E100 Series
1W, Single Output
Ultra-Miniature SIP
DC/DC Converters
Electrical Specifications
Input
Key Features: Parameter Conditions Min. Typ. Max. Units
· 1W Output Power 5 VDC Input 4.5 5.0 5.5
12 VDC Input 10.8 12.0 13.2
· Ultra-Miniature SIP Case Input Voltage Range VDC
24 VDC Input 21.6 24.0 26.4
· 1,000 VDC Isolation 48 VDC Input 44.0 48.0 52.0
· >2 MHour MTBF Reverse Polarity Input Current 0.3 A
· 27 Standard Models Input Filter Internal Capacitor
· LOW COST! Output
Parameter Conditions Min.
Typ. Max. Units
Output Voltage Accuracy ±1.0 ±3.0 %
Line Regulation For Vin Change of 1% ±1.2 ±1.5 %
Load Regulation (Note 2) See Model Selection Guide
Ripple & Noise (20 MHz) 100 mV P - P
Output Power Protection 120 %
Temperature Coefficient ±0.01 ±0.02 %/°C
Output Short Circuit Momentary (0.5 Sec.)
General
Parameter Conditions Min. Typ. Max. Units
Isolation Voltage 60 Seconds 1,000 VDC
Isolation Test Voltage Flash Tested For 1 Sec 1,100 VDC
Isolation Resistance 1,000 VDC 1,000 M
Isolation Capacitance 100 kHz, 1V 60 100 pF
Switching Frequency 50 90 110 kHz
Environmental
Parameter Conditions Min. Typ. Max. Units
Operating Temperature Range Ambient
-40 +25 +75 °C
Operating Temperature Range Case
-25 +25 +90 °C
Storage Temperature Range -55 +125 °C
Cooling Free Air Convection
Humidity RH, Non-condensing 95 %
Physical
Case Size (5V & 12V Input Models) 0.46 x 0.24 x 0.40 Inches (11.7 x 6.1 x 10.2 mm)
Case Size (24V & 48V Input Models) 0.46 x 0.29 x 0.40 Inches (11.7 x 7.5 x 10.2 mm)
Case Material Non-Conductive Black Plastic
Weight (5V & 12V Input Models) 0.05 Oz (1.3g)
Weight (24V & 48V Input Models) 0.06 Oz (1.8g)
MicroPower Direct Reliability Specifications
232 Tosca Drive
Stoughton, MA 02072 Parameter Conditions Min. Typ. Max. Units
USA MTBF MIL HDBK 217F, 25°C, Gnd Benign 4.4 MHours
Absolute Maximum Ratings
Parameter Conditions Min. Typ. Max. Units
5 VDC Input -0.7 9.0
12 VDC Input -0.7 18.0
Input Voltage Surge (1 Sec) VDC
24 VDC Input -0.7 30.0
48 VDC Input -0.7 55.0
Lead Temperature 1.5 mm From Case For 10 Sec 260 °C
Internal Power Dissipation All Models 650 mW
Specifications typical @ +25°C, nominal input voltage & rated output current, unless otherwise noted. Specifications subject to change without notice.
CompuMess Elektronik GmbH · Lise-Meitner-Str.1 · 85716 Unterschleissheim
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Model Selection Guide
Input Output Load Fuse Rating
Model Efficiency
Voltage (VDC) Current (mA) Voltage Current Current Regulation Slow-Blow
Number (%, Typ)
Nominal Range Full-Load No-Load (VDC) (mA, Max) (mA, Min) (% Max) (mA)
E101 5 4.5 - 5.5 257 20 5.0 200.0 4.0 11 79 500
E102 5 4.5 - 5.5 257 20 9.0 110.0 2.0 8 78 500
E103 5 4.5 - 5.5 262 20 12.0 100.0 1.5 7 78 500
E104 5 4.5 - 5.5 250 20 15.0 66.0 1.0 6 80 500
E111 12 10.8 - 13.2 107 16 5.0 200.0 4.0 9 79 200
E112 12 10.8 - 13.2 107 16 9.0 110.0 2.0 5 79 200
E113 12 10.8 - 13.2 106 16 12.0 100.0 1.5 5 79 200
E114 12 10.8 - 13.2 105 16 15.0 66.0 1.0 4 80 200
E121 24 21.6 - 26.4 55 7 5.0 200.0 4.0 8 74 100
E122 24 21.6 - 26.4 55 7 9.0 110.0 2.0 5 76 100
E123 24 21.6 - 26.4 53 7 12.0 100.0 1.5 4 79 100
E124 24 21.6 - 26.4 53 7 15.0 66.0 1.0 4 79 100
E131 48 44.0 - 52.0 29 6 5.0 200.0 4.0 8 72 135
E132 48 44.0 - 52.0 28 6 9.0 110.0 2.0 8 75 135
E133 48 44.0 - 52.0 34 6 12.0 100.0 1.5 8 75 135
E134 48 44.0 - 52.0 29 6 15.0 66.0 1.0 8 74 135
Notes:
1. Exceeding the absolute maximum ratings of the Derating Curve - 5V & !5V Output Models
unit could cause damage. These are not continu- 100
ous operating ratings.
