CC025 Dual-Output-Series Power Modules: 18 Vdc to 36 Vdc Input; 25 W

Transcription

1 Data Sheet CC025 Dual-Output-Series Power Modules: 18 dc to 36 dc Iput; 25 W Features The CC025 Dual-Output-Series Power Modules use advaced, surface-mout techology ad deliver high-quality, compact, dc-dc coversio at a ecoomical price. Optios Isolated case pi Higher accuracy output voltage clamp set poit Short pis: 2.79 mm ± 0.25 mm (0.110 i. ± i.) Heat sik available for exteded operatio Negative logic remote o/off Small size: 71.1 mm x 6 mm x 12.7 mm (2.80 i. x 2.40 i. x 0.50 i.) Efficiecy greater tha 80% Wide operatig temperature rage Low output oise Idustry-stadard piout Metal case 2:1 iput voltage rage Remote o/off (positive logic) UL* Recogized, CS Certified, ad DE Licesed Withi FCC ad CISPR Class radiated limits Two tightly regulated outputs pplicatios Distributed power architectures Telecommuicatios Descriptio The CC025 Dual-Output-Series Power Modules are dc-dc coverters that operate over a iput voltage rage of 18 dc to 36 dc ad provide two regulated outputs. These modules offer low oise levels with idustrystadard piouts i a small footprit. Each highly reliable ad efficiet uit features remote o/off ad curret limit. Each output is idividually regulated by its ow cotrol circuit ad has a idepedet overvoltage clamp. With stadard outputs of ±5, ±12, ad ±15, the CC025 Dual-Output-Series is flexible eough to provide modified stadard uits with ay combiatio of output voltages from 2 to 15. * UL is a registered trademark of Uderwriters Laboratories, Ic. CS is a registered trademark of Caadia Stadards ssociatio.

2 CC025 Dual-Output-Series Power Modules: 18 dc to 36 dc Iput; 25 W Data Sheet bsolute Maximum Ratigs Stresses i excess of the absolute maximum ratigs ca cause permaet damage to the device. These are absolute stress ratigs oly. Fuctioal operatio of the device is ot implied at these or ay other coditios i excess of those give i the operatioal sectios of the data sheet. Exposure to absolute maximum ratigs for exteded periods ca adversely affect device reliability. Parameter Symbol Mi Max Uit Iput oltage (cotiuous) I 50 dc I/O Isolatio oltage: dc Trasiet (1 miute) Operatig Case Temperature TC C Storage Temperature Tstg C Electrical Specificatios Uless otherwise idicated, specificatios apply to all modules over all operatig iput voltage, resistive load, ad temperature coditios. Table 1. Iput Specificatios Parameter Symbol Mi Typ Max Uit Operatig Iput oltage I dc Maximum Iput Curret II, max 3.0 (I = 0 to 36 ; IO = IO, max; see Figure 1.) Irush Trasiet i 2 t s Iput Reflected-ripple Curret, Peak-to-peak 25 mp-p (5 Hz to 20 MHz, 12 µh source impedace; TC = 25 C; see Figure 11 ad Desig Cosideratios sectio.) Iput Ripple Rejectio (120 Hz) 60 db Fusig Cosideratios CUTION: This power module is ot iterally fused. iput lie fuse must always be used. This ecapsulated power module ca be used i a wide variety of applicatios, ragig from simple stad-aloe operatio to a itegrated part of a sophisticated power architecture. To preserve maximum flexibility, iteral fusig is ot icluded; however, to achieve maximum safety ad system protectio, always use a iput lie fuse. The safety agecies require a ormal-blow, dc fuse with a maximum ratig of 5 (see Safety Cosideratios sectio). Based o the iformatio provided i this data sheet o irush eergy ad maximum dc iput curret, the same type of fuse with a lower ratig ca be used. Refer to the fuse maufacturer s data for further iformatio. 2 Lieage Power

