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PDF UM3321 Data sheet ( Hoja de datos )
| Número de pieza | UM3321 | |
| Descripción | (UM3300 Series) 10 Watt DC-DC Converters | |
| Fabricantes | Universal Microelectronic | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de UM3321 (archivo pdf) en la parte inferior de esta página. Total 2 Páginas | ||
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UM3300 SERIES
10 Watt DC-DC Converters
♦ 2:1 Input Range
♦ 25 Watts/Cubic Inch
♦ Efficiency to 82%
♦ Short circuit protection
SPECIFICATIONS
All specifications are typical at nominal line, full load and
25°C unless otherwise noted.
INPUT SPECIFICATIONS
Input Voltage Range, 24V .……………………..……. 18-36V
48V ……………….…………… 36-75V
Input Filter ………………………………………..... Pi Network
OUTPUT SPECIFICATIONS
Voltage Accuracy, Single Output …….……..……. ±2% max.
Transient response1, ±1% Error Band ………… <500 u sec.
Ripple and Noise, 20MHz BW2 ..…………. 100mV P-P max.
Temperature Coefficient …………………... ±0.02%/°C max.
Short Circuit Protection .………..……………….. Continuous
Line Regulation3 ………………….…..………….. ±0.2% max.
Load Regulation4 …………………..…………….. ±0.5% max.
Minimum Load5 ……………………..…………… 10% Io max.
GENERAL SPECIFICATIONS
Efficiency .…………………………………………... See Table
Isolation Voltage …………………………….. 1500 VDC min.
Isolation Resistance .……………………..….. 108 ohms min.
Switching Frequency .………….……………….. 400KHz typ.
Operating Temperature Range …………… -25°C to +100°C
Derating, 50°C to 100°C ………………….…... See Note 6
Case Temperature7 ……………………………... 100°C max.
Cooling .………..…………………….…. Free-Air Convection.
Storage Temperature Range ………….…... -40°C to+105°C
Case Material8 ………………….. Black-Coated Copper with
Non-Conductive Base.
Dimensions Case A ……………... 1.25 x 0.80 x 0.40 inches
(31.75 x 20.32 x 10.16mm)
Weight ..…………………………………………….…...…. 18g
NOTES:
1. di/dt=0.1A/1uS, Vin= nominal line,Tc=25°C; load change
=0.5 Io max. to 0.75 Io max. and 0.75 Io max. to 0.5 Io
max.
2. Measured with 0.1uF ceramic cap. Connected to the
output pins.
3. Measured from low line to high line.
4. Measured from full load to 1/4 full load.
5. The converter required a minimum 10% loading on the
output. Operation below 10% load conditions will not
damage these devices. However, they may not meet all
listed spec.
6. Output Power (%)
100
0 Ambient
-25 50 100 Temperature(°C)
7. Maximum case temperature under any operating
condition should not be exceed 100°C.
8. Metal case only.
UNIVERSAL
3,27TH RD., TAICHUNG INDUSTRIAL PARK,
MICROELECTRONICS
TAICHUNG, TAIWAN, R.O.C.
TEL: 886-4-23590096 FAX: 886-4-23590129
www.DataSheet4U.com
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