for more information, please visit the product page. ????????? ?????????????????? rev. page date rev. page date description: dc-dc converter 1 of 5 11/2009 20050 sw 112 th ave. tualatin, oregon 97062 phone phone 503.612.2300 fax www.v-infinity.com fax 503.612.2383 part number: pk25 features industry standard pin out wide 2:1 input range fully isolated output voltage trimmable low ripple & noise over-current protection over-voltage protection output on/off control hi-pot tested constant switching frequency high efficiency compact size 2.56x2.0x0.375 3 year warranty model 1 output input output output output ripple & noise 2 efficiency power voltage voltage current current mv p-p (typ.) (max) (min) (max) pk25-d5-s3.3 10.6w 4.5-9vdc 3.3vdc 0a 3.2a 75 73% pk25-d5-s5 16.0w 4.5-9vdc 5vdc 0a 3.2a 75 75% pk25-d5-s12 20.4w 4.5-9vdc 12vdc 0a 1.7a 120 77% pk25-d5-s15 21.0w 4.5-9vdc 15vdc 0a 1.4a 150 77% pk25-d5-d5 16.0w 4.5-9vdc 5vdc 0a 1.6a 100/100 75% pk25-d5-d12 20.4w 4.5-9vdc 12vdc 0a 0.85a 120/120 77% pk25-d5-d15 21.0w 4.5-9vdc 15vdc 0a 0.7a 150/150 77% pk25-d12-s3.3 13.2w 8-16.5vd 3.3vdc 0a 4.0a 75 83% pk25-d12-s5 20.0w 9-18vdc 5vdc 0a 4.0a 75 85% pk25-d12-s12 25.2w 9-18vdc 12vdc 0a 2.1a 120 89% pk25-d12-s15 25.5w 9-18vdc 15vdc 0a 1.7a 150 89% pk25-d12-d5 20.0w 9-18vdc 5vdc 0a 2.0a 100/100 80% pk25-d12-d12 25.2w 9-18vdc 12vdc 0a 1.05a 120/120 86% pk25-d12-d15 25.5w 9-18vdc 15vdc 0a 0.85a 150/150 86% pk25-d24-s3.3 13.2w 18-36vdc 3.3vdc 0a 4.0a 75 83% pk25-d24-s5 20.0w 18-36vdc 5vdc 0a 4.0a 75 85% pk25-d24-s12 25.2w 18-36vdc 12vdc 0a 2.1a 120 89% pk25-d24-s15 25.5w 18-36vdc 15vdc 0a 1.7a 150 90% pk25-d24-d5 20.0w 18-36vdc 5vdc 0a 2.0a 100/100 82% PK25-D24-D12 25.2w 18-36vdc 12vdc 0a 1.05a 120/120 86% pk25-d24-d15 25.5w 18-36vdc 15vdc 0a 0.85a 150/150 86% pk25-d48-s3.3 13.2w 32-72vdc 3.3vdc 0a 4.0a 75 83% pk25-d48-s5 20.0w 32-72vdc 5vdc 0a 4.0a 75 85% pk25-d48-s12 25.2w 32-72vdc 12vdc 0a 2.1a 120 90% pk25-d48-s15 25.5w 32-72vdc 15vdc 0a 1.7a 150 90% pk25-d48-d5 20.0w 32-72vdc 5vdc 0a 2.0a 100/100 82% pk25-d48-d12 25.2w 32-72vdc 12vdc 0a 1.05a 120/120 86% pk25-d48-d15 25.5w 32-72vdc 15vdc 0a 0.85a 150/150 86% note: 1. all models (excluding the 5 v dc input, d5) are also available in an extended temperature range of -40c~85c. for these models, append m to the model number, e.g. pk25-d12-s3.3m. 2. ripple & noise measured with a 20mhz bandwidth, off a 10uf electrolytic and a 0.1uf ceramic cap in parallel at the ouptut. discontinued
for more information, please visit the product page. ?????????????????? rev. page date description: dc-dc converter 2 of 5 11/2009 20050 sw 112 th ave. tualatin, oregon 97062 phone phone 503.612.2300 fax www.v-infinity.com fax 503.612.2383 part number: pk25 input parameter conditions/description min nom max units input voltage range 4.5 5 9 vdc 9 12 18 vdc 18 24 36 vdc 36 48 72 vdc switching frequency constant 300 khz output parameter conditions/description min nom max units set point accuracy -2% +2% line regulation all models -0.5% +0.5% load regulation single output models -1.0% +1.0% dual output models (10% min. load) -2.5% +2.5% minimum load 0.0 amps ripple and noise 20 mhz bandwidth 1.0% vout mvpp protection parameter conditions/description min nom max units over-current continuous auto recovery 3 105% 135% over-voltage internally zener clamped 3 110% 140% note : 3 continuous operation in a protected state may compromise long-term reliability. general parameter conditions/description min nom max units efficiency typical at full load 80% 89% dielectric withstand input/case, input/output, output/case 500 vac insulation resistance at 500 vdc 100m ohms agency standards approved to ul1950, en60950, cispr22, ce case material sts material flammability 94 v-0 weight 65 grams (2.29) (ounces) mtbf mil-hdbk-217f 470k hours operating temperature regular models -20 +71 c extended temperature models -40 +85 c storage temperature -40 +105 c humidity operating (non-condensing) 20% 90% rh washability not intended for aqueous wash discontinued