3 Data Sheet CC025 Dual-Output-Series Power Modules: 18 dc to 36 dc Iput; 25 W Electrical Specificatios (cotiued) Table 2. Output Specificatios Parameter Device Symbol Mi Typ Max Uit Output oltage Set Poit (I = 28 ; IO = IO, max; TC = 25 C) O1, set O2, set O1, set O2, set O1, set O2, set dc dc dc dc dc dc Output oltage (Over all operatig iput voltage, resistive load, ad temperature coditios util ed of life. See Figure 13.) Output Regulatio: Lie (I = 18 to 36 ) Load (IO1 = IO, mi to IO, max, IO2 = IO, max) Load (IO2 = IO, mi to IO, max, IO1 = IO, max) Temperature (TC = 40 C to +100 C) Output Ripple ad Noise (See Figure 12.): RMS Peak-to-peak (5 Hz to 20 MHz) Output Curret (t IO < IO, mi, the modules may exceed output ripple specificatios.) Output Curret-limit Iceptio (O = 90% of O, om; see Figure 2.) Output Short-circuit Curret (O = 250 m) Efficiecy (I = 48 ; IO = IO, max; TC = 25 C; see Figures 3 ad 13.) O1 O2 O1 O2 O1 O2 IO1 IO2 IO1 IO2 IO1 IO2 η η η dc dc dc dc dc dc % % % m m m mrms mrms mrms mp-p mp-p mp-p % % % Lieage Power 3

4 CC025 Dual-Output-Series Power Modules: 18 dc to 36 dc Iput; 25 W Data Sheet Electrical Specificatios (cotiued) Table 2. Output Specificatios (cotiued) Parameter Device Symbol Mi Typ Max Uit Dyamic Respose (ýio/ýt = 1 /10 µs, I = 28, TC = 25 C): Load Chage from IO = 50% to 75% of IO, max (See Figures 7 to 9.): Peak Deviatio Settlig Time (O < 10% peak deviatio) Load Chage from IO = 50% to 25% of IO, max (See Figures 4 to 6.): Peak Deviatio Settlig Time (O < 10% peak deviatio) m m m ms m m m ms Table 3. Isolatio Specificatios Parameter Mi Typ Max Uit Isolatio Capacitace 1200 pf Isolatio Resistace 10 M¾ Geeral Specificatios Parameter Mi Typ Max Uit Calculated MTBF (IO = 80% of IO, max; TC = 40 C) 2,800,000 hours Weight 113 (4.0) g (oz.) 4 Lieage Power

5 Data Sheet CC025 Dual-Output-Series Power Modules: 18 dc to 36 dc Iput; 25 W Feature Specificatios Uless otherwise idicated, specificatios apply over all operatig iput voltage, resistive load, ad temperature coditios. See Feature Descriptios ad Desig Cosideratios for further iformatio. Parameter Device Symbol Mi Typ Max Uit Remote O/Off (I = 0 to 36 ; ope collector or equivalet compatible; sigal refereced to I( ) termial. See Figures 10, 14, ad Feature Descriptios.): CC025xx-M Positive Logic: Logic LowModule Off Logic HighModule O CC025xx1-M Negative Logic: Logic LowModule O Logic HighModule Off Module Specificatios: O/Off CurretLogic Low O/Off oltage: Logic Low Logic High (Io/off = 0) Ope Collector Switch Specificatios: Leakage Curret Durig Logic High (o/off = 10 ) Output Low oltage Durig Logic Low (Io/off = 1 m) Tur-o Time (IO = 80% of IO, max; O withi ±1% of steady state) Output oltage Overshoot Output Overvoltage Clamp Iput Udervoltage Lockout: Module O Module Off Io/off o/off o/off Io/off o/off O1 O2 O1 O2 O1 O2 ULO ULO m µ ms % Lieage Power 5

6 CC025 Dual-Output-Series Power Modules: 18 dc to 36 dc Iput; 25 W Data Sheet Characteristic Curves CC025CL CC025BK CC025J NORMLIZED OUTPUT CURRENT, I O1 = I O2 () 8-992(C) Figure 1. CC025 Dual-Output-Series Iput Curret ad Normalized Output oltage vs. Iput oltage at Full Load ad TC = 25 C 8-991(C).a Figure 3. CC025 Dual-Output-Series Efficiecy vs. Normalized Output Currets at I = 28 ad TC = 25 C CC025J CC025BK CC025CL m I O = 1 /10 µs t OUTPUT CURRENT NORMLIZED TO FULL LOD, I O () 8-990(C).a Figure 2. CC025 Dual-Output-Series Normalized Output Curret vs. Normalized Output oltage at I = 28 ad TC = 25 C ms TIME, t (0.5 ms/div) (C) Figure 4. CC025 Dual-Output-Series Typical 5 Output oltage Respose to a Step Load Chage from 50% to 25% of IO, max at I = I, om ad TC = 25 C 6 Lieage Power

