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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 appropriate air flow and derating, see Figs 33 0 130 °C
Operating Temperature (Horizontal) With appropriate air flow and derating, see Figs 39 0 125 °C
Storage Temperature -40 125 °C
Input/Output Isolation Voltage Non-isolated NA V
INPUT CHARACTERISTICS
Operating Input Voltage 10.2 12.0 13.8 V
Input Under-Voltage Lockout
Turn-On Voltage Threshold 9.0 V
Turn-Off Voltage Threshold 7.5 V
Lockout Hysteresis Voltage 1.5 V
Maximum Input Current 100% Load, 10.2Vin, 5.0Vout 8.1 A
No-Load Input Current Vin=12V, Vout=0.9V 65 mA
Off Converter Input Current Remote OFF 9 mA
Input Reflected-Ripple Current Refer to Figure 31. 150 mA
Input Ripple Rejection 120Hz 45 dB
OUTPUT CHARACTERISTICS
Output Voltage Adjustment Range 0.9 5.0 V
Output Voltage Set Point With a 1.0% trim resistor -2.5 +2.5 %
Output Voltage Regulation
Over Load Io=Io_min to Io_max -1.0 +1.0 %
Over Line Vin=Vin_min to Vin_max -0.2 +0.2 %
Output Voltage Ripple and Noise 5Hz to 20MHz bandwidth
Peak-to-Peak Full Load, 100nF ceramic, 10µF tantalum 50 mV
RMS Full Load, 100nF ceramic, 10µF tantalum 20 mV
Output Current Range 0 15 A
Output Voltage Over-shoot at Start-up Vin=12V, Turn ON 1 %
Output Voltage Under-shoot at Power-Off Vin=12V, Turn OFF 100 mV
Output DC Current-Limit Inception Hiccup mode 16 A
Output Short-Circuit Current Hiccup mode
DYNAMIC CHARACTERISTICS
Output Dynamic Load Response 12Vin, 100nF ceramic, 10µF tantalum load cap, 10A/µs
Positive Step Change in Output Current 50% Io_max to 75% Io_max 100 mV
Negative Step Change in Output Current 75% Io_max to 50% Io_max 100 mV
Settling Time Settling to be within regulation band (Vo +/- 2.5%) 200 µs
Turn-On Transient
Start-Up Time, from On/Off Control From Enable high to 10% of Vo 10 ms
Start-Up Time, from input power From Vin=12V to 10% of Vo 10 ms
Minimum Output Capacitance Ex: OSCON 6.3V/680µF (ESR 13 mΩ max.) 680 µF
Maximum Output Startup Capacive Load Full Load 6800 µF
Minimum Input Capacitance Ex: OSCON 16V/270µF (ESR 18 mΩ max.) 270 µF
EFFICIENCY
Vo=0.9V Vin=12V, Io=15A 75 %
Vo=1.2V Vin=12V, Io=15A 79 %
Vo=1.5V Vin=12V, Io=15A 81 %
Vo=1.8V Vin=12V, Io=15A 84 %
Vo=2.5V Vin=12V, Io=15A 87 %
Vo=3.3V Vin=12V, Io=15A 89 %
Vo=5.0V Vin=12V, Io=15A 91 %
FEATURE CHARACTERISTICS
Switching Frequency fixed 300 KHz
ON/OFF Control Positive logic (internally pulled high)
Logic High Module On (or leave the pin open) 2.4 5.5 V
Logic Low Module Off 0 0.8 V
GENERAL SPECIFICATIONS
MTBF Telcordia SR-332 Issue1 Method1 Case3 at 50°C 2.1 M hours
Weight 16.5 grams