DC-DC Converters
PS20 Series
14.4 - 25 Watt Wide Input
PCB Mounting
Single Output
Features
• 14.4 - 25W Isolated Output
• High Efficiency up to 91%
• Fixed 300KHz Switching Frequency
• 2 : 1 Input Range
• Regulated Outputs
• Continuous Short Circuit Protection
• Six-Sided Metal Case or Open-Frame
” X 1.6” size
• 2
• Industry Standard Pin-Out
www.powersolve.co.uk
MODEL INPUT OUTPUT OUTPUT CURRENT INPUT CURRENT %EFF
VOLTAGE VOLTAGE NO LOAD FULL LOAD
PS20-24-1V8 18-36 VDC 1.8 VDC 8 A 70 mA 723 mA 83
PS20-24-2V5 18-36 VDC 2.5 VDC 8 A 70 mA 970 mA 86
PS20-24-3V3 18-36 VDC 3.3 VDC 6 A 70 mA 940 mA 88
PS20-24-05 18-36 VDC 5.0 VDC 5 A 70 mA 1170 mA 89
PS20-24-12 18-36 VDC 12 VDC 2 A 50 mA 1136 mA 88
PS20-24-15 18-36 VDC 15 VDC 1.6 A 50 mA 1136 mA 88
PS20-48-1V8 36-75 VDC 1.8 VDC 8 A 50 mA 353 mA 85
PS20-48-2V5 36-75 VDC 2.5 VDC 8 A 50 mA 479 mA 87
PS20-48-3V3 36-75 VDC 3.3 VDC 6 A 50 mA 465 mA 89
PS20-48-05 36-75 VDC 5.0 VDC 5 A 50 mA 572 mA 91
PS20-48-12 36-75 VDC 12 VDC 2 A 30 mA 562 mA 89
A 30 mA 562 mA 89
PS20-48-15
NOTE: For open frame version add suffix ‘O’
36-75 VDC
15
VDC
1.6
NOTE: 1. Nominal Input V
Powersolve Electronics Ltd. Units 8A, Arnhem Road, Newbury, RG14 5RU. England
oltage 24, 48 VDC
1
Tel:01635 521858 Fax: 01635 523771 Email: sales@powersolve.co.uk
DC-DC Converters
100
50
+100
˚C
-
3.5˚C for Metal Case Model
-2.5˚C for Open Frame Model
+
60 +71
-40
L
oad
(
%)
TRIM (5) 10K ohms
TRIMPOT
+Vout (7)
-Vout (6)
TRIM (5)
TRIM DOWN
TRIM UP
+Vout (7)
-Vout (6)
HIGH SIGNAL HERE
DISABLE OUTPUT
O
N/OFF (1)
-VIN (3)
100
5
0
+100
˚C
-3.5˚C for Metal Case Model
-2.5˚C for Open Frame Model
+60 +71
-
40
L
oad
(
%)
100
50
+100
˚C
-
3.5˚C for Metal Case Model
-2.5˚C for Open Frame Model
+60 +71
-40
Load
(%)
HIGH SIGNAL HERE
DISABLE OUTPUT
ON/OFF (1)
-VIN (3)
100
50
+
100
˚C
-3.5˚C for Metal Case Model
-2.5˚C for Open Frame Model
+60 +71
-40
Load
(%)
All Dimensions in Inches (mm)
T
olerance .xx =+.
04, .xxx=+.
010
4
3
1
0.70
(17.78)
0.20
(5.08)
0.60
(15.24)
0.35
(8.9)
0.04
(
1.02)
0
.22
(5.60)
DIA
8
7
6
5
BOTT
Open Frame (option O)
OM
VIEW
1.95
(49.5)
1.80
(45.72)
0.50
(12.70)
1.55
(
39.4)
0.70
(17.78)
0.30
(
7.62)
0.10
(
2.54)
100
50
+100
˚C
-
3.5˚C for Metal Case Model
-
2.5˚C for Open Frame Model
+
60 +71
-40
L
oad
(
%)
TRIM (5) 10K ohms
TRIMPOT
+Vout (7)
-Vout (6)
TRIM (5)
TRIM DOWN
TRIM UP
+Vout (7)
-Vout (6)
All Dimensions in Inches (mm)
T
olerance .xx =+.
04, .xxx=+.