7 Data Sheet CC025 Dual-Output-Series Power Modules: 18 dc to 36 dc Iput; 25 W Characteristic Curves (cotiued) 50 m 100 m I O = 1 /10 µs t I O t = 1 /10 µs ms ms TIME, t (0.5 ms/div) (C) Figure 5. CC025 Dual-Output-Series Typical 12 Output oltage Respose to a Step Load Chage from 50% to 25% of IO, max at I = I, om ad TC = 25 C TIME, t (0.5 ms/div) (C) Figure 7. CC025 Dual-Output-Series Typical 5 Output oltage Respose to a Step Load Chage from 50% to 75% of IO, max at I = I, om ad TC = 25 C 100 m 100 m I O = 1 /10 µs t I O = 1 /10 µs t ms ms TIME, t (0.5 ms/div) TIME, t (0.5 ms/div) (C).a Figure 6. CC025 Dual-Output-Series Typical 15 Output oltage Respose to a Step Load Chage from 50% to 25% of IO, max at I = I, om ad TC = 25 C (C).b Figure 8. CC025 Dual-Output-Series Typical 12 Output oltage Respose to a Step Load Chage from 50% to 75% of IO, max at I = I, om ad TC = 25 C Lieage Power 7

8 CC025 Dual-Output-Series Power Modules: 18 dc to 36 dc Iput; 25 W Data Sheet Characteristic Curves (cotiued) Test Cofiguratios TO OSCILLOSCOPE m LT EST 12 µh CURRENT PROBE I(+) BTTERY C S 220 µf IMPEDNCE < 20 C, 100 khz I( ) I O t = 1 /10 µs 8-489(C) ms Note: Measure iput reflected-ripple curret with a simulated source impedace (LTEST) of 12 µh. Capacitor CS offsets possible battery impedace. Curret is measured at the iput of the module. TIME, t (0.5 ms/div) Figure 11. Iput Reflected-Ripple Test Setup 8-526(C) Figure 9. CC025 Dual-Output-Series Typical 15 Output oltage Respose to a Step Load Chage from 50% to 75% of IO, max at I = I, om ad TC = 25 C O1(+) COPPER STRIP 0.1 µf SCOPE R LOD1 COMM 0.1 µf SCOPE R LOD2 O, set O2( ) 8-808(C) 0 Note: Use a 0.1 µf ceramic capacitor. Scope measuremet should be made by usig a BNC socket. Positio the load betwee 50 mm ad 75 mm (2 i. ad 3 i.) from the module. 2 0 I O t = 1 /10 µs Figure 12. Output Noise Measuremet Test Setup 1 ms TIME, t (1 ms/div) (C) Figure 10. CC025 Dual-Output-Series Typical Output oltage Rise Time with Remote O/Off at I = I, om, IO = 0.8 (IO, max), ad TC = 25 C 8 Lieage Power

9 Data Sheet CC025 Dual-Output-Series Power Modules: 18 dc to 36 dc Iput; 25 W Test Cofiguratios (cotiued) SUPPLY II CONTCT RESISTNCE I(+) I( ) O1 COM O2 CONTCT ND DISTRIBUTION LOSSES IO LOD LOD 8-863(C).a Note: measuremets are take at the module termials. Whe socketig, place Kelvi coectios at module termials to avoid measuremet errors due to socket cotact resistace. I additio, I( ) is iterally coected to the case. η 2 [ OJ COM]IOJ = J x = 1 [ I ( + ) I ( ) 100 ]II Figure 13. Output oltage ad Efficiecy Measuremet Test Setup Safety Cosideratios For safety-agecy approval of the system i which the power module is used, the power module must be istalled i compliace with the spacig ad separatio requiremets of the ed-use safety agecy stadard, i.e., UL-1950, CS , EN For the coverter output to be cosidered meetig the requiremets of safety extra-low voltage (SEL), the iput must meet SEL requiremets. The power module has extra-low voltage (EL) outputs whe all iputs are EL. The iput to these uits is to be provided with a maximum 5 ormal blow fuse i the ugrouded lead. Iput/Output oltage Reversal CUTION: pplyig a reverse voltage across the module output forward biases a iteral diode. ttemptig to start the module uder this coditio ca damage the module. Desig Cosideratios Iput Source Impedace The power module should be coected to a low acimpedace iput source. Highly iductive source impedaces ca affect the stability of the power module. 33 µf electrolytic capacitor (ESR < 0.7 ¾ at 100 khz) mouted close to the power module helps esure stability of the uit. Note: I( ) is iterally coected to the case for a stadard module. Lieage Power 9

