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date 06/02/2014
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SERIES: PRMC1-S DESCRIPTION: DC-DC CONVERTER
date
page 1 of 6
FEATURES
• 1 W isolated output
• smaller package
• single/dual regulated outputs
• 3,000 Vdc isolation
• continuous short circuit protection
• temperature range (-40~105°C)
• high efficiency at light load
• efficiency up to 81%
MODEL input
voltage
output
voltage
output
current
output
power
ripple
and noise1
efciency
typ
(Vdc)
range
(Vdc) (Vdc)
min
(mA)
max
(mA)
max
(W)
max
(mVp-p)
typ
(%)
PRMC1-D5-S5-S 5 4.5~9 5 10 200 1 100 72
PRMC1-D5-S12-S 5 4.5~9 12 4 83 1 100 76
PRMC1-D5-S15-S 5 4.5~9 15 3 67 1 100 75
PRMC1-D5-D5-S 5 4.5~9 ±5 ±5 ±100 1 100 73
PRMC1-D5-D12-S 5 4.5~9 ±12 ±2 ±42 1 100 76
PRMC1-D5-D15-S 5 4.5~9 ±15 ±2 ±33 1 100 75
PRMC1-D12-S3-S 12 9~18 3.3 15 303 1 100 75
PRMC1-D12-S5-S 12 9~18 5 10 200 1 100 77
PRMC1-D12-S9-S 12 9~18 9 6 111 1 100 79
PRMC1-D12-S12-S 12 9~18 12 4 83 1 100 80
PRMC1-D12-S15-S 12 9~18 15 3 67 1 100 80
PRMC1-D12-D5-S 12 9~18 ±5 ±5 ±100 1 100 78
PRMC1-D12-D12-S 12 9~18 ±12 ±2 ±42 1 100 81
PRMC1-D12-D15-S 12 9~18 ±15 ±2 ±33 1 100 80
PRMC1-D24-S3-S 24 18~36 3.3 15 303 1 100 75
PRMC1-D24-S5-S 24 18~36 5 10 200 1 100 77
PRMC1-D24-S12-S 24 18~36 12 4 83 1 100 81
PRMC1-D24-S15-S 24 18~36 15 3 67 1 100 79
PRMC1-D24-S24-S 24 18~36 24 2 42 1 100 77
PRMC1-D24-D5-S 24 18~36 ±5 ±5 ±100 1 100 80
PRMC1-D24-D12-S 24 18~36 ±12 ±2 ±42 1 100 80
PRMC1-D24-D15-S 24 18~36 ±15 ±2 ±33 1 100 80
PRMC1-D48-S3-S 48 36~75 3.3 15 303 1 100 75
PRMC1-D48-S5-S 48 36~75 5 10 200 1 100 76
PRMC1-D48-S12-S 48 36~75 12 4 83 1 100 81
PRMC1-D48-S15-S 48 36~75 15 3 67 1 100 80
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CUI Inc SERIES: PRMC1-S DESCRIPTION: DC-DC CONVERTER date 06/02/2014 page 2 of 6
INPUT
parameter conditions/description min typ max units
operating input voltage
5 Vdc input models
12 Vdc input models
24 Vdc input models
48 Vdc input models
4.5
9
18
36
5
12
24
48
9
18
36
75
Vdc
Vdc
Vdc
Vdc
start-up voltage
5 Vdc input models
12 Vdc input models
24 Vdc input models
48 Vdc input models
3.5
4.5
11
24
4
8
16
33
4.5
9
18
36
Vdc
Vdc
Vdc
Vdc
surge voltage
for maximum of 1 second
5 Vdc input models
12 Vdc input models
24 Vdc input models
48 Vdc input models
-0.7
-0.7
-0.7
-0.7
12
25
50
100
Vdc
Vdc
Vdc
Vdc
lter capacitance lter
CTRL2
models ON (CTRL open or insulated)
models OFF (connect voltage, current into CTRL is
5~10mA)
Notes: 2. See application notes on page 6.
