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EC3SAW SERIES
3 WATT 4:1 INPUT
DC-DC CONVERTERS
FEATURES
* 3W Isolated Output
* Compact SIP-8 Package
* Efficiency to 85%
* 4:1 Input Range
* Regulated Outputs
* Remote On/Off Control
* 1500VDC Isolation
* Continuous Short Circuit Protection
* Input Under Voltage Protection
* Without Tantalum Capacitors inside
NOTE: 1. Nominal Input Voltage 24 or 48 VDC
OUTPUT CURRENT INPUT CURRENT MODEL
NUMBER INPUT
VOLTAGE OUTPUT
VOLTAGE MIN. MAX. NO LOAD FULL LOAD EFF.
(%) Capacitor
Load max
EC3SAW-24S33P 9-36 VDC 3.3VDC 0 mA 700 mA 4 mA 122 mA 79 1800uF
EC3SAW-24S05P 9-36 VDC 5VDC 0 mA 600 mA 4 mA 154 mA 81 1000uF
EC3SAW-24S12P 9-36 VDC 12VDC 0 mA 250 mA 8 mA 150 mA 84 220uF
EC3SAW-24S15P 9-36 VDC 15VDC 0 mA 200 mA 8 mA 150 mA 84 120uF
EC3SAW-24D05P 9-36 VDC ±5VDC 0 mA ±300 mA 8 mA 154 mA 81 ±470uF
EC3SAW-24D12P 9-36 VDC ±12VDC 0 mA ±125 mA 12 mA 150 mA 84 ±100uF
EC3SAW-24D15P 9-36 VDC ±15VDC 0 mA ±100 mA 12 mA 151 mA 83 ±47uF
EC3SAW-48S33P 18-75 VDC 3.3VDC 0 mA 700 mA 3 mA 61 mA 79 1800uF
EC3SAW-48S05P 18-75 VDC 5VDC 0 mA 600 mA 3 mA 76 mA 82 1000uF
EC3SAW-48S12P 18-75 VDC 12VDC 0 mA 250 mA 5 mA 74 mA 85 220uF
EC3SAW-48S15P 18-75 VDC 15VDC 0 mA 200 mA 5 mA 75 mA 84 120uF
EC3SAW-48D05P 18-75 VDC ±5VDC 0 mA ±300 mA 5 mA 76 mA 82 ±470uF
EC3SAW-48D12P 18-75 VDC ±12VDC 0 mA ±125 mA 10 mA 75 mA 84 ±100uF
EC3SAW-48D15P 18-75 VDC ±15VDC 0 mA ±100 mA 10mA 75 mA 83 ±47uF
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SPECIFICATIONS
All Specifications Typical At Nominal Line, Full Load, and 25℃ Unless Otherwise Noted
INPUT SPECIFICATIONS: GENERAL SPECIFICATIONS:
Input Voltage Range....……………..........….... 24V ...................... 9-36V Efficiency..............................................................…..……...See Table
48V ……..………… 18-75V Isolation Voltage ..........……………………....……..…. 1500VDC min.
Input Surge Voltage (100ms max.) ………….….… 24V ….............. 50Vdc max Isolation Resistance .........................…...............……. 109ohm min.
48V .............. 100Vdc max. Isolation Capacitance…………………..…………………..……500pF Typ.
Under-Voltage Protection : Switching Frequency ......................….............…….... 100KHz min.
24Vin Power up ……………………....………..... 7.5 VDC max Operating Ambient Temperature……………..…... -40℃ to +85℃
Power down ……….………....……………. 6 VDC min Power de-rating Curve…… ……………………………………..see Figure1
48Vin Power up ……………………....………...... 15 VDC max De-rating, Above 71℃ ………………… Linearly to Zero power at 100℃
Power down ………………………..………. 12 VDC min Case Temperature (Note3)………………………………….. 100℃ max.
Input Filter ………………………………………………..….………... Capacitive Cooling…………………………………….………….Natural Convection
Remote on/off control : Storage Temperature ………………....….......……........ -55℃ to +125℃
Module On ………………….……………..………. Open Circuit Humidity....................................................95% RH max. Non condensing
Module Off ………………………..……….……..…... < 1.2VDC MTBF ………. MIL-STD-217F, GB ...……………………………T.B .D. hrs
Module Off (input idle current) ………….………..… 1mA max. EMI ............... Conductive EMI Meet EN55022 Class A & Class B(Note5)
OUTPUT SPECIFICATIONS: Dimensions …………..…0.86×0.36x0.44 inches(21.80x9.20×11.10 mm)
Voltage Accuracy ..........................................……….......... ±1.5% max. Case Material ……………………………… Non-Conductive Black Plastic
Voltage Balance(Dual) …………………………………………….... ±1.0% max. Weight…………………………………………….……………………...4.8g
Cross regulation(Dual)(Note4)…Asymmetrical load 25%/100%......±5.0% max
Transient Response: 25% Step Load Change NOTE :
Error Band ……………………………………….. ±6% Vout nominal 1. Measured From High Line to Low Line
Recovery Time ………….…………………………….…….. < 500us 2. Measured From Full Load to 10% Load
Ripple & Noise, 20MHz BW …………………………..…….. 50mV pk-pk, max. 3. Maximum case temperature under any operating condition should
Temperature Coefficient....................……….....….......…..... ±0.03%/°C not be exceeded 100℃.
Line Regulation (Note1) .…….………………….......................…. ±0.5% max. 4. For asymmetric loading, Both channels must be at 25% load or more
Load Regulation (Note2) ……..……… Single …….........…............ ±0.5% max. 5. The EC3SAW series meet EN55022 Class A & Class B with external
Dual ………….………..….. ±1.0% max. C-L filter before the input pins to the converter.(see application note )
Output Short Circuit Protection .........................................….…. Continuous
Start up time …………………………………….………………..…... 5ms max
CASE SA DIMENSIONS:
Bottom View
PIN CONNECTION
Pin Single
1
2
3
5
-Vin
+Vin
CTRL
NC
All Dimensions In Inches(mm)
X.XX±0.02 X.X±0.5
0.86 [21.8]
0.10 [2.5]
0.70 [17.8]
0.08 [2.0]
0.02 [0.5]
0.44[11.1]
0.16 [4.1]
0.02 [0.5]
0.01 [0.3]
0.14[3.5]
0.36[9.2]
Pin ±0.002 ±0.05
Tolerances : Inches millimeters
Dual
6
7
8
+Vo
-Vo
NC
-Vin
+Vin
CTRL
NC
+Vo
Common
-Vo
123 5678
Typical Derat i ng curve for Natural Convec t i on
71
100
-40
0%
20%
40%
60%
80%
100%
120%
-40 -20 0 20 40 60 80 100
Ambi ent Temperat ure(oC)
LOAD(%)
Natural
Convection
