Roadstar CTV-1015, Руководство по обслуживанию

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FEATURES
Few external components required
High efficiency fully DC coupled vertical bridge output
circuit
Vertical flyback switch with short rise and fall times
Built-in guard circuit
Thermal protection circuit
Improved EMC performance due to differential inputs.
GENERAL DESCRIPTION
The TDA8357J is a power circuit for use in 90° and 110°
colour deflection systems for 25 to 200 Hz field
frequencies, and for 4 : 3 and 16 : 9 picture tubes. The IC
contains a vertical deflection output circuit, operating as a
high efficiency class G system. The full bridge output
circuit allows DC coupling of the deflection coil in
combination with single positive supply voltages.
The IC is constructed in a Low Voltage DMOS (LVDMOS)
process that combines bipolar, CMOS and DMOS
devices. DMOS transistors are used in the output stage
because of absence of second breakdown.
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
Supplies
V
P
supply voltage 7.5 12 18 V
V
FB
flyback supply voltage 2VP 45 66 V
Iq
(P)(av)
average quiescent supply current during scan 10 15 mA
Iq
(FB)(av)
average quiescent flyback supply current during scan 10 mA
P
tot
total power dissipation 8 W
Inputs and outputs
V
i(p-p)
input voltage (peak-to-peak value) 1000 1500 mV
I
o(p-p)
output current (peak-to-peak value) 2.0 A
Flyback switch
I
o(peak)
maximum (peak) output current t 1.5 ms 1.2 A
Thermal data; in accordance with IEC 747-1
T
stg
storage temperature 55 +150 °C
T
amb
ambient temperature 25 +85 °C
Tj junction temperature 150 °C
TYPE PACKAGE
NUMBER NAME DESCRIPTION VERSION
TDA8357J DBS9P plastic DIL-bent-SIL power package; 9 leads (lead length 12/11 mm); SOT523-1
exposed die pad
QUICK REFERENCE DATA
ORDERING INFORMATION
Full bridge vertical deflection output circuit in LVDMOS
TDA8357J