Datasheet

cui.com
CUI Inc │ SERIES: PYB15-T & PYB15-U │ DESCRIPTION: DC-DC CONVERTER date 06/15/2015 │ page 2 of 8
INPUT
parameter conditions/description min typ max units
operating input voltage
24 Vdc input models
48 Vdc input models
9
18
24
48
36
75
Vdc
Vdc
start-up voltage
24 Vdc input models
48 Vdc input models
9
17.8
Vdc
Vdc
under voltage shutdown
1
24 Vdc input models
48 Vdc input models
7.5
16
Vdc
Vdc
surge voltage
for maximum of 1 second
24 Vdc input models
48 Vdc input models
-0.7
-0.7
50
100
Vdc
Vdc
start-up time nominal input, constant load 10 ms
lter pi lter
CTRL
2
models ON (CTRL open or connect TTL high level, 2.5~12 Vdc)
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 %
cross regulation
dual output models:
main output 50% load, secondary output from
10% to 100% load
±5 %
voltage accuracy ±1 ±3 %
voltage balance
3
dual output, balanced loads ±0.5 ±1 %
adjustability
4
±10 %
switching frequency PWM mode 300 kHz
transient recovery time 25% load step change 300 500 μs
transient response deviation 25% load step change ±3 ±5 %
temperature coefcient 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 specications.
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 %
over voltage protection
3.3 Vdc output models
5 Vdc output models
12 Vdc output models
15 Vdc output models
24 Vdc output models
3.9
6.2
15
18
30
Vdc
Vdc
Vdc
Vdc
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 MΩ
For more information, please visit the product page.