date 08/15/2013 page 1 of 7 SERIES: PYB15 │ DESCRIPTION: DC-DC CONVERTER FEATURES • • • • • • • • • • up to 15 W isolated output industry standard pinout 4:1 input range (9~36 V, 18~75 V) smaller package single/dual regulated outputs 1,500 Vdc isolation continuous short circuit, over current protection, over voltage protection temperature range (-40~85°C) six-sided metal shielding efficiency up to 90% input voltage MODEL output voltage output current output power ripple and noise1 efficiency typ (Vdc) range (Vdc) (Vdc) min (mA) max (mA) max (W) max (mVp-p) typ (%) PYB15-Q24-S3 24 9~36 3.3 200 4000 13.2 100 87 PYB15-Q24-S5 24 9~36 5 150 3000 15 100 90 PYB15-Q24-S12 24 9~36 12 63 1250 15 100 89 PYB15-Q24-S15 24 9~36 15 50 1000 15 100 89 PYB15-Q24-S24 24 9~36 24 31 625 15 100 90 PYB15-Q24-D5 24 9~36 ±5 ±75 ±1500 15 100 86 PYB15-Q24-D12 24 9~36 ±12 ±32 ±625 15 100 88 PYB15-Q24-D15 24 9~36 ±15 ±25 ±500 15 100 88 PYB15-Q48-S3 48 18~75 3.3 200 4000 13.2 100 87 PYB15-Q48-S5 48 18~75 5 150 3000 15 100 89 PYB15-Q48-S12 48 18~75 12 63 1250 15 100 88 PYB15-Q48-S15 48 18~75 15 50 1000 15 100 90 PYB15-Q48-D5 48 18~75 ±5 ±75 ±1500 15 100 86 PYB15-Q48-D12 48 18~75 ±12 ±32 ±625 15 100 88 PYB15-Q48-D15 48 18~75 ±15 ±25 ±500 15 100 89 Notes: 1. Ripple and noise are measured at 20 MHz BW by “parallel cable” method PART NUMBER KEY PYB15 - QXX - XXX - X Base Number Input Voltage Output S = single D = dual cui.com Output Voltage Heatsink "blank" = no heatsink H = with heatsink CUI Inc │ SERIES: PYB15 │ DESCRIPTION: DC-DC CONVERTER date 08/15/2013 │ page 2 of 7 INPUT parameter conditions/description operating input voltage 24 V input models 48 V input models start-up voltage 24 V input models 48 V input models under voltage shutdown 24 V input models 48 V input models 7.5 16 surge voltage for maximum of 1 second 24 V input models 48 V input models -0.7 -0.7 start-up time nominal input, constant load filter min typ max units 9 18 24 48 36 75 Vdc Vdc 9 17.8 Vdc Vdc Vdc Vdc 50 100 Vdc Vdc 10 ms 1 mA pi filter models ON (CTRL open or connect TTL high level, 2.5-12 Vdc) CTRL1 models OFF (CTRL connect GND or low level, 0-1.2 Vdc) input current (models OFF) Note: 1. CTRL pin voltage is referenced to GND. OUTPUT parameter conditions/description min typ max line regulation load regulation cross regulation dual output models: main output 50% load, secondary output from 5% to 100% load full load, input voltage from low to high ±0.2 ±0.5 % 5% to 100% load ±0.5 ±1 % ±5 % ±1 ±3 % ±0.5 ±1 voltage accuracy voltage balance dual output, balanced loads adjustability2 ±10 switching frequency PWM mode 300 transient recovery time 25% load step change 300 transient response deviation 25% load step change ±3 temperature coefficient 100% load Note: units % % KHz 500 μs ±5 % ±0.02 %/°C max units 2. Output trimming available on single output models only. PROTECTIONS parameter conditions/description short circuit protection hiccup, continuous, automatic recovery min over current protection over voltage protection 3.3 Vdc output models 5 Vdc output models 12 Vdc output models 15 Vdc output models 24 Vdc output models typ 160 % 3.9 6.2 15 18 30 Vdc Vdc Vdc Vdc Vdc SAFETY AND COMPLIANCE parameter conditions/description min typ isolation voltage for 1 minute at 1 mA max. 1,500 Vdc isolation resistance at 500 Vdc 1,000 MΩ conducted emissions CISPR22/EN55022, class A, class B (external circuit required, see Figure 1-b) radiated emissions CISPR22/EN55022, class