Standard Application
Ordering Information
Through-Hole
PT3104A = 5 Volts
PT3105A = 12 Volts
PT3106A = 15 Volts
Surface Mount
PT3104C = 5 Volts
PT3105C = 12 Volts
PT3106C = 15 Volts
(For dimensions and PC
board layout, see Package
Style 700.)
Pin-Out Information
·
Power Density 15 Watts/in
3
·
Wide Input Voltage Range
18V to 40V
·
81% Efficiency
·
500 VDC Isolation
·
Small Footprint
·
No External Components Required
Power Trends' PT3104A (5V),
PT3105A (12V) and PT3106A (15V)
Isolated DC-DC Converters advance the
state-of-the-art for board-mounted convert-
ers by employing high switching frequencies
greater than 650 KHz and planar magnetics
and surface-mount construction. They fea-
ture the industry's smallest footprint, a power
density of 15 Watts/in
3
, and operate
at 80% efficiency. They are designed for
Telecom, Industrial, Computer, Medical,
and other distributed power applications
requiring input-to-output isolation.
Pin
Function
1
Remote
ON/OFF
2
-V
in
3
+V
in
4
-V
out
5
+V
out
6
Do not connect
*
See Thermal Derating Curves
62
Power Trends, Inc.
27715 Diehl Road, Warrenville, IL 60555
(800) 531-5782
Fax: (630) 393-6902 http://www.powertrends.com
P T 3 1 0 0 S e r i e s
For assistance or to order, call
(800) 531-5782
2 4 V
15 WATT 24V TO 5V/12V/15V
ISOLATED DC-DC CONVERTER
Specifications
Characteristics
PT3100 SERIES
(T
a
=25
°
C unless noted)
Symbols
Conditions
Min
Typ
Max
Units
Output Current
I
o
Over V
in
range,
V
o
= 5V
0
--
3.0
A
V
o
= 12V
0
--
1.25
A
V
o
= 15V
0
--
1.0
A
Current Limit
I
cl
V
in
= 18V,
V
o
= 5V
--
4.0
--
A
V
o
= 12V
--
1.75
--
A
V
o
= 15V
--
1.4
--
A
On/Off Standby Current
I
in standby
V
in
= 24V, Pin 1 = -V
in
--
7
10
mA
Short Circuit Current
I
sc
V
in
= 24V,
V
o
= 5V
--
6.25
--
A
V
o
= 12V
--
2.5
--
A
V
o
= 15V
--
2.0
--
A
Inrush Current
I
ir
V
in
= 24V @ max I
o
--
1.0
2.0
A
t
ir
On start-up
--
1.0
5.0
mSec
Input Voltage Range
V
in
I
o
= 0.1 to max I
o
18.0
24.0
40.0
V
Output Voltage Tolerance
V
o
Over V
in
Range
T
A
= -20°C to +70°C
--
±1.0
±2.0
%V
o
Ripple Rejection
RR
Over V
in
range @ 120 Hz
--
60
--
dB
Line Regulation
Reg
line
Over V
in
range @ max I
o
--
±0.2
±1.0
%V
o
Load Regulation
Reg
load
10% to 100% of I
o
max
--
±0.4
±1.0
%V
o
V
o
Ripple/Noise
V
n
V
in
=24V, I
o
=3.0A, V
o
=5V
--
75
100
mV
pp
V
in
=24V, I
o
=1.25A, V
o
=12V
--
75
150
mV
pp
V
in
=24V, I
o
=1.25A, V
o
=15V
--
100
200
mV
pp
Transient Response
t
tr
50% load change
--
125
200
µSec
V
o
over/undershoot
--
3.0
5.0
%V
o
Efficiency
V
in
=24V, I
o
=3.0A, V
o
=5V
--
80
--
%
V
in
=24V, I
o
=1.25A, V
o
=12V
--
80
--
%
V
in
=24V, I
o
=1A, V
o
=15V
--
81
--
%
Switching Frequency
o
Over V
in
and I
o
,
V
o
=5V
800
850
900
kHz
V
o
=12V/15V
600
650
700
kHz
Recommended Operating
T
a
V
in
= 24V @ max I
o
-20
--
+70*
°C
Temperature Range
Free air convection, (40-60LFM)
Thermal Resistance
ja
Free Air Convection, (40-60LFM)
--
14
--
