FDMA430NZTYPICAL CHARACTERISTICS (continued) (TJ = 25°C unless otherwise noted) 2 DUTY CYCLE−DESCENDING ORDER 1 D = 0.5 0.2 0.1 0.05 0.02 0.01 PDM 0.1 Impedance t1 , Normalized Thermal t2 NOTES: Z qJA DUTY FACTOR: D = t SINGLE PULSE 1 / t2 PEAK TJ = PDM × ZqJA × RqJA + TA R 0.01 qJA = 145°C/W 10−4 10−3 10−2 10−1 100 101 102 103 t, Rectangular Pulse Duration (s)Figure 12. Transient Thermal Response Curve POWERTRENCH is a registered trademark of Semiconductor Components Industries, LLC dba “ onsemi ” or its affiliates and/or subsidiaries in the United States and/or other countries. MicroFET is a trademark of Semiconductor Components Industries, LLC dba “ onsemi ” or its affiliates and/or subsidiaries in the United States and/or other countries. www.onsemi.com5