1 and 2).
4. Equivalent to discharging a 200pF capacitor through a 0Ω series resistor.
S
9379-02.EPS
V
o
C
o
C
o
C
9379-01.TBL
THERMALDATA
Symbol Parameter Value Unit
Junction-case Thermal Resistance Max. 3
Temperature for ThermalShutdown 150
t
Hysteresis on T
t
Recommended Max. JunctionTemperature 120
jr
t
10
2/5
R
th (j-c)
T
∆T
T
o
C/W
o
C
o
C
o
C
9379-02.TBL
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