OUTPUT
parameter conditions/description min typ max units
line regulation full load, input voltage from low to high ±0.2 ±0.5 %
load regulation 5% to 100% load ±0.4 ±0.75 %
voltage accuracy 5% to 100% load ±1 ±3 %
no-load voltage accuracy input voltage range ±1.5 ±5 %
voltage balance3dual output, balanced loads ±0.3 ±0.5 %
switching frequency 100% load, nominal input voltage, PFM mode 200 KHz
transient recovery time 25% load step change 0.5 2 ms
transient response deviation 25% load step change ±2.5 ±5 %
temperature coeffecient 100% load ±0.02 ±0.03 %/°C
Notes: 3. For dual output models, unbalanced loads should not exceed ±5%. If ±5% is exceeded, it may not meet all specications.
PROTECTIONS
parameter conditions/description min typ max units
short circuit protection continuous, automatic recovery
PART NUMBER KEY
PRMC1 - DXX - XXX -S
Input Voltage Output Voltage Packaging Style
Base Number
S = single
D = dual
SIP
Output
MODEL
(CONTINUED)
input
voltage
output
voltage
output
current
output
power
ripple
and noise1
efciency
typ
(Vdc)
range
(Vdc) (Vdc)
min
(mA)
max
(mA)
max
(W)
typ
(mVp-p)
typ
(%)
PRMC1-D48-D5-S 48 36~75 ±5 ±5 ±100 1 100 76
PRMC1-D48-D12-S 48 36~75 ±12 ±2 ±42 1 100 80
PRMC1-D48-D15-S 48 36~75 ±15 ±2 ±33 1 100 80
Notes: 1. ripple and noise are measured at 20 MHz BW by “parallel cable” method with 1 μF ceramic and 10 μF electrolytic capacitors on the output.
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CUI Inc SERIES: PRMC1-S DESCRIPTION: DC-DC CONVERTER date 06/02/2014 page 3 of 6
SAFETY AND COMPLIANCE
parameter conditions/description min typ max units
isolation voltage input to output for 1 minute at 1 mA max. 3,000 Vdc
isolation resistance input to output at 500 Vdc 1,000 MΩ
conducted emissions CISPR22/EN55022, class B (external circuit required, see Figure 1-b)
radiated emissions CISPR22/EN55022, class B (external circuit required, see Figure 1-b)
ESD IEC/EN61000-4-2, class B, contact ± 4kV
radiated immunity IEC/EN61000-4-3, class A, 10V/m
EFT/burst IEC/EN61000-4-4, class B, ± 2kV (external circuit required, see Figure 1-a)
surge IEC/EN61000-4-5, class B, ± 2kV (external circuit required, see Figure 1-a)
conducted immunity IEC/EN61000-4-6, class A, 3 Vr.m.s
voltage dips & interruptions IEC/EN61000-4-29, class B, 0%-70%
MTBF as per MIL-HDBK-217F @ 25°C 1,000,000 hours
RoHS 2011/65/EU
ENVIRONMENTAL
parameter conditions/description min typ max units
operating temperature see derating curve -40 105 °C
storage temperature -55 125 °C
storage humidity non-condensing 95 %
temperature rise at full load, Ta=25°C 25 °C
SOLDERABILITY
parameter conditions/description min typ max units
hand soldering 1.5 mm from case for 10 seconds 300 °C
wave soldering see wave soldering prole 260 °C
MECHANICAL
parameter conditions/description min typ max units
dimensions 22.00 x 9.50 x 12.00 (0.866 x 0.374 x 0.472 inch) mm
case material plastic (UL94-V0)
weight 4.9 g
MECHANICAL DRAWING
