? 2002 teledyne relays (800) 284-7007 ? www.teledynerelays.com cd 41 cd\072002\q1 2a, 60vdc optically isolated, short-circuit protected dc solid-state relay features ?a vailable with short circuit/current overload protection ? available with input status monitor ? ttl and cmos compatible control ? low on resistance power fet output ? fast switching speed ? meets 28 vdc system requirements of mil-std-704 ? optical isolation ? low profile hermetic ceramic package ? built and tested to the requirements of mil-prf-28750 description this all solid-state relay utilizes the latest technology to provide a low on resistance. the control (input) and load (output) are optically isolated to protect input logic circuits from voltage and current transients which can occur on the output supply. the optical isolation also provides a full floating output, thus allowing the load to be connected to either output terminal. the control circuit is buffered to enable the relay to be driven directly from standard cmos or open collector ttl logic circuits. available options include short circuit and current overload protection, which provides complete protection for both the relay and the system wiring. this feature not only provides protection should a short or overload occur while the relay is on, but will also provide protection should the relay be switched into a short. in either case, the relay will sense the short circuit condition and then block it indefinitely until the short is removed and the unit is reset by cycling the input control. the second option is a status output, which provides a built-in- test function. this feature checks the input circuitry of the relay and provides a logic (0) low when the input circuit is turned on and operational. both options are available either together or separately as standard features. series cd part* desc drawing relay description number number cd00cfw basic solid-state relay (ssr) cd00cfy 90091-008 cd01cfw ssr with control status cd01cfy 90091-006 CD20CDW ssr with short-circuit protection cd20cdy 90091-004 cd21cdw ssr with short-circuit protection cd21cdy 90091-002 and control status * the y suffix denotes parameters tested to mil-prf-28750 specifications. the w suffix denotes parameters tested to teledyne specifications. for surface mount (smt), add s prefix to part number. example: scd00cfw electrical specifications (-55 c to +105 c unless otherwise noted) input (control) specification when used in 2 terminal configuration (ttl or direct control) (see fig. 1) min typ max units input current @ v in = 5 vdc (see fig. 2) 14 15 ma turn-off voltage (guaranteed off) 1.5 vdc turn-on voltage (guaranteed on) 3.8 vdc reverse voltage protection -32 vdc input supply range (see note 4) 3.8 6 vdc input (control) specification when used in 3 terminal configuration (cmos or open collector ttl) (see fig. 1) min typ max units control current v control = 5 vdc 250 a v control = 18 vdc 1 ma control voltage range 0 18 vdc bias supply voltage (see note 4) 3.8 6 vdc bias supply current @ v bias = 5 vdc 14 15 ma turn-off voltage (guaranteed off) 3.2 vdc turn-on voltage (guaranteed on) 0.3 vdc
cd 42 specifications are subject to change without notice ? 2002 teledyne relays cd\072002\q1 series cd output (load) specifications (see note 2) min typ max units continuous load current (see fig. 3) cd20cd 1.0 adc cd21cd 1.0 adc cd00cf 2.0 adc cd01cf 2.0 adc leakage current @ v load = 60 vdc 40 adc output voltage drop cd20cd 0.6 vdc cd21cd 0.6 vdc cd00cf 0.75 vdc cd01cf 0.75 vdc continuous operating load voltage 60 vdc transient blocking voltage (see note 3) 80 vdc on resistance rds (on) at t j = 25 c i load = 100 madc (see fig. 4) cd20cd 0.36 0.45 ohm cd21cd 0.36 0.45 ohm cd00cf 0.16 0.22 ohm cd01cf 0.16 0.22 ohm turn-on time (see fig. 5) 1.5 ms turn-off time (see fig. 5) 0.25 ms electrical system spike 600 vdc output capacitance at 25 vdc, 100 khz 475 pf input to output capacitance 10 pf dielectric strength 1000 vac insulation resistance @ 500 vdc 10 9 ohm maximum junction temperature (t j max) cd00 150 c cd01 150 c thermal resistance junction to ambient ( ja )80 c/w thermal resistance junction to case ( jc )20 c/w status output specifications (cd01cf and cd21cd) min typ max units status supply voltage (see note 7) 30 vdc status leakage current @ 15 vdc 4 adc status (sink) current (v so < 0.3 vdc) 2 madc block diagram (bottom view) mechanical specifications
? 2002 teledyne relays (800) 284-7007 ? www.teledynerelays.com cd 43 cd\072002\q1 series cd short circuit specifications (cd20cd and cd21cd) min typ max units surge current (see fig. 7 and note 6) 2.4 adc environmental specifications min typ max units temperature range operating -55 +105 c storage -55 +125 c vibration, 100 g 10 3000 hz constant acceleration 5000 g shock, 0.5 ms 1500 g table 1: status output truth table (cd01cf and cd21cd) control voltage output status status output level high off high (v so = v status ) low on low (v so ) 0.3 vdc) input current vs voltage figure 2 (see note 4) load current derating curve figure 3 wiring configurations figure 1 (see note 8)
cd 44 specifications are subject to change without notice ? 2002 teledyne relays cd\072002\q1 notes: 1. control input is compatible with cmos or open collector ttl (with pull up resistor). 2. the rated input voltage is 5v for all tests unless otherwise specified. 3. transient blocking voltage tests are performed per mil-std-704 (28 vdc systems). 4. for bias voltages above 6v, a series resistor is required. use the standard resistor value equal to or less than the value found from figure 8. 5. to calculate the maximum on resistance for a given junction temperature, find the normalized on resistance factor (nr) from figure 4. calculate the new on resistance as follows: (cd00cd, cd01cd) r (on) = nr ? r on @ 25 c (cd20cd, cd21cd) r (on) = 0.2 ? nr + 0.21 6. overload testing to the requirements of mil-prf-28750 is constrained to the limits imposed by the short circuit protection characteristics as defined in this specification. system series inductance for shorted-load mode of operation should be 30 h maximum. maximum repetition rate into a shorted load should not exceed 10 hz. 7. a status pull up resistor is required for proper operation of the status output. determine the current (iso) required by the status interface. calculate the current (is) through the status resistor such that the sink current through the status output is 2 ma. select the status resistor such that it does not allow more than 2 ma to flow through the status output. r status = v status - 0.3v 2 ma - iso 8. inductive loads should be diode suppressed. input transitions should be 1 ms duration and the input drive should be a bounceless contact type. series limit bias resistor vs bias voltage figure 8 (see note 4) trip current vs time figure 7 (see note 6) output turn-on and turn-off timing figure 5 normalized on resistance vs junction temperature figure 4 (see note 5) series cd
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