CMR Series
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Isolated 0.75W Single and Dual Output Isolated DC/DC Converters
SELECTION GUIDE
Order Code
% mV p-p % MIL. Tel.
VV mA mA pF
Typ. Max Typ. Max. Min. Typ. kHrs
CMR100C 5 5 150 9 11 6 10 218 65 69 30 1850
CMR118C 24 5 150 6.8 10 8 15 46 65 70 60 1250
3kVDC Isolation Options
CMR0505SA3C 5 5 150 9 11 15 25 220 64 68 30 4240
FEATURES
CMR0512S3C 5 12 31 5 6 6.7 8 192 74 78 30 1560
Short circuit protection options
CMR0515S3C 5 15 25 4 6 6.3 8.2 188 76 79 30 1060
UL 60950 recognised
CMR1215S3C 12 15 25 3 4.5 6.5 13 80 76 79 40 925
Short Circuit Protection Options
Single or Dual Isolated Outputs
CMR100PC 5 5 150 7.5 9 10 25 200 73 75.5 22 3095 61060
1kVDC or 3kVDC options Hi Pot Test 4
CMR0505SAP3C 5 5 150 7.5 9 20 40 195 74 76 20 2680 56444
Wide temperature performance at full
INPUT CHARACTERISTICS
0.75W load -40C to 85C
Parameter Conditions Min. Typ. Max. Units
Industry Standard Pinouts
Continuous operation, 5V input types 4.5 5 5.5
Voltage range Continuous operation, 12V input types 10.8 12 13.2 V
5V, 12V and 24V Inputs
Continuous operation, 24V input types 21.6 24 26.4
5V, 12V and 15V Outputs
Input short circuit current Short circuit variants 95 mA
Pin compatible with NMR, MER1, MMV,
CMR100PC 2 15
MEV1, NMK, MEV3, NMV series. Input reected ripple CMR0505SAP3C 5 15 mA
current p-p
5V & 12V input types 2.6 4
24V input types 10 15
DESCRIPTION
The CMR series are a cost effective 0.75W DC/DC
OUTPUT CHARACTERISTICS
converter series, in an industry standard package
Parameter Conditions Min. Typ. Max. Units
with industry standard pinouts, Popular input and
2
Rated Power TA=-40C to 85C 0.75 W
output voltages are available as a lower power
Voltage Set Point Accuracy See tolerance envelope
alternative to a 1W DC/DC converter. The galvanic
High VIN to low VIN ; Short circuit types 1.15 1.2
isolation allows the device to be congured to
Line regulation %/%
High VIN to low VIN ; All other output types 1.0 1.2
provide an isolated negative rail in systems where
only positive rails exist. The wide temperature
range guarantees startup from 40C and full
ISOLATION CHARACTERISTICS
0.75 watt output at 85C. For the short circuit
Parameter Conditions Min. Typ. Max. Units
protected parts (PC) protection is continuous and
C versions ash tested for 1 second 1000
Isolation voltage VDC
auto-resetting on removal of the short circuit.
3C versions ash tested for 1 minute 3000
Resistance Viso=1000VDC 10 G
ABSOLUTE MAXIMUM RATINGS
Lead temperature 1.5mm from case for 10 seconds 260C
5V input types 7V
12V input types 15V
24V input types 28V
1. Calculated using MIL-HDBK-217 FN2 and Telcordia SR-332 calculation model with nominal input voltage at full load.
2. See derating graph.
3. See ripple & noise characterisation method.
4. 3kVDC Isolation
All specications typical at TA=25C, nominal input voltage and rated output current unless otherwise specied.
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KDC_CMR.B01 Page 1 of 11
Nominal Input
Voltage
Output
Voltage
Output
Current
Load
Regulation
Ripple &
3
Noise
Input Current
at rated load
Efciency
Isolation
Capacitance
1
MTTFCMR Series
Isolated 0.75W Single and Dual Output Isolated DC/DC Converters
GENERAL CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
5V input types 110
12V input types 120
Switching frequency kHz
24V input types 80
CMR100PC 97
CMR0505SAP3C 88
TEMPERATURE CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
Specication All output types -40 85
Storage -50 125
5V output types 33
C
All other output types 28
Case Temperature above ambient
1kVDC short circuit types 18
3kVDC short circuit types 19
Cooling Free air convection
TOLERANCE ENVELOPES
All 5V output types:
All other output types:
+8%
+10%
+4% +3%
+2%
+2%
V V
NOM NOM
-4%
-3%
100
10 25 50 75
75 100
10 25 50
Output Load Current (%)
Output Load Current (%)
Short circuit types:
+10%
+5%
+2%
V
NOM
-3%
25 50 75 100
10
Output Load Current (%)
The voltage tolerance envelope shows typical load regulation characteristics for this product series. The tolerance envelope is the maximum output voltage variation due to
changes in output loading.
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KDC_CMR.B01 Page 2 of 11
Output Voltage
Output Voltage
Output Voltage