Features
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ECHIN Technology Co., Ltd
L115W(-RT) Series
15 Watt Output Power
Regulated Output
4:1 Wide Range Input Voltage
Efficiency up to 86%
1500 VDC Isolation Voltage
Operating Temperature Range -40℃~60℃
(Non-Derating)
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Trim Function (Optional)
Remote ON/OFF - Enable-High (Optional)
Meets EMI EN55022 Class A
Meets UL60950-1 Safety (Approved For Customer)
UL94V-0 Package Material
2.0” x1.0” x0.4” BRICK package
3 Years Warranty
Description
Applications
L115W(-RT) series are isolated 15 Watt DC/DC
converters in 2.0”x1.0”x0.4” BRICK packages, and
allow a wide 4:1 input voltage range of 24V and 48V to
convert to a standard output voltage of 3.3V, 5V, 12V,
15V, ±5V, ±12V and ±15V.
L115W(-RT) series have the Trim and Remote
ON/OFF as optional functions, the part number is
added suffix “-T” and “-R”.
△ Automatic Control System
△ Industry Computer
△ Communication System
△ Distribute Power System
△ Movable/Portable Test Equipment
△ Local Power System
△ Other Applications meet Specifications.
General Specifications
Parameter
Storage Temperature
Operating Temperature
Condition
Min.
Typ.
Max.
Ambient
-55
---
+125 ℃
Ambient
-40
---
+60℃
℃
Case
-40
---
+105 ℃
---
---
95 %
1.5 KV
---
---
Relative Humidity
Isolation Voltage
Input to Output, 60 sec.
Isolation Resistance
Input to Output
1 G ohm
---
---
Isolation Capacitance
Input to Output
---
700
1500 pF
Switching Frequency
Max. Load
280 KHz
320 KHz
360 KHz
MTBF
Vin-N, Max. Load, 25℃
---
1 MHrs
---
Weight
Silicon
---
32 g
---
Case Material
Nickel Plated Metal with Non-Conductive Base, Six-side Shielded (Meets UL94V-0)
Dimensions
2.0 x 1.0 x 0.4 inch ( 50.8 x 25.4 x 10.2 mm )
www.echin.com.tw
Email: sales@echin.com.tw
2012/05
Version: 3
L115W(-RT) Series
ECHIN Technology Co., Ltd
Selection Guide
Input
Voltage
Part
Number
Output
(7)
Current
Ref. Ripple
Nominal
( Low ~ High )
No Load
Max. Load
Max. Load
Typ.
Typ.
Typ.
VDC
mA
mA
mA
Voltage
Typ.
Efficiency
Current
Min.
Max.
Max. Load
Cap.
Load(8)
Max.
Typ.
VDC
mA
mA
%
µF
L115W-2403S(-RT)
705
3.3
400
4000
78
3300
L115W-2405S(-RT)
763
5
300
3000
82
3300
736
12
125
1250
85
1000
15
100
1000
86
1000
L115W-2412S(-RT)
24
25
L115W-2415S(-RT)
727
40
( 9 ~ 36 )
L115W-2405D(-R)
772
±5
± 150
± 1500
81
1000
L115W-2412D(-R)
736
± 12
± 62.5
± 625
85
470
L115W-2415D(-R)
727
± 15
± 50
± 500
86
470
L115W-4803S(-RT)
353
3.3
400
4000
78
3300
L115W-4805S(-RT)
381
5
300
3000
82
3300
367
12
125
1250
85
1000
15
100
1000
86
1000
L115W-4812S(-RT)
48
15
L115W-4815S(-RT)
363
20
( 18 ~ 75 )
L115W-4805D(-R)
385
±5
± 150
± 1500
81
1000
L115W-4812D(-R)
368
± 12
± 62.5
± 625
85
470
L115W-4815D(-R)
363
± 15
± 50
± 500
86
470
Note:
1)
All specifications are measured at nominal input voltage, constant resistive load between Min. and Max. output
current, and probe bandwidth should be under 20MHz, Ta = +25℃.
2)
When the Load is at No-Load or lower than Min. output current, the DC/DC converters will not be damaged;
however, all the parameters may be not reaching all specifications listed.
3)
Output Ripple & Noise Test please refer to E-Chin Technology Co., Ltd. proposed test-method.
4)
Load Regulation and Line Regulation calculation please refer to E-Chin Technology Co., Ltd. proposed formula.
