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Service manual WP 895/895F, CP885/885F
The TDA835xJ are power circuit for use in 90o and 110o colour deflection systems for field frequencies of 25 to 200Hz and 16/9 picture tubes. The circuit provides a DC driven vertical deflection output circuit, operating as a highly efficient class G system. Due to the full bridge output circuit the deflection coils can be DC coupled.
The IC is constructed in a Low Voltage DMOS process that combines Bipolar, CMOS and DMOS devices. MOS transistors are used in the output stage because of the absence of second breakdown.
Features :
-Few external components
-High efficient fully
-Short rise and fall time of the vertical flyback switch
-Guard circuit
-Temperature (thermal) protection
-High EMC because of common mode inputs
Pinning
Pin | Symbol | Description | |
1 | Vi(pos) | input voltage (positive) | |
2 | Vi(neg) | input voltage | |
|
| (negative) | |
|
|
|
|
3 | Vp | supply voltage | |
4 | VOB | output voltage B | |
5 | GND | ground | |
6 | Vflb | flyback supply voltage | |
7 | VOA | output voltage A | |
8 | VO(guard) | guard output voltage | |
9 | VM | input measuring | |
|
| resistor |
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