specification model dc voltage current range rated power output line regulation load regulation switching frequency (typ.) external trim adj. range (typ.) voltage range surge voltage (100ms max.) under voltage lockout efficiency (typ.) input working temperature (typ.) remote control output trimming working humidity storage temp., humidity temp. coefficient case material mtbf dimension others note weight output over current output over voltage (typ.) dc current full load no load 5v MHB100-24s05 MHB100-24s12 MHB100-24s24 MHB100-48s05 mhb 100-48s12 MHB100-48s24 12v 24v 5v 12v 24v 100w 0 ~ 20a 0 ~ 8.3a 0 ~ 4.17a 0 ~ 20a 0 ~ 8.3a 0 ~ 4.17a 100mvp-p 20000uf 84% power up: 17vdc, power down: 16vdc 150mvp-p 8300uf 87% 240mvp-p 4170uf 87% 100mvp-p 20000uf 86% 48vdc 36 ~ 75vdc 100vdc power up: 34vdc, power down: 32.5vdc 150mvp-p 8300uf 89% 240mvp-p 4170uf 88% 1.0% 0.2% 0.2% 500khz 10% 18 ~ 36vdc 50vdc 5020ma 50ma 4880ma 4905ma 2480ma 50ma 2445ma 2465ma 110 ~ 140% rated output power protection type : can be continuous, recovers automatically after fau lt condition is removed -40 ~ +100 ; thermal shutdown at 100 5 of case temperature (please refer to " thermal curve") please refer to "remote on/off control" for details 10%, please refer to "external output trimming" for details 0% ~ 95% rh max. -55 ~ +105 , 0 ~ 95% rh 0.03%/ (0~60 aluminum 900k hrs typ. mil-hdbk-217f (25 ) 57.9*61 mm (2.28 "*0.5") (l*w*h) *12.7 "*2.40 95g 1. all parameters not specially mentioned are measured at 24,48vdc inpu t, rated load and 25 of ambient temperature. 2. ripple & noise are measured at 20mhz of bandwidth by using a 12" twisted pair -wire terminated with a 1uf ceramic & 10uf tantalum capacitor across outp ut. 3. the power supply need to connect "+vout" to "+r.s" and "-vout" to "-r.s". 4. the power supply is considered a component which will be installed into a fi nal equipment. the final equipment must be re-confirmed that it still mee ts emc directives. for guidance on how to perform these emc tests, please refer to ?emi testing of c omponent power supplies.? file name:MHB100-spec 2011-09-08 100w dc-dc half-brick regulated single output converter half-brick size (2.28" 2.4" 0.5") with industry standard pin out 2:1 wide input range protections: short circuit / over current / over voltage / over temperat ure high efficiency up to 89% 1500vdc i/o isolation built-in remote on/off control built-in remote sense trimming output 10% five-sided shield metal case optional heat sinks for extended operating temperature output 2.5v/3.3v/15v available approvals: ul / cul / ce 3 years warranty function features : MHB100 series ripple & noise (max.) note.2 voltage accuracy note.3 isolation voltage isolation resistance i/p-o/p:1500vdc, i/p-case:1500vdc, o/p-case:1500vdc i/p-o/p:100m ohms / 500vdc / 25 / 70% rh environment protection function rated dc input 24vdc output short circuit filter pi-network 115 ~ 140% rated output voltage protection type : over current limiting, recovers automatically aft er fault condition is removed protection type : output voltage clamp compliance to (please refer to "emc suggestion circuit") en55022 (cispr22) class a with external components compliance to en61000-4-2,3,4,5,6,8; en55024, light industry le vel, criteria a safety & operating emc (note 4) safety standards ul60950-1 approved emc immunity emc emission external capacitive load (max.) 100 5 of case temperature over temperature
