Datasheet NDL0505S, NDL0509S, NDL4805S, NDL4812S, NDL0512S Datasheet (cdtechno)

Isolated 2W Wide Input Single Output DC-DC Converters

SELECTION GUIDE

NDL SERIES

FEATURES

■ 2:1 Wide Range Voltage Input

■ Continuous Short Circuit Protection

with Current Foldback

■ Operating Temperature Range

–40°C to 85°C

■ 0.5% Regulation

■ 1kVDC Isolation

■ Efficiency to 83%

■ 5V, 12V, 24V & 48V Nominal Input

■ 5V, 9V, 12V & 15V Output

■ Power Density 0.9W/cm

3

■ External Control

■ No Electrolytic Capacitors

■ Low Noise

■ Fully Encapsulated

DESCRIPTION

The NDL series is a range of high
performance miniature DC-DC converters
having regulated outputs over the wide
temperature range of –40°C to 85°C. The
input voltage range is 2:1 with the output
power at 2 watts and the input to output
isolation is 1kVDC. Continuous short circuit
protection, external control and extremely
small SIP packaging provide state of the art
functionality. The use of ceramic capacitors
and a ceramic substrate, with a tough chip
and wire bonded MOSFET power transistor
die and SMD construction, provide genuine
high reliability. Nominal input voltages of
5,12,24 and 48V with output voltages of
5,9,12 and 15V are available as standard
with custom parts on request. The plastic case
is rated to UL 94V-0 with encapsulant to UL
94V-1. Connection pins are phosphor bronze
with a 60/40 tin lead solder dipped finish.

www.dc-dc.com

Nominal Rated

Input Output

Voltage Voltage Min Load3Full Load Full Load MTTF

Output Current

1

Input

Current

2

Order Code (V) (V) (mA) (mA) (mA) (%) (pF) kHrs

NDL0505S
NDL0509S
NDL0512S
NDL0515S
NDL1205S
NDL1209S
NDL1212S
NDL1215S
NDL2405S
NDL2409S
NDL2412S
NDL2415S
NDL4805S
NDL4809S
NDL4812S
NDL4815S

5 5 100 400 606 66 26 2015
5 9 55 222 558 71 27 1998
5 12 42 167 559 71 26 1980

5 15 33 134 549 73 27 1965
12 5 100 400 228 73 39 1994
12 9 55 222 211 79 38 1981
12 12 42 167 208 80 47 1961
12 15 33 134 206 81 47 1947
24 5 100 400 112 74 37 1722
24 9 55 222 102 81 40 1711
24 12 42 167 100 81 51 1696
24 15 33 134 100 83 58 1685
48 5 100 400 57 73 39 1719
48 9 55 222 52 80 40 1709
48 12 42 167 51 81 53 1694
48 15 33 134 51 82 65 1683

INPUT CHARACTERISTICS

Parameter Conditions MIN TYP MAX Units

All NDL05 Types 4.5 5 9

Voltage Range

All NDL12 Types 9 12 18

All NDL24 Types 18 24 36

VDC

All NDL48 Types 36 48 72

All NDL05 types when 100µF at input 250

Reflected
Ripple
Current

All NDL12 types when 100µF at input 150

All NDL24 types when 10µF at input 300 380

All NDL48 types when 10µF at input 140 170

mA p-p

OUTPUT CHARACTERISTICS

Parameter Conditions

All NDL 05/12 types with external

Voltage Set
Point Accuracy

Line Regulation

input/output capacitors

All NDL 24/48 types with external

input/output capacitors

All NDL 05/12 types, Low line to high line,

With external input/output capacitors

All NDL 24/48 types, Low line to high l i n e ,

With external input/output capacitors

All NDL 05/12 types, Minimum load to rated load,

Load Regulation

Ripple

Noise

With external input/output capacitors

All NDL 24/48 types, Minimum load to rated load,

With external input/output capacitors

B/W=20Hz to 300kHz

With external input/output capacitors

All NDL 05 types, B/W=DC to 100MHz

With external input/output capacitors

All NDL 12 types, B/W=DC to 100MHz

With external input/output capacitors

All NDL 24/48 types, B/W=DC to 100MHz

With external input/output capacitors

Shutdown Power VINnominal 2.8 mW

5

TYP MAX Units

±1 ±5

±2 ±5

0.05 0.5

0.04 0.4

0.2 0.75

0.2 0.75

5 10

mV rms

20 35

110 170

mV p-p

50 100

ABSOLUTE MAXIMUM RATINGS

Short-circuit protection continuous
Lead temperature 1.5mm from case for 10 seconds 300°C
Control pin input current 10mA
Input voltage 05 types 10V
Input voltage 12 types 20V
Input voltage 24 types 40V
Input voltage 48 types 80V

