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ac/dc to logic interface optocouplers technical data hcpl-3700 hcpl-3760 description the hcpl-3700 and hcpl-3760 are voltage/current threshold detection optocouplers. the hcpl-3760 is a low-current version of the hcpl-3700. to obtain lower current operation, the hcpl-3760 uses a high- efficiency algaas led which provides higher light output at lower drive currents. both devices utilize threshold sensing input buffer ics which permit control of threshold levels over a wide range of input voltages with a single external resistor. features ? standard (hcpl-3700) and low input current (hcpl-3760) versions ? ac or dc input ? programmable sense voltage ? hysteresis ? logic compatible output ? thresholds guaranteed over temperature ? thresholds independent of led optical parameters ? recognized under ul 1577 and csa approved for dielectric withstand proof test voltage of 2500 vac, 1 minute applications ? limit switch sensing ? low voltage detector ? 5 v-240 v ac/dc voltage sensing ? relay contact monitor ? relay coil voltage monitor ? current sensing ? microprocessor interfacing caution: it is advised that normal static precautions be taken in handling and assembly of this component to prevent damage and/or degradation which may be induced by esd. the input buffer incorporates several features: hysteresis for extra noise immunity and switching immunity, a diode bridge for easy use with ac input signals, and internal clamping functional diagram 1 2 3 4 8 7 6 5 ac dc+ dc- ac v cc v o gnd truth table (positive logic) input h l output l h nc
2 diodes to protect the buffer and led from a wide range of over- voltage and over-current transients. because threshold sensing is done prior to driving the led, variations in optical coupling from the led to the detector will have no effect on the threshold levels. the hcpl-3700's input buffer ic has a nominal turn on threshold of 2.5 ma (i th +) and 3.7 volts (v th +). the buffer ic for the hcpl-3760 was redesigned to permit a lower input current. the nominal turn on threshold for the hcpl-3760 is 1.2 ma (i th +) and 3.7 volts (v th +). the high gain output stage features an open collector output providing both ttl compatible saturation voltages and cmos compatible breakdown voltages. by combining several unique functions in a single package, the user is provided with an ideal component for industrial control computer input boards and other applications where a predeter- mined input threshold level is desirable. ordering information specify part number followed by option number (if desired) example hcpl-3700#xxx 300 = gull wing surface mount option 500 = tape/reel package option (1 k min.) option data sheets available. contact your agilent sales representative or authorized distributor for information. schematic
3 package outline drawings standard dip package gull wing surface mount option 300 9.40 (0.370) 9.90 (0.390) 1.78 (0.070) max. 1.19 (0.047) max. a xxxx yyww date code 0.76 (0.030) 1.40 (0.056) 2.28 (0.090) 2.80 (0.110) 0.51 (0.020) min. 0.65 (0.025) max. 4.70 (0.185) max. 2.92 (0.115) min. dimensions in millimeters and (inches). 5 6 7 8 4 3 2 1 0.20 (0.008) 0.33 (0.013) 6.10 (0.240) 6.60 (0.260) 5?typ. 7.36 (0.290) 7.88 (0.310) 1 2 3 4 8 7 6 5 ac ac dc+ dc- gnd v cc nc v o pin one type number ul recognition ur 0.635 ?0.25 (0.025 ?0.010) 12?nom. 0.20 (0.008) 0.33 (0.013) 9.65 ?0.25 (0.380 ?0.010) 0.635 ?0.130 (0.025 ?0.005) 7.62 ?0.25 (0.300 ?0.010) 5 6 7 8 4 3 2 1 9.65 ?0.25 (0.380 ?0.010) 6.350 ?0.25 (0.250 ?0.010) 1.016 (0.040) 1.194 (0.047) 1.194 (0.047) 1.778 (0.070) 9.398 (0.370) 9.906 (0.390) 4.826 (0.190) typ. 0.381 (0.015) 0.635 (0.025) pad location (for reference only) 1.080 ?0.320 (0.043 ?0.013) 4.19 (0.165) max. 1.780 (0.070) max. 1.19 (0.047) max. 2.540 (0.100) bsc dimensions in millimeters (inches). tolerances (unless otherwise specified): lead coplanarity maximum: 0.102 (0.004) xx.xx = 0.01 xx.xxx = 0.005 a xxxx yyww date code type number ul recognition ur molded
4 maximum solder reflow thermal profile 240 d t = 115?c, 0.3?c/sec 0 d t = 100?c, 1.5?c/sec d t = 145?c, 1?c/sec time e minutes temperature e ?c 220 200 180 160 140 120 100 80 60 40 20 0 260 123 456789101112 (note: use of non-chlorine activated fluxes is recommended.) regulatory information the hcpl-3700/60 has been approved by the following organizations: ul recognized under ul 1577, component recognition program, file e55361. csa approved under csa component acceptance notice #5, file ca 88324.
