Delta-electronics Delphi ND Series Manuel d'utilisateur Page 1

PRELIMINARY DATASHEET DS_ND12S50A_07172008 FEATURES  High efficiency: 92.5% @ 12Vin, 3.3V/50A out y Size: 61.0x31.8x10.2mm (2.40”×1.25”×0.40”) 

DS_ND12S10A_07172008 10 THERMAL CUREVES ` Figure 32: Temperature measurement location* The allowed maximum hot spot temperature is defined at 124℃ N

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DS_ND12S10A_07172008 12PART NUMBERING SYSTEM MODEL LIST Model Name Packaging Input Voltage Output Voltage Output Current Efficiency 12Vin @ 100%

DS_ND12S10A_07172008 2TECHNICAL SPECIFICATIONS (Ambient Temperature=25°C, minimum airflow=200LFM, nominal Vin=12Vdc unless otherwise specified.) PARA

DS_ND12S10A_07172008 3ELECTRICAL CHARACTERISTICS CURVES 7075808590955.01 10 15 20 25 30 35 40 45 50OUTPUT CURRENT (A)EFFICIENCY (%)10.2 12.0 13.8 70

DS_ND12S10A_07172008 4ELECTRICAL CHARACTERISTICS CURVES (CON.) Figure 7: Output ripple & noise at 12Vin, 0.9V/50A out Figure 8: Output ripple

DS_ND12S10A_07172008 5ELECTRICAL CHARACTERISTICS CURVES (CON.) Figure 13: Turn on delay time at 12Vin, 0.9V/50A out Ch1: Vout Ch4: Vin Figure 14:

DS_ND12S10A_07172008 6 Figure 19: Typical transient response to step load change at 10A/μS from 50%to 75% and 75% to 50 of Io, max at 12Vin, 1.5V o

DS_ND12S10A_07172008 7 DESIGN CONSIDERATIONS The ND 50A uses two phase and voltage mode controlled buck topology. The output can be trimmed in the

DS_ND12S10A_07172008 8FEATURES DESCRIPTIONS (CON.) Input Under-Voltage Lockout The input under-voltage lockout prevents the converter from being da

DS_ND12S10A_07172008 9Output Capacitance an external output capacitor(min 680uF) is required for stable operation. Voltage Margining Adjustment Ou