Datenblatt-Suchmaschine für elektronische Bauteile |
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KDC_NDTD Datenblatt(PDF) 3 Page - Murata Manufacturing Co., Ltd. |
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KDC_NDTD Datenblatt(HTML) 3 Page - Murata Manufacturing Co., Ltd. |
3 / 7 page KDC_NDTD_E03 Page 3 of 7 Technical enquiries - email: mk@murata-ps.com, tel: +44 (0)1908 615232 www.murata-ps.com NDTD Series Isolated 3W Wide Input Dual Output DC/DC Converters TERMINOLOGY LINE REGULATION The percentage change in output voltage between low intput voltage and high intput voltage, measured with fixed output load i.e. a 5V part with an output voltage of 5.05V @ high input voltage and 5.03V @ low input voltage would have a line regulation of 0.4%. Where VOUT (Nominal Input V) is 5V. APPLICATION NOTES Recommended Input & Output Capacitors Although these converters will work without external capacitors, they are necessary in order to guarantee the full parametric performance over the full line and load range. All parts have been tested and characterized using the following values and test circuit. Input Voltage CIN Output Voltage COUT 5V, 12V 100μF, 25V (0.25Ω at 100kHz) 3.3V, 5V 100μF, 25V (0.25Ω at 100kHz) 24V, 48V 10μF, 100V (1.5Ω at 100kHz) 12V, 15V 47μF, 25V (0.4Ω at 100kHz) Test circuit Reflected Ripple Current Measurement C1 = 220μF, ESR < 0.1Ω at 100kHz Cross Regulation Load regulation is at its best when the positive and negative loads are balanced. When the loads are asymmetric, the negative output is not as tightly regulated as the positive out- put. To meet ripple specification a total minimum load of 25% full load is required, however, the NDTD can be used with much lighter loading at the expense of increased ripple. A small load is required on the negative output of 150mW to ensure the maximum negative output voltage is not exceeded. Line regulation = x100% VOUT (Low Input V) - VOUT (High Input V) VOUT (Nominal Input V) NDTD Supply +VIN Supply -VIN 12μH Current Probe C1 CIN +VIN -VIN Load +VOUT -VOUT Load COUT COUT OV NDTD COUT CIN - VIN + VIN + VOUT Supply + VIN Supply - VIN - VOUT OV COUT |
Ähnliche Teilenummer - KDC_NDTD |
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Ähnliche Beschreibung - KDC_NDTD |
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