V17
EC3SB SERIES
15 WATT 2:1 INPUT
DC-DC CONVERTERS
FEATURES
* 15W Isolated Output
* Efficiency to 90%
* 2:1 Input Rang
* Regulated Outputs
* Fixed Switching Frequency
* Input Under Voltage Protection
* Over Current Protection
* Remote On/Off
* 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
EC3SB -12S33 9-18 VDC 3.3 VDC 0 mA 4000 mA 90 mA 1280 mA 85 4000uF
EC3SB -12S05 9-18 VDC 5 VDC 0 mA 3000 mA 85 mA 1453 mA 88 3000uF
EC3SB -12S12 9-18 VDC 12 VDC 0 mA 1250 mA 70 mA 1420 mA 88 1330uF
EC3SB -12S15 9-18 VDC 15 VDC 0 mA 1000 mA 70 mA 1420 mA 88 1000uF
EC3SB-12D05 9-18 VDC 5 VDC 0 mA 1500 mA 45 mA 85 1470uF
1470 mA
EC3SB-12D12 9-18 VDC 12 VDC 0 mA 625 mA 45 mA 87 660uF
1436 mA
EC3SB-12D15 9-18 VDC 15 VDC 0 mA 500 mA 45 mA 88 550uF
1420 mA
EC3SB -24S33 18-36 VDC 3.3 VDC 0 mA 4000 mA 50 mA 640 mA 86 4000uF
EC3SB -24S05 18-36 VDC 5 VDC 0 mA 3000 mA 50 mA 718 mA 89 3000uF
EC3SB -24S12 18-36 VDC 12 VDC 0 mA 1250 mA 20 mA 695 mA 90 1330uF
EC3SB -24S15 18-36 VDC 15 VDC 0 mA 1000 mA 20 mA 695 mA 90 1000uF
EC3SB-24D05 18-36 VDC 5 VDC 0 mA 1500 mA 25 mA 86 1470uF
726 mA
EC3SB-24D12 18-36 VDC 12 VDC 0 mA 625 mA 25 mA 88 660uF
710 mA
EC3SB-24D15 18-36 VDC 15 VDC 0 mA 500 mA 25 mA 89 550uF
702 mA
EC3SB -48S33 36-75 VDC 3.3 VDC 0 mA 4000 mA 25 mA 320 mA 86 4000uF
EC3SB -48S05 36-75 VDC 5 VDC 0 mA 3000 mA 30 mA 359 mA 88 3000uF
EC3SB -48S12 36-75 VDC 12 VDC 0 mA 1250 mA 20 mA 347 mA 90 1330uF
EC3SB -48S15 36-75 VDC 15 VDC 0 mA 1000 mA 20 mA 351 mA 90 1000uF
EC3SB-48D05 36-75 VDC 5 VDC 0 mA 1500 mA 86 1470uF
20 mA 363 mA
EC3SB-48D12 36-75 VDC 12 VDC 0 mA 625 mA 88 660uF
20 mA 355 mA
EC3SB-48D15 36-75 VDC 15 VDC 0 mA 500 mA 89 550uF
20 mA 351 mA
NOTE: 1. Nominal Input Voltage 12, 24 or 48 VDC
1 V17
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 ............................................ 1500 VDC min.
9
48V ..... 36 75V Isolation Resistance ....................... 10 ohm min.
Under voltage lockout .. 12Vin power up: 8.8V . power down: 8V Isolation Capacitance .... 1000pF typ.
24Vin power up: 17V ..... power down: 16V Switching Frequency .................................................. 350KHz typ.
48Vin power up: 34V . power down: 32V Operating Ambient Temperature Range ............ -40 to +85
Input Surge Voltage (100mS max.) EC3SB-12Sxx/12DXX ... 25Vdc max. Derating, Above 71 ... Linearly to Zero Power at +105
EC3SB-24Sxx/24DXX .. 50Vdc max. Case Temperature (note 4) .. 105
EC3SB-48Sxx/48DXX 100Vdc max. Cooling Natural Convection
Input Filter Standard .. PI Type Storage Temperature Range .......................... -55 to +125
SMD . LC Type Humidity .. 95% RH max. Non condensing
Positive Logic Remote on/off Control: MTBF MIL-STD-217-F, GB, 25, Full Load . 1200Khrs typ.
Logic Compatibility .. CMOS or Open Collector TTL Dimensions ...... DIP ........ 1.00x1.00x0.4 inches (25.4x25.4x10.2 mm)
Module On >+5.5V to 75VDC or Open Circuit SMD 1.00x1.00x0.36 inches (25.4 x 25.4 x 9.2 mm)
Module Off .... <1.2VDC Case Material .. Black Coated Copper with Non-Conductive Base
Weight . 18g
OUTPUT SPECIFICATIONS:
Voltage Accuracy ........... 1.5% max.
NOTE:
1. Measured from high line to low line.
Voltage Balance (Dual) ... 2.0% max.
Transient Response: 25% Step Load Change ........................ <500us 2. Measured from full load to min. load.
Ripple and Noise, 20MHz BW (note 3) .. 50mV pk-pk max. 3. The output ripple and noise is measured with 10uF tantalum and 1uF
SMD ........ 120mV pk-pk max. ceramic capacitor across output.
4. Maximum case temperature under any operating condition should
Temperature Coefficient ............................. 0.03%/
Short Circuit Protection ........................... Continuous not be exceeded 105.
Line Regulation (note 1) ..... Single .. DIP0.2% max., SMD0.3% max. 5. Suffix S to the model number with SMD packages.
Dual ... 0.5% max.
Load Regulation (note 2)...... Single ... DIP0.2% max., SMD0.5% max.
Dual .................................... 1.0% max.
Cross Regulation (Dual output) Load cross variation 10%/100% . 5% max.
Over Voltage Protection . Zener or TVS Clamp
External Trim Adj. Range ..... 10%
Current Limit . 110% - 140% Nominal Output
Start up time .... 20ms max.
SIZE SB Dimensions:
NOTE:Pin Size is 0.040.004 Inch (1.00.1 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- PACKAGE
THROUGH-HOLE PACKAGE
1.22
[30.99]
0.40
0.300 0.200
[7.62] [5.08] [10.2]
PIN CONNECTION
0.100
6 5
[2.54]
Function
2-0.400
Pin
[10.16]
6 Single
2 1 Dual
2
TOP 0.800
1.00
4
[20.32] [25.4] 1 +Input +Input
VIEW
BOTTOM 1
0.40
VIEW
2 -Input -Input
[10.2]
5 4 3 3
3 +V Output +V Output
1.00 0.10
4 Trim Common
[25.4] [2.54]
0.400 0.400
min.
0.22 0.40
[10.16] [10.16] 0.110
-V Output -V Output
5
[5.6] [10.2]
[2.79]
1.00
6 Remote Remote
[25.4]
0.36
[9.2]
0.020
[0.51]
0.015
Typical Derating curve for Natural Convection
[0.38] 0.055
[1.40]
120%
EXTERNAL OUTPUT TRIM
71
-40
100%
+Vout +Vout
80%
TRIM DOWN
60%
10K Ohms
40% Natural Convection
TRIM TRIM
TRIMPOT
20%
105
TRIM UP
0%
-Vout -Vout
-40 -20 0 20 40 60 80 100
o
Ambient Temperature( C)
2
LOAD(%)
1.00
[25.4]
0.800 0.10
[2.5]
[20.32]
0.04
[1.0]
0.20
[5.1]