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參數(shù)資料
| 型號： | PT4125A |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 20-W 48-V Input Isolated DC/DC Converter |
| 中文描述： | 20鎢48 - V輸入隔離DC / DC轉(zhuǎn)換器 |
| 文件頁數(shù)： | 2/9頁 |
| 文件大?。?/td> | 178K |
| 代理商： | PT4125A |
For technical support and more information, see inside back cover or visit www.ti.com
PT4120 Series
20-W 48-V Input Isolated
DC/DC Converter
Specifications
(Unless otherwise stated, T
a
=25°C, V
in
=48V, C
out
=0μF, and I
o
=I
o
max)
PT4120 SERIES
Typ
Characteristic
Symbol
Conditions
Min
Max
Units
Output Current
I
o
Over V
in
range
V
o
= 15V
V
o
= 12V
V
o
=5.0V
V
o
≤
3.3V
0.1
(1)
0.1
(1)
0.1
(1)
0.1
(1)
36.0
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
600
800
—
—
—
—
—
48.0
±1
—
±0.5
±0.2
±7
±0.4
±13
±2
±67
86
83
82
78
67
0.5
15
100
±3.0
±150
2xI
o
max
650
850
31
1.3
1.6
4.0
5.0
75.0
±1.5
±50
—
±1.0
±33
±1.0
±33
—
—
—
—
—
—
—
—
—
—
—
—
—
700
900
—
A
Input Voltage Range
Set Point Voltage Tolerance
V
in
V
o
tol
Over I
o
Range
VDC
%V
o
mV
%V
o
%V
o
mV
%V
o
mV
%V
o
mV
V
o
≥
5.0V
V
o
≤
3.3V
Temperature Variation
Line Regulation
Reg
temp
Reg
line
–40°
≤
T
a
≤
+85°C
Over V
in
range
V
o
≥
5.0V
V
o
≤
3.3V
Vo
≥
5.0V
V
o
≤
3.3V
V
o
≥
5.0V
V
o
≤
3.3V
V
o
= 15V
V
o
= 12V
V
o
=5.0V
V
o
=3.3V
V
o
=1.8V
V
o
≥
5.0V
V
o
≤
3.3V
Load Regulation
Reg
load
Over I
o
range
Total Output Voltage Variation
V
o
tot
Includes set-point, line load,
–40°
≤
T
a
≤
+85°C
Efficiency
η
%
V
o
Ripple (pk-pk)
V
r
20MHz bandwidth
%V
o
mV
pp
μs
%V
o
mV
A
Transient Response
t
tr
0.1A/μs, load step 50% to 100% I
o
max
V
o
over/undershoot
V
tr
V
o
≥
5.0V
V
o
≤
3.3V
Short Circuit Current
Switching Frequency
I
sc
s
Over V
in
range
V
o
≥
12.0V
V
o
≤
5.2V
kHz
Under-Voltage Lockout
Remote On/Off (Pin 1)
Input High Voltage
Input Low Voltage
Input Low Current
Standby Input Current
Internal Input Capacitance
External Output Capacitance
Isolation Voltage
Capacitance
Resistance
Operating Temperature Range
Storage Temperature
Reliability
UVLO
V
Referenced to –Vin (pin 2)
V
IH
V
IL
I
IL
I
in
standby
C
in
C
out
2.5
–0.2
—
—
—
0
1500
—
10
-40
-40
—
—
–10
7
0.5
—
—
1100
—
—
—
7.0
(2)
+0.8
–
50
—
200
—
—
—
+85
(3)
+125
V
μA
mA
μF
μF
V
pF
M
°C
°C
pins 1 & 2 connected
Between +V
o
and –V
o
Input to output
T
a
T
s
MTBF
Over V
in
range
—
Per Bellcore TR-332
50% stress, T
a
=40°C, ground benign
Per Mil-Std-883D, method 2002.3,
1mS, half-sine, mounted to a fixture
Per Mil-Std-883D, method 2007.2,
20-2000Hz, soldered in a PC board
—
Materials meet UL 94V-0
4.0
—
—
10
6
Hrs
Mechanical Shock
—
—
500
—
G’s
Mechanical Vibration
—
—
15
—
G’s
Weight
Flammability
Notes:
(1) The DC/DC converter will operate at no load with reduced specifications.
(2) The Remote On/Off (pin 1) has an internal pull-up, and if it is left open circuit the PT4120 will operate when input power is applied. Refer to the
application notes for interface considerations.
(3) See Safe Operating Area curves or contact the factory for the appropriate derating.
—
—
—
23
—
grams
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| PT4125C | 功能描述:CONVERTR DC-DC 5.2V 3.8A HRZ SMD RoHS:是 類別:電源 - 板載 >> DC DC Converters 系列:PT4120 標準包裝:10 系列:PT4570 類型:隔離 輸出數(shù):1 電壓 - 輸入（最小）:36V 電壓 - 輸入（最大）:75V Voltage - Output 1:9V Voltage - Output 2:- Voltage - Output 3:- 電流 - 輸出（最大）:3.3A 電源（瓦） - 制造商系列:30W 電壓 - 隔離:1.5kV（1500V） 特點:- 安裝類型:表面貼裝 封裝/外殼:19-SIP SMD 模塊 尺寸/尺寸:3.00" L x 1.19" W x 0.50" H（76.2mm x 30.2mm x 12.7mm） 包裝:托盤 工作溫度:-40°C ~ 85°C 效率:84% 電源（瓦特）- 最大:30W |
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| PT4126C | 功能描述:DC/DC轉(zhuǎn)換器 1.5Vout 5A 48V-Input Iso DC-DC Converter RoHS:否 制造商:Murata 產(chǎn)品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標稱）: 輸出端數(shù)量:1 輸出電壓（通道 1）:3.3 V 輸出電流（通道 1）:600 mA 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風格:SMD/SMT 封裝 / 箱體尺寸: |
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