Daewoo Understanding TDA8356 Pin Voltage for CRT Television Deflection Systems

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TDA8356 (DC-coupled vertical deflection circuit)

(1) General Description

The TDA8356 is power circuit for use in 90 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

(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

9	V I(fb)	input feedback voltage

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