- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄370024 > PT4842 12V/3.3V/1.8V 48V-Input 62-Watt Triple-Output DC/DC Converter PDF資料下載
參數(shù)資料
| 型號(hào)： | PT4842 |
| 英文描述： | 12V/3.3V/1.8V 48V-Input 62-Watt Triple-Output DC/DC Converter |
| 中文描述： | 12V/3.3V/1.8V 48V的輸入62瓦三輸出DC / DC變換器 |
| 文件頁數(shù)： | 5/14頁 |
| 文件大小： | 216K |
| 代理商： | PT4842 |
For technical support and more information, see inside back cover or visit www.ti.com
PT4842
—
48V
65-W Triple Output Isolated DC/DC
Converter for DSL Applications
PT4842 Specifications
(Unless otherwise stated, the operating conditions are:- T
a
=25°C, V
in
=48V, and Io
n
=0.5Io
n
max)
PT4842
Typ
Characteristics
Symbols
Conditions
Min
Max
Units
Output Power
P
o
Each output:
Vo
1
( 12V)
Vo
2
(3.3V)
Vo
3
(1.8V)
—
—
—
—
0
0
0
—
—
—
—
36
—
—
—
11.64
3.2
1.74
±10
—
—
—
—
—
—
—
—
—
450
0
2.4
—
—
—
—
—
—
—
—
4
16
200
—
34
32
2
12.0
3.3
1.8
—
0.1
0.2
—
45
20
20
30
5
84
500
—
—
3
9
—
1500
—
0.1
1.5
—
—
—
32.4
20
12.6
62
2.7
6
7
11
—
—
—
75
—
—
—
12.36
3.4
1.86
—
1.0
1.0
1.0
100
50
50
—
—
—
550
0.8
75
5
15
—
—
—
—
—
330
5,000
10,000
(1)
(1)
(1)
W
Total (all three outputs)
(1)
W
A
A
Output Current
I
o
Io
1
( 12V)
Io
2
(3.3V)
Io
3
(1.8V)
(2)
(2)
Maximum (Io
2
+ Io
3
)
(2)
A
Current Limit Threshold
I
LIM
Io
1
A
Io
2
+ Io
3
Over Current Shutdown Delay
(3)
Input Voltage Range
Under Voltage Lockout
t
sd
V
in
V
on
V
off
C
int
V
o
Time period prior to latched shutdown
ms
V
V
V
in
increasing
V
in
decreasing
Internal Input Capacitance
Output Voltage
μF
Vo
1
( 12V)
Vo
2
(3.3V)
Vo
3
(1.5V)
Vo
2
/ Vo
3
V
Output Adjust Range
Line Regulation
Load Regulation
Cross Regulation
V
Ripple/Noise
(0 to 20MHz bandwidth)
V
o
adj
Reg
line
Reg
load
Reg
cross
V
n
%V
o
%V
o
%V
o
%V
o
All outputs, Over V
in
range
All outputs, 0
≤
I
o
≤
I
o
max
Any one output vs. other outputs
C
out
=10μF tantalum capacitor
(4)
Vo
1
( 12V)
Vo
2
(3.3V)
Vo
3
(1.5V)
mV
pp
Transient Response
(5)
t
tr
V
os
η
s
On
Off
25% load step
V
o
over/undershoot
P
o
=P
o
max
Over V
in
and I
o
ranges
Referenced to –V
in
μSec
%V
o
%
kHz
Efficiency
Switching Frequency
On/Off Control
Logic ‘0’
Logic ‘1’
(6)
V
Open cct. voltage
I
stby
V
iso
C
iso
R
iso
V
temp
Input current in ‘Off’ state
—
1500
—
10
—
—
0
0
0
mA
V
pF
M
Primary/Secondary Isolation
Temperature Sense
(7)
Output voltage at temperatures:-
–40°C
100°C
C
o
1
C
o
2
C
o
3
V
External Output Capacitance
(8)
C
out
μF
Notes:
(1) The sum total power delivered from all three regulated outputs, Vo
, Vo
2
, and Vo
3
, cannot exceed 62 watts.
(2) The sum-total current from outputs Vo
, and Vo
cannot exceed 11ADC.
(3) After latched shutdown, the module may be reset by cycling the input power.
(4) The ripple and noise is measured with a 10μF tantalum capacitor across each output.
(5) The transient response is measured with a 25% load step from I
o
=0.5I
o
max, and di/dt =0.2A/μs.
(6) Pins 3 & 4 are diode protected and can be connected to +V
.
(7) Voltage output at “TEMP” pin is defined by the equation:- V
TEMP
= 0.5 + 0.01·T, where T is the sensed temperature in degrees centigrade. See pin
descriptions for more information.
(8) Ultra-low ESR capacitors, such as organic or polymer aluminum electrolytic types, may cause instability. For more information, refer to the application
note regarding capacitor selection.
SLTS142C - DECEMBER 2000 -REVISED SEPTEMBER 2002
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PT4842A | 55V Single N-Channel HEXFET Power MOSFET in a D2-Pak package; Similar to IRF1405S with Lead Free Packaging |
| PT4842C | DC to DC Converter |
| PT4842N | DC to DC Converter |
| PT5541 | A 25V Single N-Channel HEXFET Power MOSFET in a DirectFET SQ package rated at 59 amperes optimized with low on resistance for applications such as active OR'ing. Shipped in Tape and Reel only. Part is not available in bulk, TR is implied in part number.; A IRF6622 with Standard Tape and Reel Quantity of 4800 |
| PT5542 | A 25V Single N-Channel HEXFET Power MOSFET in a DirectFET SQ package rated at 59 amperes optimized with low on resistance for applications such as active OR'ing. Shipped in Tape and Reel only. Part is not available in bulk, TR is implied in part number.; Similar to IRF6622 qualified for use with lead free solder shipped in tape and reel 4800 pieces |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PT4842A | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 12/3.3/1.8V 48V-Inp 62W 3-Out DC-DC 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 |
| PT4842C | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 12/3.3/1.8V 48V-Inp 62W 3-Out DC-DC 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 |
| PT4842N | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 12/3.3/1.8V 48V-Inp 62W 3-Out DC-DC 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 |
| PT4850 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:25-A Triple Output Isolated DC/DC Converter For Logic Applications |
| PT4850F | 制造商:SHARP 制造商全稱:Sharp Electrionic Components 功能描述:Thin Type Phototransistor |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。