010
HIGH SIGNAL HERE
DISABLE OUTPUT
O
N/OFF (1)
-VIN (3)
4
3
1
0.70
(
17.78)
0.20
(
5.08)
0.60
(15.24)
0.35
(8.9)
0
.04
(1.02)
0
.22
(5.60)
D
IA
8
7
6
5
BOTT
Open Frame (option O)
OM
VIEW
1.95
(
49.5)
1.80
(
45.72)
0.50
(12.70)
1.55
(39.4)
0.70
(
17.78)
0.30
(
7.62)
0.10
(
2.54)
All Dimensions in Inches (mm)
Tolerance .xx =+.04, .xxx=+.010
4
3
1
0.70
(17.78)
0.20
(5.08)
0.60
(15.24)
0.35
(8.9)
0.04
(1.02)
0.22
(5.60)
DIA
8
7
6
5
BOTT
Metal Case (option O)
OM
VIEW
1.95
(49.5)
1.80
(45.72)
0.50
(12.70)
1.55
(39.4)
0.70
(17.78)
0.30
(7.62)
0.10
(2.54)
lectrical Specification
E
INPUT
Input Voltage Range 24V 18-36V
8V 36-75V
ndervoltage lockout 24Vin power up 17V
U
Positive Logic Remote ON/OFF
3,4
4Vin power down 16V
2
8Vin power up 34V
4
48Vin power down 32V
4
Input Filter Pi Type
UTPUT
O
oltage Accuracy +1% max.
V
ransient Response : 75% - 100% Step Load Change
T
1.8V & 2.5V & 3.3V & 5V
0mV RMS, max. 75mV pk-pk, max.
2
12V & 15V 20mV RMS, max. 100mV pk-pk, max.
Temperature Coefficient +0.02%/°C
Output Line Regulation
utput Load Regulation
O
utput Over Voltage Protection (Zener Diode Clamp)
O
.8V & 2.5V 3.3V
1
.3V 3.9V
3
1
2
5V 6.2V
12V 15V
15V 18V
Output Curre
Output Short Circ
nt Limit, % Nominal Output 110% - 150%
uit Protection Continuous (hiccup mode)
GENERAL
fficiency See Table
E
solation Voltage Input/Output 1500VDC
I
Isolation Resistance 108ohms min.
Switching Frequency 300KHz, Typ.
Operating Ambient Temperature
5
-40°C to +85°C
Case Temperature 100°C max.
Storage Temperature -55°C to +125°C
Thermal Shutdown Case Temp 110°C Typ.
Dimensions
Metal Case 2.00 x 1.60 x 0.45 inches (50.8 x 40.6 x 11.4 mm)
Open Frame 1.95 x 1.55 x 0.35 inches (49.5 x 39.4 x 8.9 mm)
CASE MATERIAL
Metal Case Material Black Coated Copper with Non-Conductive Base
+0.5% max.
.5% max.
+0
www.powersolve.co.uk
OTE:
N
. Measured From High Line to Low Line
1
. Measured From Full Load to 10% Load
2
. Logic Compatability - CMOS or Open ..
3
ollector TTL ref. to -Vin
C
Module ON
Module OFF
4. Suffix ‘N’ to the Model Number with
Negative Logic remote ON/OFF
Module ON
Module OFF
5. Derating:
Metal Case: Above 71°C, Linearly to
ero Power at 100°C
Z
Open Frame: Above 60°C, Linearly to
Zero Power at 100°C
6. Suffix ‘O’ to the Model Number with
Open Frame Type.
. . . .>3.5Vdc or Open Circuit
. . . . . . . . . . . . . . . . . . . . .<1.8Vdc
. . . . . . . . . . . . . . . . . . . . . .>1.8Vdc
. . .<3.5Vdc or Open Circuit
All Specifications Typical At Nominal Line, Full Load and 25°C Unless Otherwise Noted.
Powersolve Electronics Ltd. Units 8A, Arnhem Road, Newbury, RG14 5RU. England
Tel:01635 521858 Fax: 01635 523771 Email: sales@powersolve.co.uk
Pin Function
1 ON/OFF Control
3 -V Input
4
5 Trim
6 -V Output
7
8 No Pin
Pin Function
1 ON/OFF Control
3 -V Input
4 +V Input
5
6 -V Output
7 +V output
8
Pin Connection
+V Input
+V output
Pin Connection
rim
T
No Pin
Derating Cur
ve
External Output Trimming
Remote ON/OFF Contr
ol
2
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