V29
1
︳
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
* CE Mark Meets 2004/108/EC
* UL60950-1 Approval
OUTPUT CURRENT
INPUT CURRENT
MODEL
NUMBER
INPUT
VOLTAGE
OUTPUT
VOLTAGE
MIN. MAX. NO LOAD
FULL LOAD
%
EFF.
CAPACITOR
LOAD MAX.
EC7A-12S25 9-18 VDC
2.5 VDC 0 mA 3000 mA
40 mA 735 mA 85 3000uF
EC7A-12S33 9-18 VDC
3.3 VDC 0 mA 3000 mA
50 mA 971 mA 85 3000uF
EC7A-12S05 9-18 VDC
5 VDC 0 mA 2000 mA
60 mA 947 mA 88 2000uF
EC7A-12S12 9-18 VDC
12 VDC 0 mA 835 mA
40 mA 949 mA 88 835uF
EC7A-12S15 9-18 VDC
15 VDC 0 mA 666 mA
40 mA 946 mA 88 666uF
EC7A-12D12 9-18 VDC
±12 VDC 0 mA ±416 mA
30 mA 956 mA 87 416uF
EC7A-12D15 9-18 VDC
±15 VDC 0 mA ±333 mA
30 mA 968 mA 86 333uF
EC7A-24S25 18-36VDC
2.5 VDC 0 mA 3000 mA
30 mA 368 mA 85 3000uF
EC7A-24S33 18-36VDC
3.3 VDC 0 mA 3000 mA
30 mA 480 mA 86 3000uF
EC7A-24S05 18-36VDC
5 VDC 0 mA 2000 mA
30 mA 473 mA 88 2000uF
EC7A-24S12 18-36VDC
12 VDC 0 mA 835 mA
30 mA 469 mA 89 835uF
EC7A-24S15 18-36VDC
15 VDC 0 mA 666 mA
30 mA 473 mA 88 666uF
EC7A-24D12 18-36VDC
±12 VDC 0 mA ±416 mA
20 mA 467 mA 89 416uF
EC7A-24D15 18-36VDC
±15 VDC 0 mA ±333 mA
20 mA 478 mA 87 333uF
EC7A-48S25 36-75VDC
2.5 VDC 0 mA 3000 mA
15 mA 184 mA 85 3000uF
EC7A-48S33 36-75VDC
3.3 VDC 0 mA 3000 mA
15 mA 243 mA 85 3000uF
EC7A-48S05 36-75VDC
5 VDC 0 mA 2000 mA
15 mA 237 mA 88 2000uF
EC7A-48S12 36-75VDC
12 VDC 0 mA 835 mA
15 mA 235 mA 89 835uF
EC7A-48S15 36-75VDC
15 VDC 0 mA 666 mA
15 mA 237 mA 88 666uF
EC7A-48D12 36-75VDC
±12 VDC 0 mA ±416 mA
10 mA 236 mA 88 416uF
EC7A-48D15 36-75VDC
±15 VDC 0 mA ±333 mA
10 mA 242 mA 86 333uF
NOTE: 1. Nominal Input Voltage 12, 24, 48VDC
V29
2
SPECIFICATIONS
All Specifications Typical At Nominal Line, Full Load, and 25℃ Unless Otherwise Noted
INPUT SPECIFICATIONS: GENERAL SPECIFICATIONS:
Input Voltage Range ….……………….........…… 12V ….................. 9-18V
Efficiency…...........................................................…..………See Table
24V ………........... 18-36V
Isolation Voltage …..............….. Input/Output …..…..…. 1500VDC min.
48V …..………..... 36-75V
Isolation Resistance …......................……………........……. 10
9
ohm min.
Input Surge Voltage (100ms max.) …………...… 12V …........... 25Vdc max.
Isolation Capacitance…………………..……….…………..…1000pF typ.
24V …........... 50Vdc max.
Switching Frequency ….................…….............……………. 380KHz typ.
48V …......... 100Vdc max.
