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KODENSHI KOREA

KKA8351 Datasheet Preview

KKA8351 Datasheet

DC-COUPLED VERTICAL DEFLECTION CIRCUIT

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TECHNICAL DATA
DC-COUPLED VERTICAL DEFLECTION CIRCUIT
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 VP
Temperature (thermal) protection
High EMC immunity because of common mode
inputs
A guard signal in zoom mode.
GENERAL DESCRIPTION
The KKA8351 is a power circuit for use in 90°
and 110°
colour 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.
QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS MIN. TYP. MAX. UNIT
DC supply
Vp
Iq
Vertical circuit
supply voltage
quiescent supply current
9 - 25 V
- 30 - mA
l o(p-p)
I diff(p-p)
V diff(p-p)
Flyback switch
output current
(peak-to-peak value)
differential input current (peak-
to-peak value)
differential input voltage
(peak-to-peak value)
— —3
A
— 600 — µA
1.5 1.8
V
IM peak output current
Vfb flyback supply voltage
Thermal data (in accordance with IEC 747-1)
note 1
- - ±1.5 A
- - 50 V
- - 60 V
T stg storage temperature
-55 -
+150 °C
lamb operating ambient temperature
-25 -
+75 °C
Tvj virtual junction temperature
- - 150 °C
Note
A flyback supply voltage of >50 V up to 60 V is allowed in application. A 220 nF capacitor
in series with a 22 resistor (dependent on Io and the inductance of the coil) has to be
connected between pin 7 and ground. The decoupling capacitor of VFB has to be
connected between pin 6 and pin 3. The supply voltage line must have a resistance of 33
.
1




KODENSHI KOREA

KKA8351 Datasheet Preview

KKA8351 Datasheet

DC-COUPLED VERTICAL DEFLECTION CIRCUIT

No Preview Available !

www.DataSheet4U.com
KKA8351
BLOCK DIAGRAM.
VP
3
+VP
VO(guard)
8
CURRENT
SOURCE
VFB
6
KKA8351
Idrive(pos)
1
Idrive(neg)
2
+v
-IS
+IT
-IT
+vP
+IS
+VP
+VO(A)
7
VO(A)
9
VI(fb)
-VO(B)
4
VO(B)
5
GND
2


Part Number KKA8351
Description DC-COUPLED VERTICAL DEFLECTION CIRCUIT
Maker KODENSHI KOREA
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KKA8351 Datasheet PDF






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