︳
FEATURES
* 5-6W Isolated Output
* 24-Pin DIP Package
* Efficiency to 87%
* 2:1 Input Range
* Regulated Outputs
* Pi Input Filter
* Continuous Short Circuit Protection
* Meet EMI EN55022 class A (“-E” model)
* No Tantalum Capacitor inside (“-E” model)
* Wide Operating Temperature Range (“-E” model)
MODEL
INPUT
OUTPUT
(1)
(2)
NUMBER VOLTAGE VOLTAGE
OUTPUT
CURRENT
“-E”
EC4A SERIES
5-6 WATT 2:1 INPUT RANGE
DC-DC CONVERTERS
INPUT CURRENT
NO LOAD
“-E”
FULL LOAD
“-E”
% EFF.
(3)
“-E”
Cap.
Load
EC4A01
EC4A02
EC4A03
EC4A04
EC4A05
EC4A06
EC4A07
EC4A11
EC4A12
EC4A13
EC4A14
EC4A15
EC4A16
EC4A17
EC4A21
EC4A22
EC4A23
EC4A24
EC4A25
EC4A26
EC4A27
NOTE:
9-18 VDC
9-18 VDC
9-18 VDC
5 VDC 1000 mA 1000 mA 7.5 mA 7.5 mA 541 mA 514 mA 77
12 VDC
15 VDC
470 mA
400 mA
500 mA 7.5 mA 10 mA 573 mA 595 mA 82
400 mA 7.5 mA 15 mA 625 mA 588 mA 80
81
84
85
85
85
81
77
83
86
87
86
87
82
79
83
87
87
87
87
83
79
4700uF
4700uF
4700uF
2200uF
2200uF
2200uF
4700uF
4700uF
4700uF
4700uF
2200uF
2200uF
2200uF
4700uF
4700uF
4700uF
4700uF
2200uF
2200uF
2200uF
4700uF
9-18 VDC ±12 VDC ±230 mA ±250 mA 12 mA 12 mA 554 mA 588 mA 83
9-18 VDC ±15 VDC ±190 mA ±200 mA 12 mA 18 mA 556 mA 588 mA 81
9-18 VDC
9-18 VDC
18-36 VDC
18-36 VDC
18-36 VDC
±5 VDC ±500 mA ±500 mA 12 mA 12 mA 541 mA 514 mA 77
3.3 VDC 1000 mA 1200 mA 7.5 mA 7.5 mA 382 mA 429 mA 72
5 VDC 1000 mA 1000 mA
12 VDC
15 VDC
470 mA
400 mA
500 mA
400 mA
5 mA
5 mA
5 mA
5 mA 260 mA 251 mA 80
8 mA 280 mA 291 mA 84
8 mA 298 mA 287 mA 84
8 mA 280 mA 291 mA 82
8 mA 260 mA 254 mA 80
5 mA 186 mA 209 mA 74
3 mA 132 mA 126 mA 79
6 mA 142 mA 144 mA 83
6 mA 154 mA 144 mA 81
6 mA 142 mA 144 mA 81
6 mA 147 mA 144 mA 81
5 mA 130 mA 126 mA 80
2 mA
93 mA 104 mA 74
18-36 VDC ±12 VDC ±230 mA ±250 mA 7.5 mA
18-36 VDC
18-36 VDC
36-72 VDC
36-72 VDC
36-72 VDC
±5 VDC ±500 mA ±500 mA 7.5 mA
3.3 VDC 1000 mA 1200 mA
5 VDC 1000 mA 1000 mA
12 VDC
15 VDC
470 mA
400 mA
500 mA
400 mA
5 mA
2 mA
2 mA
2 mA
3 mA
3 mA
3 mA
2 mA
18-36 VDC ±15 VDC ±190 mA ±200 mA 7.5 mA 10 mA 293 mA 287 mA 81
36-72 VDC ±12 VDC ±230 mA ±250 mA
36-72 VDC ±15 VDC ±190 mA ±200 mA
36-72 VDC
36-72 VDC
±5 VDC ±500 mA ±500 mA
3.3 VDC 1000 mA 1200 mA
1. Suffix “-E” of the models are high efficiency and wide operating temperature version.
2. Nominal Input Voltage is 12, 24 or 48 VDC.
3. Typical value at nominal input voltage and full load.
1
SPECIFICATIONS
All Specifications Typical At Nominal Line, Full Load, and 25
℃
Unless Otherwise Noted
INPUT SPECIFICATIONS:
Input Voltage Range ....…………..........….... 12V .............................. 9-18V
24V ............................ 18-36V
48V ............................ 36-72V
Input Surge Voltage (100ms max.) ………… 12V …….….......... 25Vdc max.
