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innoline dc/dc-converter with 3 year warranty r-7xxx en-60950-1 certified 2, 3, 4 amp sip12 vertical & horizontal non-isolated synchronous rectification design adjustable output voltage 2, 3, 4amp adjustable positive step down integrated switching regulator over load protection (125% full load typical) remote on/off control(ground off) wide input range ul94v-0 package material continuous short circuit protection (very low short current iin sc<50ma) input voltage range 4.5v~28v efficiency to 97 % features selection guide part input nominal vout output efficiency (%) number range output voltage adjust range current min. vin 12v max. vin sip12 (v) (v) (v) (a) r-723.3x 4.5 ? 28 3.3 2.5 ? 5.5 2 95 93 89 r-725.0x 6.5 ? 28 5.0 3.0 ? 5.5 2 96 95 91 r-726.5x 8.5 ? 28 6.5 5.0 ? 8.0 2 97 96 93 r-729.0x 12 ? 28 9.0 7.0 ? 11 2 96 - 93 r-7212x 15 ? 28 12 10 ? 14 2 97 - 95 r-7215x 19 ? 28 15 13 ? 17 2 97 - 96 r-733.3x 4.5 ? 28 3.3 2.5 ? 5.5 3 94 93 89 r-735.0x 6.5 ? 28 5.0 3.0 ? 5.5 3 95 95 92 r-736.5x 8.5 ? 28 6.5 5.0 ? 8.0 3 97 96 93 r-739.0x 12 ? 28 9.0 7.0 ? 11 3 96 - 94 r-7312x 15 ? 28 12 10 ? 14 3 97 - 96 r-7315x 19 ? 28 15 13 ? 17 3 97 - 96 r-743.3x 4.5 ? 28 3.3 2.5 ? 5.5 4 93 92 88 r-745.0x 6.5 ? 28 5.0 3.0 ? 5.5 4 95 94 91 r-746.5x 8.5 ? 28 6.5 5.0 ? 7.5 4 96 96 93 note: vin-vout 1.5v~4.0v depending on vout if adjust function is used! suffix x: (see mechanical drawing for details) x = p pins vertical through hole x = d pins bent for horizontal through hole mounting the r-7xxx series is a high performance 2.5v to 15v , 2amp to 4amp,12-pin sip (single in-line package), integrated switching regulator (isr). the synchronous - rectified design yields excellent efficiencies up to 97%. short circuit protection reduces the short circuit input current to under 50ma . description rohs 2011/65/eu 6/6 refer to application notes www.recom-power.com i-55 rev: 2/2016
characteristics conditions min. typ. max. output voltage range all series 2.5 17v output current r-72xxp/d 0.2 2.0a r-73xxp/d 0.3 3.0a r-74xxp/d 0.4 4.0a output current limit r-72xxp/d 2.5 3.0a r-73xxp/d 3.75 4.25a r-74xxp/d 5.0 5.5a short circuit input current all series 50 100ma short circuit protection continuous, automatic recovery output voltage accuracy (at 100% load) all series 1% 2% line voltage regulation (vin = min. to max. at full load) all series 0.5 1.0% load regulation (10 to 100% full load) all series 0.5 1.0% ripple & noise all series 40mvp-p 70mvp-p transient response (see note 1) 50% load change ? 100s 200s vout over / undershoot 100mv remote on / off (see note 2) open or high (power on) 4.5 28v low (power off) 0.8v max capacitance load with normal start-up time, no external diodes 200f with <1 second start up time + diode protection circuit 6800f switching frequency 270 300 330khz shutdown current on / off pin pulled low 100a quiescent current vin = min. to max. at 0% load 30ma operating temperature range -40c +85c operating case temperature +110c storage temperature range -40c +125c case material non-conductive black plastic potting material epoxy (ul94v-0) thermal impedance natural convection 25c/w internal power dissipation ta < 60c 1.4w package weight 9g packing quantity 15 pcs per tube mtbf (nominal vout, 100% load) tamb. = +25c 749 x 103hours tamb. = +85c 150 x 103hours en general safety report: spclvd1301028-1 en60950-1:2006 + a12:2011 r-7xxx r-7xxxp_d series specifications (refer to the standard application circuit, ta: 25c) innoline dc/dc-converter notes: 1. requires a 100f electrolytic or tantalum output capacitor for proper operation in all applications (the capacitor to be plac ed as close as possible to the output pins). 2. on / off pin driven by ttl (logic gate), open-collector bipolar transistor or open-drain mosfet. output current vs input voltage "4