5 insulation and safety related specifications parameter symbol value units conditions min. external air gap l(io1) 7.1 mm measured from input terminals to output terminals, (external clearance) shortest distance through air min. external tracking l(io2) 7.4 mm measured from input terminals to output terminals, path (external creepage) shortest distance path along body min. internal plastic 0.08 mm through insulation distance, conductor to conductor, gap (internal clearance) usually the direct distance between the photoemitter and photodetector inside the optocoupler cavity tracking resistance cti 200 v din iec 112/vde 0303 part 1 (comparative tracking index) isolation group iiia material group (din vde 0110, 1/89, table 1) option 300 C surface mount classification is class a in accordance with cecc 00802. absolute maximum ratings (no derating required up to 70 c) parameter symbol min. max. units note storage temperature t s -55 125 c operating temperature t a -40 85 c lead soldering cycle temperature 260 c1 time 10 s input current average 50 2 surge i in 140 ma 2, 3 transient 500 input voltage (pins 2-3) v in -0.5 v input power dissipation p in 230 mw 4 total package power dissipation p t 305 mw 5 output power dissipation p o 210 mw 6 output current average i o 30 ma 7 supply voltage (pins 8-5) v cc -0.5 20 v output voltage (pins 6-5) v o -0.5 20 v solder reflow temperature profile see package outline drawings section recommended operating conditions parameter symbol min. max. units note supply voltage v cc 218 v operating temperature t a 070 c operating frequency f 0 4 khz 8
6 parameter sym. device min. typ. [9] max. units conditions fig. note input threshold i th+ hcpl-3700 1.96 2.5 3.11 ma v in = v th+ ; v cc = 4.5 v; 2, 3 14 hcpl-3760 0.87 1.2 1.56 i th- hcpl-3700 1.00 1.3 1.62 v in = v th- ; v cc = 4.5 v; hcpl-3760 0.43 0.6 0.80 input dc v th+ 3.35 3.7 4.05 v v in = v 2 - v 3 ; pins 1 & 4 open threshold (pins 2, 3) v cc = 4.5 v; v o = 0.4 v; voltage i o 4.2 ma v th- 2.01 2.6 2.86 v v in = v 2 - v 3 ; pins 1 & 4 open v cc = 4.5 v; v o = 2.4 v; i o 100 m a ac v th+ 4.23 4.9 5.50 v v in = |v 1 - v 4 |; 14, 15 (pins 1, 4) pins 2 & 3 open v cc = 4.5 v; v o = 0.4 v; i o 4.2 ma v th- 2.87 3.7 4.20 v v in = |v 1 - v 4 |; pins 2 & 3 open v cc = 4.5 v; v o = 2.4 v; i o 100 m a hysteresis i hys hcpl-3700 1.2 ma i hys = i th+ C i th- 2 hcpl-3760 0.6 v hys 1.2 v v hys = v th+ C v th- input clamp voltage v ihc1 5.4 6.0 6.6 v v ihc1 = v 2 - v 3 ; v 3 = gnd; 1 i in = 10 ma; pins 1 & 4 connected to pin 3 v ihc2 6.1 6.7 7.3 v v ihc2 = |v 1 - v 4 |; |i in | = 10 ma; pins 2 & 3 open v ihc3 12.0 13.4 v v ihc3 = v 2 - v 3 ; v 3 = gnd; i in = 15 ma; pins 1 & 4 open v ilc -0.76 v v ilc = v 2 - v 3 ; v 3 = gnd; i in = -10 ma input current i in hcpl-3700 3.0 3.7 4.4 ma v in = v 2 C v 3 = 5.0 v 5 hcpl-3760 1.5 1.8 2.2 bridge diode v d1,2 hcpl-3700 0.59 v i in = 3 ma hcpl-3760 0.51 i in = 1.5 ma v d3,4 hcpl-3700 0.74 i in = 3 ma hcpl-3760 0.71 i in = 1.5 ma logic low output v ol 0.1 0.4 v v cc = 4.5 v; i ol = 4.2 ma 5 14 voltage logic high i oh 100 m av oh = v cc = 18 v 14 output current logic low supply i ccl hcpl-3700 1.2 4 ma v 2 C v 3 = 5.0 v; v o = open; 6 hcpl-3760 0.7 3 v cc = 5.0 v logic high supply i cch 0.002 4 m av cc = 18 v; v o = open 4 14 current input capacitance c in 50 pf f = 1 mhz; v in = 0 v, pins 2 & 3, pins 1 & 4 open v o = 0.4 v; i o 4.2 ma v o = 2.4 v; i oh 100 m a forward voltage electrical specifications over recommended temperature t a = 0 c to 70 c, unless otherwise specified. current current pins 1 & 4 open
7 parameter sym. device min. typ. max. units test conditions fig. note propagation delay hcpl-3700 4.0 time to logic low t phl 15.0 m sr l = 4.7 k w , c l = 30 pf 10 at output hcpl-3760 4.5 7, 10 propagation delay hcpl-3700 10.0 time to logic high t plh 40.0 m sr l = 4.7 k w , c l = 30 pf 11 at output hcpl-3760 8.0 hcpl-3700 20 output rise time t r m sr l = 4.7 k w , c l = 30 pf (10-90%) hcpl-3760 14 8 hcpl-3700 0.3 output fall time t f m sr l = 4.7 k w , c l = 30 pf (90-10%) hcpl-3760 0.4 common mode i in = 0 ma, r l = 4.7 k w , transient immunity |cm h | 4000 v/ m sv o min = 2.0 v, v cm = 1400 v at logic high output 9, 11 12, 13 common mode hcpl-3700 i in = 3.11 ma r l = 4.7 k w , transient immunity |cm l | 600 v/ m sv o max = 0.8 v, at logic low output hcpl-3760 i in = 