PYB20-T Datasheet, PDF (2/8 Pages) CUI INC – DC-DC CONVERTER

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CUI Inc │ SERIES: PYB20-T & PYB20-U │ DESCRIPTION: DC-DC CONVERTER
date 06/16/2015 │ page 2 of 8
INPUT
parameter
conditions/description
min
typ
operating input voltage
24 Vdc input models
48 Vdc input models
9
24
18
48
start-up voltage
24 Vdc input models
48 Vdc input models
under voltage shutdown¹
24 Vdc input models
48 Vdc input models
7.5
16
surge voltage
for maximum of 1 second
24 Vdc input models
48 Vdc input models
-0.7
-0.7
start-up time
nominal input, constant load
10
filter
pi filter
models ON (CTRL open or connect TTL high level, 2.5~12 Vdc)
CTRL²
models OFF (CTRL connect GND or low level, 0~1.2 Vdc)
input current (models OFF)
1
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
line regulation
full load, input voltage from low to high
±0.2
load regulation
5% to 100% load
±0.5
cross regulation
dual output models:
main output 50% load, secondary output from
10% to 100% load
voltage accuracy
±1
voltage balance³
dual output, balanced loads
±0.5
adjustability⁴
±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:
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
short circuit protection
over current protection
over voltage protection
conditions/description
hiccup, continuous, automatic recovery
3.3 Vdc output models
5 Vdc output models
12 Vdc output models
15 Vdc output models
24 Vdc output models
min
typ
160
3.9
6.2
15
18
30
SAFETY AND COMPLIANCE
parameter
conditions/description
isolation voltage
for 1 minute at 1 mA max.
isolation resistance
at 500 Vdc
min
typ
1,500
1,000
max
36
75
9
17.8
50
100
units
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
ms
mA
max
±0.5
±1
±5
±3
±1
500
±5
±0.02
units
%
%
%
%
%
%
kHz
μs
%
%/°C
max
units
%
Vdc
Vdc
Vdc
Vdc
Vdc
max
units
Vdc
MΩ
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