Datasheet

cui.com
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
CTRL
1
models ON (CTRL open or connect TTL high level, 3~12 Vdc)
modelsOFF(CTRLconnectGNDorlowlevel,0~1.2Vdc)
inputcurrent(modelsOFF) 6 mA
lter pilter
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coefcient 100% load ±0.02 %/°C
PROTECTIONS
parameter conditions/description min typ max units
over voltage protection
2
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.