NDL SERIES
Isolated 2W Wide Input Single Output DC-DC Converters
CTRL (PIN 3)
ISOLATION CHARACTERISTICS
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.
Parameter
Conditions
MIN
1000
1
TYP
MAX Units
VDC
Isolation Test Voltage
Resistance
Flash tested for 1 second
Viso=1000VDC
GW
GENERAL CHARACTERISTICS
Parameter
Conditions
MIN
TYP
MAX Units
CS (PIN 8)
Swiching Frequency
MAX rated load to MIN rated load 100
600
kHz
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.
Control voltage applied via 1k0 resistor,
output voltage must reduce to 0V
Control Pin (CTRL)
Input Current
4.0
6.0
mA
ENVIRONMENTAL
Parameter
Operation
Storage
Conditions
MIN
-40
-50
TYP
MAX Units
85
°C
°C
130
Cooling
Free air convection
RECOMMENDED TEST CIRCUIT
NDL05 POWER DERATING CURVE
2.5
VIN
+VOUT
2.0
1.75
100µF, 25V
Philips Part No.
13556101
1.5
1.0
0.5
0
CIN
COUT
NDL
GND
OV
5V & 12V: CIN 100µF, 25V Philips Part No.13556101
24V & 48V: CIN 10µF, 200V Philips Part No.15162109
4.5
5
6
7
8
9
Input Voltage (V)
MECHANICAL DIMENSIONS
21.80
PIN
1
2
3
5*
6
7
8
GND
VIN
CTRL
IC
+VOUT
0V
CS
0.30 max
0.20 min
9.20
3.20
2.01±0.50
NDL4805S
Weight: 5.0g
11.10
XYYWW
1
2
3
5
6
7
8
*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
4.60
3.60
0.55
0.45
2.54
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) 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
C&D Technologies (NCL), Inc.
3400 E Britannia Drive, Tucson,
Arizona 85706, USA
Tel: +1 (800) 547-2537
Fax: +1 (520) 741-4598
© C&D Technologies (NCL) Limited 2002
NDC NDL.4
email: sales@cdtechno.com
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.
www: http://www.dc-dc.com
Instructions for use are available from www.dc-dc.com
CANDD [ C&D TECHNOLOGIES ]