23 56781
23 56 781
Front View
Bottom View
Top View
PCB Layout
Grid Size:
2.54mm x 2.54mm
0.50[0.020]
2.54[0.100]
4.10 [0.161]
12.00
[0.472]
22.00 [0.866]
0.30 [0.012]
0.50[0.020]
17.78 [0.700]
2.50
[0.098]
9.50
[0.374]
Ø1.00 [0.039]
PIN CONNECTIONS
PIN Single Output Dual Output
1 GND GND
2 Vin Vin
3 CTRL CTRL
5 NC NC
6+Vo +Vo
7 0V 0V
8 CS -Vo
units: mm[inch]
tolerance: ±0.25[±0.010]
pin section tolerance: ±0.10[±0.004]
NC: No Connection
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CUI Inc SERIES: PRMC1-S DESCRIPTION: DC-DC CONVERTER date 06/02/2014 page 4 of 6
Recommended external circuit components
Vin (Vdc) 5 12 24 48
FUSE choose according to practical input current
MOV -- -- S14K35 S14K60
LDM1 -- -- 56μH 56μH
TVS SMCJ13A SMCJ28A SMCJ48A SMCJ90A
C0 680μF/16V 680μF/25V 330μF/50V 330μF/100V
C1 4.7μF/50V 4.7μF/50V 4.7μF/50V 4.7μF/100V
LDM2 12μH 12μH 12μH 12μH
C2 4.7μF/50V 4.7μF/50V 4.7μF/50V 4.7μF/100V
CY 1nF/3kV 1nF/3kV 1nF/3kV 1nF/3kV
D1 RB160M-60/1A RB160M-60/1A RB160M-60/1A RB160M-60/1A
R Follows:aaaaa aaaaaaaaaaaa
Cd 47nF/100V 47nF/100V 47nF/100V 47nF/100V
EMC RECOMMENDED CIRCUIT
DERATING CURVES
100
80
60
40
20
Ambient Temperature (°C)
Load (%)
-40-20 020406085 105 120
Safe operating area
LDM2
C0
TVS
LDM1
MOV
FUSE
C1
+
Vin
GND
+Vo
-Vo
(0V)
EUT
LOAD
C2
CY
Ctrl
Cd
D1 R
Ctrl
Vin
GND
(a) (b) (c)
10 Sec. Max.
Wave Soldering Time
4 Sec. Max.
Peak Temp. 260°C Max.
Time (sec.)
Temperature (°C)
250
200
150
100
50
0
Wave Soldering Prole Temperature Derating Curve
300
0.1
=
C
DC
I
VV
R
Figure 1
TEST CONFIGURATION
DC
Cin
Lin
DC
Load
Oscilloscope
Current
Probe
Lin(4.7µH) Cin(220µF, ESR<1.0at 100KHz)
Note: Input reected-ripple current is measured with an inductor Lin and Capacitor Cin to simulate source impedance.
External components
Lin 4.7μH
Cin 220μF, ESR < 1.0Ω
at 100 KHz
Table 1
Figure 2 Table 2
Note: Figure 1-c is on/off control circuit. See page 6 for details.
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CUI Inc SERIES: PRMC1-S DESCRIPTION: DC-DC CONVERTER date 06/02/2014 page 5 of 6
1. Output load requirement
To ensure this module can operate efciently and reliably, the minimum output load may not be less than 5% of the full load during
operation. If the actual output power is low, connect a resistor at the output end in parallel to increase the load.
2. Recommended circuit
This series has been tested according to the following recommended testing circuit before leaving the factory. This series should
be tested under load (see Figure 3 and Table 3). If you want to further decrease the input/output ripple, you can increase the
capacitance accordingly or choose capacitors with low ESR. However, the capacitance of the output lter capacitor must be
appropriate. If the capacitance is too high, a startup problem might arise. For every channel of the output, to ensure safe and reliable
operation, the maximum capacitance must be less than the maximum capacitive load (see Table 4).
