Additional Resources: Product Page | 3D Model
datdatee 06/21/2019
pagepage 1 of 81 of 8
SERIES: PYB15-T & PYB15-U DESCRIPTION: DC-DC CONVERTER
FEATURES
up to 15 W isolated output
industry standard pinout
4:1 input range (9~36 Vdc, 18~75 Vdc)
smaller package
single/dual regulated outputs
1,500 Vdc isolation
continuous short circuit, over current protection, over voltage protection
reverse polarity protection on chassis mount (-T) models
temperature range (-40~85C)
six-sided metal shielding
efficiency up to 90%
2
input output output output ripple efficiency
MODEL
1
voltage voltage current power and noise
typ range min max max max typ
(Vdc) (Vdc) (Vdc) (mA) (mA) (W) (mVp-p) (%)
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 with 1 F ceramic and 10 F electrolytic capacitors on the output.
2. Efficiency is approximately 2% lower for chassis mount (-T) models.
PART NUMBER KEY
PYB15 - QXX - XXX - X - X
Mounting Type
Base Number
T = Chassis mount
U = U-frame
Input Voltage
*
Heatsink
Outputblan = no heatsink
S = single Output Voltage
H = with heatsink
D = dual
Notes: *Discontinued heatsink versions.
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CUI Inc SERIES: PYB15-T & PYB15-U DESCRIPTION: DC-DC CONVERTER date 06/21/2019 page 2 of 8
INPUT
parameter conditions/description min typ max units
24 Vdc input models 9 24 36 Vdc
operating input voltage
48 Vdc input models 18 48 75 Vdc
24 Vdc input models 9 Vdc
start-up voltage
48 Vdc input models 17.8 Vdc
24 Vdc input models 7.5 Vdc
1
under voltage shutdown
48 Vdc input models 16 Vdc
for maximum of 1 second
surge voltage 24 Vdc input models -0.7 50 Vdc
48 Vdc input models -0.7 100 Vdc
start-up time nominal input, constant load 10 ms
filter pi filter
models ON (CTRL open or connect TTL high level, 2.5~12 Vdc)
2
CTRL models OFF (CTRL connect GND or low level, 0~1.2 Vdc)
input current (models OFF) 1 mA
Notes: 1. Contact CUI if you are planning to use this feature in your application.
2. CTRL pin voltage is referenced to GND.
OUTPUT
parameter conditions/description min typ max units
line regulation full load, input voltage from low to high 0.2 0.5 %
load regulation 5% to 100% load 0.5 1 %
dual output models:
cross regulation main output 50% load, secondary output from 5 %
10% to 100% load
voltage accuracy 1 3 %
3
voltage balance dual output, balanced loads 0.5 1 %
4
adjustability 10 %
switching frequency PWM mode 300 kHz
transient recovery time 25% load step change 300 500 s
transient response deviation 25% load step change 3 5 %
temperature coefficient 100% load 0.02 %/C
Note: 3. For dual output models, unbalanced loads should not exceed 5%. If 5% is exceeded, it may not meet all specifications.
4. Output trimming available on single output models only.
PROTECTIONS
parameter conditions/description min typ max units
short circuit protection hiccup, continuous, automatic recovery
over current protection 160 %
3.3 Vdc output models 3.9 Vdc
5 Vdc output models 6.2 Vdc
over voltage protection 12 Vdc output models 15 Vdc
15 Vdc output models 18 Vdc
24 Vdc output models 30 Vdc
SAFETY AND COMPLIANCE
parameter conditions/description min typ max units
isolation voltage input to output for 1 minute at 1 mA max. 1,500 Vdc
isolation resistance input to output at 500 Vdc 1,000 M
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