V30
EC7A SERIES
︳
10 WATT 2:1 INPUT RANGE
DC-DC CONVERTERS
FEATURES
* 10W Isolated Output
* DIP-24/SMD Metal Package
* Very High Efficiency up to 89%
* 2:1 Input Range
* Regulated Outputs
* PI Input Filter
* Continuous Short Circuit Protection
* No Tantalum Capacitor Inside
* Safety Meets IEC/EN/UL 62368-1
* UL60950-1 Approval
MODEL
NUMBER
EC7A-12S25
EC7A-12S33
EC7A-12S05
EC7A-12S12
EC7A-12S15
EC7A-12D12
EC7A-12D15
EC7A-24S25
EC7A-24S33
EC7A-24S05
EC7A-24S12
EC7A-24S15
EC7A-24D12
EC7A-24D15
EC7A-48S25
EC7A-48S33
EC7A-48S05
EC7A-48S12
EC7A-48S15
EC7A-48D12
EC7A-48D15
OUTPUT OUTPUT CURRENT
INPUT
VOLTAGE VOLTAGE
MIN.
MAX.
9-18 VDC
9-18 VDC
9-18 VDC
9-18 VDC
9-18 VDC
9-18 VDC
9-18 VDC
18-36VDC
18-36VDC
18-36VDC
18-36VDC
18-36VDC
18-36VDC
18-36VDC
36-75VDC
36-75VDC
36-75VDC
36-75VDC
36-75VDC
36-75VDC
36-75VDC
2.5 VDC
3.3 VDC
5 VDC
12 VDC
15 VDC
±12 VDC
±15 VDC
2.5 VDC
3.3 VDC
5 VDC
12 VDC
15 VDC
±12 VDC
±15 VDC
2.5 VDC
3.3 VDC
5 VDC
12 VDC
15 VDC
±12 VDC
±15 VDC
0 mA
0 mA
0 mA
0 mA
0 mA
0 mA
0 mA
0 mA
0 mA
0 mA
0 mA
0 mA
0 mA
0 mA
0 mA
0 mA
0 mA
0 mA
0 mA
0 mA
0 mA
3000 mA
3000 mA
2000 mA
835 mA
666 mA
±416 mA
±333 mA
3000 mA
3000 mA
2000 mA
835 mA
666 mA
±416 mA
±333 mA
3000 mA
3000 mA
2000 mA
835 mA
666 mA
±416 mA
±333 mA
NOTE: 1. Nominal Input Voltage 12, 24, 48VDC
1
INPUT CURRENT
NO LOAD
40 mA
50 mA
60 mA
40 mA
40 mA
30 mA
30 mA
30 mA
30 mA
30 mA
30 mA
30 mA
20 mA
20 mA
15 mA
15 mA
15 mA
15 mA
15 mA
10 mA
10 mA
% CAPACITOR
FULL LOAD EFF. LOAD MAX.
735 mA
971 mA
947 mA
949 mA
946 mA
956 mA
968 mA
368 mA
480 mA
473 mA
469 mA
473 mA
467 mA
478 mA
184 mA
243 mA
237 mA
235 mA
237 mA
236 mA
242 mA
85
85
88
88
88
87
86
85
86
88
89
88
89
87
85
85
88
89
88
88
86
3000uF
3000uF
2000uF
835uF
666uF
416uF
333uF
3000uF
3000uF
2000uF
835uF
666uF
416uF
333uF
3000uF
3000uF
2000uF
835uF
666uF
416uF
333uF
V30
SPECIFICATIONS
All Specifications Typical at Nominal Line, Full Load, and 25℃ Unless Otherwise Noted
INPUT SPECIFICATIONS:
GENERAL SPECIFICATIONS:
Input Voltage Range ….……………….........…… 12V ….................. 9-18V
24V ………........... 18-36V
48V …..………..... 36-75V
Input Surge Voltage (100ms max.) …………...… 12V …........... 25Vdc max.
24V …........... 50Vdc max.
48V …......... 100Vdc max.
Efficiency…...........................................................…..………See Table
Isolation Voltage …..............….. Input/Output …..…..…. 1500VDC min.
Isolation Resistance …......................……………........……. 109 ohm min.
Isolation Capacitance…………………..……….…………..…1000pF typ.
Switching Frequency ….................…….............……………. 380KHz typ.