°C/W
Case Temperature
T
c
@ Thermal shutdown
--
--
100
°C
Storage Temperature
T
s
-40
--
110
°C
Mechanical Shock
--
Per Mil-STD-202F, Method 213B,
--
50
--
G's
6mS, Half-sine, mounted to a PCB
Mechanical Vibration
--
Per Mil-STD-202F, Method 204D,
--
10
--
G's
10-500Hz, Soldered in a PCB
Weight
--
--
--
28
--
grams
Isolation
--
--
500
--
--
V
Capacitance
--
--
--
1100
--
pF
Resistance
--
--
10
--
--
M
Flammability
--
Materials meet UL 94V-0
Remote On/Off
On
Open or 2.5 to 7.0 VDC above -V
in
Off
Short or 0 to 0.8 VDC above -V
in
+Vout
-Vout
-Vin
+Vin
3
2
4
5
On/Off
1
PT3100
Application Notes
Mechanical Outline
Product Selector Guide
Revised 5/15/98
Thermal Derating (T
a
)
(See Note 2)
PT3105, 12.0 VDC
(See Note 1)
PT3106, 15.0 VDC
(See Note 1)
Efficiency vs Output Current
Efficiency vs Output Current
Efficiency vs Output Current
Ripple vs Output Current
Ripple vs Output Current
Ripple vs Output Current
Thermal Derating (T
a
)
(See Note 2)
Thermal Derating (T
a
)
(See Note 2)
Power Dissipation vs Output Current
Power Dissipation vs Output Current
Power Dissipation vs Output Current
Note 1:
All data listed in the above graphs, except for derating data, has been developed from actual products tested at 25°C. This data is considered typical data for the DC-DC Converters.
Note 2:
Thermal derating graphs are developed in free air convection cooling of 40-60 LFM.
PT3104, 5.0 VDC
(See Note 1)
Efficiency - %
Ripple-(mV)
Iout-(Amps)
PD-(W
atts)
Efficiency - %
Efficiency - %
Ripple-(mV)
Ripple-(mV)
Iout-(Amps)
Iout-(Amps)
PD-(W
atts)
PD-(W
atts)
Iout-(Amps)
Iout-(Amps)
Iout-(Amps)
Iout-(Amps)
Iout-(Amps)
Iout-(Amps)
Vin-(Volts)
Vin-(Volts)
Vin-(Volts)
Iout-(Amps)
Iout-(Amps)
Iout-(Amps)
63
24V Bus Products
DA
T
A
SHEETS
Power Trends, Inc.
27715 Diehl Road, Warrenville, IL 60555
(800) 531-5782
Fax: (630) 393-6902 http://
www.powertrends.com
For assistance or to order, call
(800) 531-5782
C H A R A C T E R I S T I C D A T A
P T 3 1 0 0 S e r i e s
2 4 V
40
50
60
70
80
90
100
0
0.5
1
1.5
2
2.5
3
18V
24V
32V
40V
Vin
40
50
60
70
80
90
100
0.25
0.5
0.75
1
1.25
18V
24V
32V
40V
Vin
40
50
60
70
80
90
100
0.25
0.5
0.75
1
18V
24V
32V
40V
Vin
40V
10
30
50
70
90
110
0
0.5
1
1.5
2
2.5
3
32V
24V
18V
Vin
10
30
50
70
90
110
0.25
0.5
0.75
1
1.25
40V
32V
24V
18V
Vin
10
30
50
70
90
110
0.25
0.5
0.75
1
40V
32V
24V
18V
Vin
0
0.5
1
1.5
2
2.5
3
18
20
22
24
26
28
30
32
34
36
38
40
70
°
C
85
°
C
0
0.25
0.5
0.75
1
1.25
18
20
22
24
26
28
30
32
34
36
38
40
0
0.2
0.4
0.6
0.8
1
18
20
22
24
26
28
30
32
34
36
38
40
70
°
C
85
°
C
0
1
2
3
4
5
0
0.5
1
1.5
2
2.5
3
18V
24V
32V
40V
Vin
0
1
2
3
4
5
0.25
0.5
0.75
1
40V
32V
24V
18V
Vin
0
1
2
3
4
5
0.25
0.5
0.75
1
1.25
Vin
18V
24V
32V
40V
70°C
85°C
IMPORTANT NOTICE
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Copyright
©
1999, Texas Instruments Incorporated
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