10 CC025 Dual-Output-Series Power Modules: 18 dc to 36 dc Iput; 25 W Data Sheet Feature Descriptios Remote O/Off Two remote o/off optios are available. Positive logic remote o/off turs the module o durig a logic high voltage o the remote ON/OFF pi, ad off durig a logic low. Negative logic remote o/off, code suffix 1, turs the module off durig a logic high ad o durig a logic low. To tur the power module o ad off, the user must supply a switch to cotrol the voltage betwee the o/off termial ad the I( ) termial (o/off). The switch ca be a ope collector or equivalet (see Figure 14). logic low is o/off = 0 to 1.2. The maximum Io/off durig a logic low is 1 m. The switch should maitai a logic low voltage while sikig 1 m. Durig a logic high, the maximum o/off geerated by the power module is 10. The maximum allowable leakage curret of the switch at o/off = 10 is 50 µ. Output Overvoltage Clamp The output overvoltage clamp cosists of cotrol circuitry, idepedet of the primary regulatio loop, that moitors the voltage o the output termials. The cotrol loop of the clamp has a higher voltage set poit tha the primary loop (see Feature Specificatios table). This provides a redudat voltage cotrol that reduces the risk of output overvoltage. Curret Limit To provide protectio i a fault (output overload) coditio, the uit is equipped with iteral curretlimitig circuitry ad ca edure curret limitig for a ulimited duratio. t the poit of curret-limit iceptio, the uit shifts from voltage cotrol to curret cotrol. If the output voltage is pulled very low durig a severe fault, the curret-limit circuit ca exhibit either foldback or tailout characteristics (output-curret decrease or icrease). The uit operates ormally oce the output curret is brought back ito its specified rage. I(+) Groudig Cosideratios I( ) o/off + Io/off ON/OFF O1 COM O2 LOD LOD For modules without the isolated case groud pi optio, the case is iterally coected to the I( ) pi. For modules with the isolated case groud pi, optio 7, the I( ) pi is ot coected to the case (C) Figure 14. Remote O/Off Implemetatio 10 Lieage Power

11 Data Sheet CC025 Dual-Output-Series Power Modules: 18 dc to 36 dc Iput; 25 W Thermal Cosideratios MESURE CSE TEMPERTURE T CENTER OF UNIT WIND TUNNEL WLL CONNECTORS TO LODS, POWER SUPPLIES, ND DTLOGGER, 6.35 (0.25) TLL (8.00) IR- FLOW (4.00) IRFLOW 50.8 (2.00) IR ELOCITY PROBE 12.7 (0.50) MBIENT TEMPERTURE THERMOCOUPLE (8.00) Note: Dimesios are i millimeters ad (iches). Drawig is ot to scale. 9.7 (0.38) 19.1 (0.75) 8-866(C).a Figure 15. Thermal Test Setup The CC025 Dual-Output-Series Power Modules are desiged to operate i a variety of thermal eviromets. s with ay electroic compoet, sufficiet coolig must be provided to help esure reliable operatio of the uit. Heat-dissipatig compoets iside the module are thermally coupled to the case. Heat is removed by coductio, covectio, ad radiatio to the surroudig eviromet. The thermal data preseted is based o measuremets take i a wid tuel. The test setup show i Figure 15 was used to collect data. ctual performace ca vary depedig o the particular applicatio eviromet. Basic Thermal Performace The CC025 Dual-Output-Series Power Modules have a separate power stage for each of the outputs. This meas that the maximum operatig temperature ca be predicted quite closely by treatig each output idividually ad the summig the results. Figures 16 through 19 are used to predict the safe operatig coditio for may differet operatig ad evirometal coditios. The method used to determie the maximum ambiet temperature at a give air velocity is a four-step process: 1. Fid the power dissipated for output 1 by usig the appropriate chart (Figures 16 through 18) for a particular output coditio (IO1). 2. Repeat step 1 for output 2 usig Figures 16 through Fid the total power dissipated by summig the power dissipated o each of the outputs: (PDout1 + PDout2) = PDtotal 4. Use the total power dissipated with Figure 19 to determie the maximum ambiet temperature at differet air velocities. Lieage Power 11