1.56 ma v cm = 140 v switching specifications t a = 25 c, v cc = 5.0 v, unless otherwise specified. package characteristics over recommended temperature t a = 0 c to 70 c, unless otherwise specified. parameter sym. min. typ. [9] max. units conditions fig. note input-output momentary v iso 2500 v rms rh 50%, t = 1 min; 16, withstand voltage* t a = 25 c17 input-output resistance r i-o 10 12 w v i-o = 500 vdc 16 input-output capacitance c i-o 0.6 pf f = 1 mhz; v i-o = 0 vdc *the input-output momentary withstand voltage is a dielectric voltage rating that should not be interpreted as an input-output continuous voltage rating. for the continuous voltage rating refer to the vde 0884 insulation characteristics table (if applicable), your equipment level safety specification, or agilent application note 1074, optocoupler input-output endurance voltage.
8 notes: 1. measured at a point 1.6 mm below seating plane. 2. current into/out of any single lead. 3. surge input current duration is 3 ms at 120 hz pulse repetition rate. transient input current duration is 10 m s at 120 hz pulse repetition rate. note that maximum input power, p in , must be observed. 4. derate linearly above 70 c free-air temperature at a rate of 4.1 mw/ c. maximum input power dissipation of 230 mw allows an input ic junction temperature of 125 c at an ambient temperature of t a = 70 c with a typical thermal resistance from junction to ambient of q ja1 = 240 c/w. excessive p in and t j may result in ic chip degradation. 5. derate linearly above 70 c free-air temperature at a rate of 5.4 mw/ c. 6. derate linearly above 70 c free-air temperature at a rate of 3.9 mw/ c. maximum output power dissipation of 210 mw allows an output ic junction temperature of 125 c at an ambient temperature of t a = 70 c with a typical thermal resistance from junction to ambient of q ja0 = 265 c/w. 7. derate linearly above 70 c free-air temperature at a rate of 0.6 ma/ c. 8. maximum operating frequency is defined when output waveform pin 6 obtains only 90% of v cc with r l = 4.7 k w , c l = 30 pf using a 5 v square wave input signal. 9. all typical values are at t a = 25 c, v cc = 5.0 v unless otherwise stated. 10. the t phl propagation delay is measured from the 2.5 v level of the leading edge of a 5.0 v input pulse (1 m s rise time) to the 1.5 v level on the leading edge of the output pulse (see figure 10). 11. the t plh propagation delay is measured from the 2.5 v level of the trailing edge of a 5.0 v input pulse (1 m s fall time) to the 1.5 v level on the trailing edge of the output pulse (see figure 10). 12. common mode transient immunity in logic high level is the maximum tolerable (positive) dv cm /dt on the leading edge of the common mode pulse, v cm , to insure that the output will remain in a logic high state (i.e., v o > 2.0 v). common mode transient immunity in logic low level is the maximum tolerable (negative) dv cm /dt on the trailing edge of the common mode pulse signal, v cm , to insure that the output will remain in a logic low state (i.e., v o < 0.8 v). see figure 11. 13. in applications where dv cm /dt may exceed 50,000 v/ m s (such as static discharge), a series resistor, r cc , should be included to protect the detector ic from destructively high surge currents. the recommended value for r cc is 240 w per volt of allowable drop in v cc (between pin 8 and v cc ) with a minimum value of 240 w . 14. logic low output level at pin 6 occurs under the conditions of v in v th+ as well as the range of v in > v thC once v in has exceeded v th+ . logic high output level at pin 6 occurs under the conditions of v in v th- as well as the range of v in < v th+ once v in has decreased below v th- . 15. ac voltage is instantaneous voltage. 16. device considered a two terminal device: pins 1, 2, 3, 4 connected together, and pins 5, 6, 7, 8 connected together. 17. in accordance with ul 1577, each optocoupler is proof tested by applying an insulation test voltage 3000 v rms for 1 second (leakage detection current limit, i i-o 5 m a). figure 1. typical input characteristics, i in vs. v in (ac voltage is instantaneous value). input device th + th C connnection i th hcpl-3700 2.5 ma 1.3 ma pins 2, 3 hcpl-3760 1.2 ma 0.6 ma or 1, 4 v th(dc) both 3.7 v 2.6 v pins 2, 3 v th(ac) both 4.9 v 3.7 v pins 1, 4 figure 2. typical transfer characteristics.
