DC-
TO
-DC C
ONVERTERS
High Efficiency (over 90%)
Up to 30A Output Current
Standard Inputs of 24V and 48V
Standard Outputs from 1.5V to 28V
Microprocessor Controlled
Isolated Input, Output & Baseplate
Industry Standard Pin-Out
Cover and Heatsink Optional
Fixed Switching Frequency
ADDITIONAL FEATURES
∎
DESCRIPTION
DESCRIPTIO N
∎
Series QED is Powercube’s second-generation DC/DC
converter product family. These converters are
board-mountable and pin-compatible with industry
standard products, yet offer superior efficiency and
capability.
Low-loss power conversion is achieved by utilizing
advances in synchronous rectification and integrated
planar magnetic technology. Internal control functions
performed by a microprocessor enable consistent
performance, accuracy and effectiveness when
responding to fault conditions. Advanced circuit design,
reduced power loss, and single board construction make
Series QED DC/DC converters highly reliable.
∎
∎
∎
∎
∎
∎
∎
∎
Wide Input Voltage Range
(36-75VDC for 48V,
18-36VDC
for 24V)
Input Under– and Over-Voltage Lockout
Precisely-Regulated Output Voltage
Adjustable Output Voltage Using “Trim Pin”
(-20% to +10%)
Low Output Ripple
Overload, Short Circuit & Over-Voltage Protection,
Thermal Shutdown (Auto recovery)
Shutdown Control
(Positive and Negative logic options available)
Digitally-Controlled Soft Start
High Reliability (963 FITS/1,038,000 Hours MTBF)
UL, TUV and CE Recognitions pending
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ISO 9001
POWERCUBE
A NATEL COMPANY
TEL: 1-800-866-3590 •
FAX: 1-800-866-3589
9340 OWENSMOUTH AVENUE • CHATSWORTH • CALIFORNIA 91311
DC-
TO
-DC C
ONVERTERS
PHYSICAL DIMENSIONS
2.28 (57.9)
0.19 (4.83)
NOTES
1. DIMENSIONS SHOWN IN INCHES AND
(MM)
2. TOLERANCE ±0.01 (±0.25) UNLESS
OTHERWISE SPECIFIED
1.90 (48.3)
2X Ø .080
±
.002
(2.03
±
.051)
7X Ø .040
±
.002
(1.02
±
.051)
0.53 (13.5)
MAX
0.20 (5.08)
IN
OUT
1.40
(35.6)
1.00
(25.4)
0.70
(17.8)
0.40
(10.2)
2.40
(61.0)
2.00
(50.8)
CASE
-S
T
ON/OFF
+S
+IN
+OUT
0.50
(12.7)
4X MOUNTING INSERTS,
THREADED THRU, M3
0.20
(5.20)
PIN FUNCTIONS
-IN
CASE
Input supply negative (return)
Case Ground is internally connected to the base-
plate, and may be tied to –In,–Out or Earth ground,
in order to reduce radiated emissions.
Digital input, enables or disables the output of the
converter. This signal is referenced to –IN, and is
pulled up to +9 VDC through a 10 Kohm resistor.
P (OPTION)
— An open or high (>3.5 VDC) will
enable the converter. A low (<1.0 VDC) will inhibit
the converter.
(STANDARD)
N (STANDARD)
— A low (<1.0 VDC) will enable the
converter. An open or high (>3.5 VDC) will inhibit
the converter.
+IN
Input supply positive
-OUT
-S
T
+S
+OUT
Output voltage negative (return)
Remote sense negative (return)
Trim. Used for adjusting the output voltage.
Remote sense positive
Output voltage positive
ON/OFF
TYPICAL APPLICATION
www.powercube.com
ISO 9001
POWERCUBE
A NATEL COMPANY
TEL: 1-800-866-3590 •
FAX: 1-800-866-3589
9340 OWENSMOUTH AVENUE • CHATSWORTH • CALIFORNIA 91311
DC-
TO
-DC C
ONVERTERS
ELECTRICAL CHARACTERISTICS -
V
IN
= +48V, V
OUT
= 5.0V, Baseplate Temperature = 25°C, unless otherwise specified.
PARAMETER
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Input/Output/Baseplate Isolation Voltage
Storage Temperature
Operating Temperature
ON/OFF Pin Voltage
INPUT CHARACTERISTICS
Operating Input Voltage Range
Input Under/Voltage Lockout/Turn On
Input Under/Voltage Lockout/Turn Off
Input Over/Voltage Shutdown/Turn Off
Input Over/Voltage Shutdown/Turn On
No Load Input Current
Off Converter Input Current
Inrush Current Transient Rating
Input Reflected Ripple Current
OUTPUT CHARACTERISTICS
Output Voltage Set Point
Output Voltage Load Regulation
Output Voltage Line Regulation
Output Voltage Regulation Over Temp.