2. Output load regulation is specified for a load 80
Output Power %
change of 20% to 100%.
3. When measuring output ripple, it is recom- 60
mended that an external 0.33 µF ceramic
capacitor be placed from the +Vout pin to the
-Vout pin for single output units and from each 40
output to common for dual output units.
4. Operation at no-load will not damage these units. 20
However, they may not meet all specifications.
5. The converter should be connected to a low ac- 0
impedance source. An input source with a highly -40 -20 0 15 30 60 65 70 75 80 85 90 95 100
inductive impedance may affect the stability of the
converter. Ambient Temperature (°C)
In applications where the converter output load- Free Air 100 LFM 200 LFM 400 LFM
ing is high and input power is supplied over long
lines, it may be necessary to use a capacitor on Derating Curve - All Other Outputs
the input to insure start-up. 100
In this case, it is recommended that a low Equiva-
lent Series Resistance (ESR <1.0 at 100 kHz)
capacitor be mounted close to the converter. For 80
5VDC input units, a 1.5 µF capacitor should be
Output Power %
used; for 12 VDC input units a 1.0 µF; and for 24
VDC & 48 VDC input units a 0.47 µF. 60
7. It is recommended that a fuse be used on the
input of a power supply for protection. See the 40
table above for the correct rating.
20
0
-40 -20 0 10 30 60 65 70 75 80 85 90 95 100
Ambient Temperature ( C)
Free Air 100 LFM 200 LFM 400 LFM
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CompuMess Elektronik GmbH · Lise-Meitner-Str.1 · 85716 · Fax: (781) 344 - 8481 Page 2
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E100 Series
1W, Ultra-Miniature SIP, DC/DC Converters
Efficiency vs Input Voltage Efficiency vs Output Load
100 90
90 80
Efficiency %
80 70
Efficiency %
70 60
60 50
50 40
Low Nom High
Input Voltage (V)
30
10 20 40 60 80 100
Load Current (%)
Thermal Measurement
Position of air velocity
probe and Air
thermocouple Flow
2.0 In
(50.8 mm)
0.6 In
(15.0 mm)
E100
A number of factors affect the thermal performance of the converter, including mounting orientation,
component spacing, airflow over the unit, etc. To avoid exceeding the maximum rated temperature of
internal components, the case temperature of the converter must be kept below 90°C.
The derating curves given in this datasheet have been derived using a converter operating at full load
and nominal input. Temperature measurements have been made as shown above.
MicroPower Direct
Capacitive Load
232 Tosca Drive Models (Vout) 5V 9V 12V 15V Units
Stoughton, MA 02072
Max. Capacitive Load 33 33 33 33 µF
USA
Having excessive capacitive load in a power supply application may cause start up prob-
lems. If the specified capacitive load is exceeded, the inrush current of the circuit at start
up may exceed the capability of the converter. This could cause a number of problems
including high output ripple, low output voltage and/or damage to the unit.
CompuMess Elektronik GmbH · Lise-Meitner-Str.1 · 85716 Unterschleissheim
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Output Noise
When using this series in a noise sensitive
+Vin +Vout application, it is recommended that an external
capacitor be connected as shown in the draw-
Load
ing at left.
For the E100, a low ESR 1.0 µF capacitor
E100 1.0 µF connected as close as possible to the load is
recommended.
-Vin -Vout
For applications where very low noise is
required, a simple LC filter will give good
results. Typical values for an LC filter would be
4.7 µH and 4.7 µF.
4.7 µH
+Vin +Vout
Load
E100 4.7µF
-Vin -Vout
Mechanical Dimensions
Side View Pin Connections
Pin Function
1 -Vin
PD 0.40
2
3
+Vin
-Vout
(10.2) 4 +Vout
0.02
(0.5) E101 Notes:
· All dimensions are typical in inches (mm)
· Tolerance x.xx = ±0.01 (±0.25)
· Pin 1 is marked by a "dot" or indentation on the side of
the unit
· Leads are tin plated for improved solderability.
0.126 Flammability
(3.2) The E100 converter is encapsulated in a low theral resis-
0.10 0.075 tance molding compound that has excellent resistance/
(2.54) (1.90) electrical characteristics over a wide temperature range or
in high humidity environments.
The encapsulant and unit case are both rated to UL 94V-0
0.07 flammability specifications.
0.02 (1.80)
(0.5)
3
1 2 4
"T"
0.01 T= 0.24 (6.1) for 5V & 12V input models
(0.25) T= 0.28 (7.1) for 24V & 48V input models
0.45 (11.5)
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CompuMess Elektronik GmbH · Lise-Meitner-Str.1 · (781) 344 - 8226 · Fax: (781) 344 - Page 4
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