NDL SERIES
Isolated 2W Wide Input Single Output DC-DC Converters
ISOLATION CHARACTERISTICS
Parameter
Conditions
MIN
TYP
MAX
Units
CTRL (PIN 3)
1000
1
VDC
GΩ
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.
Isolation Test Voltage
Resistance
Flash tested for 1 second
Viso=1000VDC
GENERAL CHARACTERISTICS
Parameter
Conditions
MIN
TYP
MAX
Units
Swiching Frequency
Control Pin (CTRL)
Input Current
MAX rated load to MIN rated load 100
Control voltage applied via 1k0 resistor,
output voltage must reduce to 0V
600
4.0
6.0
kHz
mA
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.
ENVIRONMENTAL
Parameter
Conditions
MIN
TYP
MAX
Units
Operation
Storage
Cooling
-40
-50
Free air convection
85
130
°C
°C
RECOMMENDED TEST CIRCUIT
V
IN
+V
OUT
100µF, 25V
Philips Part No.
13556101
OV
NDL05 POWER DERATING CURVE
2.5
2.0
1.75
1.5
1.0
0.5
0
4.5 5
C
IN
NDL
C
OUT
GND
5V & 12V:
C
IN
100µF, 25V Philips Part No.13556101
24V & 48V:
C
IN
10µF, 200V Philips Part No.15162109
6
7
Input Voltage (V)
8
9
MECHANICAL DIMENSIONS
21.80
9.20
3.20
2.01±0.50
0.30 max
0.20 min
NDL4805S
11.10
PIN
1 GND
2
V
IN
3
CTRL
5*
IC
6 +V
OUT
7
0V
8
C
S
Weight: 5.0g
XYYWW
1 2
4.60
3.60
3
2.54
5
6
7
8
0.55
0.45
*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.
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: +44 (0)1908 615232
Fax:+44 (0)1908 617545
email: info@cdtechno-ncl.com
www: http://www.dc-dc.com
C&D Technologies (NCL), Inc.
3400 E Britannia Drive, Tucson,
Arizona 85706, USA
Tel: +1 (800) 547-2537
Fax: +1 (520) 741-4598
email: sales@cdtechno.com
CANDD [ C&D TECHNOLOGIES ]