Operating Ambient Temperature ………..………..…… -40℃ to +85℃
De-rating, Above 71℃ …………….…… Linearly to Zero Power at 100℃
Case Temperature(note4) ………….……………………….. 100℃ max.
Cooling ………………………………………………… Natural Convection
Storage Temperature ……………….……....………..... -40℃ to +125℃
Humidity ................................................. 95% RH max. Non Condensing
MTBF ……. MIL-HDBK-217F, GB, 25℃, Full Load ……… 1150Khrs typ.
Dimensions …… DIP .……1.25x0.80x0.40 inches (31.8x20.3x10.2 mm)
Under Voltage Lockout ……….….. 12Vin power up ..……………….……. 8.8V
12Vin power down ……………………. 8V
24Vin power up …….………….……. 17V
24Vin power down ………….………. 16V
48Vin power up …….….…....….……. 34V
48Vin power down ……………………. 32V
Input Filter …………………………………………..………..….……… PI Type
OUTPUT SPECIFICATIONS:
SMD …. 1.25x0.80x0.45 inches (31.8x20.3x11.4 mm)
Voltage Accuracy ……………...................................…………....... ±1.5% max.
Voltage Balance (Dual) ……………………………………………… ±2.0% max.
Case Material ……..… Black Coated Copper with Non-Conductive Base
Weight ………………………………………………………………… 18.4g
Transient Response: 75% - 100% Step Load Change
NOTE:
Error Band ………..……………………….…….. ±5% Vout Nominal
Recovery Time …………………….………………….…….. < 300us
Ripple & Noise, 20MHz BW…….. Single ….…….…………. 75mV pk-pk, max.
Dual …….…….…….. 100mV pk-pk, max.
Temperature Coefficient …..........…………………..……....…….. ±0.05%/°C
Line Regulation (note1) …….…. Single …….........................…. ±0.2% max.
Dual ……............................…. ±0.5% max.
Load Regulation (note2) ……..… Single … DIP±0.5% max., SMD±1.0% max.
Dual ……............................…. ±1.0% max.
Output Short Circuit Protection …......................................….…. Continuous
Over voltage Protection (Zener Diode Clamp, Single Output Only)
2.5V, 3.3V………………………………..………….3.9Vdc typ.
5V ……..………. 6.2Vdc typ., 12V……………..….15Vdc typ.
15V………..….…………………..……………….….18Vdc typ.
Start up Time ………. 24(48)S25(33) ….…….………………..…... 120ms typ.
24(48)S05(12) ………………………..…... ...60ms typ.
Others ………….…….…………...…..…... ….8ms typ.
1. Measured from high line to low line.
2. Measured from full load to 10% load.
3. Suffix “S” to the model number with SMD packages.
4. Maximum case temperature under any operating condition should
not be exceeded 100℃.
Typical Derating curve for Natural Convection
120%
-40
LOAD(%)
20%
0%
-40
-20
1.25
[31.8]
0.18
[4.5]
0.80
[20.3]
1.00
[25.4]
Single Output
0.02
[0.5]
SMD
DIP
SMD
NP
NC
NP
NC
-V Input
4,5
NP
NC
9
NP
NC
0.04
[1.0]
10
NP
NC
11
0.15
[3.8]
0.40
[10.2]
0.80
[20.3]
NOTE:Pin Size is 0.02±0.002 Inch (0.5±0.05 mm)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
Dual Output
DIP
-V Input
NP
9 10 11 12
0.08
[2.0]
0.100
[2.54]
0.45
0.600
[15.24]
VIEW
2,3
[11.4]
11
TOP
0.43
14
16 15 14 13
1,24
1 2 3 4 5
NC
Common
NP
NC
-V Output
NC
12
NP
NC
NP
NC
13
NP
+V Output
NP
NC
14
15
16
1.25
[31.8]
100
PIN CONNECTION
Pin
[10.9]
9
0.200
[5.08]
2
3
16
80
Vo=3.3V
Others
40%
SMD Packages
24 23 22 21 20
BOTTOM
VIEW
0
20
40
60
Ambient Temperature(oC)
60%
SEE NOTE
23
22
71
80%
Case A Dimensions:
DIP Packages
65
100%
20,21
22,23
+V Output
NP
-V Output
-V Output
NP
NC
+V Input
+V Output
NP
NC
Common
NP
NC
+V Input
* NC-NO CONNECTION WITH PIN
* NP-NO PIN
2
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