engineering data sheet p140 series solid state power controller 28 vdc, 1pno-with current or voltage status output 1, 2, 4, 5, 7, 7.5 and 10 amp ratings size: 25.7 x 25.7 x 9.7 mm description this leach solid state power controller features reliable, trouble free switching together with real short circuit and overload protection. load current is sensed and shutdown initiated within microseconds. a status signal is derived from the load current value or load voltage value and is reported via an optically isolated status output. designed to operate in 28vdc systems, these devices do not require derating for any load type. they are hermetically sealed, in a metal package. for other ratings and operating voltages, please consult leach. features l no derating for all types of loads up to 85 c l very low voltage drop l no heat sink required l extremely small size l fast acting l built-in overload and short circuit protection l trip free l wide bias voltage range l fully isolated bias, control and status l real load current status l exceeds mil-p-81653 requirements block diagram featuring leach ? power and control solutions www.leachintl.com americas 6900 orangethorpe ave. p.o. box 5032 buena park, ca 90622 usa tel: (01) 714-736-7599 fax: (01) 714-670-1145 europe 2 rue goethe 57430 sarralbe france tel: (33) 3 87 97 31 01 fax: (33) 3 87 97 96 86 asia room 501, 5/f, the centre mark 287 - 299 queen's road central hong kong tel: (852) 2 191 3830 fax: (852) 2 389 5803 data sheets are for initial product selection and comparison. contact leach international prior to choosing a component. date of issue: 4/10 - 5 - page 1 of 4
electrical characteristics p140 series typical values are at 25 5c input 5 volt bias 28 volt bias specification min. typ. max. min. typ. max. unit note bias on voltage 4.5 5.5 18 32 v 1,2 bias on current 20 13 ma 3 bias off current 1 3 ma 3 control voltage "on" 2.4 32 2.4 32 v control voltage "off" -0.3 0.8 -0.3 0.8 v control current "on" 0.3 0.3 ma 4 control current "off" -20 -20 a transients (bias input) 15 50 v 5 notes: 1. bias voltage must be a step function. 2. no reverse polarity protection. 3. bias voltage is 5.0 v or 28 v respectively. 4. at 32 v, typical at 5 v. 5. maximum duration 50 ms, duty cycle =1%, repetition rate 1 hz. power output specification min. typ. max. unit note load current 0 100 % irated 1 "on" state voltage drop 100 200 mv 2 "off" state line voltage 32 v 3 leakage current 100 a 4 transients +50 v 5 isolat voltage 500 vrms 8 insulation resistance 100 1000 mw 9 spikes -600 +600 v 6 trip current 107 110 120 % irated 7 notes: 1. observe thermal derating cure. available ratings see front page. 2. for 4 amp and higher current versions maximum voltage drop is 300 mv. load current is 100% rated current. 3. reverse polarity is not blocked and may damage the sspc. 4. at 100 c and 28v. 5. maximum duration 50 ms, duty cycle =1%, repetition rate 1 hz. 6. time per mil-p-81653. 7. see "trip characteristics". 8. 60 hz, 10.5 bias, control, status and gnd tied together; line and load tied together. tested between gnd, line and case at sea level. 9. at 500vdc 10% between gnd, line, and case. status output specification min. typ. max. unit note status voltage "high" 3.5 5.5 v status voltage "low" 0.3 v status pick-up current 25 % 1 status drop-out current 15 % 1 status pick-up voltage 99 % 2, 3 status drop-out voltage 1 % 2, 4 status output impedance 2.5 2.7 3.0 k w notes: 1. current sensed. percentage of rated current. 2. voltage sensed. percentage of applied line voltage across the load. 3. normal "on" condition. 4. normal "off" or "tripped off" condition. date of issue: 4/10 - 6 - page 2 of 4
timing p140 series parameter symbol max unit note turn on delay load current rise time load to status on delay turn off delay load current fall time load to status off delay overload status response t0 t1 t2 t3 t4 t5 t6 200 50 100 200 50 100 100 s s s s s s s 2 2 2 2 2 2 3 notes: 1. all timing measurements are taken from/to 10% and/or 90% terminated with a resistive rated load. 2. at 100% rated current 3. at 250% rated current "status" is active high. v bias is 5.0 v or 28 v respectively. rated resistive load; measurements taken between 10% and 90% points. trip characteristic date of issue: 4/10 - 7 - page 3 of 4
environmental data p140 series specification min. max. unit note operational temp. range -55 105 c 1, 2 storage temp. range -55 125 c thermal resistance, junction to case 20 c/w max. junction temperature of output stage 150 c vibration 30 g, 96....2000 hz 3 acceleration 27 g 4 shock 20 g, 6...9 ms 5 mtbf 880000 h 6 altitude 80000 ft notes: 1. see thermal derating curve 2. case temperature 3. mil-std-883, method 2007, 20-2000 hz 4. mil-std-883, method 2001 5. mil-std-883, method 2002, 0.5 ms 6. per mil-hdbk-217e, quality level b-1, aut environmental at 25c thermal derating all ratings: no heatsink physical data (in mm) . case finish: 1 and 2 amp versions tin plated. 4 amp version and above matte black painted . terminals: tin plated . mass: 20 grams max. (all ratings) this engineering data sheet is designed for initial selection and comparison of products. while every effort is made to ensure the accuracy of all data, each part number, and its application, must be controlled by a product control drawing (pcd). date of issue: 4/10 - 8 - page 4 of 4
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