Product Data Sheet
A
S
INGLE
O
UTPUT
60 W
ATT
DC/DC C
ONVERTER
VKP60LS Series
FEATURES
q
18-36V INPUT RANGE
q
SMALL SIZE: 2.3" X 2.4" X 0.5"
q
HIGH EFFICIENCY: 88% TYPICAL AT 5V
q
FIXED-FREQUENCY OPERATION
q
OPERATION TO +100°C BASEPLATE
TEMPERATURE
q
PRIMARY & SECONDARY REMOTE ON/OFF
q
SYNCHRONIZATION INPUT/OUTPUT
q
ADJUSTABLE OUTPUT VOLTAGE
q
REMOTE SENSE
q
PARALLEL/LOAD SHARING CAPABILITY
q
CONFORMS TO SAFETY PER UL1950,
EN 60950 AND CSA 22.2 #234
APPLICATIONS
q
DISTRIBUTED POWER ARCHITECTURES
q
TELECOMMUNICATIONS
q
BATTERY POWERED SYSTEMS
q
WORKSTATIONS
DESCRIPTION
The VKP60LS Series DC/DC converters present an eco-
nomical and practical solution for distributed power sys-
tem architectures which require high power density and
efficiency while maintaining system modularity and
upgradeability. With the ability to operate over a wide
input voltage range of 18 to 36 volts, these modules are
ideal for telecommunications and battery backup applica-
tions where input flexibility must be combined with
output voltage regulation. In addition, the outputs are
fully isolated from the inputs, allowing for a variety of
polarity and grounding configurations.
Innovative circuit design using surface mount compo-
nents results in a compact, efficient and reliable solution
to DC/DC conversion needs.
Internal power dissipation is minimized by the VKP60LS
Series' high efficiency and is aided by a metal baseplate,
to which all heat dissipative elements are attached.
Through holes are also provided to simplify unit mount-
ing or the addition of a heatsink for high temperature
applications.
The control circuitry of the VKP60LS Series has been
designed to provide overvoltage protection as well as
current limiting for continuous short-circuit protection.
All VKP60LS models are operation specified from rated
load to zero load.
3400 E Britannia Drive
l
Tucson, Arizona 85706
VKP60LS
REV B
5/98
l
Phone: 520.628.8292
l
Fax: 520.770.9369
l
Internet: http://www.cdpowerelectronics.com
Page 1
ELECTRICAL SPECIFICATIONS
Specifications typical at T
CASE
= +40°C, nominal input voltage, rated output current unless otherwise specified.
NOMINAL
INPUT
VOLTAGE
MODEL
VKP60LS03
VKP60LS05
VKP60LS12
VKP60LS15
VKP60LS24
VKP60LS28
(VDC)
24
24
24
24
24
24
RATED
OUTPUT
VOLTAGE
(VDC)
3.3
5
12
15
24
28
RATED
OUTPUT
CURRENT
(A)
18
12
5
4
2.5
2.2
INPUT CURRENT
TYP
(A)
2.95
2.84
2.78
2.75
2.75
2.82
MAX
(A)
2.98
2.88
2.81
2.78
2.78
2.85
EFFICIENCY (1)
MIN
(%)
83
87
89
90
90
90
TYP
(%)
84
88
90
91
91
91
COMMON SPECIFICATIONS
Specifications typical at T
CASE
= +40°C, nominal input voltage, rated output current unless otherwise specified.
PARAMETER
INPUT
Voltage Range
Reflected Ripple Current (2)
Reflected Ripple Current (3)
Input Ripple Rejection
No Load Input Current
Power Dissipation
No Load
Standby, Primary On/Off Disabled
Standby, Second On/Off Disabled
Maximum Input Current
Inrush Charge
Quiescent Operating Current
Primary On/Off Disabled
Secondary On/Off Disabled
OUTPUT
Rated Power
Set point Accuracy
Line Regulation
Load Regulation
Output Temperature Drift
Output Ripple, p-p (4)
Output Current Limit Inception
Output Short-Circuit Current (5)
Output Overvoltage Limit
CONDITIONS
MIN
18
Peak - Peak
Peak - Peak
DC to 1KHz
TYP
24
220
10
60
60
1.5
0.075
0.2
Rated Load, Low Input Line
V
IN
= 36VDC
3
9
0
High Line to Low Line
No Load to Rated Load
DC to 20MHz BW
0.02
0.02
±.02
1%
4.0
0.26
7
14
60
1
0.05
0.05
MAX
36
UNITS
VDC
mA
mA
dB
mA
W
W
W
A
mC
mA
mA
W
%
%
%
%/°C
V
OUT
, Nom
l
OUT
, Nom
l
OUT
, Nom
V
V
V
OUT
, Nom
V
OUT
, Nom
µSec
VDC
VDC
VDC
MΩ
pF
µA,
rms
50
Transient Response
Peak Deviation
Settling Time
ISOLATION
Input to Output
Input to Baseplate
Output to Baseplate
Resistance
Capacitance
Leakage Current
GENERAL
Efficiency, Line, Load, Temp. (6)
Switching Frequency
Remote Sense Compensation
Output Voltage Adjust Range (7)
Remote On/Off Control Inputs
Primary
Sink Current-Logic Low
Vlow
Vhigh
Secondary (8)
Sink Current-Logic Low
Vlow
Vhigh
Turn-on Time
External Synchronization Input (8)
Frequency
Pulse Width
Input High Voltage
Input Low Voltage
Input Impedance
Weight
( ) See NOTES on page 3.
