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Technical content

rev. page date DESCRIPTION: dc-dc converter 1 of 4 PART NUMBER: PTK25

features

  • industry standard pin out
  • wide 2:1 input range
  • fully isolated
  • output voltage trimmable
  • output on/off control
  • over-current protection
  • over-voltage protection
  • six-sided EMI shielding
  • constant switching frequency
  • high efficiency
  • compact size 2.0”x2.0”x0.4”
  • -40°C~85°C models available
  • 3 year warranty NOTE: 1. All models are also available in an extended temperature range of -40°C~85°C. For these models, append “M” to the model number, e.g. PTK25-Q48-S5M. 2. Ripple & noise measured with a 20MHz bandwidth, off a 10uF electrolytic and a 0.1uF ceramic cap in parallel at the ouptut. MODEL 1 output input output output ripple & noise 2 efficiency power voltage voltage current mV P-P (typ.) (max) (max) PTK25-D24-S3 19.8W 18-36VDC 3.3VDC 6.0A 100 80% PTK25-D24-S5 25.0W 18-36VDC 5VDC 5.0A 100 85% PTK25-D24-S12 24.0W 18-36VDC 12VDC 2.0A 120 89% PTK25-D24-S15 24.0W 18-36VDC 15VDC 1.6A 150 89% PTK25-D24-D5 25.0W 18-36VDC ±5VDC 2.5A 75/75 84% PTK25-D24-D12 24.0W 18-36VDC ±12VDC 1.0A 120/120 88% PTK25-D24-D15 24.0W 18-36VDC ±15VDC 0.8A 150/150 87% PTK25-D24-T312 19.95W 18-36VDC 3.3VDC/±12VDC 3.5A/0.35A 75/120/120 83% PTK25-D24-T512 25.9W 18-36VDC 5VDC/±12VDC 3.5A/0.35A 75/120/120 84% PTK25-D24-T315 19.95W 18-36VDC 3.3VDC/±15VDC 3.5A/0.28A 75/150/150 83% PTK25-D24-T515 25.0W 18-36VDC 5VDC/±15VDC 3.5A/0.25A 75/150/150 84% PTK25-D48-S3 19.8W 36-72VDC 3.3VDC 6.0A 100 81% PTK25-D48-S5 25.0W 36-72VDC 5VDC 5.0A 100 85% PTK25-D48-S12 24.0W 36-72VDC 12VDC 2.0A 120 89% PTK25-D48-S15 24.0W 36-72VDC 15VDC 1.6A 150 89% PTK25-D48-D5 25.0W 36-72VDC ±5VDC 2.5A 75/75 84% PTK25-D48-D12 24.0W 36-72VDC ±12VDC 1.0A 120/120 88% PTK25-D48-D15 24.0W 36-72VDC ±15VDC 0.8A 150/150 87% PTK25-D48-T312 19.95W 36-72VDC 3.3VDC/±12VDC 3.5A/0.35A 75/120/120 83% PTK25-D48-T512 25.9W 36-72VDC 5VDC/±12VDC 3.5A/0.35A 75/120/120 84% PTK25-D48-T315 19.95W 36-72VDC 3.3VDC/±15VDC 3.5A/0.28A 75/150/150 83% PTK25-D48-T515 25.0W 36-72VDC 5VDC/±15VDC 3.5A/0.25A 75/150/150 84% Discontinued

rev. page date DESCRIPTION: dc-dc converter 2 of 4 PART NUMBER: PTK25 INPUT parameter conditions/description min nom max units input voltage range 18 24 36 VDC 36 48 72 VDC remote on/off control output turn-on 3 2.5V (open) 5.5V output turn-off 0V (short) 0.8V switching frequency constant 300 KHz NOTE: 3 output defaults to “on” when there is no connection to the “CNT” pin. OUTPUT parameter conditions/description min nom max units output trim range with external trim resistors -5% +5% set point accuracy single output -2% +2% dual output -3% +3% line regulation single output models -0.25% +0.25% (low line to high line) dual output models -2.5% +2.5% triple: main output (Vout) -0.25% +0.25% auxillary outputs (+Vaux / -Vaux) -5% +5% load regulation single output models- no load to full load -0.25% +0.25% dual output models- balanced loads -2.5% +2.5% triple: main output (Vout) -0.25% +0.25% auxillary outputs (+Vaux / -Vaux)- with 10% -5% +5% load on Vout and balanced loads on+Vaux and -Vaux minimum load converters will not be damaged if loading conditions are less than minimum specified loads, but regulation specs may not be met 4 ripple and noise see chart NOTE: 4 single output: no min. load required, dual: 10%, triple: balanced loads PROTECTION parameter conditions/description min nom max units over-current continuous auto recovery 5 105% 135% over-voltage internally zener clamped 5 110% 140% NOTE: 5 continuous operation in a protected state may compromise long-term reliability. GENERAL parameter conditions/description min nom max units efficiency typical at full load 77% 83% isolation voltage input/case, input/output, output/case 500 VAC insulation resistance at 500 VDC 100M Ohms agency standards approved to UL60950(E222889), CSA C22.2 No. 60950, TUV EN60950 (single output only) case material Zn material flammability 94 V-0 weight 80 grams (2.82) (ounces) MTBF MIL-HDBK-217F 470k hours operating temperature regular models - see derating curve. -20 +71 °C extended temperature models -40 +85 °C storage temperature -40 +105 °C humidity operating (non-condensing) 5% 95% RH washability not intended for aqueous wash Discontinued

rev. page date DESCRIPTION: dc-dc converter 3 of 4 PART NUMBER: PTK25 NOTES 1. All dimensions are in inches and(mm). 2. Weight : 75g or less * Mounting hole top view 0.3±0.5 (7.5) PCB Layout DIMENSIONS (mm) PIN DEFINITIONS DERATING CURVES Discontinued