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NCS6 Series

Isolated 6W 4:1 Input Single Output DC/DC Converters

2009-09-21

KDC_NCS6C.B01 Page 1 of 6

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SELECTION GUIDE

Order Code

Input

Voltage

Output

Voltage

Output

Current

Input Current

Current

Ripple &

Noise

(Typ.)

Efficiency

Nom.

100%

Load

0%

Load

100%

Load

Min.

Typ.

V

V

A

mA

mA

mV p-p

%

%

Hrs

NCS6S1203C

12

3.3

1.52

10

550

30

75

78

662,073

NCS6S1205C

12

5

1.2

7

610

30

79

82

521,975

NCS6S1212C

12

12

0.5

10

580

30

84

86

435,567

NCS6S1215C

12

15

0.4

12

580

30

85

87

437,582

NCS6S4803C

48

3.3

1.52

10

150

40

73

76

483,460

NCS6S4805C

48

5

1.2

6

160

30

78

80

441,850

NCS6S4812C

48

12

0.5

7

150

30

82

84

408,555

NCS6S4815C

48

15

0.4

7

150

30

83

84

416,319

INPUT CHARACTERISTICS

Parameter

Conditions

Min.

Typ.

Max.

Units

Voltage range

All NCS6S12 types

9

12

36

V

All NCS6S48 types

18

48

75

Under voltage lock out

Turn on threshold NCS6S12

8.5

V

Turn off threshold NCS6S12

7.5

Turn on threshold NCS6S48

16.7

Turn off threshold NCS6S48

15.8

Reflected ripple current

All NCS6S12 types

12

mA p-p

All NCS6S48 types

9

OUTPUT CHARACTERISTICS

Parameter

Conditions

Min.

Typ.

Max.

Units

Rated power

5V, 12V & 15V output types

6

W

3.3V output types

5

Voltage set point accuracy

±2

%

Line regulation

Low line to high line

0.002

0.2

%

10% total load to

100% total load

NCS6Sxx03C

0.5

0.6

%

Load Regulation

NCS6Sxx05C

0.3

0.5

NCS6Sxx12C, NCS6Sxx15C

0.06

0.2

Start-up Time

3.3V & 5V output types

2.5

mS

12V output types

4.6

15V output types

5.5

ISOLATION CHARACTERISTICS

Parameter

Conditions

Min.

Typ.

Max.

Units

Isolation test voltage

Flash tested for 1 seconds

1500

VDC

Resistance

Viso = 1kVDC

1

GΩ

Capacitance

225

pF

ABSOLUTE MAXIMUM RATINGS

Short-circuit protection (for SELV input voltages)

Continuous

Internal power dissipation

2.1W

Lead temperature 1.0mm from case for 10 seconds

(to JEDEC JESD22-B106 ISS C)

260°C

Minimum output load for specification (see application notes)

10% of rated load

Input voltage, NCS6 12V input types

40V

Input voltage, NCS6 48V input types

80V

1 Calculated using MIL-HDBK-217F FN2, parts stress method with nominal input voltage at full load.

FEATURES

RoHS compliant

4:1 Wide range voltage input

Operating temperature range –40°C to

85°C

Typical load regulation from 0.06%

1.5kVDC Isolation

Typical efficiency to 87%

12V & 48V Nominal input

UL 94V-0 Package materials

No electrolytic capacitors

Low noise

Under voltage lock out

Current fold back

PRODUCT OVERVIEW

The NCS6 series of DC/DC converters offers

single output voltages from input voltage ranges

of 9-36V and 18-75V. The NCS6 is housed in

an industry standard package with a standard

pinout. The NCS6 is packaged in a metal case for

improved EMI shielding and is also encapsulated

for superior thermal performance.

Applications include telecommunications, battery

powered systems, process control and distributed

power systems.