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date 03/28/2016
page 1 of 14
SERIES: PRD15 DESCRIPTION: DC-DC CONVERTER
FEATURES
up to 15 W isolated output
industry standard 1 x 1 package
4:1 input range
low ripple & noise
over voltage, over current, short circuit, and over
temperature protections
remote on/off control
output trim
-40 to 85 C temperature range
efficiency up to 89%
UL/cUL safety approval
input output output output ripple efficiency
MODEL
1
voltage voltage current power & noise
typ range min max max max typ
(Vdc) (Vdc) (Vdc) (A) (A) (W) (mVp-p) (%)
PRD15-Q24-S3 24 9~36 3.3 0.45 4.5 14.85 90 89
PRD15-Q24-S5 24 9~36 5 0.3 3 15 125 87.3
PRD15-Q24-S12 24 9~36 12 0.13 1.3 15.6 150 84.5
PRD15-Q24-S15 24 9~36 15 0.11 1.1 16.5 175 85
PRD15-Q48-S3 48 18~75 3.3 0.5 5 16.5 90 88
PRD15-Q48-S5 48 18~75 5 0.3 3 15 95 86
PRD15-Q48-S12 48 18~75 12 0.13 1.3 15.6 120 85
PRD15-Q48-S15 48 18~75 15 0.11 1.1 16.5 120 85.3
Notes: 1. At full load, nominal input, 20 MHz bandwidth oscilloscope, input terminated with a 100 F capacitor for 24 Vdc input models and a 4.7 F capacitor for 48 Vdc input
models. Output terminated with 1 F and 10 F low ESR capacitors.
2. All specifications are measured at Ta=25C, nominal input voltage, and rated output load unless otherwise specified. All models are tested and specified with a 100 F
capacitor for 24 Vdc input models and a 4.7 F capacitor for 48 Vdc input models on the input, and with 1 F and 10 F low ESR capacitors on the output.
PART NUMBER KEY
PRD15 - QXX - SXX - X - X - X
Base Number
Package Options:
Input Voltage
blank = standard
Output Voltage Packaging Style:
(through hole
D = DIP
models only)
M = SMT
TR = Tape & Reel
(SMT models only)
Remote On/Off Control:
P = positive logic
N = negative logic
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CUI Inc SERIES: PRD15 DESCRIPTION: DC-DC CONVERTER date 03/28/2016 page 2 of 14
INPUT
parameter conditions/description min typ max units
24 Vdc input models 9 24 36 Vdc
operating input voltage
48 Vdc input models 18 48 75 Vdc
24 Vdc input models 2.1 A
current
48 Vdc input models 1.1 A
24 Vdc input models 8.8 Vdc
start-up voltage
48 Vdc input models 16.7 Vdc
PRD15-Q24-S3 8.6 Vdc
PRD15-Q24-S5 8.5 Vdc
under voltage shutdown PRD15-Q24-S12, PRD15-Q24-S15 8.4 Vdc
PRD15-Q48-S15 16.2 Vdc
all other models 15.6 Vdc
models ON (10~15 Vdc or open circuit)
positive logic
models OFF (-0.7~0.7 Vdc)
1
remote on/off
models ON (-0.7~0.8 Vdc)
negative logic
models OFF (10~15 Vdc or open circuit)
PRD15-Q48-S5: inductance filter
filter
all other models: capacitance filter
input reverse polarity protection no
recommended to add fuse:
4 A fast blow fuse for 24 Vdc input models
input fuse
2 A fast blow fuse for 48 Vdc input models
1.5 A fast blow fuse for PRD15-Q48-S12 model
Notes: 1. On/Off current is 1 mA.
OUTPUT
parameter conditions/description min typ max units
low ESR <0.02
maximum capacitive load PRD15-Q24-S3, S5, S12 & PRD15-Q48-S3 1,000 F
all other models 470 F
PRD15-Q48-S3 0.2 %
line regulation PRD15-Q48-S12 0.075 %
all other models 0.05 %
PRD15-Q24-S3 0.1 %
PRD15-Q24-S5 0.075 %
load regulation PRD15-Q48-S3 0.2 %
PRD15-Q48-S5 0.06 %
all other models 0.05 %
voltage accuracy at 50% load 1 %
start-up time 50 ms
2
adjustability see application notes 10 %
PRD15-Q24-S12, PRD15-Q24-S15 340 kHz
PRD15-Q48-S5 375 kHz
switching frequency
PRD15-Q48-S15 380 kHz
all other models 350 kHz
50-75-50% load change to 1% Vout
dynamic load response PRD15-Q24-S3, PRD15-Q24-S12 150 s
all other models 100 s
temperature coefficient 0.02 %/C
Note: 2. For input voltage < 20 Vdc, PRD15-Q48-S5 can only be trimmed down.
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