Output Voltage Total Range
Output Voltage Ripple and Noise
Output Current Operating Range
Output Current-Limit Inception
DYNAMIC CHARACTERISTICS
Input Voltage Ripple Rejection
Output Voltage Load Transient Response
Turn-On Time
Turn-On Overshoot
THERMAL CHARACTERISTICS
Efficiency—100% Load
Efficiency—80% Load
Efficiency—60% Load
Efficiency—40% Load
Baseplate-to-Ambient Thermal Resistance
Board-to-Ambient Thermal Resistance
Thermal Shutdown
Thermal Shutdown Restart
ISOLATION CHARACTERISTICS
Input/Output/Baseplate Isolation Voltage
Input/Output Isolation Resistance
Input/Output Isolation Capacitance
CONTROL CHARACTERISTICS
Switching Frequency
ON/OFF Off-State Voltage (-P, Option)
On-State Voltage
ON/OFF Off-State Voltage (-N, Standard)
On-State Voltage
Output Voltage Trim Range
Output Voltage Remote Sense Range
Output Over-Voltage Protection
125
247
0
3.5
3.5
0
-20
250
253
1
10
10
1
+10
+10
KHz
VDC
VDC
VDC
VDC
%
%
%
Automatic Recovery
An open turns on the converter
An open turns off the converter
1,500
10
3,300
VDC
Mohm
pF
88
89
90
89
1.5
15
110
100
89
90
91
90
8.0
%
%
%
%
°C / Watt
°C / Watt
°C
°C
Temperature measured at the baseplate
Automatic Recovery
-60
200
200
10
3
15
dB
mV Pk-Pk
µS
mS
%
10,000µF Capacitance, No Output Load
50% to 75% of the Output Current
Settling Time to 1%
0
31
34
4.85
30
10
4.95
5.00
±2
±2
±20
5.05
±10
±10
±60
5.15
45
15
30
37
VDC
mVDC
mVDC
mVDC
VDC
mV
mV
ADC
ADC
Output Voltage Sags by 10%
0A to 30A Output Load
36V to 75V Input Voltage
-40°C to +85°C Baseplate Temperature
Any combination of load, line or temperature
Peak-to-Peak, 20 MHz bandwidth
RMS
36
33.5
30.5
77
76
48
34.5
31.5
78.5
77
70
1.5
0.01
35
75
35.5
33
79.5
78
80
3
VDC
VDC
VDC
VDC
VDC
mA
mA
A
2
s
mA
RMS
-55
-40
-25
100
1,500
+125
+85
+25
VDC
V
°C
°C
VDC
Temperature measured at the baseplate
MIN
TYP
MAX
UNITS
REMARKS
www.powercube.com
ISO 9001
POWERCUBE
A NATEL COMPANY
TEL: 1-800-866-3590 •
FAX: 1-800-866-3589
9340 OWENSMOUTH AVENUE • CHATSWORTH • CALIFORNIA 91311
DC-
TO
-DC C
ONVERTERS
ORDERING INFORMATION
H
Example: EDH
1
PACKAGE
SIZE
H = Half Brick
–
48
–
050
OUTPUT
VOLTAGE
–
P
–
00
HEATSIN K
(fin ht. plus base )
00 = No heatsink
01 = 0.25 (6.35) H
02 = 0.40 (10.2) H
03 = 0.50 (12.7) H
04 = 0.60 (15.2) H
05 = 0.70 (17.8) H
06 = 0.90 (22.9) H
07 = 0.25 (6.35) V
08 = 0.40 (10.2) V
09 = 0.50 (12.7) V
10 = 0.60 (15.2) V
11 = 0.70 (17.8) V
12 = 0.90 (22.9) V
Outputs of 1.5, 2.0, 2.5, 3.3 and 5.0VDC are limited to 30A; 12.0VDC is 12.5A; 15.0VDC is 10.0A; 24.0VDC is 6.25A; and 28.0VDC is 5.4A.
COMPONENTS
1 = Board only
2 = Board &
Baseplate
3 = Board, Baseplate
& Cover
INPUT
VOLTAGE
24 = (18V-36V)
48 = (36V-75V)
ON/OFF
LOGIC
P = Positive Logic
N= Negative Logic
015 = 1.5VDC
020 = 2.0VDC
025 = 2.5VDC
033 = 3.3VDC
050 = 5.0VDC
120 = 12.0VDC
150 = 15.0VDC
240 = 24.0VDC
280 = 28.0VDC
HEAT SINK DIMENSIONS
HALF-
HORIZONTAL or VERTICAL HALF-BRICK
2.40 (61.0)
45º TYP
4x .160 x .220 LONG
4x (4.06 x 5.59 LONG)
4x .200
(4x 5.08)
TYP
2.40 (61.0)
4x .250 (6.35) TYP
9x .138 (3.51)
2x .316 (8.03)
A
.001 IN/IN
(.025 MM/MM)
10x .043
±
.006
(10x 1.09
±
.152)
2x .047
±
.006
(2x 1.19
±
.152)
.120 (3.05)
www.powercube.com
ISO 9001
POWERCUBE
A NATEL COMPANY
Specifications subject to change without notice.
Printed in USA Copyright 2001 Powercube
TEL: 1-800-866-3590 •
FAX: 1-800-866-3589
9340 OWENSMOUTH AVENUE • CHATSWORTH • CALIFORNIA 91311
