NDT SERIES

Isolated 3W Wide Input Dual Output DC-DC Converters

C&D Technologies (NCL) Ltd

Tanners Drive, Blakelands North

Milton Keynes MK14 5BU, England

Tel: +44 (0)1908 615232

Fax:+44 (0)1908 617545

email: info@cdtechno-ncl.com

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

C&D Technologies Inc.

3400 E Britannia Drive, Tucson,

Arizona 85706, USA

Tel: +1 (800) 547-2537

Fax: +1 (520) 741-4598

email: sales@cdtechno.com

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 NDT.1

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

APPLICATION NOTES

TERMINOLOGY

Weight: 6.5g

Unless otherwise stated all dimensions in inches ±0.010 (mm ±0.25mm).

1.270(32.26)

0.577(14.66)

0.275(7.00)

0.185(4.70)

0.145(3.70)

0.033(0.84)

0.021(0.54)

0.012(0.30)

0.008(0.20)

0.900(22.86)

0.600(15.25)Max

MECHANICAL DIMENSIONS

0.100(2.54)

LINE REGULATION

The percentage change in output voltage between low input voltage and high input voltage,

measured with fixed output load

ie. A 5V output part with an output voltage of 5.05V @ high input voltage and 5.03V @

low input voltage would have a line regulation of 0.4%.

line regulation =

V

V

Where V

PIN CONNECTIONS

TUBE OUTLINE DIMENSIONS

EXTERNAL CAPACITANCE

Although these converters will work

without external capacitors, they ar e

necessary in order to guarantee the full

parametric performance over the

full line and load range. All parts have

been tested and characterised

using the following values and test circuit

TEST CIRCUIT

Value

C

IN

C

OUT

10µF, 200V

47µF, 25V

GND

0V

NDT

0.185

(4.70)

0.200

(5.08)

2

23

3

22

9

16

11

14

Common

Common

24 Pin DIL (top view)

PACKAGING DETAILS

Order Code

Packaging Style

QTY

NDTDXXXX

Tube

15

0.815±0.022

(20.70±0.55)

0.268±0.022

6.80±0.55

0.031±0.006

(0.80±0.15)

Tube Length: 20.472±0.079(520mm±2mm)

Tube Material: Antistatic coated clear pvc.

0.657±0.022

(16.70±0.55)

0.217±0.001

(5.50±0.25)

0.657±0.031

(16.70±0.80)

RECOMMENDED FOOTPRINT DETAILS

0.100(2.54)

Ø

0.057(1.45)

0.051(1.30)

8 Holes

0.100

(2.54)

Ø0.1

All pins on a 0.100(2.54) pitch

and within 0.010(0.25) of true position.