Vertical Deflection and Guard Amplifier
TECHNICAL DATA
DC-COUPLED VERTICAL DEFLECTION CIRCUIT
FEATURES
• • • • • • • • Few external components Highly efficient...
Description
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 ILA8351 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 DC supply Vp Iq Vertical circuit l o(p-p) I diff(p-p) V diff(p-p) Flyback switch IM Vfb output current (peak-to-peak value) differential input current (peakto-peak value) differential input voltage (peak-to-peak value) peak output current supply voltage quiescent supply current PARAMETER
CONDITIONS
flyback supply voltage
Thermal data (in accordance with IEC 747-1) T stg lamb Tvj
w
w
w
t a .D
S a
e h
U 4 t e
MIN. 9 — — — -
.c
m o
MAX. UNIT 25 V mA 3 — 1.8 A µA V
TYP.
30
— 600 1.5
±1.5 50 60
A V V
note 1
-
storage temperature operating ambient temperature virtual junction temperature
-55 -25 -
-
+150 +75 150
°C °C °C
1
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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 Ω ...
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