參數(shù)資料
型號(hào)： PT4801
英文描述： 150V Single N-Channel HEXFET Power MOSFET in a D-Pak package; A IRFR13N15D with Tape and Reel Packaging
中文描述： 25瓦三路輸出48V的輸入隔離DC / DC轉(zhuǎn)換器的DSL
文件頁(yè)數(shù)： 2/8頁(yè)
文件大?。?/td> 159K
代理商： PT4801
For technical support and more information, see inside back cover or visit www.ti.com
PT4801
—
48V
25-W Triple Output Isolated DC/DC
Converter for DSL Applications
Electrical Specifications
(Unless otherwise stated, T
a
=25°C, V
in
=48V, C
in
=0μF, C
out
=0μF, and I
o
=I
o
typ)
PT4801 SERIES
Typ
Characteristics
Symbols
Conditions
Min
Max
Units
Output Power
P
o
Each output:
Vo
1
( 15V)
Vo
2
(3.3V)
Vo
3
(1.5V)
—
—
—
—
0
0
0
0
0
—
36
—
15.0
3.25
1.45
—
—
—
15.0
3.2
1.4
—
—
—
—
—
—
—
—
—
3.135
1.425
550
—
—
15
6.6
2.25
—
1.0
2.0
1.5
—
—
—
—
—
—
3.3
1.5
±0.5
0.5
0.5
—
3.3
1.5
78
81
75
33
30
300
3
100
100
—
—
650
34
33
18.75
(1)
9.9
3.0
25
1.25
3.0
2.0
2.0
1.5
6.0
75
80
15.75
3.35
1.55
—
1.0
1.0
15.75
3.4
1.6
—
—
150
50
50
—
5
150
150
3.465
1.5
750
—
—
(1)
(1)
W
All three outputs:
(1)
W
A
Output Current
I
o
Vo
1
( 15V)
Vo
2
(3.3V)
Vo
3
(1.5V)
Vo
2
(3.3V)
Vo
3
(1.5V)
(Io
1
>0.25A)
(2)
(2)
A
(Io
1
≤
0.25A)
(2)
(2)
A
Maximum (Io
1
+ Io
2
+ Io
3
)
Continuous
Surge (1 minute)
(3)
A
V
V
Input Voltage Range
V
in
Set-point Voltage Tolerance
V
o
tol
Vo
1
Vo
2
Vo
3
V
Temperature Variation
Line Regulation
Load Regulation
Total Output Voltage Variation
Reg
temp
Reg
line
Reg
load
V
o
tot
–40°
≤
T
a
≤
+85°C, I
o
=I
o
min
All outputs, Over V
in
range, I
o
=I
o
typ
All outputs, I
o
=10% to 100%I
o
max
Includes set-point, line load,
–40°C
≤
T
a
≤
+85°C
%V
o
%V
o
%V
o
Vo
1
Vo
2
Vo
3
V
Efficiency
η
Io
1
=0.5A, Io
2
=1.0A, Io
3
=1.0A
Io
1
=1.0A, Io
2
=3.0A, Io
3
=2.0A
%
V
o
Ripple (pk-pk)
V
r
20–20Mz bandwidth, I
o
=I
o
typ
Vo
1
Vo
2
Vo
3
mV
pp
Transient Response
t
tr
V
os
25% load step from I
o
≥
0.5I
o
typ
V
o
over/undershoot
μSec
%V
o
Vo
1
Vo
2
Vo
3
Vo2
Vo3
mVpp
Output Voltage Adjust
V
o
adj
V
(4)
Switching Frequency
Under-Voltage Lockout
s
UVLO
Over V
in
and I
o
ranges
V
in
increasing
V
in
decreasing
Referenced to –V
in
(pin 1)
kHz
V
Remote On/Off (Pin x)
Input High Voltage
Input Low Voltage
Input Low Current
Standby Input Current
Internal Input Capacitance
External Output Capacitance
V
IH
V
IL
I
IL
I
in
standby
C
in
Co
1
,
Co
2
, Co
3
2.5
–0.2
—
—
—
0
0
1500
—
10
–40
—
—
–10
8
0.76
—
—
—
3000
—
—
15
(5)
+0.8
—
16
—
330
(6)
330
(6)
—
—
—
+85
(7)
+100
V
μA
mA
μF
pins 1 & 2 connected
Vo
1
μF
Vo
2
& Vo
3
(each)
Isolation Voltage
Capacitance
Resistance
Operating Temperature Range
Case Temperature
Over Temperature Protection
Storage Temperature
Mechanical Shock
Mil-STD-883D,
Mechanical Vibration
Mil-STD-883D
Weight
Flammability
Notes:
(1) The sum-total power delivered from all three output, Vo
, Vo
, and Vo
cannot exceed 25 watts.
(2) When the load current from Vo
is less than 0.25A, the maximum current available from Vo
2
, and Vo
3
is reduced to 2A and 1.5A respectively.
(3) The sum-total current from all three outputs Vo
, Vo
, and Vo
cannot exceed 6Adc.
(4) Vo
cannot be adjusted higher than the nominal output voltage. Consult the applicable application note for information on output voltage adjusment.
(5) The Remote On/Off input has an internal pull-up. If left open circuit the PT4801 will operate when input power is applied. A low-leakage (<100nA).
MOSFET is recommended to control this input. The open-circuit voltage is less than 10V See application notes for interface considerations.
(6) External output capacitance is not required for proper operation. Up to 100μF of external capacitance may be added to each output to improve the response
to load transients. Do not exceed 330μF at any one output. Allowances must be made for load circuit capacitance and the total external capacitor tolerance.
Excessive output capacitance will affect converter start up. Low ESR capacitors, including Os-con and tantalum types, may be used.
(7) See Safe Operating Area curves, or consult the factory for the appriopriate derating.
(8) The case pins on the through-hole package types (suffixes A & N) must be soldered. For more information, see the applicable package outline drawing.
Input–output/input–case
Input to output
Input to output
Over V
in
Range
V
pF
M
T
a
°C
°C
°C
°C
OTP
T
s
+125
–40
—
Method 2002.3
1 msec, Sine, mounted
Method 2007.2,
20-2000 Hz, Soldered
Vertical/Horizontal
Meets UL 94V-O
—
+125
—
500
—
G’s
Suffixes A, C
—
20
(8
—
G’s
—
—
—
50
—
grams
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PT4801A 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 25W 3-Out 48V-Inp Isolate DC/DC Cnvrtr 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
PT4801C 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 25W 3-Out 48V-Inp Isolate DC/DC Cnvrtr 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
PT480E 制造商:Sharp Microelectronics Corporation 功能描述:SIDE LOOKING IR DETECTOR
PT480E00000F 功能描述:光電晶體管 800nm 6.0mA RoHS:否 制造商:OSRAM Opto Semiconductors 最大功率耗散:165 mW 最大暗電流:200 nA 封裝 / 箱體:T-1
PT480F 功能描述:PHOTO TRANS BLACK LEN 860NM SIDE RoHS:否 類別:傳感器，轉(zhuǎn)換器 >> 光學(xué) - 光電檢測(cè)器 - 光電晶體管 系列:* 標(biāo)準(zhǔn)包裝:1,200 系列:- 電壓 - 集電極發(fā)射極擊穿（最大）:30V 電流 - 集電極 (Ic)（最大）:1mA 電流 - 暗 (Id)（最大）:100nA 波長(zhǎng):880nm 視角:24° 功率 - 最大:100mW 安裝類型:通孔 方向:頂視圖 封裝/外殼:徑向
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