V24
EC4BU SERIES
10 WATT 2:1 INPUT
DC-DC CONVERTERS
FEATURES
* 10W Isolated Output
* Efficiency to 87%
* 2:1 Input Range
* Regulated Outputs
* Fixed Switching Frequency
* Input Under Voltage Protection
* Over Current Protection
* Conductive EMI Meets EN55022 Class A
* Continuous Short Circuit Protection
* Without Tantalum Capacitors Inside
* CE Mark Meets 2004/108/EC
* Safety Meets UL60950-1, EN60950-1 and IEC60950-1
OUTPUT CURRENT INPUT CURRENT
MODEL INPUT OUTPUT % CAPACITOR
NUMBER VOLTAGE VOLTAGE EFF. LOAD MAX.
MIN. MAX. NO LOAD FULL LOAD
EC4BU-05S33 3.3 VDC 0 mA 2500 mA 120 mA 1897 mA 87
4.7-9 VDC 2470uF
EC4BU-05S05 5 VDC 0 mA 2000 mA 120 mA 2299 mA 87
4.7-9 VDC 2000uF
EC4BU-05S12 4.7-9 VDC 12 VDC 0 mA 833 mA 50 mA 2298 mA 87 940uF
EC4BU-05S15 15 VDC 0 mA 666 mA 50 mA 2297 mA 87
4.7-9 VDC 690uF
EC4BU-05D05 5 VDC 0 mA 1000 mA 50 mA 2353 mA 85 1000uF
4.7-9 VDC
EC4BU-05D12 12 VDC 0 mA 416 mA 50 mA 2295 mA 87 440uF
4.7-9 VDC
EC4BU-05D15 15 VDC 0 mA 333 mA 50 mA 2297 mA 87 330uF
4.7-9 VDC
EC4BU-12S33 9-18 VDC 3.3 VDC 0 mA 2500 mA 30 mA 838 mA 82
2470uF
EC4BU-12S05 9-18 VDC 5 VDC 0 mA 2000 mA 30 mA 980 mA 85 2000uF
EC4BU-12S12 9-18 VDC 12 VDC 0 mA 833 mA 35 mA 957 mA 87
940uF
EC4BU-12S15 9-18 VDC 15 VDC 0 mA 666 mA 35 mA 956 mA 87
690uF
EC4BU-12D05 9-18 VDC 5 VDC 0 mA 1000 mA 45 mA 85 1000uF
980 mA
EC4BU-12D12 9-18 VDC 12 VDC 0 mA 416 mA 45 mA 87 440uF
957 mA
EC4BU-12D15 9-18 VDC 15 VDC 0 mA 333 mA 45 mA 87 330uF
957 mA
EC4BU-24S33 18-36 VDC 3.3 VDC 0 mA 2500 mA 25 mA 419 mA 82 2470uF
EC4BU-24S05 18-36 VDC 5 VDC 0 mA 2000 mA 25 mA 490 mA 85
2000uF
EC4BU-24S12 18-36 VDC 12 VDC 0 mA 833 mA 25 mA 478 mA 87
940uF
EC4BU-24S15 18-36 VDC 15 VDC 0 mA 666 mA 25 mA 478 mA 87
690uF
EC4BU-24D05 18-36 VDC 5 VDC 0 mA 1000 mA 25 mA 85 1000uF
490 mA
EC4BU-24D12 18-36 VDC 12 VDC 0 mA 416 mA 25 mA 87 440uF
478 mA
EC4BU-24D15 18-36 VDC 15 VDC 0 mA 333 mA 25 mA 478 mA 87 330uF
EC4BU-48S33 36-75 VDC 3.3 VDC 0 mA 2500 mA 20 mA 212 mA 81
2470uF
EC4BU-48S05 36-75 VDC 5 VDC 0 mA 2000 mA 20 mA 245 mA 85
2000uF
EC4BU-48S12 36-75 VDC 12 VDC 0 mA 833 mA 20 mA 239 mA 87
940uF
EC4BU-48S15 36-75 VDC 15 VDC 0 mA 666 mA 20 mA 239 mA 87
690uF
EC4BU-48D05 36-75 VDC 5 VDC 0 mA 1000 mA 85 1000uF
20 mA 245 mA
EC4BU-48D12 36-75 VDC 12 VDC 0 mA 416 mA 87 440uF
20 mA 239 mA
EC4BU-48D15 36-75 VDC 15 VDC 0 mA 333 mA 87 330uF
20 mA 239 mA
NOTE: 1. Nominal Input Voltage 5, 12, 24 or 48 VDC
1 V24
SPECIFICATIONS
All Specifications Typical At Nominal Line, Full Load, and 25 Unless Otherwise Noted
INPUT SPECIFICATIONS: GENERAL SPECIFICATIONS:
Input Voltage Range .................... 5V .................. 4.7 - 9V Efficiency ......................................................... See Table
12V .................. 9 - 18V Isolation Voltage ......................................... 1500 VDC min.
