Standard Application
-40C to +85C Operating
Temperature Range
1500 VDC Isolation
Power Density 15 Watts/in
3
Wide Input Voltage Range
36V to 75V
82% Efficiency
Small Footprint
Fast Transient Response
UL Approved
Pin-Out Information
P T 4 1 0 0 S e r i e s
For assistance or to order, call
(800) 531-5782
4 8 V
48V 15 WATT ISOLATED
DC-DC CONVERTER
70
Power Trends, Inc.
27715 Diehl Road, Warrenville, IL 60555
(800) 531-5782
Fax: (630) 393-6902 http://www.powertrends.com
*
See thermal derating curves
Power Trends' PT4100 series of Isolated
48V DC-DC Converters advance the state-of-
the-art for board-mounted converters by
employing high switching frequencies greater
than 650 KHz and planar magnetics and sur-
face-mount construction. They feature the
industry's smallest footprint, a power density of
15 Watts/in
3
, and operate at 82% efficiency.
They are designed for Telecom, Industrial,
Computer, Medical, and other distributed
power applications requiring input-to-output
isolation and an industrial temperature range.
Ordering Information
Through-Hole
PT4101A = 5 Volts
PT4102A = 12 Volts
PT4103A = 15 Volts
PT4110A = 3.3 Volts
PT4117A = 5.2 Volts
Surface Mount
PT4101C = 5 Volts
PT4102C = 12 Volts
PT4103C = 15 Volts
PT4110C = 3.3 Volts
PT4117C = 5.2 Volts
(For dimensions and PC
board layout, see Package
Style 700.)
Pin Function
1
Remote
ON/OFF
2
-V
in
3
+V
in
4
-V
out
5
+V
out
6
Do not connect
Specifications
Characteristics
PT4100 SERIES
(T
a
=25
C unless noted)
Symbols
Conditions
Min
Typ
Max
Units
Output Current
I
o
Over V
in
range
V
o
= 3.3V
0
--
4.0
A
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
= 36V
V
o
= 5V
--
4.00
--
A
V
o
= 12V
--
1.75
--
A
V
o
= 15V
--
1.4
--
A
On/Off Standby Current
I
in standby
V
in
= 48V, Pin 1 = -V
in
--
7
10
mA
Short Circuit Current
I
sc
V
in
= 48V
V
o
= 5V
--
5.5
--
A
V
o
= 12V
--
3.5
--
A
V
o
= 15V
--
2.0
--
A
Inrush Current
I
ir
V
in
= 48V @ max I
o
--
0.6
1.0
A
t
ir
On start-up
--
1.0
5.0
mSec
Input Voltage Range
V
in
I
o
= 0.1 to max I
o
36.0
48.0
75.0
V
Output Voltage Tolerance
V
o
Over V
in
Range
T
A
= -40C to +85C
--
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
=48V, I
o
=3.0A,
V
o
=5V
--
75
100
mV
pp
V
in
=48V, I
o
=1.25A, V
o
=12V
--
120
150
mV
pp
V
in
=48V, I
o
=1.0A,
V
o
=15V
--
100
200
mV
pp
Transient Response
t
tr
50% load change
--
100
200
Sec
V
o
over/undershoot
--
3.0
5.0
%V
o
Efficiency
V
in
=48V, I
o
=3.0A, V
o
=5V
--
80
--
%
V
in
=48V, I
o
=1.25A, V
o
=12V
--
81
--
%
V
in
=48V, I
o
=1A, V
o
=15V
--
82
--
%
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
= 48V @ max I
o
-40
--
+85*
C
Temperature Range
Free air convection, (40-60LFM)
200 LFM
PT4110
0
--
+70
C
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
--
--
1500
--
--
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
PT4100
Revised 3/1/99
Application Notes
Mechanical Outline
Product Selector Guide
0
0.5
1
1.5
2
2.5
3
36
40
44
48
52
56
60
64
68
72
Note 1:
All data listed in the above graphs, except for derating data, has been developed from actual products tested at 25C. This data is considered typical data for the DC-DC Converter.
Note 2:
Thermal derating graphs are developed in free air convection cooling of 40-60 LFM.
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 4 1 0 0 S e r i e s
4 8 V
71
48V 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
PT4102, 12.0 VDC
(See Note 1)
PT4103, 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)
Thermal Derating (T
a
)
(See Note 2)
Power Dissipation vs Output Current
Power Dissipation vs Output Current
Power Dissipation vs Output Current
PT4101, 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)
Vin-(Volts)
Vin-(Volts)
Vin-(Volts)
Iout-(Amps)
Iout-(Amps)
Iout-(Amps)
85
70
Iout-(Amps)
40
50
60
70
80
90
100
0
0.5
1
1.5
2
2.5
3
36V
48V
60V
72V
Vin
40
50
60
70
80
90
100
0.25
0.5
0.75
1
1.25
36V
48V
60V
72V
Vin
40
50
60
70
80
90
100
0.25
0.5
0.75
1
36V
48V
60V
72V
Vin
0
20
40
60
80
100
120
0.25
0.5
0.75
1
72V
60V
48V
36V
Vin
0
20
40
60
80
100
120
0.25
0.5
0.75
1
1.25
72V
60V
48V
36V
Vin
0
20
40
60
80
100
120
0
0.5
1
1.5
2
2.5
3
72V
60V
48V
36V
Vin
0
0.25
0.5
0.75
1
1.25
36
40
44
48
52
56
60
64
68
72
85
70
0
0.25
0.5
0.75
1
36
40
44
48
52
56
60
64
68
72
85
70
0
1
2
3
4
5
0.25
0.5
0.75
1
72V
60V
48V
36V
Vin
0
1
2
3
4
5
0.25
0.5
0.75
1
1.25
72V
60V
48V
36V
Vin
0
1
2
3
4
5
0
0.5
1
1.5
2
2.5
3
72V
60V
48V
36V
Vin
IMPORTANT NOTICE
Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue
any product or service without notice, and advise customers to obtain the latest version of relevant information
to verify, before placing orders, that information being relied on is current and complete. All products are sold
subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those
pertaining to warranty, patent infringement, and limitation of liability.
TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in
accordance with TI's standard warranty. Testing and other quality control techniques are utilized to the extent
TI deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily
performed, except those mandated by government requirements.
CERTAIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF
DEATH, PERSONAL INJURY, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE ("CRITICAL
APPLICATIONS"). TI SEMICONDUCTOR PRODUCTS ARE NOT DESIGNED, AUTHORIZED, OR
WARRANTED TO BE SUITABLE FOR USE IN LIFE-SUPPORT DEVICES OR SYSTEMS OR OTHER
CRITICAL APPLICATIONS. INCLUSION OF TI PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO
BE FULLY AT THE CUSTOMER'S RISK.
In order to minimize risks associated with the customer's applications, adequate design and operating
safeguards must be provided by the customer to minimize inherent or procedural hazards.
TI assumes no liability for applications assistance or customer product design. TI does not warrant or represent
that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other
intellectual property right of TI covering or relating to any combination, machine, or process in which such
semiconductor products or services might be or are used. TI's publication of information regarding any third
party's products or services does not constitute TI's approval, warranty or endorsement thereof.
Copyright
1999, Texas Instruments Incorporated
PDF 
ZIP