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PT4682N Datasheet

  • PT4682N

  • 20-A 24-V Input Dual Output Isolated DC/DC Converter

  • 288.71KB

  • 16頁(yè)

  • TI

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PT4680 Series
20-A 24-V Input Dual Output
Isolated DC/DC Converter
SLTS141A
(Revised 1/28/2002)
Features
鈥?/div>
Dual Outputs
(Independently Regulated)
鈥?/div>
Power-up/Down Sequencing
鈥?/div>
Input Voltage Range:
18V to 36V
鈥?/div>
1500 VDC Isolation
鈥?/div>
Temp Range: 鈥?0擄 to 100擄C
鈥?/div>
High Efficiency: 88%
鈥?/div>
Fixed Frequency Operation
鈥?/div>
Over-Current Protection
(Both Outputs)
鈥?/div>
Dual Logic On/Off Control
鈥?/div>
Over-Temperature Shutdown
鈥?/div>
Over-Voltage Protection
(Coordinated Shutdown)
鈥?/div>
Under-Voltage Lockout
鈥?/div>
Input Differential EMI Filter
鈥?/div>
Solderable Copper Case
鈥?/div>
Safety Approvals (Pending):
UL 60950
CSA 22.2 60950
Description
The PT4680 Excalibur鈩?Series
is a dual-output isolated DC/DC
converter that combine state-of-the-
art power conversion technology with
unparalleled flexibility. Operating
from a (鈥?4V) industry standard input
bus, the PT4680 series provides up to
20 ADC of output current from two
independently regulated voltages
(each output 15 ADC max).
The PT4680 series is characterized
with high efficiencies and ultra-fast
transient response, and incorporates
many features to facilitate system
integration. These include a flexible
鈥淥n/Off鈥?enable control, output
current limit, over-temperature pro-
tection, and an input under-voltage
lock-out. In addition, both output
voltages are designed to meet the
power-up/power -down sequencing
requirements of popular DSP ICs.
The PT4680 series is housed in
space-saving solderable copper case.
The package does not require a
heatsink and is available in both
vertical and horizontal configura-
tions, including surface mount. The
鈥楴鈥?configuration occupies less than 2
in虜 of PCB area.
Ordering Information
Pt. No.
PT4681o
PT4682o
PT4683o
PT4685o
PT4686o
PT4687o
=
=
=
=
=
=
Vo
1
/Vo
2
5.0/3.3 Volts
3.3/2.5 Volts
3.3/1.8 Volts
3.3/1.5 Volts
2.5/1.8 Volts
5.0/1.8 Volts
PT Series Suffix
(PT1234
x
)
Case/Pin
Configuration
Vertical
Horizontal
SMD
Order
Suffix
Package
Code
(EKD)
(EKA)
(EKC)
N
A
C
(Reference the applicable package code draw-
ing for the dimensions and PC board layout)
Typical Application
V
1
Adjust
V
2
Adjust
20
Vo
2
adj
13
Vo
1
adj
Vo
1
9鈥?2
+ V
IN
Vo
1
Vo
2
1
+Vin
Vo
2
21鈥?4
PT4680
3
4
EN 1*
EN 2
鈥揤in
COM
14鈥?9
L
O
A
D
L
O
A
D
鈥?V
IN
2
COM
* Inverted logic
For technical support and more information, see inside back cover or visit www.ti.com

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