the MHB100 series allow the user to switch the power on and off electronicall y by their remote on/off feature. the MHB100 series are available with "positive logic" (standard) or "ne gative logic" (option). high singal here disable output example control circuit(positive logic) -vin(pin4) MHB100 r.c.(pin2) logic table logic state(pin2) negative logic positive logic logic low-switch closed power off(<0.8vdc) logic high-switch open power on(open circuit) power on(<0.8vdc) power off(open circuit) note: 1.logic compatibility : r.c.(pin2) ~ -vin(pin4). 2.suffix "n" to the model number with negative logic remote on/off. 100w dc-dc half-brick regulated single output converter MHB100 series remote on/off control mechanical specification unit:inch[mm] file name:MHB100-spec 2011-09-08 pin no. assignment r.c. -vout trim 2 5 7 +vout case -r.s. +r.s. 9 3 6 8 +vin -vin assignment assignment assignment 1 4 pin no. pin no. pin no. side view 0.18 min. [4.6] 0.50 [12.7] r1.50 0.08 [2.03] 0.04 [1.02] bottom view mounting inserts m3*0.5 all dimensions in inches [mm] tolerance inches: x.xx= 0.02 , x.xxx= 0.010 millimeters: x.x= 0.5 , x.xx= 0.25 1.90 [48.3] 2.40 [61.0] 2.00 [50.8] 1.40 [35.56] 0.60 [15.24] 1 9 2 8 7 3 6 4 5 2.28 [57.9]
external output trimming +vin (pin1) +vin (pin1) +vout (pin9) +vout (pin9) -vin (pin4) MHB100 MHB100 -vin (pin4) -vout (pin5) -vout (pin5) trim (pin7) trim (pin7) where: is the external resistor r trim-up in kohm. figure 1 : trim-up voltage setup figure 2 : trim-down voltage setup where: is the external r trim-down resistor in kohm. r trim-up r trim-down r -load r -load the value of defined as: r trim-up the value of defined as: r trim-down (k ) (k ) (v -v , nom) o o (v , nom-v ) o o (r1-r2 (v -v , nom)) o o (r1-r2 (v , nom-v )) o o = = r trim-up r trim-down vo,nom is the nominal output voltage. vo is the desired output voltage. r1 and r2 are inside the unit and list in table 1 output voltage(v) r1 (kohm) r2 (kohm) 5v 5.8 3.3 12v 18.945 4.636 24v 41.442 6.977 table 1 for example, to trim-up the output voltage of 5.0v model (MHB100-48s05) by 8% to 5.4v, is calculated r trim-up as follows: vo - vo,nom = 5.4 -5.0 = 0.4v r1 = 5.8 kohm r2 = 3.3 kohm vo,nom is the nominal output voltage. vo is the desired output voltage. r1 and r2 are inside the unit and list in table 2. output voltage(v) r1 (kohm) r2 (kohm) 5v 5.8 5.32 12v 86.45 60.1 24v 430 120 table 2 for example, to trim-down the output voltage of 5.0v model (MHB100-48s05) by 8% to 4.6v, is r trim-down calculated as follows : vo,nom - vo = 5.0 - 4.6 = 0.4 v r1 = 5.8 kohm r2 = 5.32 kohm ) ) (k (k 11.2 9.18 0.4 0.4 5.8-3.3 0.4 5.8-5.32 0.4 = = = = r trim-up r trim-down 100w dc-dc half-brick regulated single output converter MHB100 series file name:MHB100-spec 2011-09-08