Page 2
3.3V Output
5V Output
All Other Outputs
50 to 100% Load Step
di/dt = 75A/µSec
V
OUT
, 1% of Nominal Output
Peak Test for 2 Seconds
4
125%
125%
100%
5
6.6
130%
5%
50
35
1500
1500
500
10
2000
180
V
ISO
= 240VAC, 60Hz
390
400
±10%
410
0.5
KHz
V
V
OUT
, Nom
mA
V
V
µA
V
V
mSec
KHz
nSec
V
V
Ω
g (oz.)
Open Collector/Drain
2.5
1
6
Open Collector/Drain
600
0.7
2
5
450
450
5
1
85 (3.0)
Within 1% of Rated Output
350
350
4
0
3.5
400
400
See Figure 7 of Feature Characteristics
470
VKP60LS
REV B
5/98
COMMON SPECIFICATIONS (cont.)
Specifications typical at T
CASE
= +40°C, nominal input voltage, rated output current unless otherwise specified.
PARAMETER
TEMPERATURE
Operation/Specification
Storage
Shutdown Temperature
Thermal Impedance, case-ambient
NOTES:
(1) See Typical Performance Curves, page 5
(2) See Design Considerations, figure 11
(3) See Design Considerations, figure 12
(4) See Design Considerations, figure 10
(5) Continuous Mode
(6) See graphs for Efficiency vs. Output Load, V
IN
, T
CASE
(7) 3.3, 5V Models Limited in Trim Down Range
(8) Available only on package "A"
Device Family
Indicates 60 Watt Regulated Unit
Model Number
Selected from Table of Electrical Characteristics
Where:
x = Input Voltage (L = 24VDC)
y = Number of Outputs (Single "S")
zz = Output Voltage
Package Option
A or B (See Mechanical Section)
CONDITIONS
Case Temperature
Case Temperature
Case Temperature
MIN
-40
-55
+100
8.2
TYP
+25
+25
MAX
+100
+125
+115
UNITS
°C
°C
°C
°C/W
ORDERING INFORMATION
VKP60 xyzz A/B
/H
MECHANICAL PACKAGE/PINOUT "A"
Screening Option
PIN CONNECTIONS
1
2
3
4
5
6
7
8
9
10
11
12
SYNC IN
SYNC OUT
+VIN
-VIN
PRIMARY ON/OFF
PARALLEL
SEC. ON/OFF
-S
-VOUT
+VOUT
TRIM
+S
NOTES:
All dimensions are in inches.
PIN PLACEMENT TOLERANCE:
± 0.005"
Marked with: specific model or-
dered, date code, job code.
VKP60LS
REV B
5/98
Page 3
ABSOLUTE MAXIMUM RATINGS
Output Short-Circuit Duration ............................................................ Continuous
Internal Power Dissipation ..................................................................... 12 Watts
Lead Temperature (soldering, 10 seconds max) .................................... +300°C
Maximum Baseplate Temperature .......................................................... +100°C
Continuous Input Voltage ........................................................................ 36 VDC
Storage Temperature ............................................................................. +125°C
Input to Output Isolation Voltage ......................................................... 1500 VDC
MECHANICAL PACKAGE/PINOUT "B"
PIN CONNECTIONS
1
2
3
4
5
6
7
8
+VIN
ON/OFF
-VIN
-VOUT
-S
TRIM
+S
+VOUT
NOTES:
All dimensions are in inches.
PIN PLACEMENT TOLERANCE:
± 0.005"
Marked with: specific model or-
dered, date code, job code.
The information provided herein is believed to be reliable; however, C&D TECHNOLOGIES assumes no responsibility for inaccuracies or omissions. C&D TECHNOLOGIES assumes no responsibility
for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specifications are subject to change without notice. No patent rights or licenses to any
of the circuits described herein are implied or granted to any third party. C&D TECHNOLOGIES does not authorize or warrant any C&D TECHNOLOGIES product for use in life support devices/systems
or in aircraft control applications.
Page 4
VKP60LS
REV B
5/98
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