20
TDA8351 (DC-coupled vertical deflection circuit)
(1) General Description
and 110 color deflection systems for field frequencies of 50 to 120 Hz.
The circuit provides a DC driven vertical deflection output circuit, operating as a high efficient class G system.
(2) Feature
•
High efficient fully DC-coupled vertical output bridge circuit
•
Vertical fly-back switch
•
Guard circuit
•
Protection against : - short circuit of the output pins (7 and 4)
- short circuit of the output pins to Vp
•
Temperature (thermal) protection
•
High EMC immunity because of common mode inputs
•
A guard signal in zoom mode.
(3) Block Diagram
(4) Pin Description
PIN SYMBOL DESCRIPTION
1 I drive (pos) input power stage (positive); include Ii(sb) signal bias
2 I drive (neg) input power stage (negative); include Ii(sb) signal bias
3 V p operating supply voltage
4 V o(b) output voltage B
5 GND ground
6 V fb input fly-back supply voltage
7 V o(a) output voltage A
8 V o(guard) guard output voltage (Not used)
9 V I(fb) input feedback voltage
Comments to this Manuals