For more information, please visit the product page. rev. 1 of 5 date 11/2009 DESCRIPTION: dc-dc converter PART NUMBER: PK25 input voltage PK25-D5-S3.3 PK25-D5-S5 PK25-D5-S12 PK25-D5-S15 PK25-D5-D5 PK25-D5-D12 PK25-D5-D15 PK25-D12-S3.3 PK25-D12-S5 PK25-D12-S12 PK25-D12-S15 PK25-D12-D5 PK25-D12-D12 PK25-D12-D15 PK25-D24-S3.3 PK25-D24-S5 PK25-D24-S12 PK25-D24-S15 PK25-D24-D5 PK25-D24-D12 PK25-D24-D15 PK25-D48-S3.3 PK25-D48-S5 PK25-D48-S12 PK25-D48-S15 PK25-D48-D5 PK25-D48-D12 PK25-D48-D15 10.6W 16.0W 20.4W 21.0W 16.0W 20.4W 21.0W 13.2W 20.0W 25.2W 25.5W 20.0W 25.2W 25.5W 13.2W 20.0W 25.2W 25.5W 20.0W 25.2W 25.5W 13.2W 20.0W 25.2W 25.5W 20.0W 25.2W 25.5W 4.5-9VDC 4.5-9VDC 4.5-9VDC 4.5-9VDC 4.5-9VDC 4.5-9VDC 4.5-9VDC 8-16.5VD 9-18VDC 9-18VDC 9-18VDC 9-18VDC 9-18VDC 9-18VDC 18-36VDC 18-36VDC 18-36VDC 18-36VDC 18-36VDC 18-36VDC 18-36VDC 32-72VDC 32-72VDC 32-72VDC 32-72VDC 32-72VDC 32-72VDC 32-72VDC output voltage output current (min) output current (max) 0A 0A 0A 0A 0A 0A 0A 0A 0A 0A 0A 0A 0A 0A 0A 0A 0A 0A 0A 0A 0A 0A 0A 0A 0A 0A 0A 0A 3.2A 3.2A 1.7A 1.4A 1.6A 0.85A 0.7A 4.0A 4.0A 2.1A 1.7A 2.0A 1.05A 0.85A 4.0A 4.0A 2.1A 1.7A 2.0A 1.05A 0.85A 4.0A 4.0A 2.1A 1.7A 2.0A 1.05A 0.85A in output power (max) 3.3VDC 5VDC 12VDC 15VDC ±5VDC ±12VDC ±15VDC 3.3VDC 5VDC 12VDC 15VDC ±5VDC ±12VDC ±15VDC 3.3VDC 5VDC 12VDC 15VDC ±5VDC ±12VDC ±15VDC 3.3VDC 5VDC 12VDC 15VDC ±5VDC ±12VDC ±15VDC is co nt MODEL 1 ue d 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 2.56”x2.0”x0.375” ·3 year warranty D page ripple & noise 2 mV P-P 75 75 120 150 100/100 120/120 150/150 75 75 120 150 100/100 120/120 150/150 75 75 120 150 100/100 120/120 150/150 75 75 120 150 100/100 120/120 150/150 efficiency (typ.) 73% 75% 77% 77% 75% 77% 77% 83% 85% 89% 89% 80% 86% 86% 83% 85% 89% 90% 82% 86% 86% 83% 85% 90% 90% 82% 86% 86% NOTE: 1. All models (excluding the 5 V dc input, D5) are also available in an extended temperature range of -40°C~85°C. 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. 20050 SW 112th Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2383 www.v-infinity.com For more information, please visit the product page. rev. page 2 of 5 date 11/2009 DESCRIPTION: dc-dc converter PART NUMBER: PK25 INPUT switching frequency constant min 4.5 9 18 36 OUTPUT parameter set point accuracy line regulation load regulation conditions/description all models single output models dual output models (10% min. load) minimum load ripple and noise 20 MHz bandwidth min -2% -0.5% -1.0% -2.5% 0.0 nt conditions/description typical at full load input/case, input/output, output/case at 500 VDC approved to UL1950, EN60950, CISPR22, CE MTBF operating temperature MIL-HDBK-217F regular models extended temperature models co parameter efficiency dielectric withstand insulation resistance agency standards case material material flammability weight units VDC VDC VDC VDC KHz max +2% +0.5% +1.0% +2.5% units operating (non-condensing) not intended for aqueous wash min 80% 500 100M -20 -40 -40 20% nom nom max 135% 140% max 89% Amps mVpp units units VAC Ohms STS 94 V-0 65 (2.29) 470k grams (ounces) hours +71 °C +85 °C +105 °C 90% RH D is storage temperature humidity washability max 9 18 36 72 1.0% Vout parameter conditions/description min over-current continuous auto recovery 3 105% over-voltage internally zener clamped 3 110% NOTE: 3 continuous operation in a protected state may compromise long-term reliability. GENERAL nom in PROTECTION nom 5 12 24 48 300 d conditions/description ue parameter input voltage range 20050 SW 112th Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2383 www.v-infinity.com For more information, please visit the product page. rev. page 3 of 5 date 11/2009 DESCRIPTION: dc-dc converter PART NUMBER: PK25 DIMENSIONS (mm) Single Output 4. 