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E-mail:info@make-ps.com
1500UR series
Single & Dual Output
DC/DC Converter
F
EATURES
•
6 sided Continuous Shielding
•
4:1 Ultra-Wide Input Voltage Range
•
Output Voltage Trim (Single Output only)
•
-25
o
C to +75
o
C Operating Temperature Range
•
Efficiency to 83%
•
1400 VDC Input/Output Isolation
•
9.4W/In
3
Power Density
D
ESCRIPTIONS
The 1500UR series is a family of miniature 15W DC/DC
converters specifically designed for board mount power
distribution applications where space is critical, but
performance and power cannot be sacrificed. Standard
features include an ultra-wide 4:1 input voltage range,
efficiency as high as 83% and continuous short circuit
protection by input current limiting. 14 models operate from
(4:1) input voltage ranges of 10 to 40 VDC or 18 to 72 VDC and
provide tightly regulated outputs of 3.3, 5, 12, 15, ±5, ±12 or
±15 VDC. All models are packaged in a compact, low profile
2” X 2” X 0.4” metal case.
I
NPUT
C
HARACTERISTICS
Min Typ Max Unit/Comments
Input Voltage
20 VDC Input Models
36 VDC Input Models
Input Fuse Requirements
20 VDC Input Models
36 VDC Input Models
Reverse Polarity Input
Current
Input Filter
10
18
20
36
2000
1000
12
40
72
VDC
VDC
mA; Slow blow type
mA; Slow blow type
Amp
LC Type
O
UTPUT
C
HARACTERISTICS
Min Typ Max Unit/Comments
Output Voltage Accuracy
3.3V Outputs
All Other Models
Voltage Balance:
Dual Outputs
Voltage Trim Range (Single Only)
3.3 Vout
All Other Models
Line Regulation
Load Regulation
Ripple/Noise
3.3V Outputs
All Other Models
Short Circuit Protection
Transient Recovery Time
Temperature Coefficient
±100 mV
1
±1.0 %
1
±2.0 %; Equal Output Loads
±3.0
±5.0
±1.0
±1.0
%
%; Output Voltage
%
2
%
3
G
ENERAL
C
HARACTERISTICS
Switching Frequency
Isolation Voltage
Isolation Resistance
Isolation Capacitance
MTBF (MIL-HBK-217F)
Min Typ Max Unit/Comments
kHz
130
VDC, 1 minute
1400
Mohm, 500VDC
1000
pF, 100kHz, 1Volt
100
Thousand Hours,
865
+25
o
C, Ground
Benign
100 mV; p-p, Nom.Line FL,
20Mhz B.W. using
1
μf
bypass capacitor
1.25 %; p-p, Nom.Line FL,
20Mhz B.W. using
1μf bypass capacitor
Continuous, Auto-
matic Recovery
300
μS
to within1% error
band for 50% step
load change
±0.02 % per
o
C
1
2
3
= Output voltage at nominal line & FL
= Output voltage measured from minimum input line to maximum
= Output voltage measured from FL to 10% Load
>> B-137
www.make-ps.com
E
NVIRONMENTAL
S
PECIFICATIONS
Operating Temp. Range
Storage Temp. Range
Relative Humidity
Cooling
Min
-25
-55
Typ Max
+75
+125
+95
Unit/Comments
C; Ambient
o
C
% Humidity; non-
condensing
Free-Air Convection
o
E-mail:info@make-ps.com
P
HYSICAL
C
HARACTERISTICS
Case Size
Case Material
Shield Connection
20 VDC Input Models
36 VDC Input Models
Flammability
Weight
Unit/Comments
2.0 X 2.0 X 0.4 inches
(51.0 X 51.0 X 10.2 mm)
Coated Metal with Non-
Conductive Base
Negative Input, Pin 2
Positive Input, Pin 1
UL94V-0
79 Grams
O
UTLINE
D
RAWING
2.00 (50.8)
0.40
(10.2)
0.40
(10.2)
0.60
(15.2)
3
+Vout
4
5
0.040± .005
(1.01)
DIA.
2.00
0.80 (50.8)
(20.3)
COM -Vout
BOTTOM
+Vin -Vin
1
2
SIDE
0.60
(15.2)
0.90
(22.9)
0.22MIN.
(5.6)
0.40
(10.2)
0.20
(5.1)
P
IN
O
UT
C
HART
Pins
1
2
3
4
5
Single
+Vin
- Vin
+ Vout
Trim
- Vout
Dual
+ Vin
- Vin
+ Vout
± Common
- Vout
Notes:
1. Unless otherwise specified dimensions are in inches (mm).
Tolerances
Inches
mm
X.XX = ±0.02
X.X = ±0.5
X.XXX= ±0.010
X.XX = ±0.25
All specifications are typical at nominal input, nominal load and 25
°
C unless otherwise specified.
External, low ESR, 10 microfarad (minimum) capacitor across output is recommended for operation.
>> B-138
www.make-ps.com
O
UTPUT
V
OLTAGE
T
RIM
(1500UR S
ERIES
, S
INGLE OUTPUT ONLY
)
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The converter’s output voltage may be trimmed to
±5%
of the nominal output voltage.
TRIM UP
Trim output voltage up by connecting an external resistor between Pins 4 and 5. Use the following equation.
Reference Table 1 for variable A.
Radj-up =
Example:
A
Δ
%
- 24 (kΩ)
If we want to trim 5% up for 12V output units,
where A = 1.97,
Δ
% = 0.05
Radj-up =
1.97
0.05
- 24 kΩ
=
15.4 kΩ
Table 1.
Output Voltage
A
3.3V
5V
12V
15V
0.75
1.25
1.97
2.07
TRIM DOWN
Trim output voltage down by connecting an external resistor between Pins 3 and 4. Use the following
equation. Reference Table 2 for variable C and D.
Radj-down =
Example:
C
Δ
%
- D (kΩ)
If we want to trim 2% down for 5V output units,
where C = 1.25, D = 26.5,
Δ
% = 0.02
Radj-down =
1.25
0.02
- 26.5 kΩ
=
36 kΩ
Table 2.
Output Voltage
C
D
3.3V
5V
12V
15V
1.25
1.25
7.55
10.3
26
26.5
33.5
36.4
>> B-140
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