Datasheet

NCS12 Series
Isolated 12W 4:1 Input Single & Dual Output DC/DC Converters
KDC_NCS12C.B02 Page 2 of 14
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OUTPUT CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
Rated power All output types 12 W
Minimal load to meet datasheet specification 10 %
Voltage set point accuracy
Positive outputs ±2
Negative outputs ±3 %
Line regulation Low line to high line
Positive outputs
0.04 0.1
%
Negative outputs
0.3 1
Cross Regulation
D1205 & D4805 ±4 ±6.5
%
D1212, D1215 ,D4812, D4815 ±2 ±5
Transient response
Peak deviation (12.5-37.5% & 37.5-12.5% swing) 5 %V
out
Settling time
(within 1% V
out
Nom.)
Single output types
500
s
Dual output types
250
ISOLATION CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
Isolation test voltage Flash tested for 1 seconds 1500 VDC
Resistance Viso = 1kVDC 1 GΩ
Capacitance
S1203, S1205, S4803, S4805 600
pF
All other types 230
ABSOLUTE MAXIMUM RATINGS
Short-circuit protection (for SELV input voltages) 30 minutes
Control pin input voltage 18V Max
Lead temperature 1.0mm from case for 10 seconds (to JEDEC JESD22-B106 ISS C) 260°C
Input voltage, NCS12 12V input types 40V
Input voltage, NCS12 48V input types 80V
GENERAL CHARACTERISTICS
1
Parameter Conditions Min. Typ. Max. Units
Switching frequency
S1203, S1205, S4803 & S4805 340
kHz
All other types 220
Control pin input
Module on, pin unconnected or open collector floating
Module off 0.8 V
TEMPERATURE CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
Operation With derating - see derating graph -40 85
°C
Storage -50 125
Case temperature above ambient
100% Load, Nom V
IN,
Still Air
NCS12S1203C 65
NCS12S1215C, NCS12D1205C, NCS12D4805C 60
All other types 44
Thermal shutdown Case Temperature
Single 3.3V & 5V outputs 135
All other types 120