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參數(shù)資料
| 型號： | PT4494A |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 100-W 20-A Programmable Isolated DC/DC Converter |
| 中文描述： | 100鎢20 -一種可編程隔離式DC / DC轉(zhuǎn)換器 |
| 文件頁數(shù)： | 1/8頁 |
| 文件大小： | 172K |
| 代理商： | PT4494A |
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: 4.6V to 5.7V
-40° to +85°C Ambient
1500 VDC Isolation
90% Efficiency
On/Off Inhibit
Differential Remote Sense
40A Output with PT4494
SLTS106C
(Revised 6/21/2002)
Description
The PT4474 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
20A of output current over the program-
mable voltage range of 4.6V to 5.7V.
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
PT4474 may be operated with up to two
PT4494 compatible booster modules.
Each PT4494 adds an additional 20A 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
PT4474
+V
sns
+V
out
-V
out
-V
sns
7
8-13
14-19
20
25
22
24
23
VID1 - VID4
+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 150μF electrolytic capacitor
C
1
= Optional 33μF, 50V electrolytic capacitor
C
2
= Optional 1μF, 50V ceramic capacitor
Programming pins, VID1–VID4, are shown
configured for Vo =5.0V
For normal operation, pin 3 (Inhibit) must be
connected to –Vin.
Ordering Information
PT 4474
= 4.6 to 5.7 Volts
PT 4494
= 20-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
+V
in
–V
in
Inhibit
V
r
V
a
Do not connect
(+)Remote Sense
+V
out
+V
out
10 +V
out
11 +V
out
12 +V
out
13 +V
out
2
3
4
5
6
7
8
9
Pin
Function
14
–V
out
–V
out
–V
out
–V
out
–V
out
–V
out
(–)Remote Sense
Do not connect
VID1
15
16
17
18
19
20
21
22
23
24
25
26
VID2
VID3
VID4
DRV
PT4474—24V
100-W 20-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.
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| PT4494C | 100-W 20-A Programmable Isolated DC/DC Converter |
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| PT4474C | 100-W 20-A Programmable Isolated DC/DC Converter |
| PT4494N | 100-W 20-A Programmable Isolated DC/DC Converter |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PT4494C | 功能描述:BOOSTER(PT4474) 20A 24VIN HZ SMD RoHS:是 類別:電源 - 板載 >> 配件 系列:PT4470 標(biāo)準(zhǔn)包裝:1 系列:- 附件類型:測試板 適用于相關(guān)產(chǎn)品:- |
| PT4494N | 功能描述:BOOSTER(PT4474) 20A 24VIN VRT RoHS:是 類別:電源 - 板載 >> 配件 系列:PT4470 標(biāo)準(zhǔn)包裝:1 系列:- 附件類型:測試板 適用于相關(guān)產(chǎn)品:- |
| PT4495 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:100-W 30-A Programmable Isolated DC/DC Converter |
| PT4495A | 功能描述:CONVERTER 30A BOOSTER PT4472 HRZ RoHS:是 類別:電源 - 板載 >> 配件 系列:PT4470 標(biāo)準(zhǔn)包裝:1 系列:- 附件類型:測試板 適用于相關(guān)產(chǎn)品:- |
| PT4495C | 功能描述:CONVERTER 30A BOOSTER PT4472 SMD RoHS:是 類別:電源 - 板載 >> 配件 系列:PT4470 標(biāo)準(zhǔn)包裝:1 系列:- 附件類型:測試板 適用于相關(guān)產(chǎn)品:- |
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