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 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 MHB150-48s05 MHB150-48s12 MHB150-48s24 5v 12v 24v 150w 0 ~ 30a 0 ~ 12.5a 0 ~ 6.25a 100mvp-p power up: 34vdc, power down: 32.5vdc 30000uf 86% 48vdc 36 ~ 75vdc 100vdc 150mvp-p 12500uf 89% 240mvp-p 6250uf 89% 1.0% 0.2% 0.2% 500khz 10% 25ma 3.7a 3.6a 3.6a 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 . mil-hdbk-217f (25 ) typ 57.9*61 mm (2.28 "*0.5") (l*w*h) *12.7 "*2.40 100g 1. all parameters not specially mentioned are measured at 48vdc input, ra ted 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 outpu t. 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:MHB150-spec 2011-09-08 150w 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 : MHB150 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 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 working temperature (typ.)
the MHB150 series allow the user to switch the power on and off electronicall y by their remote on/off feature. high singal here disable output example control circuit(positive logic) -vin(pin4) MHB150 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. 150w dc-dc half-brick regulated single output converter MHB150 series remote on/off control mechanical specification unit:inch[mm] file name:MHB150-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] the MHB150 series are available with "positive logic" (standard) or "ne gative logic" (option).
external output trimming +vin (pin1) +vin (pin1) +vout (pin9) +vout (pin9) -vin (pin4) MHB150 MHB150 -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 (MHB150-48s05) 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 (MHB150-48s05) 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 150w dc-dc half-brick regulated single output converter MHB150 series file name:MHB150-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-150 series is -40 c to +100 c. wh en operate the mhb-150 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-150 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 150w dc-dc half-brick regulated single output converter MHB150 series file name:MHB150-spec 2011-09-08 example: what is the minimum airflow necessary for a MHB150-48s12 operates at nomi nal line, an output current of 12.5a, and a maximum ambient temperature of 40 ? solution: given: vin=48vdc, vo=12vdc, io=12.5a, (unit efficiency)=89% determine power dissipation (p ): p =12 12.5 (1-0.89)/0.89=18.54 watts determine airflow: given: p =18.54w and ta=40 check thermal curve above: minimum airflow= 500 ft./min. verifying: the maximum temperature rise 18.54 2.96=54.88 the maximum case temperature 94.88 <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 150w dc-dc half-brick regulated single output converter MHB150 series file name:MHB150-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 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. MHB150-48s =05,12,24 c1 c2 1000pf 1000pf 47uf/100v esr<0.17 47uf/100v esr<0.17 c3 c4 l1 3.4uh heat sink order no.: m-c308 m-c091 m-c092 thermal pad: 56.9x60x0.25mm screw: smp+sw m3x8l 150w dc-dc half-brick regulated single output converter MHB150 series file name:MHB150-spec 2011-09-08 heatsink assembly MHB150 c3 c4 +vin -vin lo ad +vout -vout +vin -vin +vout -vout case l1 c1 c2
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