cui.com

CUI Inc

│ SERIES: PQA30-D │ DESCRIPTION: DC-DC CONVERTER

date 07/08/2014

│ page 2 of 7

INPUT

parameter

conditions/description

min

typ

max

units

operating input voltage

24 Vdc input models

48 Vdc input models

18

36

24

48

36

75

Vdc

Vdc

start-up voltage

24 Vdc input models

48 Vdc input models

17.8

35.8

18

36

Vdc

Vdc

under voltage shutdown

24 Vdc input models

48 Vdc input models

16

32

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

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

filter

pi filter

Note

1. 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

10% to 100% load

±0.5

±1

%

voltage accuracy

±1

±3

%

adjustability

±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 coefficient

100% load

±0.02

%/°C

PROTECTIONS

parameter

conditions/description

min

typ

max

units

short circuit protection

hiccup, automatic recovery

over current protection

120

130

150

%

over voltage protection

3.3 Vdc output models

5 Vdc output models

9 Vdc output models

12 Vdc output models

15 Vdc output models

24 Vdc output models

3.96

6

10.8

15

18

28

Vdc

Vdc

Vdc

Vdc

Vdc

Vdc

For more information, please visit the product page.