5. 6. 7. 2.56 (65.0) CL 0.2 (5.08) OUT 0.6 (15.24) 0.2 (5.08) 2.0 (50.0) 4 5 2 6 3 7 0.19 (4.68) Label 0.2 (5.08) Outside edge 0.3 (7.62) 0.19 (4.68) 0.2 (5.08) 7- 0.05(1.3) 1 CL 0.6 (15.24) nt 1.6 (41.0) 2.2 (55.88) +Vout C om -Vout Trim 4 5 2 6 3 7 0.3 (7.62) 0.3 (7.62) 0.2 (5.08) 0.2 (5.08) 2.2 (55.88) TOP VIEW D is co 0.18 (4.56) 4. 5. 6. 7. +Vout N o p in Gnd Trim CL 0.3 (7.62) 0.37 (9.5) 0.04 (1.0) 1. +Vin 2. -Vin 3. CNT in IN Dual Output ue 1. +Vin 2. -Vin 3. CNT 1 d Pin Assignments All dimensions are in inches (mm). 20050 SW 112th Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2383 www.v-infinity.com For more information, please visit the product page. rev. page 4 of 5 date 11/2009 DESCRIPTION: dc-dc converter 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 d optionally be trimmed to a different value (+/- 10%) with external resistors and/or potentiometer as shown below. +Vo FIGURE 1. TRIMMING WITH Trim EXTERNAL POTENTIOMETER -Vin -Vo 10KW Trimpot ue +Vin R load To trim the output voltage with fixed resistors, the output voltage can be calculated as follows. +Vo +Vin Trim R load -Vo nt R trim-up -Vin in +Vin -Vin +Vo R trim-down Trim R load -Vo Trim-Up Trim-Down FIGURE 2: TRIM-UP VOLTAGE SETUP FIGURE 3: TRIM-DOWN VOLTAGE SETUP co Rtrim_up = Vr · R1 · R2 R2 · (Vo - Vr) - Vr · R1 Rtrim_down = (Vo - Vr) · R1 · R2 Vr · R1 - (Vo - Vr) · R2 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 Ω . V o is the Where: R trim-down is the external resistor in K Ω . 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 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: is the unit and are defined in Table 1. For example to trim up D Vo = 25.2 / R1 = 21 KΩ / R2 = 2.43 KΩ / Vr = 2.5 Rtrim_up = 2.5 · 21 · 2.43 2.43 · (25.2 - 2.5) - 2.5 · 21 Table 1 = 47.94 KΩ Model PK25-DXX-S3.3 PK25-DXX-S5 PK25-DXX-S12 PK25-DXX-S15 PK25-DXX-D5 PK25-DXX-D12 PK25-DXX-D15 *PK25-D5-S3.3 Vo = 22.8 / R1 = 21 KΩ / R2 = 2.43 KΩ / Vr = 2.5 Rtrim_down = (22.8 - 2.5) · 21 · 2.43 2.5 - 2.1 (22.8 - 2.5) · 2.43 = 326.68 KΩ R1 (KΩ) R2 (KΩ) Vr (V) 4.12 2.49 1.25 2.43 2.43 2.5 9.31 2.43 2.5 12.7 2.49 2.5 7.5 2.49 2.5 21 2.43 2.5 26.7 2.43 2.5 0.787 2.43 2.5 20050 SW 112th Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2383 www.v-infinity.com For more information, please visit the product page. rev. page 5 of 5 date 11/2009 DESCRIPTION: dc-dc converter 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 VCC R -V ue CNT FIGURE 4. CONNECTION EXAMPLE d 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). IC Transistor Relay 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. OUTPUT in CNT level for INPUT -V ON HL(More than 2.4V) OR Open OFF D is co nt L(Less than 1.2V) OR Short 20050 SW 112th Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2383 www.v-infinity.com