0 5 10 15 20 25 30 35 40 45 50 0 10 20 30 40 50 60 70 80 90 100 power disspated, p d (watts ) na tural co nvection 2 0 ft. /min . (0.1 m/s) 1 00 f t./min. (0 .5 m/s) 2 00 f t./min. (1 .0 m/s) 3 00 f t./min. (1 .5 m/s) 4 00 f t./min. (2 .0 m/s) 5 00 f t./min. (2 .5 m/s) 6 00 f t./min. (3 .0 m/s) 7 00 f t./min. (3 .5 m/s) 8 00 f t./min. (4 .0 m/s) thermal curve the operating case temperature range of mhb-100 series is -40 c to +100 c. wh en operate the mhb-100 series, proper de-rating or o o cooling is needed. the maximum case temperature under any operating condition should not b e exceed 100 c. the following curve is the de-rating curve of mhb-100 series without heat sink. o power dissipated vs amb ient temperature and air flow without heatsink ambi ent temperature, ta ( ) air flow rate air flow rate typical rca typical rca rca : thermal resistance from case to ambience natural convection 20ft./min. (0.1m/s) 7 . 1 2 / w 100 ft./min. (0.5m/s) 500 ft./min. (2.5m/s) 6 . 2 1 / w 2 . 9 6 / w 200 ft./min. (1.0m/s) 600 ft./min. (3.0m/s) 5 . 1 7 / w 2 . 5 3 / w 300 ft./min. (1.5m/s) 700 ft./min. (3.5m/s) 4 . 2 9 / w 2 . 3 7 / w 400 ft./min. (2.0m/s) 800 ft./min. (4.0m/s) 3 . 6 4 / w 2 . 1 9 / w 100w dc-dc half-brick regulated single output converter MHB100 series file name:MHB100-spec 2011-09-08 example: what is the minimum airflow necessary for a MHB100-48s12 operates at nomi nal line, an output current of 8.3a, and a maximum ambient temperature of 40 ? solution: given: vin=48vdc, vo=12vdc, io=8.3a, (unit efficiency)=89% determine power dissipation (p ): p =12 8.3 (1-0.89)/0.89=12.31 watts determine airflow: given: p =12.31w and ta=40 check thermal curve above: minimum airflow= 300 ft./min. verifying: the maximum temperature rise 12.31 4.29=52.8 the maximum case temperature 92.8 <100 where: the rca is thermal resistance from case to ambience. the ta is ambient temperature and the tc is case temperature. d d d p =pi-po=po(1- )/ t = p rca= tc=ta+ t= d d
case heat sink (optional) unit:mm 100w dc-dc half-brick regulated single output converter MHB100 series file name:MHB100-spec 2011-09-08 58 58 48.2 48.2 12.7 25.4 2.7 2.7 50.8 50.8 48.20 cr0.3 2.-8.50 21 8-2 r1 5.-7.80 0.30 3 0.3 60.70 50.80 4- 3.3 61 61 58 model no.: m-c308 (vertical fins) model no.: m-c091(horizontal fi ns) model no.: m-c092 (horizontal fins) rca: 3.90 / w (typ.), at natural convection 1.74 / w (typ.), at 100ft./min.(lfm) 1.33 / w (typ.), at 200 ft./min.(lfm) 1.12 / w (typ.), at 300 ft./min.(lfm) 0.97 / w (typ.), at 400 ft./min.(lfm) rca: 4.70 / w (typ.), at natural convection 2.89 / w (typ.), at 100ft./min.(lfm) 2.30 / w (typ.), at 200 ft./min.(lfm) 1.88 / w (typ.), at 300 ft./min.(lfm) 1.59 / w (typ.), at 400 ft./min.(lfm) 0.95 / w (typ.), at 400 ft./min.(lfm) rca: 3.00 / w (typ.), at natural convection 1.44 / w (typ.), at 100ft./min.(lfm) 1.17 / w (typ.), at 200 ft./min.(lfm) 1.04 / w (typ.), at 300 ft./min.(lfm)
emc suggestion circuit screw heat sink order no.: m-c308 m-c091 m-c092 thermal pad: 56.9x60x0.25mm screw: smp+sw m3x8l washer heat sink thermal pad or suitable thermal grease 1 2 3 4 required external components to meet en55022 class a conducted emis sion are as below: model no. MHB100-24s MHB100-48s =05,12,24 c1 c2 2200pf n.c 1000pf 1000pf 220uf/50v esr<0.13 220uf/50v esr<0.13 47uf/100v esr<0.17 47uf/100v esr<0.17 c3 c4 l1 3.4uh 3.4uh 100w dc-dc half-brick regulated single output converter MHB100 series file name:MHB100-spec 2011-09-08 heatsink assembly MHB100 c3 c4 +vin -vin lo ad +vout -vout +vin -vin +vout -vout case l1 c1 c2
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