24V ....................... 50Vdc max.
48V ..................... 100Vdc max.
Input Filter ………………………………………………….…….……..... Pi Type
GENERAL SPECIFICATIONS:
Efficiency ................................................................................. See Table
Isolation Voltage:
500 VDC min. ………….…………………………… Standard Models
3K VDC min. ... (Non-Conductive Black Plastic Only) …… Suffix “H” Models
1.5K VDC min. ………….………………………… Suffix “HM” Models
9
Isolation Resistance .....................................................…… 10 ohm min.
Isolation Capacitance…………………..…………………… 250pF Typ.
Switching Frequency ...................................................... 100KHz, min.
Operating Ambient Temperature Range .......................... -25℃ to +71℃
“-E” models: -40℃ to +85℃ with Derating
Power de-rating Curve ……………………………………….. see Figure1
Case Temperature (Note 4) … Plastic/Copper case... 95℃/100℃ max.
Cooling ……………………………………………….. Natural Convection
Storage Temperature Range ………....….......……........ -40℃ to +100℃
Humidity .................................................. 95% RH max. Non condensing
MTBF ………. MIL-STD-217F ..……..………………………… T.B.D. hrs
Dimensions …….. DIP…..… 1.25×0.80x0.40 inches(31.8x20.3×10.2mm)
SMD ..… 1.25×0.80x0.45 inches(31.8x20.3×11.4mm)
Case Material:
Standard Models ………….…………… Non-Conductive Black Plastic
Suffix “M” Models .. Black Coated Copper with Non-conductive Base
Suffix “S” Models …….……………………..…………… SMD package
Weight …………………………………………………………………... 12.5g
Figure1.Typical Derating curve for Natural Convection
OUTPUT SPECIFICATIONS:
Voltage Accuracy .......................................................................... ±2.0% max.
Voltage Balance (Dual) .................................................................. ±1.0% max.
Temperature Coefficient …………………………………………… ±0.05%/℃
Ripple & Noise, 20MHz BW (Note 5) ……. 3.3V/5V ….…… 100mV p-p, max
12V/15V ………… 1% p-p max.
Short Circuit Protection ……………………………………………… Continuous
Line Regulation ……...… Single/Dual (Note 1) ….……………. ±0.5% max.
Load Regulation …….… Single (Note 2) ..….…......……….... ±0.5% max.
Dual (Note 3) ……….…………………±1.0% max.
Start up time …………………………………….………………..…... 5 ms max.
NOTE:
1. Measured From High Line to Low Line
2. Measured From Full Load to 10% Load
3. Measured From Full Load to 1/4 Load
4. Maximum case temperature under any operating condition should
not exceed 95℃(Plastic Case),100℃(Copper Case)
5. The output noise is measured with 0.1uF MLCC across for SMD
package
120%
100%
80%
LO AD(%)
60%
40%
P lastic Case
Copper Case
-E Version
-40
100
-40
71
80
Case A Dimensions:
20%
NOTE:Pin Size is 0.02 ±0.002Inch (0.5±0.05mm)DIA
All Dimensions In Inches (mm)
Tolerances
Inches: X.XX= ±0.02 , X.XXX= ±0.010
Millimeters: X.X= ±0.5 , X.XX=±0.25
0%
-40
-20
0
20
40
60
o
Ambient Temperature( C)
80
100
CASE AS
PIN CONNECTION
SEE NOTE
500 VDC
Pin
Single Output
DIP
SMD
+V Input
NC
NC
NP
NP
NP
NC
NC
NC
Dual Output
DIP
SMD
+V Input
-V Output
Common
NP
NP
NP
NC
NC
NC
Pin
1,24
2,3
4,5
9
10,15
11
12,13
14
16
20,21
22,23
NP
1.5K & 3K VDC
Single Output
DIP
NP
SMD
NC
Dual Output
DIP
NP
SMD
NC
TOP
BOTTOM
VIEW
1,24
2,23
3,22
4
5
9
10,15
11,14
12,13
16
20,21
VIEW
-V Input
NP
NC
NC
NC
NC
NC
-V Input
NP
NC
Common
NC
-V Output
NP
NC
-V Output
+V Output
-V Input
NP
NP
NC
NC
Common
+V Output
-V Input
NP
NP
NC
NC
+V Output
-V Output
NP
NC
+V Output
Common
NP
NC
+V Input
+V Input
* NP-NO PIN
* NC-NO CONNECTION WITH PIN
2
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