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7/24/03 p age 1 of 11 ?2003 fairchild semiconductor corporation ac line monitor logic-out device mid400 description the mid400 is an optically isolated ac line-to-logic interface device. it is packaged in an 8-lead plastic dip. the ac line voltage is monitored by two back-to-back gaas led diodes in series with an external resistor. a high gain detector circuit senses the led current and drives the output gate to a logic low condition. the mid400 has been designed solely for the use as an ac line monitor . it is recommended for use in any ac-to-dc control application where excellent optical isolation, solid state reliability, ttl compatibility, small size, low power, and low frequency operations are required. features direct operation from any line voltage with the use of an external resistor. externally adjustable time delay externally adjustable ac voltage sensing level high voltage isolation between input and output compact plastic dip package logic level compatibility ul recognized (file #e90700) vde recognized (?e #102915), ?add option v (e.g., mid400v) applications monitoring of the ac/dc ?ine-down condition ?losed-loop interface between electromechanical elements such as solenoids, relay contacts, small motors, and microprocessors time delay isolation switch 1 2 3 4 5 6 7 8 v cc aux v 0 gnd equivalent circuit n/c n/c 8 8 1 8 1 1
ac line monitor logic-out device mid400 7/24/03 p age 2 of 11 ?2003 fairchild semiconductor corporation absolute maximum ratings rating v alue unit emitter rms current 25 ma dc current ?0 ma led power dissipation @ t a = 25? (p d ) derate above 70? 45 2.0 mw mw/? detector low level output current (i ol )20ma high level output voltage(v oh ) 7.0 v supply voltage (v cc ) 7.0 v detector power dissipation @ t a = 25? (p d ) derate above 70? 70 2.0 mw mw/? tot al device storage temperature -55 to +125 ? operating temperature -40 to +85 ? lead solder temperature 260 for 10 sec ? t otal device power dissipation @ t a = 25? (p d ) derate above 70? 115 mw 4.0 mw/? steady state isolation 2500 vrms
7/24/03 p age 3 of 11 ?2003 fairchild semiconductor corporation ac line monitor logic-out device mid400 (rms = true rms voltage at 60 hz, thd 1%) electrical characteristics (0? to 70? free air temperature unless otherwise speci?d-all typical values are at 25? individual component characteristics p arameter test conditions symbol min typ max unit emitter input forward voltage (i f = ?0 ma, dc) v f 1.5 v detector logic low output supply current (i in = 4.0 ma rms, v o = open, v cc = 5.5 v, 24 v [ v i (on) , rms 240 v) i ccl 3.0 ma logic high output supply current (i in = 0.15 ma rms, v cc = 5.5 v, v i (off) , rms 5.5 v) i cch 0.80 ma transfer characteristics dc characteristics test conditions symbol min typ max units logic low output current (i in = i i (on) rms, i o = 16 ma, v cc = 4.5 v, 24 v v i (on) , rms 240 v) v ol 0.18 0.40 v logic high output current (i in = 0.15 ma rms, v o = v cc = 5.5 v, v i (off) , rms 5.5 v) i oh 0.02 100 ? on-state rms input voltage (v o = 0.4 v, i o = 16 ma v cc = 4.5 v, r in = 22 k ? ) v i (on) rms 90 v off-state rms input voltage (v o = v cc = 5.5 v, i o 100 ?, r in = 22 k ? ) v i (off) rms 5.5 v on-state rms input current (v o = 0.4 v, i o = 16 ma, v cc = 4.5 v, 24 v v i (on) , rms 240 v) i i (on) rms 4.0 ma off-state rms input current (v o = v cc = 5.5 v, i o 100 ?, v i (off) , rms 5.5 v) i i (off) rms 0.15 ma transfer characteristics characteristics test conditions symbol min typ max units switching time (t a = 25?) tu r n-on time (i in = 4.0 ma rms, i o = 16 ma, v cc = 4.5 v, r in = 22 k ? ) (see test circuit 2) t on 1.0 ms tu r n-off time (i in = 4.0 ma rms, i o = 16 ma, v cc = 4.5 v, r in = 22 k ? ) (see test circuit 2) t off 1.0 ms
ac line monitor logic-out device mid400 7/24/03 p age 4 of 11 ?2003 fairchild semiconductor corporation the input of the mid400 consists of two back-to-back led diodes which will accept and convert alternating currents into light energy. an integrated photo diode-detector ampli?r forms the output network. optical coupling between input and output provide s 2500 vrms voltage isolation. a very high current transfer ratio (de?ed as the ratio of the dc output current and the dc input cur- rent) is achieved through the use of high gain ampli?r. the detector ampli?r circuitry operates from a 5 v dc supply and driv es an open collector transistor output. the switching times are intentionally designed to be slow in order to enable the mid400, w hen used as an ac line monitor, to