DS_NC12S60A_01102008
2
TECHNICAL SPECIFICATIONS (T
A
=25°C, airflow rate=400LFM, V
in
=12Vdc, nominal Vout unless otherwise noted)
PARAMETER NOTES and CONDITIONS NC12S0A0V60
Min. Typ. Max. Units
ABSOLUTE MAXIMUM RATINGS
Input Voltage 12.6 Vdc
Operating Temperature 0 125 °C
Storage Temperature Refer to Figure 36 for the measuring point -40 125 °C
Input/Output Isolation Voltage Non-isolated NA V
INPUT CHARACTERISTICS
Operating Input Voltage 11.04 12 12.6 V
Input Under-Voltage Lockout
Turn-On Voltage Threshold 9.4 V
Turn-Off Voltage Threshold 8.3 V
Lockout Hysteresis Voltage 1.1 V
Maximum Input Current 100% Load, 11.04Vin, 5Vout 32 A
No-Load Input Current 250
mA
Off Converter Input Current 40 mA
Input Reflected-Ripple Current Refer to Figure 35 150 mA
Input Voltage Ripple Rejection 120 Hz 45 dB
Output Short-Circuit Input Current 1 A
OUTPUT CHARACTERISTICS
Output Voltage Adjustment Range 0.9 5.0
V
Output Voltage Set Point Vin=12V, Io=Io,max, 1% trim resistors -3.0 +3.0 %
Output Voltage Regulation
Over Load Io=Io,min to Io,max -1.5 +1.5 %
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, 0.1µF ceramic, 10µF tantalum 50 mV
RMS Full Load, 0.1µF ceramic, 10µF tantalum 15 mV
Output Current Range 0 60 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 94 A
DYNAMIC CHARACTERISTICS
Out Dynamic Load Response 12Vin, 10µF Tan & 1µF Ceramic load cap, 10A/µs
Positive Step Change in Output Current 50% Io,max to 75% Io,max 75 100 mV
Negative Step Change in Output Current 75% Io,max to 50% Io,max 75 100 mV
Settling Time Settling to be within regulation band (+/- 3.0%) 150 µs
Turn-On Transient Io=Io.max
Start-Up Time, From On/Off Control Vin=12V, Vo=10% of Vo,set 10
ms
Start-Up Time, From Input Vo=10% of Vo,set 30 ms
Minimum Output Startup Capacitive Load
Ex: Four OSCON 6.3V/680µF (ESR 13mΩ max each)
2720 µF
Maximum Output Startup Capacitive Load Full load 8160 µF
Minimum Input Capacitance
Ex: Three OSCON 16V/270µF (ESR 18m
Ω
max each)
810 µF
EFFICIENCY
Vo=0.9V
Vin=12V, Io=60A 83 %
Vo=1.2V Vin=12V, Io=60A 86 %
Vo=1.5V Vin=12V, Io=60A 88 %
Vo=1.8V Vin=12V, Io=60A 90 %
Vo=2.5V Vin=12V, Io=60A 92 %
Vo=3.3V Vin=12V, Io=60A 93 %
Vo=5.0V Vin=12V, Io=60A 95 %
FEATURE CHARACTERISTICS
Switching Frequency 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
Remote Sense Range 400 mV
GENERAL SPECIFICATIONS
Calculated MTBF
Telcordia SR-332 Issue1 Method1 Case3 at 50℃
1.29 M hours
Weight 37 grams
Over-Temperature Shutdown
Refer to Figure 36 for the measuring point 130 °C
(12 paginas)
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