APC18T12-9J データシートの表示（PDF） - Astec Semiconductor => Silicon Link
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APC18T12-9J Datasheet PDF : 10 Pages
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Technical Reference Notes
APC18T12 Series
Electrical Specifications (continued)
OUTPUT SPECIFICATIONS
Parameter
Device Symbol
Min
Typ
Dynamic Response8 (CO = 10uF
Tantalum + 1uF Ceramic)
Load Change of 50% step
∆IO/∆t
-
-
2.5
anywhere between 10% to 100%
of rated load
Peak Deviation
All
-
Settling Time to VO, Nom <5%
-
Peak deviation
Dynamic Response8 (CO = 150uF
x2 Special Polymer Aluminum
∆IO/∆t
Capacitors)
Load Change of 50% step
anywhere between 10% to 100%
of rated load
-
250
-
100
2.5
Max
-
300
150
Unit
A/µs
mV
µs
A/µs
Peak Deviation
Settling Time to VO, Nom <5%
All
Peak deviation
Output Voltage Trim Range9
All
Remote Sense10
All
150
200
mV
150
200
µs
0.75
5.50
V
-
10%
V
NOTE: 1. The converter is not internally fused. Recommended external fuse, Cooper Bussman 6125FA12A or
equivalent
2. External input capacitance required. See Figure 1.
4. Refer to Appendix A3 for the output ripple and Noise Test Measurement Setup.
5. Output current limited by 80W/Vo. Output Power Derating applies at elevated temperature. See Appendix
B for the Thermal Derating Curves.
6. OCP and OTP are in hiccup mode. The converter will auto restart without the need to recycle the input
voltage or toggle the enable signal and once the fault is removed. Vo higher than 1.5V, true OCP exists.
Vo less than 1.5V, OTP is used for OCP. Over current of not higher 150% for Vo less than 1.5V is
recommended. Typical overload condition is 150% or 27A. The module with Vo < 1.5V may not be
survival from over current exceeding 30A.
8. Load step response shall be measured at the load side of the output capacitors. See Appendix A4 for
the output and input cap requirement.
9. See appropriate Trim Equation and configuration in Appendix A6.
10. The combination of remote sense and output trim adjust cannot exceed 5.5V.
MODEL: APC18T12 SERIES
NOVEMBER 4, 2004 - REVISION 00
SHEET 4 OF 10
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