5)
An external fuse is needed at the front end of DC/DC converters for a protection as a recommended settlement
in order to avoid a surge current or a maximum input current.
6)
“Vin-H” means “Vin-High”, “Vin-N” means “Vin-Nominal”, and “Vin-L” means “Vin-Low”.
7)
“Ref. Ripple” means “Reflected Ripple of Input Current”.
8)
The total Capacitive Loads of output should be lower than the value written above.
9)
Other Input Voltages, Output Voltages and Specifications may be available, please contact us.
www.echin.com.tw
Email: sales@echin.com.tw
2012/05
Version: 3
ECHIN Technology Co., Ltd
Input Specifications
Parameter
L115W(-RT) Series
Condition
Min.
Typ.
Max.
24VDC models
9
24
36 V
48VDC models
18
48
75 V
24VDC models
8
8.5
9V
48VDC models
17
17.5
18 V
24VDC models
8
8.3
8.5 V
48VDC models
17
17.3
17.5 V
Stand-by Input Current
Vin-L to Vin-H
---
---
2 mA
Short Circuit Input Power
All models
---
---
3500 mW
Input Filter
Pi-Network
Meets EMI EN55022 Class A
Input Voltage Range
Power ON Voltage Range
Power OFF Voltage Range
Output Specifications
Parameter
Condition
Min.
Typ.
Max.
Output Voltage Accuracy
Vin-N, Max. Load
---
± 0.5
± 1.0 %
Line Regulation
Vin-L to Vin-H @ Max. Load
---
± 0.1
± 0.3 %
Load Regulation
Io = 10% to 100% Load @ Vin-N
---
± 0.3
± 0.5 %
Balance Regulation
Vin-N, Max. Load, Dual Output
---
± 1.0
± 2.0 %
Temperature Drift
Lowest to Highest Temp.
---
± 0.01
± 0.02 %/℃
℃
Ripple & Noise
Peak to Peak, Each Output, 20MHz
---
50
75 mV
---
150
300 µ Sec
---
± 2.0
± 4.0 %Vo
Min.
Typ.
Max.
110%Io
---
---
Transient Recovery Time
Vin-N, 25% load step change
Transient Response Deviation
Protection Specifications
Parameter
Condition
Vin-L to Vin-H
Over Power Protection
Output Short Circuit Protection Continuous, Auto-Recovery, Hiccup
External Functions Specifications
Remote Control Function ---Enable High
TRIM Control Function
Parameter
Condition
Min.
Typ.
Max.
Parameter
System
Disable
V-Remote
0
---
0.8 (V)
I-Remote
---
---
-500 (µA)
Trim Up
Range
V-Remote
2.5 V
---
Vin-H
I-Remote
---
---
-450 (µA)
System
Enable
Trim Down
Range
Condition
Min. Typ.
Max.
+9
+10
+11%Vo
-9
-10
-11%Vo
Vin-L to Vin-H,
10% to 100% Load
Floating Remote ON/OFF Pin
Note: Control Voltage Reference to Negative Input
www.echin.com.tw
Email: sales@echin.com.tw
2012/05
Version: 3
L115W(-RT) Series
ECHIN Technology Co., Ltd
Output Voltage Trim Functions setup:
Trim Up:
Trim Down:
Note:
Vadj
Vo
Unit
Input Fuse Selection Guide
: Adjusted Output Voltage
: Nominal Output Voltage
: VDC, KΩ
24VDC models
48VDC models
2500 mA Slow – Blow Type
1250 mA Slow – Blow Type
Characteristic Curve
〜
〜
Output
Power(%)
Derating Curve
Package Dimension
Front View
Recommend Footprint Details (Top View)
Grid: 0.1 inch / 2.54 mm
Dot(Drill Hole): ψ1.5 +0.2/-0 mm
Bottom View
Pin Functions
Pin No.
Single Output
Dual Output
1
2
3
4
5
6
+Vin
-Vin
+Vout
No Pin or Trim
-Vout
No Pin or Remote
+Vin
-Vin
+Vout
Common
-Vout
No Pin or Remote
Remote: Only for suffixed “-R” models
Trim : Only for suffixed “-T” models
Note:
All dimensions in inch [mm]
Tolerance :
XX.X± 0.01 [XX.X±0.25]
XX.XX± 0.005 [XX.XX±0.25]
www.echin.com.tw
Email: sales@echin.com.tw
Pin pitch tolerance ±0.01[±0.25]
Pin dimension tolerance ±0.004 [±0.1]
2012/05
Version: 3