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| Thick Film Hybrid IC INCHANGE STK73902 Self-excitation Type Feedback Control Switching Regulator Features (c)q (c)q (c)q (c)q (c)q (c)q 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 (c)q CRT/CTV power supplies (c)q Office automation equipment power supplies Block Diagram CHA IN E SEM NG OND IC Pin Functions (1) (2) (3) (4) (5) (6) TOR UC 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 Maximum Ratings at Ta=25ae , Tc=25ae 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 Symbol TC max VAC Topr Tstg Wo max Specified test circuit VO=135V INCHANGE unless otherwise specified Conditions Ratings 115 140 -10 to+85 -30 to+115 180 ae W UNIT ae Vrms ae Recommended value is 105ae Specified test circuit ID ID(Pulse) IDR VGSS PD Tj max A 10 35 10 30 100 150 ae A A A V W 500 125 mW ae Recommended operating ranges at Ta=25ae Pin 4 input voltage Oscillator frequency CHA Operating characteristics at Ta=25ae IN Parameter Symbol V(BR)DSS VGS(off) RDS(on) Ciss Parameter E SEM NG V4 fOSC Symbol OND IC Conditions TOR UC Ratings 8 toA A 24 20 to 100 UNIT V kHz ,Tc=25ae Conditions min Typ max UNIT ( unless otherwise specified,specified test circuits) (TR1) Drain-source breakdown voltage Gate-source cutoff voltage ON resistance Input capacitance (ZD1) Zener voltage VZ IZ=5mA 23.7 26.3 V 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 | pF V V 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 [ae ] Maximum ratings TC max Tj max [ae ] [ae ] 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] [| ] 110 180 210 280 110 180 210 280 1.4 0.6 0.55 0.3 5.0 3.0 2.0 1.2 CHA IN E SEM NG OND IC TOR UC |
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