dionics, inc. 65 rushmore street westbury, ny 11590 phone: (516) 997-7474 fax: (516) 997-7479 website: www.dionics-usa.com opto-isolated phot ovoltaic iso-gate tm mosfet drivers dig-11-06-030 dig-11-06-150 dig-11-08-050 dig-12-06-025 dig-12-08-010 dig-12-08-045 dig-12-06-100 dig-12-06-250 features: ? completely isolated voltage signal generation ? dielectrically isolated ? logic circuit compatibility ? high open circuit voltage ? high operating temperature ? fast response time ? high isolation resistance ? excellent input/output linearity ? self limiting gate voltage applications: ? gate drive for mos devices ? gate drive for scr ? solid-state relays ? interface between logic circuits & external loads ? a.t.e. (automatic test equipment) ? switching equipment ? isolation amplifiers ? load control from microprocessor i/o ports ? thermocouple open detectors description: the photovoltaic mosfet driver is a state-of- the-art, optical ly coupled floating power source used primarily to control mosfets when electrical isolation between i nput and output is required. the iso-gate tm is a state-of-the-art opto- isolator incorporating dionics? photovoltaic (pv) diode a rrays and an infrared led. the diode array is a unique i.c. consisting of series-connected photovoltaic diodes. the diod es are completely isolated from each other and from their common substrate by means of sio 2 dielectric isolation (di). these photovoltaic output chips are electrically isolated but optically coupled to the led. the typical input circuit to the led is a limiting resistor connected in series with the led. when activated, the led emits infrared light towards the photovolta ic diode array, which then responds by generating an open circuit voltage (voc). this voc is floating and is therefore completely is olated. the voc value depends on the led input drive and load impedance. dionics, inc offers a wide variety of package styles including low-cost plastic mini-dip?s, high reliability to-5 metal cans, 8-pin ceramic side brazed dip?s and ceram ic chip carriers for hybrid manufacturers. other custom packages and custom designs are also available. o group i : dig-11-06-030; dig-11-06-150; dig-11-08-050 . o group ii : dig-12-06-025; dig-12-06-100; dig-12- 06-250; dig-12-08-010; dig-12-08-045 . ? package layout: 0.025 0.185 0.250 dig-11 06-030 xxxx 0.070 0.380 0.020 0.020 0.185 0.250 0.025 dig-12 08-045 xxxx 0.070 0.380 08/2004 ? pin designation pin number group i group ii 1 input + input + 2 input - input - 3 not connected not connected 4 not connected not connected 5 not connected output1+ 6 output + output1- 7 not connected output2+ 8 output - output2-
group i and group ii equivalent circuits: 8 3 2 1 7 6 led pv 2 1 pv 8 5 led pv 4 7 6 3 group i group ii * note: dig-12-06-100 and dig-12-06-250 are rated @ 3.4 v max. ? individual channel electrical characteristics (t a =25 0 c) model numbers dig - 12-08-010 12-06-025 12-08-045 12-06-100 12-06-250 11-06-030 11-08-050 11-06-150 unit parameter symbol min. typ. min. typ. min. typ. min. typ. min. typ. min. ty p. min. typ. min. typ. open circuit voltage v oc i led = 2ma 8.0 6.5 8.0 6.0 6.0 5.5 9.0 6.0 v i led = 10ma 8.0 9.0 6.5 7.5 8.5 9.0 6.5 7.0 6.5 7.3 6.0 6.5 7.5 10.0 6.5 7.0 v i led = 30ma 9.0 10.0 7.0 6.3 9.5 10.0 7.5 7.8 7.5 8.0 6.5 7.0 8.5 11.0 7.5 8.0 v short circuit current i sc i led = 2ma 0.5 1.0 1.0 2.0 3.0 1.1 2.0 3.0 a i led = 10ma 1.35 3.0 3.0 6.0 4.0 8.0 8.0 12.0 12.5 25.0 1.0 7.0 4.0 13.0 10.0 18.0 a i led = 30ma 4.0 9.0 9.0 20.0 12.0 25. 0 30.0 40.0 37.5 75.0 3.5 20.0 12.0 40.0 30.0 55.0 a turn-on time i f = 50 ma; c = 10pf p.w = 100us; t on - 3.0 - 10.0 - 8.0 - 3.0 - 3.0 - 8.0 - 5.0 - 3.0 s f =1khz; r s = 10m ? temp. coefficient - -100 - -80 - -100 - -80 - -80 - -40 - -50 - -40 mv/ 0 c (channels in series) isolation voltage v iso i iso = 50 a @ 2 sec 2500 2500 vdc operating temp. t op -50 0 c to +100 0 c -50 0 c to +80 0 c (channels in series) turn-off time t off i f = 50 ma; c = 10pf the photovoltaic array stops generating current w ithin one microsecond of the trailing edge p.w = 100us; of led current the discharge time is solely dependent upon discharge circuitry and capacitive load. f =1khz; r s = 10m ? ? absolute maximum ratings (t a = 25 0 c) led forward current led forward current led forward voltage led reverse current led reverse voltage output forward voltage lead soldering time storage temperature power dissipation steady state peak 10% duty cycle i f = 20ma v r = 3v i f = 10a at 260 0 c 100 ma 250 ma 1.7v* 100a 5v 20v 10 sec -50 to 125 0 c 150 mw
typical applications 1. power mosfet photovoltaic spst n/o dc relays 5 pv 2 rs 1 output + input - output - enh. led pv 7 dig-12-06-250 6 input + 8 2. power mosfet spdt photovoltaic spst n/o ac-dc relays: enh. 7 pv 8 input - led pv 2 6 5 rs output dig-12-06-250 enh. 1 output input + 3. power mosfet photovoltaic spst n/o re lays with high speed turn-off: t.o cir dig-12-06-250 input - 6 pv d1 output - 8 1 7 5 enh. led pv 2 r output + enh. input + t.o cir
4. power mosfet photovoltaic spst n/o relays with opto-transitor for high speed turn-off: 6 output - 2 input + input - 1 controller input led pv enh. dig-11-06-150 output + 8 5. open thermocouple detector: 8 led pv input + thermo couple 6 1 input - 2 open thermo couple output v ref dig-11-06-030 6. isolation amplifier: - + lm324 50k 1m led pv vin 0.5v 100k +10v - + lm324 6 vout 8 7 5 1 1m pv 27 ohm 2
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