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PT4661A Datasheet(PDF) 3 Page - Texas Instruments

Part # PT4661A
Description  30-A Dual Output Isolated DC/DC Converter
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

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For technical support and further information, visit http://power.ti.com
PT4660 Series
30-A Dual Output Isolated
DC/DC Converter
SLTS140C – MAY 2001 – REVISED OCTOBER 2003
Specifications (Unless otherwise stated, Ta =25 °C, Vin =48 V, & Io1=Io2=10 A)
PT4660 SERIES
Characteristics
Symbols
Conditions
Min
Typ
Max
Units
Output Current
Io1, Io2
Vo1
Vo1 ≤3.3 V
0
15
A
Vo1 =5.0 V
0
10
Vo2
All voltages
0
15
A
Io1+Io2
Total (both outputs)
Vo1 ≤3.3 V
0
30
A
Vo1 =5.0 V
0
25
Input Voltage Range
Vin
36
48
75
V
Set Point Voltage Tolerance
Votol
±1±2%Vo
Temperature Variation
∆Regtemp
–40 to +100 °C Case, Io1 =Io2 =0 A
±0.5
%Vo
Line Regulation
∆Regline
Over Vin range with Io1=Io2=5 A
±5
±10
mV
Load Regulation
∆Regload
1 A
≤Io1 ≤Io1max, Io2 =1 A
∆Vo1
±2
±10
mV
1 A
≤Io2 ≤Io1max, Io1 =1 A
∆Vo2
±2
±10
Cross Regulation
∆Regcross
1 A
≤Io2 ≤Io1max, Io1 =1 A
∆Vo1
±2
±10
mV
1 A
≤Io1 ≤Io1max, Io2 =1 A
∆Vo2
—±2
±5
Total Output Variation
∆Votol
Includes set-point, line load,
∆Vo1
—±2
±3
%Vo
–40 °C to +100 °C case
∆Vo2
—±2
±3
Efficiency
η
PT4661
88
PT4662
87
PT4663
86
PT4665
86
%
PT4666
85
PT4667
88
PT4668
86
Vo Ripple (pk-pk)
Vr
Io1=Io2=5 A, 20 MHz bandwidth
Vo =5 V
75
mVpp
Vo <5 V
50
Transient Response
ttr
1 A/µs load step from 50 % to 100 % Iomax
25
100
µSec
(either output)
6.0
%Vo
Current Limit
ILIM
Each output with other unloaded
15.5
18
A
Output Rise Time
ton
At turn-on to within 90 % of Vo
5
10
mSec
Output Over-Voltage Protection
OVP
Either output; shutdown and latch off
125 (1)
—%Vo
Output Voltage Adjustment
∆Voadj
Vo1, Vo2
±10
%Vo
Switching Frequency
fs
270
330
kHz
Under-Voltage-Lockout
UVLO
Rising
34
36
V
Falling
30
32
Internal Input Capacitance
Cin
—2
—µF
Enable Control Inputs
Referenced to –Vin
Input High Voltage
VIH
3.5
V
Input Low Voltage
VIL
0
0.8 (2)
Input Low Current
IIL
0.5
mA
Standby Current
Iin standby
Pins 2, 3, & 4 connected
3
5
mA
External Output Capacitance
Cout
Per each output
0
5,000
µF
Primary/Secondary Isolation
V iso
1500
V
C iso
1500
pF
R iso
10
——M
Temperature Sense
Vtemp
Output voltage at temperatures:-
–40 °C
0.1 (3)
V
100 °C
1.5 (3)
Operating Temperature Range
Ta
Over Vin range
–40
85 (4)
°C
Over-Temperature ProtectionOTP
Case temperature (auto restart)
100
°C
Solder Reflow Temperature
Treflow
Surface temperature of module pins or case
215 (5)
°C
Storage Temperature
Ts
–40
125
°C
Mechanical Shock
Per Mil-STD-883D, Method 2002.3
500
G’s
Mechanical Vibration
Per Mil-STD-883D, Method 2007.2, Suffix N
10 (6)
G’s
20–2,000 Hz
Suffixes A, C
20 (6)
Weight
90
grams
Flammability
Materials meet UL 94V-0
Notes: (1) This is a fixed parameter. Adjusting Vo1 or Vo2 higher will increase the module’s sensitivity to over-voltage detection. For more information, see the
application note on output voltage adjustment.
(2) The EN1 and EN2 control inputs (pins 3 & 4) have internal pull-ups and may be controlled with an open-collector (or open-drain) transistor. Both
inputs are diode protected and can be connected to +Vin. The maximum open-circuit voltage is 5.4 V.
(3) Voltage output at “TEMP” pin is defined by the equation:- VTEMP = 0.5 + 0.01·T, where T is in °C. See pin descriptions for more information.
(4) See SOA curves or consult the factory for the appropriate derating.
(5) During solder reflow of SMD package version do not elevate the module case, pins, or internal component temperatures above a peak of 215 °C. For
further guidance refer to the application note, “Reflow Soldering Requirements for Plug-in Power Surface Mount Products,” (SLTA051).
(6) The case pins on the through-holed package types (suffixes N & A) must be soldered. For more information see the applicable package outline drawing.


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