A, class B (external circuit required, see Figure 1-b) ESD IEC/EN61000-4-2, class B, contact ± 4kV radiated immunity IEC/EN61000-4-3, class A, 10V/m cui.com max units CUI Inc │ SERIES: PYB15 │ DESCRIPTION: DC-DC CONVERTER date 08/15/2013 │ page 3 of 7 SAFETY AND COMPLIANCE (CONTINUED) parameter conditions/description EFT/burst IEC/EN61000-4-4, class B, ± 2kV (external circuit required, see Figure 1-a) min surge IEC/EN61000-4-5, class B, ± 2kV (external circuit required, see Figure 1-a) conducted immunity IEC/EN61000-4-6, class A, 3 Vr.m.s voltage dips & interruptions IEC/EN61000-4-29, class B, 0%-70% MTBF as per MIL-HDBK-217F @ 25°C RoHS compliant yes typ max 1,000,000 units hours ENVIRONMENTAL parameter conditions/description operating temperature see derating curves min storage temperature storage humidity non-condensing case temperature at full load, Ta=71°C vibration 10~55 Hz for 30 min. along X, Y and Z axis typ max units -40 85 °C -55 125 °C 5 95 % 105 °C 10 G SOLDERABILITY parameter conditions/description max units hand soldering 1.5 mm from case for 10 seconds min typ 300 °C wave soldering see wave soldering profile 260 °C max units Peak.Temp 260ćMax Every Wave Soldering Time 4 sec.Max 250 Temperature (ć) 200 10 Sec Max 150 100 50 0 Time (sec.) MECHANICAL parameter conditions/description dimensions board mount: 50.8 x 25.4 x 11.8 board mount with heatsink: 50.8 x 25.4 x 16.3 case material aluminum alloy weight board mount board mount with heatsink min typ mm mm 28 36 cui.com g g CUI Inc │ SERIES: PYB15 │ DESCRIPTION: DC-DC CONVERTER date 08/15/2013 │ page 4 of 7 MECHANICAL DRAWING BOARD MOUNT units: mm[inch] tolerance: ±0.3[±0.012] pin diameter tolerance: ±0.10[±0.004] pin height tolerance: ±0.50[±0.020] Grid Size: 2.54mm x 2.54mm PIN CONNECTIONS PIN Single Output Dual Output 1 GND GND 2 Vin Vin 3 +Vo +Vo 4 Trim 0V 5 0V -Vo 6 CTRL CTRL Front View PCB Layout Top View Bottom View BOARD MOUNT WITH HEATSINK units: mm[inch] tolerance: ±0.3[±0.012] pin diameter tolerance: ±0.10[±0.004] pin height tolerance: ±0.50[±0.020] Grid Size: 2.54mm x 2.54mm PIN CONNECTIONS PIN Single Output Dual Output 1 GND GND 2 Vin Vin 3 +Vo +Vo 4 Trim 0V 5 0V -Vo 6 CTRL CTRL Front View PCB Layout Top View Top View cui.com CUI Inc │ SERIES: PYB15 │ DESCRIPTION: DC-DC CONVERTER date 08/15/2013 │ page 5 of 7 DERATING CURVES Single Output Voltage ≤ 5 V Single Output Voltage > 5 V With heatsink With heatsink 100 80 Without heatsink Load (%) Load (%) 100 60 Safe operating area 40 20 -40 80 Without heatsink 60 Safe operating area 40 20 -20 0 20 40 60 70 8085 -40 -20 Ambient Temperature (°C) 0 20 40 60 75 85 Ambient Temperature (°C) Dual Output Voltage ≤ 5 V Dual Output Voltage > 5 V With heatsink With heatsink 100 80 Without heatsink Load (%) Load (%) 100 60 Safe operating area 40 20 80 Without heatsink 60 Safe operating area 40 20 -40 -20 0 20 40 -40 65 75 85 Ambient Temperature (°C) -20 0 20 40 60 70 8085 Ambient Temperature (°C) EMC RECOMMENDED CIRCUIT Table 1 Figure 1 FUSE Recommended external circuit components LDM2 LDM1 Vin (Vdc) CY1 V in FUSE +Vo Vin TVS C0 EUT C1 GND GND (a) (b) CY2 LOAD -Vo (0V) TEST CONFIGURATION S14K35 56μH 56μH TVS SMCJ48A SMCJ90A C0 330μF/50V 330μF/100V C1 1μF/50V 1μF/100V LDM2 4.7μH 4.7μH CY1 1nF/2KV 1nF/2KV CY2 1nF/2KV 1nF/2KV Table 2 External components Lin Cin Note: S14K60 LDM1 Oscilloscope Figure 2 48 Choose according to input current MOV + MOV 24 Current Probe DC DC Load Input reflected-ripple current