參數(shù)資料
型號(hào)： PT4470
廠商： Texas Instruments, Inc.
元件分類： DC/DC變換器
英文描述： 100W 24V Input Programmable DC-DC Converter Family
中文描述： 100W 24V 輸入可編程 DC-DC 轉(zhuǎn)換器系列
文件頁數(shù)： 1/7頁
文件大?。?/td> 154K
代理商： PT4470
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 +85°C Ambient
1500 VDC Isolation
89% Efficiency
On/Off Inhibit
Differential Remote Sense
60A Output with PT4495
SLTS094C
(Revised 6/21/2002)
Description
The PT4472 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 a foldback
output current limit, over-temperature
protection, and an inhibit on/off control.
A differential remote sense is also provided
to compensate for voltage drop between
the converter and load.
For additional output current, one
PT4472 may be operated with up to two
PT4495 compatible booster modules.
Each PT4495 adds an additional 30A of
output current capability.
Over-Current Protection
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
PT4472
+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
2
C
o
= Optional 330μF electrolytic capacitor
C
1
= Optional 33μF, 50V electrolytic capacitor
C
2
= Optional 1μF, 50V 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 4472
= 1.3 to 3.5 Volts
PT 4495
= 30-A Booster
PT Series Suffix
(PT1234
x
)
Case/Pin
Configuration
Vertical
Horizontal
SMD
Order
Suffix
N
A
C
Package
C ode *
(EKD)
(EKA)
(EKC)
* Previously known as package styles 1200,
1210, and 1215.
(Reference the applicable package code draw-
ing for the dimensions and PC board layout)
Pin-Out Information
Pin
Function
1
2
3
+V
in
–V
in
Inhibit
4
5
6
7
V
r
V
a
Do not 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
PT4472—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.
Shaded functions indicate those pins that are
referenced to primary-side potential.
相關(guān)PDF資料
PDF描述
PT4480 "30A 48V-Input Isolated DC/DC Converter Family
PT4474 100W 24V Input 5V Output Programmable DC-DC Converter
PT4474N 100-W 20-A Programmable Isolated DC/DC Converter
PT4494 100-W 20-A Programmable Isolated DC/DC Converter
PT4494A 100-W 20-A Programmable Isolated DC/DC Converter
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PT4471 制造商:TI 制造商全稱:Texas Instruments 功能描述:100-W 30-A Programmable Isolated DC/DC Converter
PT4471A 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 100W 24V In 30A Prog DC-DC Converter RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT
PT4471C 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 100W 24V In 30A Prog DC-DC Converter RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT
PT4471N 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 100W 24V In 30A Prog DC-DC Converter RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT
PT4472 制造商:TI 制造商全稱:Texas Instruments 功能描述:100-W 30-A Programmable Isolated DC/DC Converter
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