CME Series

Isolated 0.75W Single Output Isolated DC-DC Converters

KDC_CME.C01 Page 1 of 13

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SELECTION GUIDE

V

V

mA

mA

%

mV p-p

%

pF

MIL.

Tel.

Typ.

Max.

Typ.

Max.

Min.

Typ.

kHrs

CME0505DC

5

5

150

218

10

12

15

25

67

70

30

3400

CME0505SC

5

5

150

218

10

12

15

25

67

70

30

3400

CME0512SC

5

12

63

195

5

7

20

30

72

77

33

2200

3KVDC isolation options

CME0303S3C

3.3

3.3

227

300

9

12

15

25

66

73

30

1230

CME0305S3C

3.3

5

150

300

9

12

15

25

68

73

35

630

CME0505S3C

5

5

150

218

9

12

15

25

65

70

28

2400

CME0512S3C

5

12

63

200

5

7

10

15

70

75

30

630

Short Circuit Protection Options

CME0505SPC

5

5

150

195

7.5

9

11

25

74

76.5

22

2887

47047

CME0505DPC

5

5

150

195

7.5

9

11

25

74

76.5

22

2887

47047

INPUT CHARACTERISTICS

Parameter

Conditions

Min.

Typ.

Max.

Units

Voltage range

Continuous operation, 3.3V input types

2.97

3.3

3.63

V

Continuous operation, 5V input types

4.5

5.0

5.5

Input short circuit current

Short circuit variants

95

mA

Input reflected ripple

current

3.3V input types

1.5

2

mA p-p

5V input types

2

2.5

Short circuit types

3

15

OUTPUT CHARACTERISTICS

Parameter

Conditions

Min.

Typ.

Max.

Units

Rated Power2

TA=-40°C to 85°C, see derating graphs

0.75

W

Voltage Set Point Accuracy

See tolerance envelope

Line regulation

High VIN to low VIN ; Short circuit types

1.15

1.2

%/%

High VIN to low VIN ; All other output types

1.0

1.2

ISOLATION CHARACTERISTICS

Parameter

Conditions

Min.

Typ.

Max.

Units

Isolation test voltage

C Versions Flash tested for 1 second

1000

VDC

3C Versions Flash tested for 1 second

3000

Resistance

Viso= 1000VDC

10

GΩ

GENERAL CHARACTERISTICS

Parameter

Conditions

Min.

Typ.

Max.

Units

Switching frequency

CME0505XC

120

kHz

Short circuit types

91

All other types

135

ABSOLUTE MAXIMUM RATINGS

Lead temperature 1.5mm from case for 10 seconds

260°C

Wave Solder

Wave Solder profile not to exceed the profile recom-

mended in IEC 61760-1 Section 6.1.3. Please refer to

application notes for further information.

Input voltage VIN, 3.3V input

5.5V

Input voltage VIN, 5V input

7V

1. Calculated using MIL-HDBK-217 FN2 and Telcordia SR-332 calculation model with nominal input voltage at full load.

2. See derating curve.

All specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise specified.

PRODUCT OVERVIEW

The CME series are a cost effective 0.75W DC-DC

converter series, in industry standard packages

with industry standard pinout, Popular input and

output voltages are available as a lower power

alternative to a 1W DC-DC converter. The galvanic

isolation allows the device to be configured to

provide an isolated negative rail in systems where

only positive rails exist. The wide temperature

range guarantees startup from –40°C and full 0.75

watt output at 85°C. For the short circuit protected

parts (PC) protection is continuous and

auto-resetting on removal of the short circuit.

FEATURES

Short circuit protection options

UL 60950 recognised

Single isolated output

1kVDC or 3kVDC option ‘Hi Pot Test’

Wide temperature performance at full

0.75W load -40°C to 85°C

Industry standard pinout

3.3V & 5V inputs

3.3V, 5V & 12V outputs

Pin Compatible with LME, MEE1, MEE3,

NKE, NME & NML series