LF217RW [MPD]
Miniature SMT, 2W Wide Input Range DC/DC Converters; 微型贴片， 2W宽输入范围DC / DC转换器
| 型号： | LF217RW |
| 厂家： | 
MICROPOWER DIRECT, LLC |
| 描述： | Miniature SMT, 2W Wide Input Range DC/DC Converters |
| 文件： | 总2页 (文件大小：168K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
LF200RWSeries
Miniature SMT, 2W
Wide Input Range
DC/DC Converters
Electrical Specifications
Specifications typical @ +25°C, nominal input voltage & rated output current, unless otherwise noted. Specifications subject to change without notice.
Input
Parameter
Key Features:
Conditions
Min.
3.5
Typ.
4.0
Max.
4.5
Units
• 2W Output Power
• 2:1 Input Voltage Range
• 1,500 VDC Isolation
• Short Circuit Protected
5 VDC Input
12 VDC Input
24 VDC Input
48 VDC Input
4.5
8.0
16.0
7.0
12.0
24.0
9.0
18.0
36.0
Input Start Voltage
VDC
• Miniature SMT Package
• Single & Dual Outputs
• 1.0 MH MTBF
Input Filter
π (Pi) Filter
Reverse Polarity Input Current
Short Circuit Input Power
Output
1.0
A
1,500
mW
• Industry Standard Pin-Out
Parameter
Conditions
Min.
Typ.
1.0
1.0
0.3
0.5
30
Max.
2.0
2.0
0.5
0.75
50
Units
%
%
%
%
mV P - P
mV P - P
mV rms
%
µSec
%
Output Voltage Accuracy
Output Voltage Balance
Line Regulation
Vin = Min to Max
Iout = 25% to 100%
Load Regulation
Ripple & Noise (20 MHz) (Note 1)
Ripple & Noise (20 MHz)
Ripple & Noise (20 MHz)
Output Power Protection
Transient Response Time (Note 2)
Transient Response Deviation
Temperature Coefficient
Output Short Circuit
General
Over Line, Load & Temp.
75
15
120
100
3.0
0.01
300
5.0
0.02
50% Load Step Change
RoHS Compliant
%/°C
Continuous
Parameter
Isolation Voltage
Conditions
Min.
Typ.
Max.
Units
VDC
VDC
MΩ
pF
60 Seconds 1,500
Isolation Test Voltage
Isolation Resistance
Isolation Capacitance
Switching Frequency
Environmental
Flash Tested For 1 Sec 1,650
1,000 VDC 1,000
100 kHz, 1V
250
300
420
kHz
Parameter
Conditions
Min.
-40
-40
-40
Typ.
+25
+25
Max.
+65
+90
Units
°C
°C
Operating Temperature Range
Operating Temperature Range
Storage Temperature Range
Cooling
Ambient
Case
+125
°C
MicroPower Direct
292 Page Street
Suite D
Stoughton, MA 02072
USA
Free Air Convection
Humidity
Physical
Case Size
Case Material
RH, Non-condensing
95
%
0.94 x 0.54 x 0.30 Inches (23.8 x 13.7 x 7.62 mm)
Non-Conductive Black Plastic (UL94-V0)
0.18 Oz (5.1g)
Weight
T: (781) 344-8226
F: (781) 344-8481
E: sales@micropowerdirect.com
W: www.micropowerdirect.com
Reliability Specifications
Parameter
MTBF
Conditions
MIL HDBK 217F, 25°C, Gnd Benign 1,000
Min.
Typ.
Typ.
Max.
Units
kHours
Absolute Maximum Ratings
Parameter
Conditions
Min.
-0.7
-0.7
-0.7
-0.7
Max.
11.0
25.0
50.0
100.0
260
Units
5 VDC Input
12 VDC Input
24 VDC Input
48 VDC Input
Input Voltage Surge (1 Sec)
VDC
Lead Temperature
Internal Power Dissipation
1.5 mm From Case For 10 Sec
All Models
°C
mW
1,800
Caution: Exceeding Absolute Maximum Ratings may damage the module. These are not continuous operating ratings.
