Texas Instruments PT4201A, PT4201C, PT4202A, PT4202C, PT4203A Datasheet
...
For assistance or to order, call (800) 531-5782
PT42/4300
Series
3-7 WATT 48V INPUT
ISOLATED DC-DC CONVERTER
Application Notes
Mechanical Outline
Product Selector Guide
Revised 5/15/98
• Wide Input Voltage Range:
38V to 72V
• 83% Efficiency
• 1,500 VDC Isolation
• 18 Pin DIP Package
• 3.5 Million Hour MTBF
• Meets FCC/EN55022 Class A
• UL and CSA approved
DC to DC converters advance the state-of-theart for board-mounted converters by employing
high switching frequencies, thick-film technology
and a high degree of silicon integration. The high
reliability and very low package height makes
these converters ideal for Telecom and Datacom
applications requiring input-to-output isolation
with board spacing down to 0.6”.
• No External Components Required
• Adjustable Output Voltage
molded through-hole or SMD-DIP package
with single output voltages of 2V, 3.3V, 5V, and
Power Trends’ PT4200 series of isolated
12V, dual outputs of ±5V, +5V/+3.3V, and ±12V.
Standard Application
1
+Vout1
-Vout
+Vout2 or NC
NC
Vadj
Specifications
CharacteristicsCharacteristics
Characteristics
CharacteristicsCharacteristics
(T(T
= 25°C unless noted)= 25°C unless noted)
(T
= 25°C unless noted)
(T(T
= 25°C unless noted)= 25°C unless noted)
aa
a
aa
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
Idling Voltage V
SymbolsSymbols
Symbols
SymbolsSymbols
o
cl
in standby
sc
ir
t
ir
in
o
o
ConditionsConditions
Conditions
ConditionsConditions
Over Vin range Vo = 2V, 3.3V 0 — 1.5 A
Vin = 48V Vo = 2V 2.0 — 3.3 A
Vin = 48V, Pin 11 = -V
Vin = 48V Vo = 2V — 2.8 — A
Vin = 48V @ max I
On start-up — 1.0 5.0 mSec
Over Io Range 38** 48 72 V
Over Io Range — ±4 — %Vo
Io = 0A Vo = 2V — 2.7 3.0 V
NOR
V
o
Vo = 12V 0 — 0.6 A
V
o
V
o
Vo = 12V 0.7 — 1.2 A
V
o
V
o
Vo = 12V — 1.2 — A
o
V
o
V
o
Vo = 12V — 14.3 17 V
Ripple Rejection RR Over Vin range @ 120 Hz — 60 — dB
Line Regulation Reg
Load Regulation Reg
Vo Ripple/Noise V
Transient Response t
n
tr
Efficiency η Vin=48V, Io=1.5A, Vo=2V — 73 — %
Switching Frequency ƒ
Operating Temperature T
o
a
Over Vin range @ max I
line
10% to 100% of Io max — ±3 — %V
load
Vin= 48V, Io=Io max — 30 70 mV
50% load change — 100 300 µSec
Vo over/undershoot — 3.0 5.0 %V
=48V, Io=1.5A, Vo=3.3V — 79 — %
V
in
=48V, Io=1.2A, Vo=5V — 80 — %
V
in
Vin=48V, Io=0.6A, Vo=12V — 83 — %
Over Vin and I
Vin = 48V @ max I
Free air convection, (40-60LFM)
