參數(shù)資料
型號(hào)： PT4225
廠商： Texas Instruments, Inc.
元件分類： DC/DC變換器
英文描述： 10 Watt Low-Profile 48V Input Isolated DC-DC Converter(10W，小外形，48V輸入，隔離DC-DC變換器（原始輸出電壓2.5V,可在指定范圍內(nèi)上下調(diào)整))
中文描述： 10瓦低輪廓48V輸入隔離DC - DC轉(zhuǎn)換器（功率10W，小外形，48V的輸入，隔離的DC - DC變換器（原始輸出電壓為2.5V，可在指定范圍內(nèi)上下調(diào)整））
文件頁(yè)數(shù)： 1/6頁(yè)
文件大?。?/td> 221K
代理商： PT4225
For technical support and more information, see inside back cover or visit www.ti.com/powertrends
Standard Application
PT4220 Series—48V
10 Watt Low-Profile 48V Input
Isolated DC-DC Converter
SLTS127
(Revised 2/7/2001)
Features
10W Output Power
Input Voltage: 36V to 75V
1500 VDC Isolation
Temp Range: –40°C to +85°C
Remote On/Off Control
Adjustable Output Voltage
Undervoltage Lockout
Current Limit
Short-Circuit Protection
Low-Profile Package (8mm)
Solderable Copper Case
Ordering Information
PT 4221
r
=1.8 Volts
PT 4222
r
=3.3 Volts
PT 4223
r
=5.0 Volts
PT 4224
r
=12.0Volts
PT 4225
r
=2.5 Volts
PT 4226
r
=1.5 Volts
Pin-Out Information
Pin Function
Remote
ON/OFF
2
Do not connect
3
-V
in
4
Do not connect
5
+V
in
6
-V
out
7
-V
out
8
+V
out
9
+V
out
10
V
out
adjust
1
Description
Power Trends’ PT4220 is a new series of
isolated DC-DC Converters housed in an
ultra-low profile (8mm) solderable copper
case. They employ a state-of-the-art high
frequency switch mode topology, and are
available in either a through-hole or
surface-mount package. They are designed
for Telecom, Datacom, Industrial, Computer,
Medical, and other distributed power applica-
tions requiring input-to-output isolation over
an industrial temperature range.
PT Series Suffix
(PT12345
X
)
Case/Pin
Configuration
Vertical Through-Hole
Horizontal Through-Hole
Horizontal Surface Mount
(For dimensions and PC board layout,
see Package Styles 1520 and 1530.)
N
A
C
PT4220
+Vout
-Vout
+Vin
-Vin
Remote
On/Off
V
o
(adj)
1
3
5
8, 9
6, 7
10
L
O
A
D
+V
in
-V
in
+V
out
-V
out
Specifications
Characteristics
(T
a
=25
°
C unless noted)
Output Current
PT4220 SERIES
Typ
0.1
(1)
—
0.1
(1)
—
0.1
(1)
—
—
5.0
—
4.0
—
2.0
36.0
48.0
Symbols
I
o
Conditions
Over V
in
range
Min
Max
3.0
2.0
0.85
—
—
—
75.0
Units
V
o
≤
3.3V
V
o
=5.0V
V
o
= 12V
V
o
≤
3.3V
V
o
= 5.0V
V
o
=12.0V
A
Short Circuit Current
I
sc
V
in
= 48V
A
Input Voltage Range
Output Voltage Tolerance
V
in
V
o
tol
I
o
= 0.1 to I
o
max
Over V
in
range, I
o
=I
o
max
–40°C
≤
T
a
≤
85°C
Over V
in
range @ max I
o
10% to 100% of I
o
max
V
in
=48V, I
o
= I
o
max
V
—
±1.0
±2.3
%V
o
Line Regulation
Load Regulation
V
o
Ripple/Noise
Reg
line
Reg
load
V
n
—
—
—
—
—
—
—
—
—
—
—
—
—
250
–40
–40
4.7
±1
±5
50
100
75
150
350
71
73
78
81
85
87
300
—
—
—
±15
±15
—
—
—
—
—
—
—
—
—
—
—
350
+85
(2)
110
—
mV
mV
V
o
≤
5V
V
o
=
12V
mV
pp
Transient Response
(no output capacitor)
t
tr
50% load change
V
o
over/undershoot
μSec
mV
mV
V
o
≤
5V
V
o
=
12V
V
o
= 1.5V
V
o
= 1.8V
V
o
= 2.5V
V
o
= 3.3V
V
o
= 5.0V
V
o
=12.0V
Efficiency
η
V
in
=48V, I
o
=I
o
max
%
Switching Frequency
Operating Temperature
Storage Temperature
Reliability
o
T
a
T
s
MTBF
Over V
in
and I
o
Over V
in
range
—
Per Bellcore TR-332
50% Stress, 40°C, ground benign
Per Mil-STD-202F, Method 213B,
6mS, Half-sine, mounted to a PCB
Per Mil-STD-202F, Method 204D,
10-500Hz, Soldered in a PCB
kHz
°C
°C
10
6
Hrs
Mechanical Shock
—
—
TBD
—
G’s
Mechanical Vibration
—
—
TBD
—
G’s
Weight
Isolation
Capacitance
Resistance
Flammability
Remote On/Off
—
—
—
—
—
On
(3)
Off
—
1500
—
10
20
—
1100
—
—
—
—
—
grams
V
pF
M
Input–output/Input–case
Materials meet UL 94V-0
Referenced to –V
in
4.5
—
—
—
—
0.8
V
Notes:
(1) The converter will operate down to no load with reduced specifications.
(2) See SOA curves or contact the factory for appropriate derating.
(3) Pin 1 has an internal pull-up and may be driven from an open-collector device. If left open, the converter will
operate when input power is applied. The maximum voltage that may be applied to Pin 1 is 20V.
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PT4225C 功能描述:CONVERTER DC-DC 2.5VIN 3.0A SMD RoHS:是 類別:電源 - 板載 >> DC DC Converters 系列:PT4220 標(biāo)準(zhǔn)包裝:10 系列:PT4570 類型:隔離 輸出數(shù):1 電壓 - 輸入（最?。?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(diǎn):- 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
PT4225N 功能描述:CONVERTER DC-DC 2.5VIN 3.0A VRT RoHS:是 類別:電源 - 板載 >> DC DC Converters 系列:PT4220 標(biāo)準(zhǔn)包裝:10 系列:PT4570 類型:隔離 輸出數(shù):1 電壓 - 輸入（最?。?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(diǎn):- 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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