TI PT4301A

PT42/4300 Series
3-7 Watt 48V-Input
Isolated DC/DC Converter
SLTS023B
(Revised 1/3/2002)
•
•
•
•
•
•
•
•
•
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
No External Components Required
Adjustable Output Voltage
The PT4200 series of isolated DC/DC
converters advance the state-of-the-art 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”.
The PT4200 series is offered in a unique
molded through-hole or SMD-DIP package
with single output voltages of 2V, 3.3V, 5V,
and 12V, dual outputs of ±5V, +5V/+3.3V, and
±12V.
Pin-Out Information
Package (Top View)
+Vout1
-Vout
+Vout2 or NC
NC
Vadj
NOR
Specifications
Characteristics
(Ta = 25°C unless noted)
Output Current
Current Limit
On/Off Standby Current
Short Circuit Current
1
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
10
PT42/4300
Pin
+Vin
-Vin
NC
RC
TOA
PT42/4300 SERIES
Symbols
Io
Icl
Conditions
Over Vin range
Vin = 48V
Min
Typ
Max
Units
Function
1
Vout1
2
Vout return
3
Vout2 or N/C
4
Do not connect
5
Do not connect
6
Do not connect
7
Do not connect
Vo = 2V, 3.3V
Vo = 5V
Vo = 12V
0
0
0
—
—
—
1.5
1.2
0.6
A
A
A
8*
9*
Nominal output
voltage resistor
Vo = 2V
Vo = 3.3V
Vo = 5V
Vo = 12V
2.0
1.7
1.4
0.7
—
—
—
—
3.3
3.3
2.4
1.2
A
A
A
A
10
Turn-on/off input
voltage adjust
11
Remote on/off
12
Do not connect
13
Do not connect
14
Do not connect
15
Do not connect
Do not connect
Iin standby
Vin = 48V, Pin 11 = -Vin
Isc
Vin = 48V
Vo = 2V
Vo = 3.3V
Vo = 5V
Vo = 12V
—
0.5
—
—
—
—
2.8
2.4
1.9
1.2
—
—
—
—
—
mA
A
A
A
A
Vadj
0.6
1.0
1.0
5.0
A
mSec
16
17
-Vin
48
72
V
18
+Vin
—
±4
—
%Vo
—
—
—
—
2.7
3.65
5.6
14.3
3.0
4.0
6.0
17
V
V
V
V
Over Vin range @ 120 Hz
—
60
—
dB
Regline
Over Vin range @ max Io
—
±0.5
—
%Vo
Load Regulation
Regload
10% to 100% of Io max
—
±3
—
%Vo
Vo Ripple/Noise
Vn
Vin= 48V, Io=Io max
—
30
70
mVpp
Transient Response
ttr
50% load change
Vo over/undershoot
—
—
100
3.0
300
5.0
µSec
%Vo
Efficiency
η
Vin=48V, Io=1.5A,
Vin=48V, Io=1.5A,
Vin=48V, Io=1.2A,
Vin=48V, Io=0.6A,
—
—
—
—
73
79
80
83
—
—
—
—
%
%
%
%
Switching Frequency
ƒo
Over Vin and Io
—
485
—
kHz
Operating Temperature
Ta
Vin = 48V @ max Io
Free air convection, (40-60LFM)
-40
—
+85
°C
Inrush Current
Iir
tir
Vin = 48V @ max Io
On start-up
—
—
Input Voltage Range
Vin
Over Io Range
38
Output Voltage Tolerance
∆Vo
Over Io Range
Idling Voltage
Vo
Io = 0A
Ripple Rejection
RR
Line Regulation
Vo = 2V
Vo = 3.3V
Vo = 5V
Vo = 12V
Vo=2V
Vo=3.3V
Vo=5V
Vo=12V
(1)
Pin Temperature
Tp
@ Pin1
—
—
95
°C
Storage Temperature
Ts
—
-55
—
+125
°C
Mechanical Shock
—
Per Mil-STD-202F, Method 213B,
6mS half-sine, mounted to a PCB
—
50
—
G’s
Mechanical Vibration
—
Per Mil-STD-202F, Method 204D,
10-500Hz, mounted to a PCB
—
10
—
G’s
Weight
—
—
—
20
—
grams
Isolation
—
—
1500
—
—
VDC
Flammability
—
Materials meet UL 94V-0
Notes: (1) The minimum input voltage is adjustable. See the specific application note on the PT4200/4205/4300 Series.
For technical support and more information, see inside back cover or visit www.ti.com
* Please note that when the Vout
adjust is not used, pin 8 must be
connected to pin 9.
Ordering Information
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.)
Typical Characteristics
PT42/4300 Series
3-7 Watt 48V-Input
Isolated DC/DC Converter
PT4202 3.3V
PT4203 5.0V
(See Note A)
Efficiency vs Output Current
Efficiency vs Output Current
36.0V
42.0V
48.0V
55.0V
70
60.0V
90
Vin
80
36.0V
42.0V
48.0V
55.0V
60.0V
70
60
60
50
50
0
0.3
0.6
0.9
1.2
Ripple vs Output Current
0.4
0.6
0.8
1
60.0V
0
0.1
0.2
15
10
5
20
Vin
60.0V
55.0V
48.0V
42.0V
36.0V
15
10
1.5
Vin
60.0V
55.0V
48.0V
42.0V
36.0V
15
10
5
0
0
0.2
0.4
Iout-(Amps)
0.6
0.8
1
0
1.2
0. 1
0. 2
Iout-(Amps)
Power Dissipation vs Output Current
Vin
60.0V
55.0V
48.0V
42.0V
36.0V
1
0.8
0.6
1.6
1.4
1.4
1.2
Vin
1
60.0V
55.0V
48.0V
42.0V
36.0V
0.8
0.6
0.4
0.4
0.2
0. 4
0. 5
0. 6
Power Dissipation vs Output Current
1.6
PD-(Watts)
1.2
PD-(Watts)
1.4
0. 3
Iout-(Amps)
Power Dissipation vs Output Current
1.6
0.6
20
0
1.2
0.5
Ripple vs Output Current
5
0
0.4
25
Ripple-(mV)
60.0V
55.0V
48.0V
42.0V
36.0V
Ripple-(mV)
Vin
0.3
Iout-(Amps)
Ripple vs Output Current
20
0.9
55.0V
1.2
25
0.6
48.0V
Iout-(Amps)
25
0.3
36.0V
42.0V
70
40
0.2
Iout-(Amps)
0
Vin
80
50
0
1.5
90
60
40
40
Ripple-(mV)
Efficiency vs Output Current
Efficiency - %
Vin
80
Efficiency - %
Efficiency - %
90
(See Note A)
100
100
100
PD-(Watts)
PT4204 12.0V
(See Note A)
1.2
Vin
60.0V
55.0V
48.0V
42.0V
36.0V
1
0.8
0.6
0.4
0.2
0.2
0
0
0.3
0.6
0.9
1.2
1.5
0
0
0
Iout-(Amps)
0.2
0.4
0.6
0.8
Iout-(Amps)
1
1.2
0
0.1
0.2
0.3
0.4
0.5
Iout-(Amps)
Note A: 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.
For technical support and more information, see inside back cover or visit www.ti.com
0.6
Package Style 900
Suffix A, C
(Revised 6/30/2000)
PACKAGE INFORMATION AND DIMENSIONS
For technical support and more information, see inside back cover or visit www.ti.com
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