LF500RU Datasheet - Micropower Direct

LF500RU Series
Very Wide Input, 5W SMT
Single & Dual Output
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
Key Features:
Parameter
• 5W Output Power
Input Start Voltage
• Wide 4:1 Inputs
Reverse Polarity Input Current
Short Circuit Input Power
Input Filter
• Miniature SMT Case
• Tight Line/Load Regulation
• 1,500 VDC Isolation
• -40ºC to +71ºC Operation
• 14 Standard Models
• 1.0 MH MTBF Minimum
• Industry Standard Pin-Out
Conditions
24 VDC Input
48 VDC Input
Min.
7.0
14.0
Typ.
8.0
16.0
Max.
9.0
18.0
1.0
1,000 3,000
␲ (Pi) Filter (Meets EN55022 Class A)
Units
VDC
A
mW
Output
Parameter
Output Voltage Accuracy
Output Voltage Balance
Line Regulation
Load Regulation
Ripple & Noise (20 MHz)
Ripple & Noise (20 MHz)
Ripple & Noise (20 MHz)
Output Power Protection
Transient Response Time, See Note 2
Transient Response Deviation
Temperature Coefficient
Output Short Circuit
Conditions
Min.
Typ.
±0.5
±0.5
±0.2
±0.3
50
Max.
±2.0
±3.0
±1.0
±1.0
85
100
15
250
±2
±0.01
Continuous (Autorecovery)
500
±6
±0.02
Dual Output, Balanced Load
For Vin = Min to Max
Iout = 10% to 100%
See Note 1
115
25% Load Step Change
Units
%
%
%
%
mV P - P
mV P - P
mV rms
%
µS
%
%/ºC
General
Parameter
Isolation Voltage
Isolation Resistance
Isolation Capacitance
Switching Frequency
Conditions
60 Seconds
1,000 VDC
100 kHz, 1V
Min.
1,500
1,000
Typ.
Max.
Units
VDC
M
pF
kHz
650
340
750
Typ.
+25
Max.
+71
+90
+125
Units
ºC
ºC
ºC
95
%
Environmental
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292 Page Street
Suite D
Stoughton, MA 02072
USA
T: (781) 344-8226
F: (781) 344-8481
E: [email protected]
W: www.micropowerdirect.com
Parameter
Operating Temperature Range
Operating Temperature Range
Storage Temperature Range
Cooling
Humidity
Physical
Case Size
Case Material
Weight
Conditions
Ambient
Case
Min.
-40
-40
Free Air Convection
RH, Non-condensing
1.31 x 0.81 x 0.40 Inches (33.4 x 20.6 x 10.2 mm)
Non-Conductive Black Plastic (UL94-V0)
0.49 Oz (14g)
Reliability Specifications
Parameter
MTBF
Conditions
MIL HDBK 217F, 25ºC, Gnd Benign
Min.
1.0
Typ.
Max.
Units
MHours
Conditions
24 VDC Input
48 VDC Input
1.5 mm From Case For 10 Sec.
All Models
Min.
-0.7
-0.7
Typ.
Max.
50.0
100.0
260
2,500
Units
Absolute Maximum Ratings
Parameter
Input Voltage Surge (1 Sec)
Lead Temperature
Internal Power Dissipation
Caution: Exceeding Absolute Maximum Ratings may damage the module. These are not continuous operating ratings.
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VDC
ºC
mW
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Model Selection Guide
Model
Number
LF501RU
LF502RU
LF503RU
LF504RU
LF505RU
LF506RU
LF507RU
LF511RU
LF512RU
LF513RU
LF514RU
LF515RU
LF516RU
LF517RU
Input
Voltage (VDC)
Nominal
Range
24
9.0 - 36.0
24
9.0 - 36.0
24
9.0 - 36.0
24
9.0 - 36.0
24
9.0 - 36.0
24
9.0 - 36.0
24
9.0 - 36.0
48
18.0 - 75.0
48
18.0 - 75.0
48
18.0 - 75.0
48
18.0 - 75.0
48
18.0 - 75.0
48
18.0 - 75.0
48
18.0 - 75.0
Current (mA)
Full-Load
No-Load
217
20
260
20
251
20
251
20
260
20
251
20
252
20
109
10
130
10
126
10
125
10
130
10
125
10
126
10
Voltage
Output
Current
Current
(VDC)
(mA, Max)
(mA, Min)
1,200
1,000
417
333
±500
±208
±167
1,200
1,000
417
333
±500
±208
±167
120.0
100.0
41.7
33.3
±50.0
±20.8
±16.7
120.0
100.0
41.7
33.3
±50.0
±20.8
±16.7
3.3
5.0
12.0
15.0
±5.0
±12.0
±15.0
3.3
5.0
12.0
15.0
±5.0
±12.0
±15.0
Notes:
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. No-load operation will not damage these units, however, they may not meet specifications.
4. Dual output units may provide a 10V, 24V or 30V 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 applications 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 <1.0 at 100 kHz) capacitor be mounted close to the converter. For
24V input units a 4.7 µF is recommended, and for 48V units a 2.2 µF.
6. Maximum capacitive load for 3.3V & 5V units is 2,000 µF, for 12V units 470 µF, for 15V & ±12V units 330 µF, for
±5V units 680 µF, and for ±15V units 220 µF.
7. 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.
Reflected
ciency
Ripple Cur. Effi
(%, Typ)
(mA)
15
15
15
15
15
15
15
10
10
10
10
10
10
10
76
80
83
83
80
83
83
76
80
83
83
80
83
83
Fuse Rating
Slow-Blow
(mA)
1,500
1,500
1,500
1,500
1,500
1,500
1,500
700
700
700
700
700
700
700
Derating Curve
Mechanical Dimensions
Remote ON/OFF
Parameter
Supply On
Supply Off
Standby Input Current
Control Common
Condition
Units
2.5 to 5.5 or Open Circuit
VDC
-0.7 to 0.8
VDC
10
mA
Referenced to Negative Input (-Vin)
Remote ON/OFF Notes:
1. Maximum sink current at the on/off pin (pin 1) during a logic low is 300 µA.
2. Maximum allowable leakage current of a switch connected to the on/off terminal
(Pin 1) at logic high (2.5V to 100V) is 200 µA.
Board Layout
Pin Connections
Pin
Single
Dual
1
On/Off
On/Off
2
-Vin
-Vin
3
-Vin
-Vin
9
NC
Common
10
NC
NC
11
NC
-Vout
12
NC
NC
13
NC
NC
14
+Vout
+Vout
15
NC
NC
16
-Vout Common
22
+Vin
+Vin
23
+Vin
+Vin
24
NC
NC
NC: No Connection
Notes:
• All dimensions are typical in
inches (mm)
• Tolerance x.xx = ±0.01 (±0.25)
• Pin 1 is marked by a “dot” or indentation on the unit
MicroPower Direct
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292 Page Street Ste D Stoughton, MA 02072
•
TEL: (781) 344-8226
•
FAX: (781) 344-8481
•
E-Mail: [email protected]