Delta NC15 Series - Manuals

Page 2 - TECHNICAL SPECIFICATIONS; PARAMETER

NC12S15A_01102008 2 TECHNICAL SPECIFICATIONS (Ambient Temperature=25°C, minimum airflow=200LFM, nominal V in =12Vdc unless otherwise specified.) PARAMETER NOTES and CONDITIONS NC12S0A0V/H15 Min. Typ. Max. Units ABSOLUTE MAXIMUM RATINGS Input Voltage 14 Vdc Operating Temperature (Vertical) With appro...

Page 3 - ELECTRICAL CHARACTERISTICS CURVES; Converter efficiency vs. output current

NC12S15A_01102008 3 ELECTRICAL CHARACTERISTICS CURVES 0 10 20 30 40 50 60 70 80 90 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Output Current (A) Efficien cy (%) 10.2 12 13.8 0 10 20 30 40 50 60 70 80 90 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Output Current (A) Efficien cy (%) 10.2 12 13.8 Figure 1: Conver...

Page 6 - Typical transient response to step load change at

NC12S15A_01102008 6 ELECTRICAL CHARACTERISTICS CURVES Figure 19: Typical transient response to step load change at 10A/ μ S from 50% to 75% and 75% to 50% of Io_max at 12Vin, 0.9V out Figure 20: Typical transient response to step load change at 10A/ μ S from 50% to 75% and 75% to 50% of Io_max at 12...

Page 7 - DESIGN CONSIDERATIONS; disabled when; Block Diagram

NC12S15A_01102008 7 DESIGN CONSIDERATIONS FEATURES DESCRIPTIONS ENABLE (On/Off) The NC15 is a single phase and voltage mode controlledBuck topology. Block diagram of the converter is shown inFigure 23. The output can be trimmed in the range of0.9Vdc to 5.0Vdc by a resistor from Trim pin to Ground. T...

Page 8 - Rs values should not be less than 280; Over-Current and Short-Circuit Protection; Output Voltage; OPEN; Output Voltage Programming; Output voltage trim with voltage source; Rt is the resistor to be defined with the trim voltage (in K; Trimming Output Voltage; Example

NC12S15A_01102008 8 The NC06/NC15/NC20 module has a trim range of 0.9V to 5.0V. The trim resistor equation for the NC6A/NC15A/ NC20A is : FEATURES DESCRIPTIONS (CON.) Input Under-Voltage Lockout 9 . 0 1170 ) ( − = Ω Vout Rs The input under-voltage lockout prevents the converter from being damaged wh...

Page 9 - This output pin uses positive logic and is; Current Sink Capability; the Trim pin to the Ground for for margining; Input reflected ripple/ capacitor ripple current and; Paralleling

NC12S15A_01102008 9 FEATURES DESCRIPTIONS (CON.) Output Capacitance There is no output capacitor on the NC series modules.Hence, an external output capacitor is required for stableoperation. For NC15 modules, a n external 6.3V/680 μ F low ESR capacitor (for example, OSCON) is required for stable ope...

Page 10 - THERMAL CONSIDERATION; Thermal Testing Setup

NC12S15A_01102008 10 THERMAL CONSIDERATION Thermal management is an important part of the system design. To ensure proper, reliable operation, sufficient cooling of the power module is needed over the entire temperature range of the module. Convection cooling is usually the dominant mode of heat tra...

Page 13 - MECHANICAL DRAWING; VERTICAL HORIZONTAL

NC12S15A_01102008 13 MECHANICAL DRAWING VERTICAL HORIZONTAL

Page 14 - WARRANTY

NC12S15A_01102008 14 PART NUMBERING SYSTEM MODEL LIST Model Name Packaging Input Voltage Output Voltage Output Current Efficiency 12Vin @ 100% load NC12S0A0V15PNFA Vertical 10.2 ~ 13.8Vdc 0.9 V ~ 5.0Vdc 15A 91% (5.0V) NC12S0A0H15PNFA Horizontal 10.2 ~ 13.8Vdc 0.9 V ~ 5.0Vdc 15A 91% (5.0V) CONTACT: w...