isocom components ltd unit 25b, park view road west, park view industrial estate, brenda road hartlepool, cleveland, ts25 1yd tel: (01429) 863609 fax :(01429) 863581 7/12/00 db92178-aas/a2 description the H24B series of optically coupled isolators consist of infrared light emitting diode and npn silicon photo darlington in a plastic package. features l 4 pin dual-in-line package l high current transfer ratio available (H24B1 = 1000% min.) l high isolation voltage (3.75kv rms ,5.3kv pk ) l no base connection gives improved common mode rejection applications l dc motor controllers l industrial systems controllers l signal transmission between systems of different potentials and impedances 4 pin optically coupled isolator photodarlington output absolute maximum ratings (25c unless otherwise specified) storage temperature -40c to + 85c operating temperature -25c to + 85c lead soldering temperature (1/16 inch (1.6mm) from case for 10 secs) 260c input diode forward current 50ma reverse voltage 4v power dissipation 75mw output transistor collector-emitter voltage bv ceo 30v emitter-collector voltage bv eco 6v collector current i c 50ma power dissipation 75mw H24B1, H24B2, H24B3 2 1 4 3 + e d + 1 2 4 3 dimensions in mm 0.5 6.35 0.63 0.63 8.89 7.62 2.54 9.53 7.62 isocom inc 1024 s. greenville ave, suite 240, allen, tx 75002 usa tel: (214) 495-0755 fax: (214) 495-0901 e-mail info@isocom.com http://www.isocom.com
db92178-aas/a2 parameter min typ max units test condition input forward voltage (v f ) 1.2 1.7 v i f = 50ma reverse voltage (v r ) 3 v i r = 1 m a reverse current (i r ) 10 m a v r = 4v output collector-emitter breakdown (bv ceo ) 30 v i c = 1ma ( note 2 ) emitter-collector breakdown (bv eco ) 6 v i e = 100 m a collector-emitter dark current (i ceo ) 100 na v ce = 10v coupled current transfer ratio (ctr) (note 2) H24B1 1000 % 5ma i f , 1.5v v ce H24B2 400 % 5ma i f , 1.5v v ce H24B3 750 % 5ma i f , 1.5v v ce collector-emitter saturation voltagev ce(sat) 1.0 v 5ma i f , 2ma i c input to output isolation voltage v iso 3750 v rms see note 1 5300 v pk see note 1 input-output isolation resistance r iso 5x10 10 w v io = 500v (note 1) turn-on time ton 105 m s v ce = 10v, turn-off time toff 60 m s i c = 10ma,r l = 100 w turn-on time ton 10 m s v cc = 5v, turn-off time toff 700 m s i f = 10ma,r l = 1k w note 1 measured with input leads shorted together and output leads shorted together. note 2 special selections are available on request. please consult the factory. 7/12/00 electrical characteristics ( t a = 25c unless otherwise noted )
db92178-aas/a2 7/12/00 25 -25 0 25 50 75 100 125 ambient temperature t a ( c ) 75 0 100 ambient temperature t a ( c ) collector power dissipation p c (mw) 60 30 20 10 0 40 50 -25 0 25 50 75 100 125 collector power dissipation vs. ambient temperature forward current vs. ambient temperature 50 forward current i f (ma) 1 2 5 10 20 50 0 0.8 1.2 1.6 2.0 2.4 0.4 2.8 normalized output current normalized output current vs. forward current forward current i f (ma) 0.1 1 10 100 1 10 normalized output current normalized output current vs. collector-emitter voltage collector-emitter voltage v ce ( v ) 0.1 0.01 0 0.5 1.0 1.5 i f = 5ma v ce = 1.5v normalized output current vs. ambient temperature normalized output current ambient temperature t a ( c ) -25 0 25 50 75 100 -25 0 25 50 75 100 ambient temperature t a ( c ) collector-emitter saturation voltage v ce(sat) (v) collector-emitter saturation voltage vs. ambient temperature 0.60 0.65 0.70 0.75 0.80 0.85 0.90 0.95 i f = 5ma i c = 2ma 3.2 normalized to : i f = 5ma v ce = 1.5v t a = 25c pulsed pw = 100 m s prr = 100pps normalized to : i f = 5ma v ce = 1.5v t a = 25c pulsed pw = 100 m s prr = 100pps 0.02 0.04 0.2 0.4 2 4 i f = 10ma 5ma 1ma 2ma
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