Thick Film Hybrid IC INCHANGE STK730-010 Self-excitation Type Semi-Regulated Switching Regulator Features ﹒Power MOSFET devices ﹒Ideal for semi-regulated control switching supplies ﹒Error detection circuit on-chip (40.5±0.5V set reference voltage) ﹒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) (7) (8) (9) (11) (12) Vref(40.5V typ) input Error detection level Ground Drive voltage input TR1 gate Amplifier circuit control OCP setting level input TR1 source TR1 source TR1 drain TR1 drain Thick Film Hybrid IC INCHANGE Specifications Maximum Ratings at Ta=25℃, Tc=25℃ unless otherwise specified Parameter Symbol Conditions Ratings UNIT Operating substrate temperature TC max Recommended value is 105℃ 115 ℃ AC input voltage VAC Specified test circuit 140 Vrms Operating temperature Topr -10 to+85 ℃ Storage temperature Tstg -30 to+115 ℃ Maximum output power Wo max 110 W ID 6 A ID(Pulse) 20 A Specified test circuit VO=135V (TR1) Drain current Pulse drain current Drain reverse current Gate-source voltage Allowable power dissipation Chip junction temperature Thermal resistance 6 A VGSS ±30 V PD 78.1 W Tj max 150 ℃ θj-c 1.6 ℃/W PZD1 500 mW IDR (ZD1) Allowable power dissipation Chip junction temperature Tj(ZD1)max 125 ℃ Thermal resistance θj-c(ZD1) 0.2 ℃/mW Ratings UNIT ±8 to±24 V 20 to 120 kHz Allowable operating ranges at Ta=25℃ Parameter Symbol Pin 4 input voltage V4 Oscillator frequency fOSC Conditions Operating characteristics at Ta=25℃Tc=25℃ ( unless otherwise specified,specified test circuits) Parameter Symbol Conditions Output voltage setting IIN=8mA Output voltage temperature coefficient TC=0 to 105℃, IIN=8mA min Typ max UNIT 40.0 40.5 41.0 V mV/℃ 7 (TR1) Drain-source breakdown voltage V(BR)DSS ID=10mA,VGS=0V 500 Gate-source cutoff voltage VGS(off) ID=1mA,VDS=10V 2.0 ON resistance RDS(on) ID=2.5A,VGS=10V 1.4 Ciss VDS=10V,VGS=0V,f=1MHz 800 VZ IZ=5mA Input capacitance V 3.0 V 1.8 Ω pF (ZD1) Zener voltage 23.7 26.3 V Thick Film Hybrid IC INCHANGE Series organization These devices form a series with varying output power ratings Device VDSS [V] Tstg [℃] Maximum ratings TC max Tj max [℃] [℃] ID [A] Operating characteristics ON resistance Output power [W] [Ω] Input voltage [V] STK730-010 6.0 110 1.4 STK730-020 8.0 145 0.8 180 0.7 12.0 210 0.55 15.0 280 0.3 3.0 110 5.0 180 3.0 210 2.0 280 1.2 STK730-030 500 10.0 STK730-040 -30 to +115 STK730-050 STK730-060 STK730-070 STK730-080 STJ730-090 900 +115 +150 5.0 6.0 8.0 85 to 132 170 to 264