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Single & Dual Output
DC/DC Converter
FEATURES:
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20W DIL PACKAGE
2:1 WIDE INPUT RANGE
100% BURNED IN
HIGH EFFICIENCY
UL94V-0 PACKAGE MATERIAL
CUSTOM SOLUTIONS AVAILABLE
RoHS COMPLIANT
Remote Control:On/Off
Series LCD20
20Watt | DC-DC Converter
APPLICATIONS:
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Wireless Network
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Telecom/Datacom
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Industry Control System
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Measurement Equipment
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Semiconductor Equipment
M
ODEL
S
ELECTION
C
HART
Input
Voltage
Vdc
9-18
9-18
9-18
9-18
9-18
9-18
18-36
18-36
18-36
18-36
18-36
18-36
36-75
36-75
36-75
36-75
36-75
36-75
30
30
30
30
30
30
25
25
25
25
25
25
20
20
20
20
20
20
Part Number
LCD20-12S3P3
LCD20-12S05
LCD20-12S12
LCD20-12S15
LCD20-12D12
LCD20-12D15
LCD20-24S3P3
LCD20-24S05
LCD20-24S12
LCD20-24S15
LCD20-24D12
LCD20-24D15
LCD20-48S3P3
LCD20-48S05
LCD20-48S12
LCD20-48S15
LCD20-48D12
LCD20-48D15
No-Load
(mA TYP)
Input
Current
Full Load
(mA TYP)
Output
Voltage
Vdc
3.3
5
12
15
±12
±15
3.3
5
12
15
±12
±15
3.3
5
12
15
±12
±15
Output
Current
Full Load
(mA)
Efficiency
%TYP
85
86
87
87
87
87
86
87
88
88
88
88
87
88
88
88
88
88
Capacitor
Load
uF MAX
8200
5600
960
680
470
330
8200
5600
960
680
470
330
8200
5600
960
680
470
330
1456
1938
1920
1911
1915
1917
719
958
949
945
947
947
356
473
474
472
473
474
4500
4000
1670
1330
±833
±667
4500
4000
1670
1330
±833
±667
4500
4000
1670
1330
±833
±667
NOTE: All specifications in this datasheet are measured at an ambient temperature of 25°C, humidity<75%, nominal input voltage and at
rated output load unless otherwise specified.
Output Voltage Adjustment
Control Pin Suggest Circuit
1/3
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Parameters
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Conditions
12 Vin
24 Vin
48 Vin
12 Vin
24 Vin
48 Vin
Input
p
Inp
Specifications
Voltage Types
Start-up voltage /
under voltage shut down
Min
Typ
8.7/8.3
16.9/16.2
33.0/30.5
Max
2:1
9
18
36
25
50
100
Units
VDC
VDC
V
V
mA
Surge voltage
(100 msec. max.)
Reflected input ripple current
30
LC Network
Fuse Recommended
Filter
Protection
Output Specifications
Outp
Parameters
Voltage Tolerance
Output voltage adj. range
Line Regulation
(Vmin – Vmax)
Load Regulation
(25 – 100 %)
Load variation(25% /100%)
Conditions
only for single output models
Min
Typ
Max
±2
±10
0.5
0.5
0.5
1.0
5.0
10
100
Units
%
%
%
%
%
%
%
%
mVp-p
%/
℃
single output
dual output
single output
dual output models balanced load
dual output models unbalanced load
Minimum load
Ripple and noise(20 MHz bandwidth)
required
with external capacitor (See Note 1)
0
Temperature coefficient
Output current limitation
Short circuit protection
Over voltage protection
Start up time
Transient response setting time
3.3VDC
5VDC
12VDC
15VDC
nominal Vin and constant resistive load
3.7
5.6
13.5
16.8
25% load step change
±0.05
at 150 % of Iout max., constant current
Hiccup (automatic recovery)
5.4
7.0
19.6
20.5
30
300
Vout
Vout
Vout
Vout
ms
us
p
General Specifications
Parameters
Temperature ranges
Humidity
Reliability, calculated MTBF
Conditions
Operating(with derating)
Case temperature
Storage
non condensing
Min
-40
-55
5
340000
1000
Typ
Max
+75
105
+125
95
1500
MIL-HDBK-217F, @ +25°C, ground benign
Isolation voltage
Isolation capacity
Isolation resistance
Remote On/Off
Switching frequency (fixed)
Vibration and thermal shock
For 60 seconds(Input/Output)
Input/Output
Input/Output (500 VDC)
On
Off
Off idle current:
1000
Units
℃
℃
℃
%
Hours
VDC
pF
MΩ
Safety standards
Case material
Base material
Potting material
Weight
Soldering temperature
EMI
(Conducted&Radiation)
3.0 ~ 15 VDC or open circuit
0 ~ 1.2 VDC or short circuit pin 6 and pin 2
2.5
mA
330
KHz
MIL-STD-810E
EN 60950-1, IEC 60950-1
nickel coated copper
Non-conductive FR4
epoxy (UL 94V-0 rated)
15 g (0.53 oz)
max. 265℃ / 10sec
EN55022 Class A
Note : 1
Ripple & Noise measurement bandwidth is 20 MHz, measured with a 1uF M/C and a 10uF T/C.
2/3
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Temperature Derating Graph
OutPut Power(%)
100
75
50
25
0
-40
65
85 100
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Nature Convection
Ambient Temperature(
℃
)
EMC Considerations
Suggested Schematic to comply with EN55022 Conducted Noise emission Class B
Following components are needed to comply with EN55022 Class B conducted noise:
LCD20-12S(D)XXXX
LCD20-24S(D)XXXX
Componet
Value
C1,C2,C3
6.8uF
C5,C6
1000pF
L1
325uH
LCD20-48S(D)XXXX
Voltage
50V
2KV
Reference
1812 MLCC
1206 MLCC
Common Mode Choke
Componet
C1,C2,C3,C4
C5,C6
L1
Value
2.2uF
1000pF
260uH
Voltage
100V
2KV
Reference
1812 MLCC
1206 MLCC
Common Mode Choke
O
UTLINE
D
RAWING
Package Style and Pinning (mm)
1. All dimensions in Inches (mm)
Tolerance: X.XX±0.02 (X.X±0.5)
X.XXX±0.01 (X.XX±0.25)
2. Pin pitch tolerance
±0.01(0.25)
3. Pin dimension tolerance
±0.004
(0.1)
PIN CONNECTION
PIN
1
2
3
4
5
6
SINGLE
+ INPUT
- INPUT
ON/OFF
+VOUT
TRIM
-VOUT
DUAL
+ INPUT
- INPUT
ON/OFF
+VOUT
COMMON
-VOUT
All specifications are typical at nominal input, nominal load and 25
°
C unless otherwise specified.
External, low ESR, 10 microfarad (minimum) capacitor across output is recommended for operation.
3/3
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