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PT4403N Datasheet(PDF) 5 Page - Texas Instruments

Part # PT4403N
Description  75-W 48-V Input Isolated DC/DC Converter
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

PT4403N Datasheet(HTML) 5 Page - Texas Instruments

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For technical support and more information, see inside back cover or visit www.ti.com
Note A:
All data listed in the above graphs has been developed from actual products tested at 25°C. This data is considered typical data for the DC-DC Converter.
Note B:
SOA curves represent operating conditions at which internal components are at or below manufacturer’s maximum rated operating temperature.
PT4403—48V
75-W 48-V Input Isolated
DC/DC Converter
PT4403 Characterstic Data
PT4403 Specifications (Unless otherwise stated, Ta =25°C, Vin =48V, Vo =5.02V, Co =0µF, and Io =Iomax)
PT4403
Characteristic
Symbol
Conditions
Min
Typ
Max
Units
Output Current
Io
Over Vin range
0
15
A
Input Voltage Range
Vin
Over Io Range
36
48
75
V
Set Point Voltage Tolerance
Vo tol
±0.6 (1)
—%Vo
Temperature Variation
Regtemp
–40° >Ta > +85°C
±0.8
%Vo
Line Regulation
Regline
Over Vin range
±2
mV
Load Regulation
Regload
Over Io range
±1
mV
Total Output Voltage Variation
∆Votot
Includes set-point, line, load,
±1.6
±3
%Vo
–40° >Ta > +85°C
Efficiency
η
—91
%
Vo Ripple (pk-pk)
Vr
20MHz bandwidth
70
mVpp
Transient Response
ttr
1A/µs load step, 50% to 100% Iomax
75
µs
∆Vtr
Vo over/undershoot
±2
%Vo
Over-Current Threshold
ITRIP
Shutdown, followed by auto-recovery
23
A
Output Over-Voltage Protection
OVP
Output shutdown and latch off
125
%Vo
Switching Frequency
ƒo
Over Vin range
300
kHz
Under-Voltage Lockout
UVLO
32
V
Remote On/Off Input
Referenced to –Vin
Input High Voltage
VIH
4.5
Open (2)
V
Input Low Voltage
VIL
–0.2
+0.8
Input Low Current
IIL
–0.3
mA
Standby Input Current
Iin standby
pins 1 & 2 connected
2
mA
Internal Input Capacitance
Cin
1.4
µF
External Output Capacitance
Cout
Between +Vo and –Vo
0
5,000
µF
Isolation Voltage
Input-output & input-case
1500
Vdc
Capacitance
Input-output
1200
pF
Resistance
Input-output
10
M
Notes:
(1) If (–)Remote Sense is not used, pin 12 must be connected to pin 13 for optimum output voltage accuracy.
(2) The Remote On/Off input has an internal pull-up. If it is left open-circuit the module will operate when input power is applied. A discrete MOSFET or
bipoloar transistor is recommended to control this input. The open-circuit voltage is typically 5V. See application notes for interface considerations.
Efficiency vs Load Current; Vo =5V (See Note A)
Output Ripple vs Load Current; Vo =5V (See Note A)
Power Dissipation vs Load Current; Vo =5V (See Note A)
Safe Operating Area; Vin =48V (See Note B)
50
60
70
80
90
100
036
9
12
15
Iout (A)
36.0V
48.0V
60.0V
75.0V
VIN
0
25
50
75
100
125
150
036
9
12
15
Iout (A)
75.0V
60.0V
48.0V
36.0V
VIN
0
2
4
6
8
10
0369
12
15
Iout (A)
75.0V
60.0V
48.0V
36.0V
VIN
20
30
40
50
60
70
80
90
0369
12
15
Iout (A)
200LFM
100LFM
Nat conv
Airflow


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