KKA8351 Datasheet | Kodenshi AUK Group

FEATURES - - - - - - - - Few external ponents 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 mon 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 m A PARAMETER CONDITIONS MIN. TYP. MAX. UNIT Note A flyback supply voltage of >50 V up to 60 V is allowed in application. A 220 n F capacitor in series with a 22 Ω 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 Ω. .. BLOCK DIAGRAM. VP VO(guard) VFB 3 +VP CURRENT SOURCE +VP 7 VO(A) +VO(A) Idrive(pos) -IS +IT -IT 9 VI(fb) Idrive(neg) 2 +IS +v +v P 4 VO(B) -VO(B) 5 GND .. PINNING SYMBOL I drive(pos) l drive(neg) Vp VO(B) GND Vfb Vo(a) Vo(guard) V|(fb) PIN 1 2 3 4 5 6 7 8 9 DESCRIPTION input power-stage (positive); includes li(sb) signal bias input power-stage (negative);...