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CUI Inc

│ SERIES: PQA50-D │ DESCRIPTION: DC-DC CONVERTER

date 07/14/2015

│ 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

input under voltage protection

24 Vdc input models

48 Vdc input models

18

36

Vdc

Vdc

input over voltage protection

24 Vdc input models

48 Vdc input models

36

75

Vdc

Vdc

under/over voltage shutdown

input under voltage protection

24 Vdc input models

48 Vdc input models

16

32

Vdc

Vdc

input over voltage protection

24 Vdc input models

48 Vdc input models

40

81

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, 3~12 Vdc)

modelsOFF(CTRLconnectGNDorlowlevel,0~1.2Vdc)

inputcurrent(modelsOFF)

6

mA

filter

pifilter

Note1.CTRLpinvoltageisreferencedtoGND.

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

%

temperaturecoefficient

100% load

±0.02

%/°C

PROTECTIONS

parameter

conditions/description

min

typ

max

units

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

over current protection

135

%

short circuit protection

continuous, automatic recovery, hiccup

over temperature protection

110

°C

Note

2. Module needs to be re-started after over voltage protection.

For more information, please visit the product page.