Product Summary

The TDA8357J is a full bridge vertical deflection output circuit in LVDMOS. 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 of the TDA8357J 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 of the TDA8357J is constructed in a Low Voltage DMOS (LVDMOS) process that combines bipolar, CMOS and DMOS devices. DMOS transistor of the TDA8357J is used in the output stage because of absence of second breakdown.

Parametrics

TDA8357J absolute maximum ratings: (1)VP supply voltage: 7.5 to 18 V; (2)VFB flyback supply voltage: 2VP to 66 V; (3)Iq(P)(av) average quiescent supply current during scan: 10 to 15 mA; (4)Iq(FB)(av) average quiescent flyback supply current during scan : 10 mA; (5)Ptot total power dissipation: 8 W; (6)Tstg storage temperature: -55 to +150 ℃; (7)Tamb ambient temperature: -25 to +75 ℃; (8)Tj junction temperature: 150 ℃.

Features

TDA8357J features: (1)Few external components required; (2)High efficiency fully DC coupled vertical bridge output circuit; (3)Vertical flyback switch with short rise and fall times; (4)Built-in guard circuit; (5)Thermal protection circuit; (6)Improved EMC performance due to differential inputs.

Diagrams

TDA8357J Block diagram

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