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参数资料
| 型号： | PT4481N |
| 元件分类： | 电源模块 |
| 英文描述： | DC-DC REG PWR SUPPLY MODULE |
| 文件页数： | 1/2页 |
| 文件大小： | 93K |
| 代理商： | PT4481N |
Vertical or Horizontal Mounting
-40° to +100°C Operating Temperature
1500 VDC Isolation
36V to 75V Input Range
90% Efficiency
5-bit Programmable Output Voltage
Differential Mode Input Inductor
Remote On/Off
Differential Remote Sense
N+1 Current Sharing
Over-Current Protection
Over-Temperature Protection
Over-Voltage Protection
PT4481 Series
For assistance or to order, call (800) 531-5782
48V
30 AMP 48V INPUT
ISOLATED DC-DC CONVERTER
Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.powertrends.com
Specifications
Characteristics
Conditions
PT4481 SERIES
(T
a=25
°C unless noted)
Symbols
(V
in= 48V, Vo=3.3V unless noted)
Min
Typ
Max
Units
Output Current
Io
Over Vin range
0
—
30
A
Current Limit
Icl
Vin = 36V
—
35
—
A
Current Sharing
Single line referenced to -Vsense
——±10
%
Input Voltage Range
Vin
Io = 0 to max Io
36
48
75
V
Output Voltage Tolerance
Vo
Over Vin Range
TA= -40 to +100°C Baseplate
—
±1.0
±2.0
%Vo
Line Regulation
Regline
Over Vin range @ max Io
—
±0.1
±1.0
%Vo
Load Regulation
Regload
0 to 100% of Io max
—
±0.1
±1.0
%Vo
Vo Ripple/Noise
Vn
Io=30A
—
50
75
mVpp
Transient Response
ttr
Io = 10A to 20A step @ 5A/s
—
25
—
Sec
Vo over/undershoot (no ext caps)
—
4
—
%Vo
Vo Rise Time
Votr
At turn-on
—
10
mSec
Efficiency
η
Io=15A
—
90
—
%
Switching Frequency
o
—
300
—
kHz
Remote On/Off
Off
Open or 2.5 to 5.1 VDC above -Vin
On
Short or 0 to 0.8 VDC above -Vin
Over-Voltage Protection
OVP
Shutdown and latch off
—
125
—
%Vo
Isolation
—
1500
—
VDC
Operating Temperature
Tb
Measured at baseplate
-40
—
+100
°C
Range
Over-Temperature
OTP
Baseplate temperature - Auto reset
—
+105
—
°C
Shutdown Point
Storage Temperature
Ts
—
-40
—
+110
°C
Mechanical Shock
—
Per Mil-STD-883D, Method 2002.3,
—
TBD
—
G’s
1mS, Half-sine, mounted to a fixture
Mechanical Vibration
—
Per Mil-STD-883D, Method 2007.2, —
TBD
—
G’s
20-2000Hz, Soldered in a PC board
Weight
—
90
—
grams
Features
Programming Information
VID4=1
VID4=0
VID3 VID2 VID1 VID0
Vout
1
2.0V
1.30V
1
0
2.1V
1.35V
1
0
1
2.2V
1.40V
1
0
2.3V
1.45V
1
0
1
2.4V
1.50V
1
0
1
0
2.5V
1.55V
1
0
1
2.6V
1.60V
1
0
2.7V
1.65V
0
1
2.8V
1.70V
0
1
0
2.9V
1.75V
0
1
0
1
3.0V
1.80V
0
1
0
3.1V
1.85V
0
1
3.2V
1.90V
0
1
0
3.3V
1.95V
0
1
3.4V
2.00V
0
3.5V
2.05V
Logic 0 = Pin 20 potential (remote sense gnd)
Logic 1 = Open circuit (no pull-up resistors)
VID3 and VID4 may not be changed while the unit is operating.
PT Series Suffix (PT1234X)
Case/Pin
Configuration
Vertical Through-Hole
N
Horizontal Through-Hole
A
Horizontal Surface Mount
C
Ordering Information
PT4481
= 1.3 to 3.5 Volts
(For dimensions and PC board layout, see
Package Styles 1200, 1210 and 1215.)
Most Flexible Isolated DC-DC Converter Available Today!
Vertical or Horizontal Mount in a Single Package
Surface Mount or Through-Hole Pins
Full Telecom Features and Environmental Performance
Pin-Out Information
Pin
Function
1+Vin
2-Vin
3
Inhibit
4
Do not connect
5
Do not connect
6
Sync
7+Vsense
8+Vout
9+Vout
10
+Vout
11
+Vout
12
+Vout
13
+Vout
14
-Vout
15
-Vout
16
-Vout
17
-Vout
18
-Vout
19
-Vout
20
-Vsense
21
VID0
22
VID1
23
VID2
24
VID3
25
VID4
26
Share
Revised 8/10/99
Patent pending on package assembly
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相关代理商/技术参数 |
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| PT4482 | 制造商:TI 制造商全称:Texas Instruments 功能描述:100-W 30-A Programmable Isolated DC/DC Converter |
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