respond only to changes in input voltage exceeding many milliseconds. the short period of time during zero-crossing which occurs once every half cycle of the power line is completely ignored. to operate the mid400, always add a resistor, r in , in series with the input (as shown in test circuit 1) to limit the current to the required value. the value of the resistor can be determined by the following equation: where v in (rms) is the input voltage. v f is the forward voltage drop across the led. i in (rms) is the desired input current required to sustain a logic ? on the output. designation pin # function v in1 , v in2 1,3 input terminals v cc 8 supply voltage, output circuit. a ux. 7 auxiliary terminal. programmable capacitor input to adjust ac voltage sensing level and time delay. v o 6 output terminal; open collector. gnd 5 circuit ground potential. isolation characteristics (t a = 25?) characteristics test conditions symbol min typ max units steady state isolation voltage relative humidity 50%, i i-o 10 ?, 1 minute, 60 hz v iso 2500 vrms isolation resistance (v i-o = 500 vdc) r iso 10 11 ? isolation capacitance (f = 1 mhz) c iso 2pf description / applications pin description r in v in v f i in ---------------------- - = 4 5 1 v in1 v in2 v cc aux. gnd v o 2 3 8 7 6 note: do not connect pins 2 and 4 schematic diagram
7/24/03 p age 5 of 11 ?2003 fairchild semiconductor corporation ac line monitor logic-out device mid400 vo ltages v i (on) rms on-state rms input voltage the rms voltage at an input terminal for a speci?d input current with output conditions applied that according to the product speci?ation will cause the output switching element to be sustained in the on-state within one full cycle. v i (off) rms off-state rms input voltage the rms voltage at an input terminal for a speci?d input current with output conditions applied that according to the product speci?ation will cause the output switching element to be sustained in the off-state within one full cycle. v ol low-level output voltage the voltage at an output terminal for a speci? output current i ol , with input conditions applied that according to the product speci?ation will establish a low-level at the output. v oh high-level output voltage the voltage at an output terminal for a speci? output current i oh , with input conditions applied that according to the product speci?ation will establish a high-level at the output. v f led forward voltage the voltage developed across the led when input current i f is applied to the anode of the led. currents i i (on) rms on-state rms input current the rms current ?wing into an input with output conditions applied that according to the product speci?ation will cause the output switching element to be sustained in the on-state within one full cycle. i i (off) rms off-state rms input current the rms current ?wing into an input with output conditions applied that according to the product speci?ation will cause the output switching element to be sustained in the off-state within one full cycle. i oh high-level output current the current ?wing into * an output with input conditions applied that according to the product speci?ation will establish a high-level at the output. i ol low-level output current the current ?wing into * an output with input conditions applied that according to the product speci?ation will establish a low-level at the output. i ccl supply current, output low the current ?wing into * the v cc supply terminal of a circuit when the output is at a low-level voltage. i cch supply current, output high the current ?wing into * the v cc supply terminal of a circuit when the output is at a high-level voltage. d ynamic characteristics t on tu r n-on time the time between the speci?d reference points on the input and the output voltage waveforms with the output changing from the de?ed high-level to the de?ed low-level. t off tu r n-off time the time between the speci?d reference points on the input and the output voltage waveforms with the output changing from the de?ed low-level to the de?ed high-level. * current ?wing out of a terminal is a negative value. glossary
ac line monitor logic-out device mid400 7/24/03 p age 6 of 11 ?2003 fairchild semiconductor corporation operating schematics 4 5 1 1 2 3 4 8 7 6 5 2 3 8 7 6 r in = 22 k ? 22 k ? r in r l 300 ? r l = 300 ? v cc t off t on output output test circuit * input turns on and off at zero crossing input current vs. capacitance, c aux circuit test circuit 2 mid400 switching time test circuit 1 50% 50% a-c input a-c input v oh v ol ov v in ac input v o c aux 1 input v cc +4.5 v v cc a ux. v out gnd n/c 2 input n/c
