V21
2
All Specifications Typical At Nominal Line, Full Load, and 25℃ Unless Otherwise Noted
INPUT SPECIFICATIONS: GENERAL SPECIFICATIONS:
Input Voltage Range....……………...............…………. 24V ................18 - 36V
Efficiency ..........................................………..…………............ See Table
48V ……….... 36 - 75V
Isolation Voltage ..................................……..………........ 2250 VDC min.
Input Surge Voltage (100ms max.) …………..….… 24V …... 50Vdc max.
Isolation Resistance ...........................….…….…….…..… 10
ohm min.
48V ....... 100Vdc max.
Isolation Capacitance ………………..……………………..…… 560pF typ.
Under Voltage Lockout ………..…. 24Vin power up ….…....…..……. 17V
Switching Frequency ............................……......................... 400KHz typ.
24Vin power down …..….…………. 16V
Operating Ambient Temperature Range ...…..……...….... -40 to +85℃ ℃
48Vin power up …………...….……. 34V
Derating, Above 71 ……………..…. Linearly to Zero Power at +100℃ ℃
48Vin power down ………………. 32.5V
Cooling ………………………………………………… Natural Convection
Input Filter ………………………………..………………………. Capacitive Type
Storage Temperature Range ...….............……....…....... -40 to +125℃ ℃
Positive Logic Remote on/off Control:
Humidity .................................................. 95% RH max. Non condensing
Logic Compatibility ……..….………….. CMOS or Open Collector TTL
MTBF …… MIL-STD-217F, GB, 25 , Full Load℃ ……..… 1200Khrs typ.
Module ON ………….…....…….. >+5.5VDC to 75Vdc or Open Circuit
Dimensions ......…….…….. 1.10x0.96x0.36 inches (27.9x24.4x9.1 mm)
Module OFF …..………………………………………..………. <1.2VDC
Structure ..….………………………… Non-potted With Open Frame Type
OUTPUT SPECIFICATIONS:
Weight ………………………………………………………………….. 8.8g
Voltage Accuracy …………………....………………......…..…..… ±1.5% max.
NOTE:
Transient Response: 25% Step Load Change .........…..................…… <500us
1. Measured from high line to low line.
Ripple and Noise 20MHz BW ………… Vo=3.3 & 5V ….… 75mV pk-pk max.
2. Measured from full load to min. load.
Vo=12 & 15V ... 100mV pk-pk max.
3. Suffix ”N” to the model number with negative logic remote on/off
Temperature Coefficient .......................….………......…….. ±0.03%/℃ max.
Module ON…………………………….………..….……. <1.2VDC
Short Circuit Protection ...................…....…………………..……….. Continuous
Module OFF …………... >+5.5VDC to 50VDC or Open Circuit
Line Regulation (note1) ..….………...…………………….………. ±0.2% max.
4. Suffix ”S” to the model number with SMD package.
Load Regulation (note2) ……………….........………….…..…….. ±0.2% max.
5. The output ripple and noise is measured with 10uF tantalum and 1uF
Over Voltage Protection ………………………….……… Zener or TVS Clamp
ceramic capacitor across output.
External Trim Adj. Range ………………………………….…..………….. ±10%
Current Limit ……………………………………. 110% - 140% Nominal Output
Start up time …………………………………….…….………..…..…... 8ms typ.
SIZE SB Dimensions :
0.96 [24.4]
0.400 [10.16]
0.400 [10.16]
All Dimmension in inches(mm)
Tolerances: x.xx in± 0.02 in (x.x mm ±0.5 mm)
x.xxx in±0.010 in (x.xx mm±0.25 mm)
0.080 [2.03]
0.300 [7.62]
0.200 [5.08]
1.10 [27.9]
0.800 [20.32]
0.15 [3.8]
THROUGH-HOLE PACKAGE
BOTTOM VIEW
126
5 4 3
0.36 [9.1]
0.098 [2.50]
0.182 [4.62]
0.145 [3.68]
SMD-PACKAGE
0.96 [24.4]
0.400 [10.16]
BOTTOM VIEW
0.800 [20.32]
1.10 [27.9]
0.400 [10.16]
0.15 [3.8]
5 4
0.300 [7.62]
0.080 [2.03]
0.200 [5.08]
6 12
0.040[1.02]
0.080[2.02]
30.182 [4.62]
0.098 [2.50]
0.36 [9.1]
PIN CONNECTION
Pin Function
4 Trim
3 +V Output
5 -V Output
6 Remote ON/OFF
2 -V Input
1 +V Input
EXTERNAL OUTPUT TRIM
10K Ohms
+Vout
TRIM
-Vout
+Vout
TRIM
-Vout
TRIMPOT
TRIM UP
TRIM DOWN
EC1SB Series Derating Curve
-40 8571
0.0
20.0
40.0
60.0
80.0
100.0
120.0
-40 -20 0 20 40 60 80 100
Ambient Temperature(
o
C)
Output Load(%)
Natural convection
100LFM