1 power transistors 2sc3977, 2sc3977a silicon npn triple diffusion planar type for high breakdown voltage high-speed switching n features l high-speed switching l high collector to base voltage v cbo l wide area of safe operation (aso) l satisfactory linearity of foward current transfer ratio h fe l full-pack package which can be installed to the heat sink with one screw n absolute maximum ratings (t c =25?c) parameter collector to base voltage collector to emitter voltage collector to emitter voltage emitter to base voltage peak collector current collector current base current collector power dissipation junction temperature storage temperature symbol v cbo v ces v ceo v ebo i cp i c i b p c t j t stg ratings 900 1000 900 1000 800 7 2 1 0.3 30 2 150 C55 to +150 unit v v v v a a a w ?c ?c 2sc3977 2sc3977a 2sc3977 2sc3977a t c =25 c ta=25 c n electrical characteristics (t c =25?c) parameter collector cutoff current emitter cutoff current collector to emitter voltage forward current transfer ratio collector to emitter saturation voltage base to emitter saturation voltage transition frequency turn-on time storage time fall time symbol i cbo i ebo v ceo h fe1 h fe2 v ce(sat) v be(sat) f t t on t stg t f conditions v cb = 900v, i e = 0 v cb = 1000v, i e = 0 v eb = 7v, i c = 0 i c = 10ma, i b = 0 v ce = 5v, i c = 0.1a v ce = 5v, i c = 0.2a i c = 0.2a, i b = 0.04a i c = 0.2a, i b = 0.04a v ce = 10v, i c = 0.05a, f = 1mhz i c = 0.2a, i b1 = 0.04a, i b2 = C 0.08a, v cc = 250v min 800 8 3 typ 15 max 50 50 50 1.5 1.5 0.7 2.5 0.3 unit m a m a v v v mhz m s m s m s 2sc3977 2sc3977a unit: mm 1:base 2:collector 3:emitter toC220 full pack package(a) 10.0 0.2 5.5 0.2 7.5 0.2 16.7 0.3 0.7 0.1 14.0 0.5 solder dip 4.0 0.5 +0.2 ?.1 1.4 0.1 1.3 0.2 0.8 0.1 2.54 0.25 5.08 0.5 2 13 2.7 0.2 4.2 0.2 4.2 0.2 f 3.1 0.1
2 power transistors 2sc3977, 2sc3977a p c ta i c v ce v ce(sat) i c v be(sat) i c h fe i c f t i c c ob v cb t on , t stg , t f i c area of safe operation (aso) 0 160 40 120 80 140 20 100 60 0 40 30 10 20 (1) (3) (4) (2) (1) t c =ta (2) with a 100 100 2mm al heat sink (3) with a 50 50 2mm al heat sink (4) without heat sink (p c =2w) ambient temperature ta ( ?c ) collector power dissipation p c ( w ) 012 10 8 26 4 0 1.2 1.0 0.8 0.6 0.4 0.2 t c =25?c 350ma 300ma 250ma 200ma 150ma 100ma 80ma 60ma 40ma 20ma i b =400ma collector to emitter voltage v ce ( v ) collector current i c ( a ) 0.01 0.1 1 10 0.03 0.3 3 0.01 0.03 0.1 0.3 1 3 10 30 100 i c /i b =5 t c =100?c 25?c ?5?c collector current i c ( a ) collector to emitter saturation voltage v ce(sat) ( v ) 0.01 0.1 1 10 0.03 0.3 3 0.1 100 10 1 0.3 3 30 i c /i b =5 t c =?5?c 25?c 100?c collector current i c ( a ) base to emitter saturation voltage v be(sat) ( v ) 0.01 0.1 1 10 0.03 0.3 3 1 1000 100 10 3 30 300 v ce =5v t c =?5?c 25?c 100?c collector current i c ( a ) forward current transfer ratio h fe 0.001 0.01 0.1 1 0.003 0.03 0.3 0.1 100 10 1 0.3 3 30 v ce =10v f=1mhz t c =25?c collector current i c ( a ) transition frequency f t ( mhz ) 1 3 10 30 100 1 1000 100 10 3 30 300 i e =0 f=1mhz t c =25?c collector to base voltage v cb ( v ) collector output capacitance c ob ( pf ) 0 0.8 0.2 0.6 0.4 0.01 0.03 0.1 0.3 1 3 10 30 100 t stg t f t on pulsed t w =1ms duty cycle=1% i c /i b =5 (2i b1 =? b2 ) v cc =200v t c =25?c collector current i c ( a ) switching time t on ,t stg ,t f ( m s ) 1 10 100 1000 3 30 300 0.001 0.003 0.01 0.03 0.1 0.3 1 3 10 non repetitive pulse t c =25?c t=10ms 0.3s collector to emitter voltage v ce ( v ) collector current i c ( a )
3 power transistors 2sc3977, 2sc3977a area of safe operation, reverse bias aso reverse bias aso measuring circuit r th(t) t 10 ? 10 10 ? 10 ? 10 ? 110 3 10 2 10 4 0.1 1 10 100 10000 1000 note: r th was measured at ta=25?c and under natural convection. (1) p t =10v 0.2a (2w) and without heat sink (2) p t =10v 1.0a (10w) and with a 100 100 2mm al heat sink (1) (2) time t ( s ) thermal resistance r th (t) ( ?c/w ) 0 1600 400 1200 800 1400 200 1000 600 0 1.6 1.2 0.4 1.0 1.4 0.8 0.2 0.6 i c l coil =100 h i c /i b =5 (i b1 =? b2 ) t c =25?c 2sc3977 2sc3977a collector to emitter voltage v ce ( v ) collector current i c ( a ) l coil i c i b1 v in t w ? b2 v clamp v cc t.u.t
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