12 CC025 Dual-Output-Series Power Modules: 18 dc to 36 dc Iput; 25 W Data Sheet Thermal Cosideratios (cotiued) Basic Thermal Performace (cotiued) For example, the power module with a 27 iput ad 2.5 output o O1 ad a 2.0 output o O2 will have a power dissipatio of 3.65 W (from Figure 16) plus 2.7 W (from Figure 16) for a total of 6.35 W. Usig Figure 19, it ca be determied that the maximum ambiet temperature at atural covectio that the ca operate at is approximately 59 C. Keep i mid that these are approximatios of the air temperature ad velocity required to keep the case temperature below its maximum ratig. The maximum case temperature at the poit show i Figure 15 must be kept at 100 C or less. ir elocity The air velocity required to maitai a desired maximum case temperature for a give power dissipatio ad ambiet temperature ca be calculated by usig Figure 19 ad the followig equatio: TC, max T θc = PDtotal where θc is the thermal resistace from case-to-ambiet air ( C/W), TC, max is the desired maximum case temperature ( C), T is the ambiet ilet temperature ( C), ad PDtotal is the total power dissipated from the module (W). For example, to maitai a maximum case temperature of 85 C with a ambiet ilet temperature of 55 C ad a power dissipatio of 6.7 W, the thermal resistace is: I = OUTPUT CURRENT, I I = 27 I = 18 O () (C) Figure Output Power Dissipatio vs. Output Curret I = OUTPUT CURRENT, I I = 27 I = 18 O () Figure Output Power Dissipatio vs. Output Curret (C) θc 85 C 55 C W = 4.5 C W This correspods to a air velocity greater tha 0.46 ms 1 (90 fpm) i Figure Lieage Power

13 Data Sheet CC025 Dual-Output-Series Power Modules: 18 dc to 36 dc Iput; 25 W Thermal Cosideratios (cotiued) ir elocity (cotiued) I = I = 27 I = NT CON 0.25 (50) 0.51 (100) 0.76 (150) ELOCITY, ms 2 (200) 1.27 (250) 1 (ft./mi.) 1.52 (300) 1.78 (350) 2.03 (400) (C) OUTPUT CURRENT, I O () Figure 20. Case-to-mbiet Thermal Resistace vs. ir elocity Figure Output Power Dissipatio vs. Output Curret (C) Use of Heat Siks ad Cold Plates The CC025 Dual-Output-Series case icludes throughthreaded M3 x 0.5 moutig holes allowig attachmet of heat siks or cold plates from either side of the module. The moutig torque must ot exceed 0.56 N/m (5 i-lb.). The followig thermal model ca be used to determie the required thermal resistace of the sik to provide the ecessary coolig: ms 1 (400 ft./mi.) 2 ms 1 (200 ft./mi.) 0.51 ms 1 (100 ft./mi.) 0.31 ms 1 (60 ft./mi.) NTURL CONECTION LOCL MBIENT TEMPERTURE, T ( C) 8-988(C) Figure 19. Total Power Dissipatio vs. Local mbiet Temperature ad ir elocity Lieage Power 13 PD Tc l θcs Ts θs where PD is the power dissipated by the module, θcs represets the iterfacial cotact resistace betwee the module ad the sik, ad θs is the sik-to-ambiet thermal impedace ( C/W). For thermal greases or foils, a value of θcs = 0.1 C/W to 0.3 C/W is typical. The required θs is calculated from the followig equatio: θs TC T = θcs PDtotal Note that this equatio assumes that all dissipated power must be shed by the sik. Depedig o the user-defied applicatio eviromet, a more accurate model icludig heat trasfer from the sides ad bottom of the module ca be used. This equatio provides a coservative estimate i such istaces. For further iformatio, refer to the Thermal Eergy Maagemet CC-, CW-, DC-Series 25 W to 30 W Board-Mouted Power Modules Techical Note. T