Operating Ambient Temperature ………..………..…… -40℃ to +85℃
Under voltage lockout ………..….. 12Vin power up ………………….……. 8.8V
De-rating, Above 71℃ …………….…… Linearly to Zero power at 100℃
12Vin power down ……………………. 8V
Case Temperature(note4) ………….……………………….. 100℃ max.
24Vin power up …….………….……. 17V
Cooling ………………………………………………… Natural Convection
24Vin power down ………….………. 16V
Storage Temperature ……………….……....………..... -40℃ to +125℃
48Vin power up …….….…....….……. 34V
Humidity .................................................. 95% RH max. Non condensing
48Vin power down ……………………. 32V
MTBF ………. MIL-STD-217F, GB, 25℃, Full Load ………… 1150K hrs
Input Filter …………………………………………..………..….……… PI Type
Dimensions …… DIP .……1.25x0.80x0.40 inches(31.8x20.3x10.2 mm)
OUTPUT SPECIFICATIONS:
SMD …. 1.25x0.80x0.45 inches(31.8x20.3x11.4 mm)
Voltage Accuracy ……………...................................………….......
±1.5% max.
Case Material ……..… Black Coated Copper with Non-Conductive Base
Voltage Balance(Dual) ……………………………………………… ±2.0% max.
Weight ………………………………………………………………… 18.4g
Transient Response: 75% - 100% Step Load Change
NOTE:
Error Band ………..……………………….…….. ±5% Vout Nominal
1. Measured from high line to low line.
Recovery Time …………………….………………….…….. < 300us
2. Measured from full load to 10% load.
Ripple & Noise, 20MHz BW…….. Single ….…….…………. 75mV pk-pk, max.
3. Suffix “S” to the model number with SMD packages.
Dual …….…….…….. 100mV pk-pk, max.
4. Maximum case temperature under any operating condition should
Temperature Coefficient …..........…………………..……....…….. ±0.05%/°C
not be exceeded 100℃.
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.
Case A Dimensions:
BO T T O M
VIEW
SEE NOTE
* NP-NO PIN
* NC-NO C ONNECTION WITH PIN
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
SMD Packages
TOP
VIEW
PIN CONNECT ION
NC
-V Input
+V Output
-V Output
+V Input
Pin Single O utput
DIP SMD
1,24
2,3
10
11
12
14
9
22,23
16
4,5
20,21
NP NC
NP NC
NP NC
NP NC
NP NC
NP NC
-V Output
Common
-V Input
+V Output
Common
+V Input
Dual Output
DIP SMD
NP NC
NP NC
NP NC
NP NC
NP
-V Output
NP NC
15
NP
+V Output
NP NC
13
DIP Packages
NP NC
Typical Derating curve for Natural Convection
65 71
-40
0%
20%
40%
60%
80%
100%
120%
-40 -20 0 20 40 60 80 100
Ambient Temperature(
o
C)
LOAD(%)
Vo=3.3V
Others
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
Cincon:
EC7A-24S25 EC7A-24S33 EC7A-24S05 EC7A-24S12 EC7A-48S25 EC7A-48S33 EC7A-48S05 EC7A-48S12
EC7A-24D12S EC7A-24S33S EC7A-24D12 EC7A-12S12 EC7A-12S12S EC7A-48S15 EC7A-24S15 EC7A-
24D15S EC7A-48S25S EC7A-12S25S EC7A-48S12S EC7A-12S05 EC7A-48S15S EC7A-48D15 EC7A-48D12S
EC7A-48S05S EC7A-12D12S EC7A-12D12 EC7A-48D15S EC7A-12S25 EC7A-12S33 EC7A-24S12S EC7A-
12S05S EC7A-24S15S EC7A-24S25S EC7A-48S33S EC7A-12D15 EC7A-12D15S EC7A-24S05S EC7A-12S33S
EC7A-24D15 EC7A-48D12 EC7A-12S15 EC7A-12S15S