V29
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
% CAPACITOR
MODEL INPUT OUTPUT
EFF. LOAD MAX.
NUMBER VOLTAGE VOLTAGE
MIN. MAX. NO LOAD FULL LOAD
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
1 V29
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.
9
48V ....... 36-75V Isolation Resistance ............................... 10 ohm min.
Input Surge Voltage (100ms max.) ... 12V ........... 25Vdc max. Iso la ti o n Ca p a ci ta n ce .....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)
SMD . 1.25x0.80x0.45 inches(31.8x20.3x11.4 mm)
OUTPUT SPECIFICATIONS:
Case Material .. Black Coated Copper with Non-Conductive Base
Voltage Accuracy .......................................... 1.5% max.
Weight 18.4g
Voltage Balance(Dual) 2.0% max.
Transient Response: 75% - 100% Step Load Change
NOTE:
1. Measured from high line to low line.
Error Band ..... 5% Vout Nominal
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.
Typical Derating curve for Natural Convection
Load Regulation (note2) .. Single DIP0.5% max., SMD1.0% max.
120%
Dual ............................. 1.0% max.
-40 65
71
Output Short Circuit Protection ........................................ Continuous
100%
Over voltage Protection (Zener Diode Clamp, Single Output Only)
80%
2.5V, 3.3V...3.9Vdc typ.
60%
5V ... 6.2Vdc typ., 12V...15Vdc typ.
Vo=3.3V
15V.......18Vdc typ.
40%
Others
Start up time . 24(48)S25(33) ....... 120ms typ.
20%
24(48)S05(12) ..... ...60ms typ.
Others .......... .8ms typ. 0%
-40 -20 0 20 40 60 80 100
o
Case A Dimensions:
Ambient Temperature( C)
NOTE:Pin Size is 0.020.002 Inch (0.50.05 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
PIN CONNECTION
Single Output
Dual Output
DIP Packages SMD Packages Pin
DIP SMD DIP SMD
1,24 NC NP NC
NP
SEE NOTE
2,3 -V Input -V Input
TOP
4,5 NP
NP NC NC
VIEW
9 NP NC
Common
BOTTOM
10 NP NC NP NC
VIEW
11 NC -V Output
12
NP NC NP NC
13 +V Output NP NC
NP
14 +V Output
+V Output
15 NP -V Output NP NC
16 -V Output Common
20,21 NP NC NP NC
+V Input
22,23 +V Input
* NC-NO CONNECTION WITH PIN
* NP-NO PIN
2
LOAD(%)