for more information, please visit the product page. ?????????????????? rev. page date description: dc-dc converter 3 of 5 11/2009 20050 sw 112 th ave. tualatin, oregon 97062 phone phone 503.612.2300 fax www.v-infinity.com fax 503.612.2383 part number: pk25 dimensions (mm) all dimensions are in inches (mm). top view outside edge label in out 0.2 (5.08) 0.6 (15.24) 0.2 (5.08) 7- 0.05(1.3) 0.3 (7.62) 0.3 (7.62) 0.2 (5.08) cl 2.2 (55.88) 0.2 (5.08) 0.6 (15.24) 0.2 (5.08) 0.19 (4.68) cl cl 0.04 (1.0) 0.18 (4.56) 1.6 (41.0) 2.2 (55.88) 0.37 (9.5) 1 2 3 4 5 6 7 2.56 (65.0) 2.0 (50.0) 0.3 (7.62) 0.3 (7.62) 0.2 (5.08) 0.19 (4.68) 1 2 3 4 5 6 7 single output 1. +vin 2. -vin 3. cnt 4. +vout 5. no pin 6. g nd 7. trim dual output pin assignments 1. +vin 2. -vin 3. cnt 4. +vout 5. c om 6. -vout 7. trim discontinued
for more information, please visit the product page. ?????????????????? rev. page date description: dc-dc converter 4 of 5 11/2009 20050 sw 112 th ave. tualatin, oregon 97062 phone phone 503.612.2300 fax www.v-infinity.com fax 503.612.2383 part number: pk25 application notes 1. output trimming the output voltages are preset to nominal values as indicated by the models table at the factory. if desired, the output voltage may optionally be trimmed to a different value (+/- 10%) with external resistors and/or potentiometer as shown below. to trim the output voltage with fixed resistors, the output voltage can be calculated as follows. trim-up trim-down figure 2: trim-up voltage setup figure 3: trim-down voltage setup the value of r trim-up is defined as: the value of r trim-down is defined as: where: r trim-up is the external resistor in k . v o is the where: r trim-down is the external resistor in k . v o is the desired output voltage. r 1 and r 2 and v r are internal to desired output voltage. r 1 and r 2 and v r are internal to the unit and are defined in table 1. for example to trim up the unit and are defined in table 1. for example to trim down the pk25-d5-d12 up by 5% to 25.2 v, r trim-up is calculated the pk25-d5-d12 down by 5% to 22.8 v, r trim-down is calculated as follows: as follows: r load 10kw trimpot +vin -vin -vo trim +vo figure 1. trimming with external potentiometer 2.5 2.5 2.5 2.5 2.5 2.5 2.5 1.25 vr (v) 2.43 2.43 2.43 2.49 2.49 2.43 2.43 2.49 r2 (k) model *pk25-d5-s3.3 pk25-dxx-d15 pk25-dxx-d12 pk25-dxx-d5 pk25-dxx-s15 pk25-dxx-s12 pk25-dxx-s5 pk25-dxx-s3.3 0.787 26.7 21 7.5 12.7 9.31 2.43 4.12 r1 (k) table 1 r load r trim-up +vin -vin +vo trim -vo r load r trim-down +vin -vin +vo trim -vo v o = 25.2 / r 1 = 21 k / r 2 = 2.43 k / v r = 2.5 = = r trim_up 47.94 k 2.43 (25.2 - 2.5) - 2.5 21 2.5 21 2.43 v o = 22.8 / r 1 = 21 k / r 2 = 2.43 k / v r = 2.5 = = r trim_down 326.68 k 2.5 - 2.1 (22.8 - 2.5) 2.43 (22.8 - 2.5) 21 2.43 = r trim_up r 2 (v o - v r ) - v r r 1 v r r 1 r 2 = r trim_down v r r 1 - (v o - v r ) r 2 (v o - v r ) r 1 r 2 discontinued
for more information, please visit the product page. ????????? rev. page date description: dc-dc converter 5 of 5 11/2009 20050 sw 112 th ave. tualatin, oregon 97062 phone phone 503.612.2300 fax www.v-infinity.com fax 503.612.2383 part number: pk25 2. on/off control (cnt) the ground terminal of remote on/off circuit is connected with -v input terminal. between cnt and -v input: output voltage is on at low level or short circuit (0~1.2 v). between cnt and -v input: output voltage is off at high level or open circuit (2.4~5.5 v). when cnt terminal is low level, fan out current is 1 ma typical. when vcc is applied, use 5 v vcc 24 v. when remote on/off function is not used, please short between cnt and -v input. ic relay r vcc cnt -v transistor figure 4. connection example cnt level for input -v output l(less than 1.2v) or short on hl(more than 2.4v) or open off discontinued
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