KKA8356 Datasheet, PDF (1/5 Pages) KODENSHI KOREA CORP. – DC-coupled vertical deflection circuit

TECHNICAL DATA
DC-coupled vertical deflection circuit
The KKA8356 is a power circuit for use in 90^o and 110^ocolour deflection systems for field frequencies
of 50 to 120 Hz. The circuit provides a DC driven vertical deflection output circuit, operating as a
highly efficient class G system.
FEATURES
• Few external components
• Highly efficient fully DC-coupled vertical output bridge circuit
• Vertical flyback switch
• Guard circuit
• Protection against:
– short-circuit of the output pins (7 and 4)
– short-circuit of the output pins to V_P
• Temperature (thermal) protection
• High EMC immunity because of common mode inputs
A guard signal in zoom mode
PINNING
SYMBOL
I_drive(pos)
I_drive(neg)
V_P
V_O(B)
GND
V_FB
V_O(A)
V_O(guard)
V_I(fb)
PIN DESCRIPTION
1 input power-stage (positive); includes I_I(sb) signal bias
2 input power-stage (negative);includes I_I(sb) signal bias
3 operating supply voltage
4 output voltage B
5 ground
6 input flyback supply voltage
7 output voltage A
8 guard output voltage
9 input feedback voltage
BLOCK DIAGRAM
1