7/24/03 p age 7 of 11 ?2003 fairchild semiconductor corporation ac line monitor logic-out device mid400 typical curves 10 0 0 0 0 0.4 0 0.05 0.10 0.15 0.20 0.30 0.8 1.2 1.6 2.0 2.4 2.8 5 10 15 20 25 30 50 80 90 100 110 120 100 150 200 250 20 30 40 50 60 t a = 25 c v cc = 5.0 v i ol = 16 ma i oh 100 a i ccl i i (on) i i (off) i cch i i (on) = 4.0 ma, (rms) 4.5 v 5.0 v turn on turn off input resitance, r in (kv) input resitance, r in (k ? ) fig. 1 input voltage vs. input resistance fig. 3 supply current vs. supply voltage fig. 5 output voltage vs. output current fig. 4 input current vs. capacitance fig. 2 input voltage vs. input resistance 4.5 4.6 4.7 4.8 4.9 5.0 5.1 5.2 5.3 5.4 5.5 10 20 50 100 v cc - supply voltage (v) 0 5.0 10.0 15.0 20.0 25.0 i ol - output current (ma) capacitance (pf) (aux. to gnd) 10 0203 0405060 a - c input voltage (rms) i cc - normalized (%) v ol - output voltage (v) a - c input voltage (rms) input current (ma) rms 200 500 1000 v cc = 5.0 v i ol = 16 ma i oh 100 a r in = 22 k ? t a = 25 c t a = 25 c v cc = 5.0 v
ac line monitor logic-out device mid400 7/24/03 p age 8 of 11 ?2003 fairchild semiconductor corporation pa ck ag e dimensions (through hole) 0.200 (5.08) 0.140 (3.55) 0.100 (2.54) typ 0.022 (0.56) 0.016 (0.41) 0.020 (0.51) min 0.390 (9.91) 0.370 (9.40) 0.270 (6.86) 0.250 (6.35) 3 0.070 (1.78) 0.045 (1.14) 2 41 56 7 8 0.300 (7.62) typ 0.154 (3.90) 0.120 (3.05) 0.016 (0.40) 0.008 (0.20) 15?max pin 1 id. seating plane pa ck ag e dimensions (surface mount) lead coplanarity : 0.004 (0.10) max 0.270 (6.86) 0.250 (6.35) 0.390 (9.91) 0.370 (9.40) 0.022 (0.56) 0.016 (0.41) 0.100 (2.54) typ 0.020 (0.51) min 0.070 (1.78) 0.045 (1.14) 0.300 (7.62) typ 0.405 (10.30) min 0.315 (8.00) min 0.045 [1.14] 32 1 4 567 8 0.016 (0.41) 0.008 (0.20) pin 1 id. pa ck ag e dimensions (0.4"lead spacing) 0.200 (5.08) 0.140 (3.55) 0.100 (2.54) typ 0.022 (0.56) 0.016 (0.41) 0.004 (0.10) min 0.390 (9.91) 0.370 (9.40) 0.270 (6.86) 0.250 (6.35) 3 0.070 (1.78) 0.045 (1.14) 2 41 56 7 8 0.400 (10.16) typ 0.154 (3.90) 0.120 (3.05) 0.016 (0.40) 0.008 (0.20) 0?to 15 pin 1 id. seating plane recommended pad layout for surface mount leadform 0.070 (1.78) 0.060 (1.52) 0.030 (0.76) 0.100 (2.54) 0.295 (7.49) 0.415 (10.54) note all dimensions are in inches (millimeters)
7/24/03 p age 9 of 11 ?2003 fairchild semiconductor corporation ac line monitor logic-out device mid400 ordering information marking information option description s surface mount lead bend sd surface mount; tape and reel sdv surface mount; tape and reel, vde 0884 sv surface mount, vde 0884 v vde 0884 w 0.4" lead spacing wv 0.4" lead spacing; vde 0884 mid400 v xx yy t1 1 2 6 4 3 5 de?itions 1f airchild logo 2d e vice number 3 vde mark (note: only appears on parts ordered with vde option ?see order entry table) 4t wo digit year code, e.g., ?3 5t wo digit work week ranging from ?1 to ?3 6 assembly package code
ac line monitor logic-out device mid400 7/24/03 p age 10 of 11 ?2003 fairchild semiconductor corporation note all dimensions are in inches (millimeters) re?w pro?e carrier tape specifications (? taping orientation) 0.30 0.05 4.0 0.1 4.0 0.1 1.55 0.05 1.6 0.1 1.75 0.10 12.0 0.1 10.30 0.20 13.2 0.2 0.1 max user direction of feed 4.90 0.20 16.0 0.3 7.5 0.1 10.30 0.20 ? peak reflow temperature: 225 c (package surface temperature) ? time of temperature higher than 183 c for 60?50 seconds ? one time soldering reflow is recommended 215 c, 10?0 s 225 c peak ti me (minute) 0 300 250 200 150 100 50 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 te mperature ( c) time above 183 c, 60?50 sec ramp up = 3 c/sec
life support policy fairchild? products are not authorized for use as critical components in life support devices or systems without the express written approval of the president of fairchild semiconductor corporation. as used herein: 1. life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the user. 2. a critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. disclaimer fairchild semiconductor reserves the right to make changes without further notice to any products herein to improve reliability, function or design. fairchild does not assume any liability arising out of the application or use of any product or circuit described herein; neither does it convey any license under its patent rights, nor the rights of others. 7/24/03 p age 11 of 11 ?2003 fairchild semiconductor corporation ac line monitor logic-out device mid400

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