V25
EC3A SERIES
3 WATT 2:1 INPUT RANGE
DC-DC CONVERTERS
FEATURES
* 3W Isolated Output
* 24-Pin DIP Package
* Efficiency to 82%
* 2:1 Input Range
* Regulated Outputs
* Pi Input Filter
* Continuous Short Circuit Protection
* UL60950-1 Approval for H/HM Versions only
INPUT CURRENT
MODEL INPUT OUTPUT OUTPUT
(2) CAPACITOR
% EFF.
(1)
LOAD MAX.
NUMBER VOLTAGE VOLTAGE CURRENT
NO LOAD FULL LOAD
EC3A01 4.5-6 VDC 5 VDC 600 mA
15 mA 800 mA 75 2200uF
EC3A02 12 VDC 250 mA
4.5-6 VDC 759 mA 79
15 mA 2200uF
EC3A03 4.5-6 VDC 15 VDC 200 mA
779 mA 77
15 mA 2200uF
EC3A04 5 VDC 300 mA
779 mA 77
4.5-6 VDC 25 mA 1000uF
EC3A05 4.5-6 VDC 12 VDC 125 mA
25 mA 789 mA 76
1000uF
EC3A06 15 VDC 100 mA
4.5-6 VDC 25 mA 800 mA 75
1000uF
EC3A07 4.5-6 VDC 3.3 VDC 600 mA
15 mA 582 mA 68
2200uF
EC3A11 9-18 VDC 5 VDC 600 mA
7.5 mA 325 mA 77
2200uF
EC3A12 9-18 VDC 12 VDC 250 mA
7.5 mA 313 mA 80
2200uF
EC3A13 9-18 VDC 15 VDC 200 mA
7.5 mA 316 mA 79
2200uF
EC3A14 9-18 VDC 5 VDC 300 mA
12 mA 325 mA 77
1000uF
EC3A15 9-18 VDC 12 VDC 125 mA
12 mA 325 mA 77
1000uF
EC3A16 9-18 VDC 15 VDC 100 mA
12 mA 316 mA 79
1000uF
EC3A17 9-18 VDC 3.3 VDC 600 mA
7.5 mA 229 mA 72
2200uF
EC3A21 18-36 VDC 5 VDC 600 mA
5 mA 158 mA 79
2200uF
EC3A22 18-36 VDC 12 VDC 250 mA
5 mA 156 mA 80
2200uF
EC3A23 18-36 VDC 15 VDC 200 mA
5 mA 152 mA 82
2200uF
EC3A24 18-36 VDC 5 VDC 300 mA
7.5 mA 162 mA 77
1000uF
EC3A25 18-36 VDC 12 VDC 125 mA
7.5 mA 158 mA 79
1000uF
EC3A26 18-36 VDC 15 VDC 100 mA
7.5 mA 154 mA 81
1000uF
EC3A27 18-36 VDC 3.3 VDC 600 mA
5 mA 111 mA 74
2200uF
EC3A31 36-72 VDC 5 VDC 600 mA
2 mA 78 mA 79
2200uF
EC3A32 36-72 VDC 12 VDC 250 mA
2 mA 78 mA 80
2200uF
EC3A33 36-72 VDC 15 VDC 200 mA
2 mA 78 mA 80
2200uF
EC3A34 36-72 VDC 5 VDC 300 mA
3 mA 80 mA 78
1000uF
EC3A35 36-72 VDC 12 VDC 125 mA
3 mA 80 mA 78
1000uF
EC3A36 36-72 VDC 15 VDC 100 mA
3 mA 80 mA 78
1000uF
EC3A37 36-72 VDC 3.3 VDC 600 mA
3 mA 57 mA 72
2200uF
NOTE:
1. Nominal input voltage is 5, 12, 24 or 48VDC.
2. Typical value at nominal input voltage and full load.
1 V25
SPECIFICATIONS
All Specifications Typical At Nominal Line, Full Load, and 25 Unless Otherwise Noted
INPUT SPECIFICATIONS: GENERAL SPECIFICATIONS:
Input Voltage Range ............... 5V .............................4.5-6V Efficiency .............................................................................. See Table
12V ..................... 9-18V Isolation Voltage:
24V ..................... 18-36V 500 VDC min. . Standard Models
48V ................... 36-72V
3K VDC min. (Non-Conductive Black Plastic Only) .. Suffix H Models
Input Surge Voltage (100ms max.) . 5V ........ 10Vdc max.
1.5K VDC min. .... Suffix HM Models
9
12V ................. 25Vdc max. Isolation Resistance ..................................................... 10 ohm min.
24V ................. 50Vdc max. Switching Frequency ........................................................ 100KHz min.
48V ............... 100Vdc max.
Operating Ambient Temperature Range ...................... -25 to +71
Input Filter ... Pi Type Power de-rating Curve .... see Figure1
Case Temperature (note4) Plastic/Copper case 95/100 max.
OUTPUT SPECIFICATIONS:
Voltage Accuracy ...................................................................... 2.0% max. Cooling .. Natural Convection
Voltage Balance (Dual) .............................................................. 1.0% max. Storage Temperature Range .......... -40 to +100
/ Humidity .................................................. 95% RH max. Non condensing
Temperature Coefficient .. 0.05%
Ripple & Noise, 20MHz BW . 3.3V/5V . 100mV pk-pk, max. MTBF . MIL-STD-217F .... 2000Khrs typ.
12V/15V .. 1% pk-pk max. Dimensions DIP .. 1.250.80x0.40 inches(31.8x20.310.2 mm)
Short Circuit Protection Continuous
SMD 1.250.80x0.45 inches(31.8x20.311.4 mm)
Line Regulation Single/Dual (note1) . 0.5% max.
Case Material:
Load Regulation .. Single (note2) ..... 0.5% max. Standard Models . Non-Conductive Black Plastic
Dual (note3) ... 1.0% max. Suffix M Models .. Black Coated Copper with Non-conductive Base
Weight . 12.5g
NOTE:
Figure1.Typical Derating curve for Natural Convection
1. Measured from high line to low line.
120%
2. Measured from full load to 10% load.
71
-25
100%
3. Measured from full load to 1/4 load.
4. Maximum case temperature under any operating condition should 80%
not be exceed 95(Plastic Case), 100(Copper Case).
60%
Plastic Case
40%
100
Copper Case
20%
95
0%
-25 0 25 50 75 100
o
Ambient Temperature( C)
Case A Dimensions:
NOTE:Pin Size is 0.02 0.002 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
CASE AS
PIN CONNECTION
500 VDC 1.5K & 3K VDC
SEE NOTE
Single Output Dual Output Single Output Dual Output
Pin Pin
DIP SMD DIP SMD DIP SMD DIP SMD
+V Input
TOP 1,24 +V Input 1,24 NP NC NP NC
2,23 NC 2,3 -V Input -V Input
VIEW -V Output
BOTTOM
VIEW
3,22 NC Common 4,5 NP NC NP NC
4 NP NP 9
NC NC NC Common
5 NP NP 10,15 NC NC
NC NC
9 NP NC NP NC 11 NC -V Output
10,15 -V Output Common 12,13 NP NC NP NC
11,14 +V Output +V Output 14 +V Output +V Output
12,13 -V Input -V Input 16 -V Output Common
NP NC NP NC 20,21 NP NC NP NC
16
20,21 NP NC NP NC 22,23 +V Input +V Input
* NP-NO PIN
* NC-NO CONNECTION WITH PIN
2
LOAD(%)