Model Selection Guide
Input
Output
Voltage Current
(VDC) (mA, Max) (mA, Min)
Reflected
Ripple
Fuse Rating
Slow-Blow
(mA)
1,000
1,000
1,000
1,000
1,000
1,000
1,000
500
Model
Efficiency
(%, Typ)
Voltage (VDC)
Number
Current (mA)
Full-Load No-Load
Current
Current (mA)
100
100
100
100
100
100
100
25
Nominal
5
Range
LF201RW
LF202RW
LF203RW
LF204RW
LF205RW
LF206RW
LF207RW
LF211RW
LF212RW
LF213RW
LF214RW
LF215RW
LF216RW
LF217RW
LF221RW
LF222RW
LF223RW
LF224RW
LF225RW
LF226RW
LF227RW
LF231RW
LF232RW
LF233RW
LF234RW
LF235RW
LF236RW
LF237RW
Notes:
4.5 - 9.0
471
548
534
582
667
615
598
184
217
209
220
242
224
226
96
109
109
108
119
112
110
49
40
40
40
40
40
40
40
20
20
20
20
20
20
20
10
10
10
10
10
10
10
8
3.3
5.0
12.0
15.0
5.0
12.0
15.0
3.3
500.0
400.0
167.0
134.0
200.0
83.0
125.0
100.0
42.0
33.0
50.0
21.0
17.0
125.0
100.0
42.0
33.0
50.0
21.0
17.0
125.0
100.0
42.0
33.0
50.0
21.0
17.0
125.0
100.0
42.0
33.0
50.0
21.0
17.0
70
73
75
73
64
69
71
73
77
80
80
73
78
78
72
77
80
81
74
78
80
71
73
79
79
71
77
77
5
5
5
5
5
5
4.5 - 9.0
4.5 - 9.0
4.5 - 9.0
4.5 - 9.0
4.5 - 9.0
4.5 - 9.0
67.0
12
12
12
12
12
12
12
24
24
24
24
24
24
24
48
48
48
48
48
48
48
9.0 - 18.0
9.0 - 18.0
9.0 - 18.0
9.0 - 18.0
9.0 - 18.0
9.0 - 18.0
9.0 - 18.0
18.0 - 36.0
18.0 - 36.0
18.0 - 36.0
18.0 - 36.0
18.0 - 36.0
18.0 - 36.0
18.0 - 36.0
36.0 - 72.0
36.0 - 72.0
36.0 - 72.0
36.0 - 72.0
36.0 - 72.0
36.0 - 72.0
36.0 - 72.0
500.0
400.0
167.0
134.0
200.0
83.0
5.0
25
25
25
25
25
25
15
15
15
15
15
15
15
10
10
10
500
500
500
500
500
500
250
250
250
250
250
250
250
120
120
120
12.0
15.0
5.0
12.0
15.0
3.3
67.0
500.0
400.0
167.0
134.0
200.0
83.0
5.0
12.0
15.0
5.0
12.0
15.0
3.3
67.0
500.0
400.0
167.0
134.0
200.0
83.0
57
53
55
62
57
57
8
8
8
8
8
8
5.0
12.0
15.0
5.0
12.0
15.0
10
10
10
10
120
120
120
120
67.0
1. When measuring output ripple, it is recommended that an external 0.47 µF ceramic capacitor be placed from the +Vout pin to the -Vout pin for single output units and
from each output to common for dual output units. For noise sensitive applications, the use of 3.3 µF capacitors will reduce the output ripple.
2. Transient recovery is measured to within a 1% error band for a load step change of 75% to 100%.
3. Operation at no-load will not damage these units. However, they may not meet all specifications.
4. Dual output units may be connected to provide a 10 VDC, 24 VDC or 30 VDC output. To do this, connect the load across the positive (+Vout) and negative (-Vout) outputs
and float the output common.
5. The converter should be connected to a low ac-impedance source. An input source with a highly inductive impedance may affect the stability of the converter. In appli-
cations where the converter output loading is high and input power is supplied over long lines, it may be necessary to use a capacitor on the input to insure start-up.
In this case, it is recommended that a low ESR (ESR <1.0Ω at 100 kHz) capacitor be mounted close to the converter. For 5V input units a 8.2 µF is recommended, for 12V
input units, a 3.3 µF; and for 24V & 48V units a 1.5 µF.
6. It is recommended that a fuse be used on the input of a power supply for protection. See the table above for the correct rating.
Derating Curve
Capacitive Load
Mechanical Dimensions
Output (VDC)
µF Max
3.3
5.0
12.0
15.0
5.0
2,200
1,000
170
110
470
100
47
12.0
15.0
Note: For dual output Units, Cap
load is given for each output.
Pin Connections
Solder Layout
Pin
Single
Dual
1
-Vin
-Vin
7
NC
NC
8
NC
Common
+Vout
-Vout
+Vin
9
+Vout
-Vout
+Vin
10
16
NC = No Connection
Mechanical Notes:
All dimensions are typical in inches (mm)
Tolerance x.xx = 0.01 ( 0.25)
MicroPower Direct
•
www.micropowerdirect.com
292 Page Street Ste D Stoughton, MA 02072
•
TEL: (781) 344-8226
FAX: (781) 344-8481
•
E-Mail: sales@micropowerdirect.com
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