Texas Instruments PT3102A, PT3102C, PT3103A, PT3103C, PT3101A Datasheet
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For assistance or to order, call (800) 531-5782
PT3100 Series
48V
Product Selector Guide
15 WATT 48V TO 5V/12V/15V
ISOLATED DC-DC CONVERTER
Application Notes
Mechanical Outline
Revised 8/13/98
• Power Density 15 Watts/in
• Wide Input Voltage Range
36V to 75V
• 80% Efficiency
• 500 VDC Isolation
• Industry’s Smallest Footprint
• Fast Transient Response
• No External Components Required
3
Isolated 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 surface-mount
construction. They feature the industry’s
smallest footprint, a power density of
15 Watts/in
ciency. They are designed for Telecom,
Power Trends’ PT3101A (5V),
PT3102A (12V) and PT3103A (15V)
Industrial, Computer, Medical, and other
distributed power applications requiring
input-to-output isolation.
Specifications
Characteristics
(Ta=25°C unless noted) Symbols Conditions Min Typ Max Units
Output Current I
Current Limit I
On/Off Standby Current I
Short Circuit Current I
Inrush Current I
Input Voltage Range V
Output Voltage Tolerance ∆V
Ripple Rejection RR Over Vin range @ 120 Hz — 60 — dB
Line Regulation Reg
Load Regulation Reg
Vo Ripple/Noise V
Transient Response t
Efficiency η Vin=48V, Io=3.0A, Vo=5V — 79 — %
Switching Frequency ƒ
Recommended Operating T
Temperature Range Free air convection, (40-60LFM)
Thermal Resistance θ
Case Temperature T
Storage Temperature T
Mechanical Shock — Per Mil-STD-202F, Method 213B,
Mechanical Vibration — Per Mil-STD-202F, Method 204D,
Weight — — — 28 — grams
Isolation — — 500 — — V
Capacitance — — — 1100 — pF
Resistance — — 10 — — MΩ
Flammability — Materials meet UL 94V-0
Remote On/Off On Open or 2.5 to 7.0 VDC above -V
* See Thermal Derating Curves
o
cl
in standby
sc
ir
t
ir
in
n
tr
o
a
ja
c
s
Off Short or 0 to 0.8 VDC above -V
Over Vin range Vo = 5V 0 — 3.0 A
Vin = 36V Vo = 5V — 4.00 — A
Vin = 48V, Pin 1 = -V
Vin = 48V Vo = 5V — 5.5 — A
Vin = 48V @ max I
On start-up — 1.0 5.0 mSec
Io = 0.1 to max I
Over Vin Range
o
TA= -20°C to 70°C
Over Vin range @ max I
line
10% to 100% of Io max — ±0.4 ±1.0 %V
load
Vin=48V, Io=3.0A, Vo=5V — 75 100 mV
Vin=48V, Io=1.25A, Vo=12V — 120 150 mV
Vin=48V, Io=1.0A, Vo=15V — 100 200 mV
50% load change — 100 200 µSec
Vo over/undershoot — 3.0 5.0 %V
V
=48V, Io=1.25A, Vo=12V — 80 — %
in
Vin=48V, Io=1A, Vo=15V — 80 — %
Over Vin and Io, Vo=5V 800 850 900 kHz
Vo=12V/15V 600 650 700 kHz
Vin = 48V @ max I
Free Air Convection, (40-60LFM) — 16 — °C/W
@ Thermal shutdown — — 100 °C
— -40 — 110 °C
6mS, Half-sine, mounted to a PCB
10-500Hz, Soldered in a PCB
= 12V 0 — 1.25 A
V
o
Vo = 15V 0 — 1.0 A
= 12V — 1.75 — A
V
o
Vo = 15V — 1.4 — A
in
= 12V — 3.5 — A
V
o
Vo = 15V — 2.0 — A
o
o
o
o
PT3100 SERIES
—7 10mA
— 0.6 1.0 A
36.0 48.0 75.0 V
— ±1.0 ±2.0 %V
— ±0.2 ±1.0 %V
-20 — +70* °C
—50—G’s
—10—G’s
in
in
3
, and operate at 80% effi-
Standard Application
On/Off
+Vin
Pin-Out Information
Pin Function
1
o
o
o
pp
pp
pp
o
2-V
3+V
4-V
5+V
6 Do not connect
Ordering Information
Through-Hole
PT3101A = 5 Volts
PT3102A = 12 Volts
PT3103A = 15 Volts
Surface Mount
PT3101C = 5 Volts
PT3102C = 12 Volts
PT3103C = 15 Volts
(For dimensions and PC
board layout, see Package
Style 700.)
1
+Vout
PT3100
in
in
out
out
5
-Vout-Vin
3
24
Remote
ON/OFF
68
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
˝
˝
˝
PT3100 Series
CHARACTERISTIC DATA
PT3101, 5.0 VDC (See Note 1)
Efficiency vs Output Current Efficiency vs Output Current Efficiency vs Output Current
100
90
80
70
Efficiency - %Ripple-(mV)Iout-(Amps)PD-(Watts)
60
50
40
00.511.522.53
Iout-(Amps)
Ripple vs Output Current Ripple vs Output Current Ripple vs Output Current
120
100
80
60
40
20
0
00.511.522.53
Iout-(Amps) Iout-(Amps)
Vin
36V
48V
60V
72V
Vin
72V
60V
48V
36V
PT3102, 12.0 VDC (See Note 1) PT3103, 15.0 VDC (See Note 1)
100
90
80
70
Efficiency - %
60
50
40
0.25 0.5 0.75 1 1.25
Iout-(Amps) Iout-(Amps)
120
100
80
60
Ripple-(mV)
40
20
0
0.25 0.5 0.75 1 1.25
Iout-(Amps)
Vin
36V
48V
60V
72V
Vin
72V
60V
48V
36V
100
90
80
70
Efficiency - %
60
50
40
0.25 0.5 0.75 1
120
100
80
60
Ripple-(mV)Iout-(Amps)
40
20
0
0.25 0.5 0.75 1
48V
DATA SHEETS
48V Bus Products
Vin
36V
48V
60V
72V
Vin
72V
60V
48V
36V
Thermal Derating (Ta) (See Note 2) Thermal Derating (Ta) (See Note 2) Thermal Derating (Ta) (See Note 2)
3
2.5
2
1.5
1
0.5
0
36 40 44 48 52 56 60 64 68 72
Vin-(Volts) Vin-(Volts)Vin-(Volts)
60°
70°
1.25
1
0.75
0.5
Iout-(Amps)
0.25
0
36 40 44 48 52 56 60 64 68 72
60°
70°
1
0.75
0.5
0.25
0
36 40 44 48 52 56 60 64 68 72
Power Dissipation vs Output Current Power Dissipation vs Output Current Power Dissipation vs Output Current
5
4
3
2
1
0
00.511.522.53
Iout-(Amps)
5
Vin
72V
60V
48V
36V
4
3
2
PD-(Watts)
1
0
0.25 0.5 0.75 1 1.25
Vin
72V
60V
48V
36V
Iout-(Amps)
5
4
3
2
PD-(Watts)
1
0
0.25 0.5 0.75 1
Iout-(Amps)
60°
70°
Vin
72V
60V
48V
36V
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 Converter.
Note 2: Thermal derating graphs are developed in free air convection cooling of 40-60 LFM.
Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://
69
www.powertrends.com
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