14 CC025 Dual-Output-Series Power Modules: 18 dc to 36 dc Iput; 25 W Data Sheet Outlie Diagram Dimesios are i millimeters ad (iches). Copper paths must ot be routed beeath the power module stadoffs. Toleraces: x.x ± 0.5 mm (0.02 i.), x.xx ± 0.25 mm (0.010 i.). Note: For stadard modules, I( ) is iterally coected to the case ad the CSE GROUND pi is ot preset. If the CSE GROUND pi is chose, device code suffix 7, the I( ) is ot coected to the case ad the CSE GROUND pi is floatig. Top iew 71.1 (2.80) MX PIN 1 INDICTOR 6 (2.40) MX M3 DC-DC POWER MODULE MDE IN US Side iew 12.7 (0.50) MX 5.8 (0.23) 0.51 (0.020) 2 (0.040) ± 0.08 (0.003) DI SOLDER-PLTED BRSS, 6 PLCES (7 PLCES WITH OPTIONL CSE GROUND) Bottom iew 4.8 (0.19) STNDOFF, 4 PLCES 7.1 (0.28) 5.1 (0.20) 4 CSE PIN OPTIONL 6 (2.40) MX (00) (0.400) 3 I( ) 2 I(+) O2 ( ) (0.200) 50.8 (2.00) 24.1 (0.95) (0.600) 1 ON/OFF MOUNTING INSERTS M3 x 0.5 THROUGH, 4 PLCES CO M 6 O1 (+) (0.500) (0.800) 11.4 (0.45) 3.8 (0.15) 48.3 (1.90) ± 0.38 (2.500 ± 0.015) 71.1 (2.80) MX 8-755(C).b 14 Lieage Power

15 Data Sheet CC025 Dual-Output-Series Power Modules: 18 dc to 36 dc Iput; 25 W Recommeded Hole Patter Compoet-side footprit. Dimesios are i millimeters ad (iches). Recommeded hole size for pi: 1.27 mm (0.050 i.). CSE OUTLINE M3 x 0.5 CLERNCE HOLE 4 PLCES (OPTIONL) 6 (2.40) MX (0.500) (0.95) (0.600) (0.200) (2.00) (00) (0.400) (0.20) CSE PIN OPTIONL 11.4 (0.45) 3.8 (0.15) 48.3 (1.90) ± 0.38 (2.500 ± 0.015) 71.1 (2.80) MX 8-755(C).b Lieage Power 15

16 CC025 Dual-Output-Series Power Modules: 18 dc to 36 dc Iput; 25 W Data Sheet Orderig Iformatio Table 4. Orderig Iformatio Table Iput oltage Output oltage Output Power Remote O/Off Logic Device Code Comcode ±5 25 W positive ±12 25 W positive ±15 25 W positive Optioal features may be ordered usig the device code suffixes show below. To order more tha oe optio, list suffixes i umerically descedig order followed by the -M suffix, idicatig metric (M3 x 0.5 heat sik hardware). The heat siks desiged for this package have a M prefix, i.e., MHSTxxx45 ad MHSLxxx45 (see Thermal Eergy Maagemet CC-, CW-, DC-, ad DW-Series 25 W to 30 W Board-Mouted Power Modules Techical Note). Table 5. Optios Table Optio Device Code Suffix Short pis: 2.79 mm ± 0.25 mm 8 (0.110 i. ± i.) Isolated case groud pi 7 Negative logic remote o/off 1 Please cotact your Lieage Power ccout Maager or Field pplicatio Egieer for pricig ad availability. sia-pacific Headquarters Tel: World W ide Headquarters Lieage Power Corporatio 3000 Skylie Drive, Mesquite, TX 75149, US (Outsid e U.S..: ) techsupport1@lieagepower.com Europe, M iddle-east ad fric a He adquarters Tel: Idia Headquarters Tel: Lieage Power reserves the right to make chages to the product(s) or iformatio cotaied herei without otice. No liability is assumed as a result of their use or applicatio. No rights uder ay patet accompay the sale of ay such product(s) or iformatio Lieage Power Corporatio, (Mesquite, Texas) Iteratioal Rights Reserved. DS97-425EPS (Replaces DS97-424EPS)