參數(shù)資料
型號(hào)： PT4495C
廠商： Texas Instruments, Inc.
英文描述： 100-W 30-A Programmable Isolated DC/DC Converter
中文描述： 100鎢30 -一種可編程隔離式DC / DC轉(zhuǎn)換器
文件頁(yè)數(shù)： 1/4頁(yè)
文件大?。?/td> 116K
代理商： PT4495C
For technical support and more information, see inside back cover or visit www.ti.com
Standard Application
Features
18V to 36V Input Voltage Range
Programmable Output Voltage
Range: 1.3V to 3.5V
-40° to +100°C Operating Temp
1500 VDC Isolation
89% Efficiency
Remote On/Off
Differential Remote Sense
60A Output with PT4495
SLTS144A
(Revised 5/28/2002)
Description
The PT4452 Excalibur DC/DC
converter module combines state-of-the-
art power conversion technology with
un-paralleled flexibility. Incorporating
high efficiency and ultra-fast transient
response, these modules provide up to
30A of output current over the program-
mable voltage range of 1.3V to 3.5V.
This represents a full 100W output at
3.3V.
The modules include a number of
inbuilt features to facilitate system
integration. These include output over-
current shutdown (with auto reset),
over-temperature protection, and an
inhibit on/off control. A differential
remote sense is also provided to com-
pensate for voltage drop between the
converter and load.
For additional output current, one
PT4452 may be operated with up to two
PT4495 compatible booster modules.
Each PT4495 adds an additional 30A of
output current capability.
Over-Current Protection
(Shutdown with Auto-Reset)
Over-Temperature Protection
Over-Voltage Protection
Space-Saving Package
Solderable Copper Case
Safety Approvals:
UL 60950
CSA 22.2 950
VDE EN60950 Pending
L
O
A
D
PT4452
+V
sns
+V
out
-V
out
-V
sns
7
8-13
14-19
20
25
22
24
23
VID0 - VID4
21
+V
in
–V
in
1
2
3
Inhibit
C
1
+
PROGRAMMING PINS
+V
OUT
+V
IN
–V
IN
–V
OUT
C
o
+
C
o
= Optional 330μF electrolytic capacitor
C
1
= Optional 33μF, 100V electrolytic capacitor
C
2
= Optional 1μF, 100V ceramic capacitor
Programming pins, VID0–VID4, are shown
configured for Vo =3.3V
For normal operation, pin 3 (Inhibit) must be
connected to –Vin.
Ordering Information
PT 4452
= 1.3 to 3.5 Volts
PT 4495
= 30-A Booster
PT Series Suffix
(PT1234
x
)
Case/Pin
Configuration
Vertical
Horizontal
SMD
(Reference the applicable package code draw-
ing for the dimensions and PC board layout)
Order
Suffix
N
A
C
Package
C ode
(EKD)
(EKA)
(EKC)
Pin-Out Information
Pin
Function
1
2
3
+V
in
–V
in
Inhibit
4
5
6
7
V
r
V
a
No Connect
(+)Remote Sense
8
9
10 +V
out
11 +V
out
12 +V
out
13 +V
out
+V
out
+V
out
Pin
Function
14
15
16
–V
out
–V
out
–V
out
–V
out
–V
out
–V
out
(–)Remote Sense
17
18
19
20
21
22
23
24
VID0
VID1
VID2
VID3
25
26
VID4
DRV
PT4452—24V
100-W 30-A Programmable
Isolated DC/DC Converter
Pins 4, 5, & 26 are used for booster applications. For
stand-alone operation, leave open circuit.
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