9
24V ..... 18 36V Isolation Resistance ......................... 10 ohm min.
48V ..... 36 75V Isolation Capacitance .... 1000pF typ.
Under Voltage Lockout ... 5Vin power up: 4.4V .. power down: 4.2V Switching Frequency ..................................................... 350KHz typ.
12Vin power up: 8.4V .. power down: 8V EMI/RFI ..... Conductive EMI Meets EN55022 Class A
24Vin power up: 17V ... power down: 16V Case Grounding . Connect Case to -Vin with Decoupling Y Cap.
48Vin power up: 34V ... power down: 32V Operating Ambient Temperature Range ............ -40 to +85
Input Surge Voltage (100mS max.) ... 5Vin .. 12Vdc max. Derating, Above 85 .... Linearly to Zero Power at +105
12Vin ... 25Vdc max. Case Temperature (Note 4) .. 105
24Vin ... 50Vdc max. Cooling Natural Convection
48Vin ... 100Vdc max. Storage Temperature Range .......................... -55 to +125
Input Filter ........ PI Type Humidity .. 95% RH max. Non condensing
MTBF MIL-STD-217-F, GB, 25, Full Load .... 1200Khrs
OUTPUT SPECIFICATIONS:
Voltage Accuracy .............. 1.5% max. Dimensions ......................... 2.00x1.00x0.4 inches (50.8x25.4x10.2 mm)
Voltage Balance (Dual) ....... 2.0% max. Case Material Black Coated Copper with Non-Conductive Base
Transient Response: 25% Step Load Change ....................... <500us Weight . 35g
Ripple and Noise, 20MHz BW (Measured with 0.1uF MLCC) 100mV pk-pk max.
NOTE:
/ 1. Measured from high line to low line.
Temperature Coefficient ............................ 0.03% max.
Short Circuit Protection ........................... Continuous 2. Measured from full load to min. load.
Line Regulation (note1) ........ Single ... 0.2% max. 3. Maximum case temperature under any operating condition should
Dual ...... 0.5% max. Not be exceeded 105.
Load Regulation (note2) .... Single .............. 0.2% max.
Typical Derating curve for Natural Convection
Dual ...... 1.0% max.
120%
Cross Regulation (Dual output) Load cross variation 10%/100% . 5% max.
-40
85
Over Voltage Protection . Zener or TVS Clamp
100%
81
Current Limit . 110% - 140% Nominal Output
80%
Start up time .. 20ms max.
OPTION: 60%
1. Suffix T to the model number with remote positive on/off control:
OTHERS
40%
Logic Compatibility .. CMOS or open collector TTL, referenced to -Vin
XXS33,S05,D05
Module on ... >5.5VDC to 75VDC or open circuit
20%
Module off .. <1.2VDC
105
0%
2. Suffix A to the model number with output voltage adjustable
-40 -20 0 20 40 60 80 100 120
external trim adj. range10%, single output models only.
Ambient Temperature()
CASE B Dimensions:
NOTE: Pin Size is 0.040.004 Inch (1.00.1 mm)DIA
All Dimensions In Inches (mm)
Tolerances Inches: X.XX= 0.04 , X.XXX= 0.010
Millimeters: X.X= 1.0 , X.XX=0.25
0.300 0.200
0.40
[7.62] [5.08] [10.2]
PIN CONNECTION
6 2 1
Pin Function
1 +Input
2 -Input
BOTTOM
+V Output
3
VIEW
Common/NP/Trim(Option)
4
5 -V Output
5 4 3
6 NP/Remote(Option)
*NP-NO PIN ON SINGLE OUTPUT
0.22 min
0.400 0.400
[5.6]
[10.16] [10.16]
0.40
[10.2]
1.00
[25.4]
2
2.00
[50.8]
0.800 0.60
[20.32] [15.2]
0.04
[1.0]
LOAD(%)