1 Refer to power derating graph for operation of 5V input types at 4.5 to 6V.
2 Measured at full load with external input/output capacitors, refer to recommended test circuit.
3 A lower load condition is entirely safe but higher levels of output ripple will be experienced.
4 Calculated using MIL-HDBK-217F with nominal input voltage at full load.
5 Refer to recommended test circuit for external input/output capacitors.
All specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise specified.

4

%

%

%

NDL SERIES

Isolated 2W Wide Input Single Output DC-DC Converters

ISOLATION CHARACTERISTICS

Parameter Conditions MIN TYP MAX Units

Isolation Test Voltage Flash tested for 1 second 1000 VDC
Resistance Viso=1000VDC 1 GΩ

GENERAL CHARACTERISTICS

Parameter Conditions MIN TYP MAX Units

Swiching Frequency MAX rated load to MIN rated load 100 600 kHz
Control Pin (CTRL)

Input Current

Control voltage applied via 1k0 resistor,
output voltage must reduce to 0V

4.0 6.0 mA

ENVIRONMENTAL

Parameter Conditions MIN TYP MAX Units

Operation -40 85 °C
Storage -50 130 °C
Cooling Free air convection

RECOMMENDED TEST CIRCUIT

V

IN

GND

C

IN

NDL

C

OUT

+V

OUT

100µF, 25V
Philips Part No.
13556101

OV

CTRL (PIN 3)

Provides an on/off function. The converter
is on when CTRL is not connected or high
impedance (Z). The CTRL pin will turn the
converter off as indicated in general
characteristics.

CS (PIN 8)

Additional capacitance, up to 100uF can be
added from CS to pin 7. A low ESR
capacitor if fitted will precede the output filter
inductor and will improve ripple and noise.

NDL05 POWER DERATING CURVE

2.5

2.0

1.75

1.5

1.0

0.5

5V & 12V: C
24V & 48V: C

100µF, 25V Philips Part No.13556101

IN

10µF, 200V Philips Part No.15162109

IN

MECHANICAL DIMENSIONS

21.80

9.20

NDL4805S

4.60

3.60

11.10

1 2 3 5 6 7 8

XYYWW

2.54

0.55

0.45

0

4.5 5 6 7 8 9

0.30 max

0.20 min

3.20

2.01±0.50

*Pin 5 is internally connected and must have no external connection
All dimensions in mm XX.XX ±0.25mm. All pins on a 2.54mm pitch and

within ±0.25mm of true position.

Input Voltage (V)

PIN

1 GND
2 V

IN

3 CTRL

5* IC

6 +V

OUT

7 0V
8 C

S

Weight: 5.0g

C&D Technologies (NCL) Limited reserve the right to alter or improve the
specification, internal design or manufacturing process at any time, without
notice. Please check with your supplier or visit our web site to ensure that
you have the current and complete specification for your product before use.

© C&D Technologies (NCL) Limited 2002 NDC NDL.4
No part of this publication may be copied, transmitted or stored in a

retrieval system or reproduced in any way including, but not limited to,
photography, photocopy, magnetic or other recording means, without prior
written permission from C&D Technologies (NCL) Limited.

Instructions for use are available from www.dc-dc.com

C&D Technologies (NCL) Ltd

Tanners Drive, Blakelands North
Milton Keynes MK14 5BU, England
Tel: [phone]
Fax:[phone]
email: [e-mail]

www: http://www.dc-dc.com

C&D Technologies (NCL), Inc.

3400 E Britannia Drive, Tucson,
Arizona 85706, USA
Tel: [phone]
Fax: [phone]
email: [e-mail]