
Standard Application
-40°C to +85°C Operating
Temperature Range
1500 VDC Isolation
Power Density 15 Watts/in3
Wide Input Voltage Range
36V to 75V
82% Efficiency
Small Footprint
Fast Transient Response
UL Approved
Pin-Out Information
PT4100 Series
For assistance or to order, call (800) 531-5782
48V
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/in3, 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-Vin
3+Vin
4-Vout
5+Vout
6
Do not connect
Specifications
Characteristics
PT4100 SERIES
(T
a=25
°C unless noted)
Symbols
Conditions
Min
Typ
Max
Units
Output Current
Io
Over Vin range
Vo = 3.3V
0
—
4.0
A
Vo = 5V
0
—
3.0
A
Vo = 12V
0
—
1.25
A
Vo = 15V
0
—
1.0
A
Current Limit
Icl
Vin = 36V
Vo = 5V
—
4.00
—
A
Vo = 12V
—
1.75
—
A
Vo = 15V
—
1.4
—
A
On/Off Standby Current
Iin standby
Vin = 48V, Pin 1 = -Vin
—
7
10
mA
Short Circuit Current
Isc
Vin = 48V
Vo = 5V
—
5.5
—
A
Vo = 12V
—
3.5
—
A
Vo = 15V
—
2.0
—
A
Inrush Current
Iir
Vin = 48V @ max Io
—
0.6
1.0
A
tir
On start-up
—
1.0
5.0
mSec
Input Voltage Range
Vin
Io = 0.1 to max Io
36.0
48.0
75.0
V
Output Voltage Tolerance
Vo
Over Vin Range
TA= -40°C to +85°C
—
±1.0
±2.0
%Vo
Ripple Rejection
RR
Over Vin range @ 120 Hz
—
60
—
dB
Line Regulation
Regline
Over Vin range @ max Io
—
±0.2
±1.0
%Vo
Load Regulation
Regload
10% to 100% of Io max
—
±0.4
±1.0
%Vo
Vo Ripple/Noise
Vn
Vin=48V, Io=3.0A, Vo=5V
—
75
100
mVpp
Vin=48V, Io=1.25A, Vo=12V
—
120
150
mVpp
Vin=48V, Io=1.0A, Vo=15V
—
100
200
mVpp
Transient Response
ttr
50% load change
—
100
200
Sec
Vo over/undershoot
—
3.0
5.0
%Vo
Efficiency
η
Vin=48V, Io=3.0A, Vo=5V
—
80
—
%
Vin=48V, Io=1.25A, Vo=12V
—
81
—
%
Vin=48V, Io=1A, Vo=15V
—
82
—
%
Switching Frequency
o
Over Vin and Io,
Vo=5V
800
850
900
kHz
Vo=12V/15V
600
650
700
kHz
Recommended Operating
Ta
Vin = 48V @ max Io
-40
—
+85*
°C
Temperature Range
Free air convection, (40-60LFM)
200 LFM
PT4110
0
—
+70
°C
Thermal Resistance
θ
ja
Free Air Convection, (40-60LFM)
—
14
—
°C/W
Case Temperature
Tc
@ Thermal shutdown
—
100
°C
Storage Temperature
Ts
—
-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 -Vin
Off
Short or 0 to 0.8 VDC above -Vin
+Vout
-Vout
-Vin
+Vin
3
24
5
On/Off
1
PT4100
Revised 3/1/99