3. CTRL Terminal
When open or applied high impedance, the converter will turn on. When it’s pulled high, the converter will shutdown. The input
current should between 5~10mA. Exceeding the maximum 20mA will cause permanent damage to the converter. The value for R can
be derived as follows:
4. Input Current
When it is used in an unregulated condition, make sure that the input uctuations and ripple voltage do not exceed the module
standard. Refer to Figure 5 and Table 5 for the startup current of this dc-dc module.
Single
Vout
(Vdc)
Max. Capacitive
Load
(μF)
Dual
Vout
(Vdc)
Max. Capacitive
Load1
(μF)
3.3 2700 -- --
5 2200 5 1000
9 1800 -- --
12 1000 12 470
15 680 15 330
24 470 -- --
Table 4
Note: 1. For each output.
APPLICATION NOTES
Figure 3
Figure 5
Table 3
Vin
(Vdc)
Cin1
(µF)
Cin2
(µF)
Lin
(µH)
Cs1
(µF)
Cout
(µF)
Lout2
(µH)
Cd
(nF/V)
5 100 47 4.7~12 10~22 100 2.2~10 47/100
12 100 47 4.7~12 10~22 100 2.2~10 47/100
24 10 1 4.7~12 10~22 100 2.2~10 47/100
48 10 1 4.7~12 10~22 100 2.2~10 47/100
Single output Dual output
9R
9
&RXW
&V
&LQ
9LQ
*1'
9F 5
/LQ
,F
'
&G
&LQ
9R
9
&RXW
&RXW
/RXW
/RXW 9R
&LQ
9LQ
*1'
/LQ
9F 5
,F
'
&G
&LQ
Note: 1. For single output only
2. For dual output only
300
0.1
=
C
DC
I
VV
R
Note: 1. Minimum load shouldn't be less than 5%, otherwise ripple may increase dramatically. Operation under minimum load will not damage the converter, however, they may
not meet all specications listed.
2. Maximum capacitive load is tested at input voltage range and full load.
3. All specications are measured at Ta=25°C, humidity<75%, nominal input voltage and rated output load unless otherwise specied.
Range
InputVoltage
Ip
Vin
(Vdc)
Ip
(mA)
5 450
12 220
24 110
48 55
Table 5
Vc: Control pin input voltage
VD: Forward voltage drop of diode D1
IC: Input current to control pin
R: Resistor of control circuit
Vin
GND
+Vo
-Vo
(0V)
EUT
LOAD
Ctrl
Cd
D1 R
Vc
Figure 4
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CUI Inc SERIES: PRMC1-S DESCRIPTION: DC-DC CONVERTER date 06/02/2014 page 6 of 6
CUI offers a two (2) year limited warranty. Complete warranty information is listed on our website.
CUI reserves the right to make changes to the product at any time without notice. Information provided by CUI is believed to be accurate and reliable. However, no responsibility is
assumed by CUI for its use, nor for any infringements of patents or other rights of third parties which may result from its use.
CUI products are not authorized or warranted for use as critical components in equipment that requires an extremely high level of reliability. A critical component is any component of a
life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.
Headquarters
20050 SW 112th Ave.
Tualatin, OR 97062
800.275.4899
Fax 503.612.2383
cui.com
techsupport@cui.com
rev. description date
1.0 initial release 03/20/2013
1.01 added models, updated spec 06/02/2014
The revision history provided is for informational purposes only and is believed to be accurate.
REVISION HISTORY
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Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
CUI Inc.:
PRMC1-D12-S5-S PRMC1-D5-S15-S PRMC1-D5-S5-S PRMC1-D24-S24-S PRMC1-D12-S3-S PRMC1-D5-S12-S
PRMC1-D12-S9-S PRMC1-D48-S3-S PRMC1-D12-S12-S PRMC1-D12-S15-S PRMC1-D24-S3-S PRMC1-D24-S5-
S PRMC1-D24-S15-S PRMC1-D24-S12-S