o
o
Pin Temperature Tp @ Pin1 — — 95 °C
Storage Temperature T
s
Mechanical Shock — Per Mil-STD-202F, Method 213B,
Mechanical Vibration — Per Mil-STD-202F, Method 204D,
— -55 — +125 °C
6mS half-sine, mounted to a PCB
10-500Hz, mounted to a PCB
Weight — — — 20 — grams
Isolation — — 1500 — — VDC
Flammability — Materials meet UL 94V-0
** Minimum input voltage is adjustable - See application note.
18
PT42/4300
+Vin
17
-Vin
16
15
14
NC
13
12
11
RC
10
TOA
PT42PT42
/4300/4300
/4300
/4300/4300
SERIES SERIES
SERIES
SERIES SERIES
TypTyp
Typ
TypTyp
MaxMax
Max
MaxMax
PT42
PT42PT42
MinMin
Min
MinMin
2
3
4
5
6
7
8
9
= 5V 0 — 1.2 A
= 3.3V 1.7 — 3.3 A
= 5V 1.4 — 2.4 A
in
= 3.3V — 2.4 — A
= 5V — 1.9 — A
— 0.5 — mA
— 0.6 1.0 A
= 3.3V — 3.65 4.0 V
= 5V — 5.6 6.0 V
o
— ±0.5 — %V
— 485 — kHz
-40 — +85 °C
—50—G’s
—10—G’s
The PT4200 series is offered in a unique
Pin-Out Information
Pin Function
UnitsUnits
Units
UnitsUnits
1V
2V
3V
4 Do not connect
5 Do not connect
6 Do not connect
7 Do not connect
8* V
9*
10
11 Remote on/off
12 Do not connect
13 Do not connect
14 Do not connect
15 Do not connect
16 Do not connect
17 -V
18 +V
* Please note that when the Vout
adjust is not used, pin 8 must be
connected to pin 9.
1
out
return
out
out2 or N/C
adj
Nominal output
voltage resistor
Turn-on/off input
voltage adjust
in
in
Ordering Information
o
o
pp
o
Through-Hole
PT4201A = 2V/1.5A
PT4202A = 3.3V/1.5A
PT4203A = 5V/1.2A
PT4204A = 12V/0.6A
PT4301A = ±5V/1A
PT4302A = +5.2V/1A,
+3.3V/1A
PT4303A = ±12V/0.25A
Surface Mount
PT4201C = 2V/1.5A
PT4202C = 3.3V/1.5A
PT4203C = 5V/1.2A
PT4204C = 12V/0.6A
PT4301C = ±5V/1A
PT4302C = +5.2V/1A,
+3.3V/1A
PT4303C = ±12V/0.25A
(For dimensions and PC
board layout, see Package
Style 900.)
66
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
PT42/4300 Series
CHARACTERISTIC DATA
PT4202 3.3V (See Note 1)
Efficiency vs Output Current Efficiency vs Output Current Efficiency vs Output Current
100
90
80
70
Efficiency - %Ripple-(mV)PD-(Watts)
60
50
40
0 0.3 0.6 0.9 1.2 1.5
Iout-(Amps) Iout-(Amps) Iout-(Amps)
Ripple vs Output Current Ripple vs Output Current Ripple vs Output Current
25
20
15
10
5
0
0 0.3 0.6 0.9 1.2 1.5
Iout-(Amps) Iout-(Amps) Iout-(Amps)
Vin
Vin
36.0V
42.0V
48.0V
55.0V
60.0V
60.0V
55.0V
48.0V
42.0V
36.0V
PT4203 5.0V (See Note 1) PT4204 12.0V (See Note 1)
100
90
80
70
Efficiency - %
60
50
40
0 0.2 0.4 0.6 0.8 1 1.2
25
20
15
Ripple-(mV)
10
5
0
0 0. 2 0.4 0.6 0.8 1 1.2
Vin
36.0V
42.0V
48.0V
55.0V
60.0V
Vin
60.0V
55.0V
48.0V
42.0V
36.0V
100
90
80
70
Efficiency - %
60
50
40
0 0.1 0.2 0.3 0.4 0.5 0.6
25
20
15
Ripple-(mV)PD-(Watts)
10
5
0
0 0.1 0.2 0.3 0.4 0.5 0.6
DATA SHEETS
48V Bus Products
Vin
36.0V
42.0V
48.0V
55.0V
60.0V
Vin
60.0V
55.0V
48.0V
42.0V
36.0V
Power Dissipation vs Output Current Power Dissipation vs Output Current Power Dissipation vs Output Current
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0
0 0.3 0.6 0.9 1.2 1.5
Iout-(Amps) Iout-(Amps) Iout-(Amps)
Vin
60.0V
55.0V
48.0V
42.0V
36.0V
1.6
1.4
1.2
1
0.8
PD-(Watts)
0.6
0.4
0.2
0
0 0.2 0.4 0. 6 0.8 1 1.2
1.6
1.4
Vin
60.0V
55.0V
48.0V
42.0V
36.0V
1.2
1
0.8
0.6
0.4
0.2
0
0 0.1 0.2 0.3 0.4 0.5 0.6
Vin
60.0V
55.0V
48.0V
42.0V
36.0V
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.
Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://
www.powertrends.com
67
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