9 figure 5. typical input current, i in , and low level output voltage, v ol , vs. temperature. figure 6. typical logic low supply current vs. supply voltage. i in ?input current ?ma t a ?temperature ?? 2.4 -20 4.2 04060 1.8 3.4 3.8 -40 80 2.2 2.0 20 hcpl-3700 2.6 2.8 3.0 3.2 3.6 4.0 60 240 0 160 200 40 20 80 100 120 140 180 220 v ol ?low level output voltage ?mv v in = 5.0 v (pins 2, 3) v cc = 5.0 v i in v cc = 5.0 v i ol = 4.2 ma v ol figure 4. typical high level supply current, i cch vs. temperature. i in ?input current ?ma t a ?temperature ?? 1.2 -25 2.1 05075 0.9 1.7 1.9 -40 85 1.1 1.0 25 hcpl-3760 1.3 1.4 1.5 1.6 1.8 2.0 60 240 0 160 200 40 20 80 100 120 140 180 220 v ol ?low level output voltage ?mv v in = 5.0 v (pins 2, 3) v cc = 5.0 v i in v cc = 5.0 v i ol = 4.2 ma v ol i ccl ?logic low supply current ?ma v cc ?supply voltage ?v 2.50 2.00 6.0 4.00 8.0 12.0 14.0 0 3.00 3.50 4.0 20.0 18.0 1.50 1.00 0.50 10.0 16.0 hcpl-3700 i ccl ?logic low supply current ?ma v cc ?supply voltage ?v 1.50 6.0 3.00 8.0 12.0 14.0 0 2.00 2.50 4.0 20.0 18.0 1.00 0.50 10.0 16.0 hcpl-3760 i cch ?high level supply current ?? t a ?temperature ?? -25 10 0 05075 10 -5 10 -1 -40 85 10 -4 25 10 -3 10 -2 v cc = 18 v v o = open i in = 0 ma i cch i cch figure 3. typical dc threshold levels vs. temperature. v th ?voltage threshold ?v t a ?temperature ?? 2.4 -20 4.2 04060 1.8 3.4 3.8 -40 80 2.2 2.0 20 hcpl-3700 2.6 2.8 3.0 3.2 3.6 4.0 1.4 3.2 0.8 2.4 2.8 1.2 1.0 1.6 1.8 2.0 2.2 2.6 3.0 i th ?current threshold ?ma i th+ v th- i th- v th+ v th ?voltage threshold ?v t a ?temperature ?? 2.4 -25 4.2 05075 1.8 3.4 3.8 -40 85 2.2 2.0 25 hcpl-3760 2.6 2.8 3.0 3.2 3.6 4.0 0.7 1.6 0.4 1.2 1.4 0.6 0.5 0.8 0.9 1.0 1.1 1.3 1.5 i th ?current threshold ?ma v th+ i th+ v th- i th-
10 t p ?propagation delay ?? t a ?temperature ?? 6 -20 24 04060 0 16 20 -40 80 4 2 20 hcpl-3700 8 10 12 14 18 22 r l = 4.7 k w c l = 30 pf v cc = 5.0 v v in = t plh 5.0 v 1 ms pulse width f = 100 hz t r , t f = 1 ? (10-90%) t phl figure 7. typical propagation delay vs. temperature. t r ?rise time ?? t a ?temperature ?? -20 60 04060 0 40 50 -40 80 10 20 hcpl-3700 20 30 r l = 4.7 k w c l = 30 pf v cc = 5.0 v v in = t r 5.0 v 1 ms pulse width f = 100 hz t r , t f = 1 ? (10-90%) 600 0 400 500 100 200 300 t f ?fall time ?ns t f t p ?propagation delay ?? t a ?temperature ?? 6 -25 24 05075 0 16 20 -40 85 4 2 25 hcpl-3760 8 10 12 14 18 22 r l = 4.7 k w c l = 30 pf v cc = 5.0 v v in = t plh 5.0 v 1 ms pulse width f = 100 hz t r , t f = 1 ? (10-90%) t phl t r ?rise time ?? t a ?temperature ?? -25 30 05075 0 20 25 -40 85 5 25 hcpl-3760 10 15 r l = 4.7 k w c l = 30 pf v cc = 5.0 v v in = t f 5.0 v 1 ms pulse width f = 100 hz t r , t f = 1 ? (10-90%) t r t f ?fall time ?ns 700 100 500 600 200 300 400 figure 8. typical rise, fall times vs. temperature. figure 9. common mode transient immunity vs. common mode transient amplitude. cm ?common mode transient immunity ?v/ ? v cm ?common mode transient amplitude ?v 400 5000 800 1600 0 3000 4000 0 2000 500 1200 1000 2000 v cc = 5.0 v i in = 3.11 ma (3700) i in = 1.53 ma (3760) v ol = 0.8 v r l = 4.7 k w t a = 25 ? v cc = 5.0 v i in = 0 ma v oh = 2.0 v r l = 4.7 k w t a = 25 ? cm l cm h