is measured with an inductor Lin and Capacitor Cin to simulate source impedance. cui.com Lin 4.7μH Cin 220μF, ESR < 1.0Ω at 100 KHz CUI Inc │ SERIES: PYB15 │ DESCRIPTION: DC-DC CONVERTER date 08/15/2013 │ page 6 of 7 APPLICATION NOTES 1. Recommended circuit This series has been tested according to the following recommended testing circuit before leaving the factory. This series should be tested under load (see Figure 2). If you want to further decrease the input/output ripple, you can increase the capacitance accordingly or choose capacitors with low ESR (see Table 3). However, the capacitance of the output filter capacitor must be appropriate. If the capacitance is too high, a startup problem might arise. For every channel of the output, to ensure safe and reliable operation, the maximum capacitance must be less than the maximum capacitive load (see Table 4). Figure 3 Single Output Vin Dual Output Vin +Vo Cin DC DC +Vo Cout Cin Cou t Cin (μF) -Vo 2. Table 4 Dual Vout (Vdc) Cin (μF) Cout (μF) Single Vout (Vdc) Max. Capacitive Load (μF) Dual Vout (Vdc) 1 100 470 -- -- -- 3.3 10200 -- -- 5 100 470 ±5 100 220 5 4020 5 4800 12 100 220 ±12 100 100 12 1035 12 800 15 100 220 ±15 100 100 15 705 15 500 100 100 -- -- -- 470 -- -- 1. For each output. 24 Note: 1. For each output. Output voltage trimming Leave open if not used. Figure 4 Application Circuit for Trim pin (part in broken line is the interior of models) R1 V re f RT R1 R3 Trim V re f R2 Formula for Trim Resistor + Vo +Vo up : R T= aR 2 R2-a -R3 a= Vref R1 Vo’ - Vref down : R T= aR 1 R1-a -R3 a= Vo’ - Vref R2 Vref R3 RT R2 0V 0V Tr im up Tr im down Trim Note: Table 5 Note: Max. Capacitive Load1 (μF) 3.3 24 Note: Cout (μF) 0V GND Table 3 Single Vout (Vdc) DC Cou t 0V GND DC Value for R1, R2, R3, and Vref refer to Table 5 RT: Trim Resistor a: User-defined parameter, no actual meanings Vo': The trim up/down voltage Vout (Vdc) R1 (KΩ) R2 (KΩ) R3 (KΩ) Vref (V) 3.3 4.801 2.863 15 1.24 5 2.883 2.864 10 2.5 12 10.971 2.864 17.8 2.5 15 14.497 2.864 17.8 2.5 24 24.872 2.863 20 2.5 1. Minimum load shouldn't be less than 5%, otherwise ripple may increase dramatically. Operation under minimum load will not damage the converter, however, they may not meet all specifications listed. 2. Maximum capacitive load is tested at input voltage range and full load. 3. All specifications are measured at Ta=25°C, humidity<75%, nominal input voltage and rated output load unless otherwise specified. cui.com CUI Inc │ SERIES: PYB15 │ DESCRIPTION: DC-DC CONVERTER date 08/15/2013 │ page 7 of 7 REVISION HISTORY rev. description date 1.0 initial release 06/26/2013 1.01 updated spec 08/15/2013 The revision history provided is for informational purposes only and is believed to be accurate. Headquarters 20050 SW 112th Ave. Tualatin, OR 97062 800.275.4899 Fax 503.612.2383 cui.com [email protected] CUI offers a two (2) year limited warranty. Complete warranty information is listed on our website. CUI reserves the right to make changes to the product at any time without notice. Information provided by CUI is believed to be accurate and reliable. However, no responsibility is assumed by CUI for its use, nor for any infringements of patents or other rights of third parties which may result from its use. CUI products are not authorized or warranted for use as critical components in equipment that requires an extremely high level of reliability. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.