STK73903

Thick Film Hybrid IC INCHANGE STK73902 Self-excitation Type Feedback Control Switching Regulator Features ﹒Power MOSFET devices ﹒Feedback control for high output voltage precision ﹒Driver circuit on-chip ﹒Overcurrent protection circuit on-chip ﹒Pin compatible with all other devices in the same series of devices with 110 to 280W power ratings ﹒Higher oscillator frequency allows the use of smaller pulse transformers Package Dimensions unit:mm Applications ﹒CRT/CTV power supplies ﹒Office automation equipment power supplies Block Diagram Pin Functions (1) (2) (3) (4) (5) (6) Amplifier circuit control Ground TR1 gate Drive voltage input Starting voltage input OCP setting level input (7) OCP input-voltage dependency detection input (8) TR1 source (9) TR1 source (11) TR1 drain (12) TR1 drain Thick Film Hybrid IC Specifications INCHANGE Maximum Ratings at Ta=25℃, Tc=25℃ unless otherwise specified Parameter Operating substrate temperature AC input voltage Operating temperature Storage temperature Maximum output power (TR1) Drain current Pulse drain current Drain reverse current Gate-source voltage Allowable power dissipation Chip junction temperature (ZD1) Allowable power dissipation Chip junction temperature PZD1 Tj(ZD1)max 500 125 mW ℃ Symbol TC max VAC Topr Tstg Wo max Specified test circuit VO=135V Conditions Recommended value is 105℃ Specified test circuit Ratings 115 140 -10 to+85 -30 to+115 180 UNIT ℃ Vrms ℃ ℃ W ID ID(Pulse) IDR VGSS PD Tj max 10 35 10 ±30 100 150 A A A V W ℃ Recommended operating ranges at Ta=25℃ Parameter Pin 4 input voltage Oscillator frequency Symbol V4 fOSC Conditions Ratings ±8 to±24 20 to 100 UNIT V kHz Operating characteristics at Ta=25℃,Tc=25℃ ( unless otherwise specified,specified test circuits) Parameter (TR1) Drain-source breakdown voltage Gate-source cutoff voltage ON resistance Input capacitance (ZD1) Zener voltage VZ IZ=5mA 23.7 26.3 V V(BR)DSS VGS(off) RDS(on) Ciss ID=1mA,VGS=0V ID=1mA,VDS=10V ID=5A,VGS=10V VDS=25V,VGS=0V,f=1MHz 500 2.5 3.5 0.6 1400 5.0 0.9 V V Ω pF Symbol Conditions min Typ max UNIT Thick Film Hybrid IC Series organization These devices form a series with varying output power ratings Type No. STK73902 STK73903 STK73904 STK73905 STK73906 STK73907 STK73908 STK73909 900 -30 to +115 +115 +150 500 VDSS [V] Tstg [℃] Maximum ratings TC max Tj max [℃ ] [℃] ID [A] 6.0 10.0 12.0 15.0 3.0 5.0 6.0 8.0 170 to 264 85 to 132 Input voltage [V] INCHANGE Operating characteristics ON resistance Output power [W] [Ω] 110 180 210 280 110 180 210 280 1.4 0.6 0.55 0.3 5.0 3.0 2.0 1.2