KKA8351

www.DataSheet4U.com 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 DC supply Vp Iq Vertical circuit l o(p-p) I diff(p-p) V diff(p-p) Flyback switch IM Vfb peak output current flyback supply voltage note 1 Thermal data (in accordance with IEC 747-1) T stg lamb Tvj storage temperature operating ambient temperature virtual junction temperature -55 -25 +150 +75 150 °C °C °C ±1.5 50 60 A V V output current (peak-to-peak value) differential input current (peakto-peak value) differential input voltage (peak-to-peak value) — — — — 600 1.5 3 — 1.8 A µA V supply voltage quiescent supply current 9 30 25 V mA PARAMETER CONDITIONS MIN. TYP. MAX. UNIT 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 resistor (dependent on Io and the inductance of the coil) has to be con...