11 figure 12. typical external threshold characteristics, v vs. r x . figure 10. switching test circuit. figure 11. test circuit for common mode transient immunity and typical waveforms. v th+ = 3.7 v v th = 2.6 v v th+ = 4.9 v v th = 3.7 v i th+ = 2.5 ma i th = 1.3 ma t a = 25 ?
electrical considerations the hcpl-3700/3760 optocoup- lers have internal temperature compensated, predictable voltage and current threshold points which allow selection of an external resistor, r x , to determine larger external threshold voltage levels. for a desired external threshold voltage, v , a corre- sponding typical value of r x can be obtained from figure 12. specific calculation of r x can be obtained from equation (1). specification of both v + and v - voltage threshold levels simul- taneously can be obtained by the use of r x and r p as shown in figure 13 and determined by equations (2) and (3). r x can provide over-current transient protection by limiting input current during a transient condition. for monitoring con- tacts of a relay or switch, the hcpl-3700/3760 in combination with r x and r p can be used to allow a specific current to be conducted through the contacts for cleaning purposes (wetting current). the choice of which input voltage clamp level to choose depends upon the application of this device (see figure 1). it is recom- mended that the low clamp condition be used when possible. the low clamp condition in conjunction with the low input current feature will ensure extremely low input power dissipation. in applications where dv cm /dt may be extremely large (such as static discharge), a series resistor, r cc , should be connected in series with v cc and pin 8 to pro- tect the detector ic from destruc- tively high surge currents. see note 13 for determination of r cc . in addition, it is recommended that a ceramic disc bypass capacitor of 0.01 m f be placed between pins 8 and 5 to reduce the effect of power supply noise. for interfacing ac signals to ttl systems, output low pass filtering can be performed with a pullup resistor of 1.5 k w and 20 m f capacitor. this application requires a schmitt trigger gate to avoid slow rise time chatter problems. for ac input applica- tions, a filter capacitor can be placed across the dc input terminals for either signal or transient filtering. either ac (pins 1, 4) or dc (pins 2, 3) input can be used to determine external threshold levels. v + - v th+ (-) (-) r x = (1) i th+ (-) for two specifically selected external threshold voltage levels, v + and v - , the use of r x and r p will permit this selection via equations (2), (3) provided the following conditions are met. if the denominator of equation (2) is positive, then v + v th+ v + - v th+ i th+ and < v - v th- v - - v th- i th- conversely, if the denominator of equation (2) is negative, then v + v th+ v + - v th+ i th+ and > v - v th- v - - v th- i th- v th- (v + ) - v th+ (v - ) r x = (2) i th+ (v th- ) - i th- (v th+ ) v th- (v + ) - v th+ (v - ) r p = (3) i th+ (v - -v th- )+i th- (v th+ -v + ) figure 13. external threshold voltage level selection. for one specifically selected external threshold voltage level v + or v - , r x can be determined without use of r p via www.semiconductor.agilent.com data subject to change. copyright ? 1999 agilent technologies obsoletes 5091-9668e 5965-3582e (11/99)

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