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 inputsPinoutSpecifications SY...
TDA8357J: 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...
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SYMBOL | PARAMETER | CONDITIONS | MIN. | MAX. | UNIT |
VP | supply voltage | 18 | V | ||
VFB | flyback supply voltage | 68 | V | ||
Vn | DC voltage pin OUTA pin OUTB pins INA, INB, GUARD and FEEDB |
note 1 | - - -0.5 |
68 |
V |
In | DC current pins OUTA and OUTB pins INA, INB, GUARD and FEEDB |
during scan (peak-to-peak value) at flyback (peak); t 1.5 ms |
- - -20 |
2.0 ±1.2 +20 |
A A mA |
Ilu | latch-up currentcurrent into any pincurrent out of any pin | at Tj(max) pin voltage = 1.5*VP pin voltage = -1.5*VP |
- -200 |
+200 - |
mA |
Ves | electrostatic handling voltage | machine model; note 2 human body model; note 3 |
-350 -4000 |
+350 +4000 |
V V |
Ptot | total power dissipation | 8 | W | ||
Tstg | total power dissipation | -55 | +150 | ||
Tamb | ambient temperature | -25 | +85 | ||
Tj | junction temperature | note 4 | 150 |
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 TDA8357J 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.