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2
/11m how to calculate the max output current the internal power dissipation(p d )follows the equation: p d = io vo (1- ) io = p d / vo (1- ) where p d = internal power dissipation io = output current vo = output voltage = efficiency example: r-745.0p , at vin = 28vdc , vo = 5vdc , =91% (see "selection guide" table) (a) when ta = 60c , p d = 1.4 watt (see beside diagram) io = 1.4(w) / 5(v) (1-0.91) = 3.11(a) (b) when ta = 85c , p d = 1 watt (see beside diagram) io = 1(w) / 5(v) (1-0.91) = 2.222(a) ( c) at vin = 12vdc efficiency = 94% (see "selection guide" table) when ta = 85c , p d = 1 watt (see beside diagram) io = 1(w) / 5(v) (1-0.94) =3.33(a) } detailed information see application notes chapter "mtbf" i-56 www.recom-power.com rev: 2/2016
r-7xxx r-7xxxp_d series innoline dc/dc-converter characteristics 72
- 72
-1 - -9:- -9#$#- -9- -9- -- -9$- -9- - 72
- 72
-1 - #$#- - -- $- - r-72xx / r-73xx ripple vs vin r-74xx ripple vs vin 8!!*
*3 8!!*
*3-1 - #$#- - -- $- - - 8!!*
*3 8!!*
*3-1 - -9#$#- -9- -- -9$- - r-72xx / r-73xx efficiency vs vin r-74xx efficiency vs vin 8!!*
*3 # : 8!!*
*3-1)-95 $- #$#- $- - 8!!*
*3 # : 8!!*
*3-1)-95< - #$#- $- - r-72xx / r-73xx / r-74xx efficiency / load vin=min r-72xx / r-73xx / r-74xx efficiency / load vin=max www.recom-power.com i-57 rev: 2/2016
5/ +/ ;$ $ ;$ 2 5/ +/ ; 2 ;$ $ ;$ 2 innoline dc/dc-converter emc en55022 filter suggestion r-7xxx r-7xxxp_d series i-58 www.recom-power.com rev: 2/2016 package style and pinning (mm) pin connections pin # name description 1 on / off input pin : active low (less than 0.8v) to disable the device 2, 3, 4 vin power input 5, 6, 7, 8 gnd input and output ground (common) 9 , 10, 11 vout power output 12 vout-adj with external resistors r1,r2 to selected output voltage a# ? #: $ $ $ $ #$ $# :$ $ a# ? $ $ $ #: $ $ $ #$ :$ $ 456 $8 456 $ $# 5"q$ :&/( :&/( sip12 pin package tolerance: xx.x 0.5mm xx.xx 0.25mm class a class b vin= 24vdc vin= 24vdc c1 and c2 l2 33f 0.45mh cmc l1 l2 2mh 0.45mh cmc c1 and c2 c3 c3 c4 33f 10f 10f 1nf/2kv
r-7xxx www.recom-international.com i-59 rev: 2/2016 standard application circuit - - 6 ;#; :;; $gg gg 2gg 7 ",d1, 7 ",d1 ;;; %& 2 && f n %& 8 79 <$ 7
+
, add a blocking diode to vout if current can flow backwards into the output, as this can damage the converter. protection diodes are required for high capacitive loads. refer to r-5xxxa datasheet (see optional diode protection circuit) for circuit suggestions. innoline dc/dc-converter table 1: adjustment resistor values r-7xxxp_d series 2adc r-723.3p/d r-725.0p/d r-726.5p/d r-729.0p/d r-7212p/d r-7215p/d 3adc r-733.3p/d r-735.0p/d r-736.5p/d r-739.0p/d r-7312p/d r-7315p/d 4adc r-743.3p/d r-745.0p/d r-746.5p/d vout (nominal) 3.3vdc 5.0vdc 6.5vdc 9.0vdc 12vdc 15vdc vout (adj) r1 r2 r1 r2 r1 r2 r1 r2 r1 r2 r1 r2 2.5 8.5k 3.0 33k 470 3.2 110k 1.6k 3.3 2.2k 3.4 36k 3.0k 3.6 11k 4.7k 3.9 4.7k 8.5k 4.5 1.6k 30k 4.9 820 220k 5.0 680 11k 5.1 560 28k 12k 5.5 190 2.6k 20k 6.0 47k 6.5 7.0 4.5k 13k 7.5 2.2k 8.0 31k 9.0 10 2.2k 20k 11 390 47k 12 13 2.4k 36k 14 390 76k 15 16 2.6k 17 860 18 the product information and specifications are subject to change without prior notice. recom products are not authorized for us e in safety-critical applications (such as life support) without recoms explicit written consent. a safety-critical application is defined as an applica tion where a failure of a recom product may reasonably b e expected to endanger or cause loss of life, inflict bodily harm or damage property. the buyer shall indemnify and hold harmless recom, its affiliated companies and its representatives against any damage claims in connecti on with the unauthorized use of recom products in such safety-critical applications.

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