10 Typical Characteristics

The maximum recommended average power safe operating area (SOA) at each Vin is determined by the lower value of the 1.5 W limit (dotted line) and the corresponding thermal derating curve (solid line) at that input voltage. It is not recommended to operate at an ambient temperature higher than 125^oC. The thermal derating power is acquired with an evaluation board similar to the EVM shown in the Application and Implementation section. T_shut represents the primary-side over-temperature shutdown rising threshold. As shown in the Electrical Characteristics table, the typical T_shut value is 160^oC, and minimal T_shut value is 150^oC. The SOA derating curve with both T_shut = 160^oC and 150^oC are provided below. The SOA curves under four common VDD-VEE settings, 10V, 12V, 15V, and 18V are characterized. In each SOA curve, the input voltage is swept from 10V to 18V. To represent a worst-case condition with T_shut = 150^oC, the test is done in a shieded box to block circulating air in the thermal chamber.

Figure 10-1 SOA Derating Curves: V_VDD-VEE = 10 V, V_COM-VEE = 5 V, T_shut=160^oC, No Load on V_COM-VEE.

Figure 10-3 SOA Derating Curves: V_VDD-VEE = 15 V, V_COM-VEE = 5 V, T_shut=160^oC, No Load on V_COM-VEE.

Figure 10-5 SOA Derating Curves: V_VDD-VEE = 15 V, V_COM-VEE = 5 V, T_shut=150^oC, , No Load on V_COM-VEE, tested in a shielded box.

Figure 10-2 SOA Derating Curves: V_VDD-VEE = 12 V, V_COM-VEE = 5 V, T_shut=160^oC, No Load on V_COM-VEE.

Figure 10-4 SOA Derating Curves: V_VDD-VEE = 18 V, V_COM-VEE = 5 V, T_shut=160^oC, No Load on V_COM-VEE.

Figure 10-6 Load Transient Response: No Load to 1 W, VIN = 12 V, V_VDD-VEE = 12 V, V_COM-VEE = 5 V

Figure 10-8 V_VDD-VEE Load Regulation: VIN = 12 V, V_VDD-VEE = 12 V, V_COM-VEE = 5 V

Figure 10-10 V_VDD-VEE Load Regulation: VIN = 18 V, V_VDD-VEE = 12 V, V_COM-VEE = 5 V

Figure 10-12 V_COM-VEE Load Regulation: VIN = 12 V, V_VDD-VEE = 12 V, V_COM-VEE = 5 V

Figure 10-14 V_COM-VEE Load Regulation: VIN = 18 V, V_VDD-VEE = 12 V, V_COM-VEE = 5 V

Figure 10-16 Efficiency vs Load on V_VDD-VEE: VIN = 12 V, V_VDD-VEE = 12 V, V_COM-VEE = 5 V, No Load on V_COM-VEE

Figure 10-18 Efficiency vs Load on V_VDD-VEE: VIN = 18 V, V_VDD-VEE = 12 V, V_COM-VEE = 5 V, No Load on V_COM-VEE

Figure 10-20 Input Current vs Load on V_VDD-VEE: VIN = 12 V, V_VDD-VEE = 12 V, V_COM-VEE = 5 V, No Load on V_COM-VEE

Figure 10-22 Input Current vs Load on V_VDD-VEE: VIN = 18 V, V_VDD-VEE = 12 V, V_COM-VEE = 5 V, No Load on V_COM-VEE

Figure 10-7 V_VDD-VEE Load Regulation: VIN = 10 V, V_VDD-VEE = 12 V, V_COM-VEE = 5 V

Figure 10-9 V_VDD-VEE Load Regulation: VIN = 15 V, V_VDD-VEE = 12 V, V_COM-VEE = 5 V

Figure 10-11 V_COM-VEE Load Regulation: VIN = 10 V, V_VDD-VEE = 12 V, V_COM-VEE = 5 V

Figure 10-13 V_COM-VEE Load Regulation: VIN = 15 V, V_VDD-VEE = 12 V, V_COM-VEE = 5 V

Figure 10-15 Efficiency vs Load on V_VDD-VEE: VIN = 10 V, V_VDD-VEE = 12 V, V_COM-VEE = 5 V, No Load on V_COM-VEE

Figure 10-17 Efficiency vs Load on V_VDD-VEE: VIN = 15 V, V_VDD-VEE = 12 V, V_COM-VEE = 5 V, No Load on V_COM-VEE

Figure 10-19 Input Current vs Load on V_VDD-VEE: VIN = 10 V, V_VDD-VEE = 12 V, V_COM-VEE = 5 V, No Load on V_COM-VEE

Figure 10-21 Input Current vs Load on V_VDD-VEE: VIN = 15 V, V_VDD-VEE = 12 V, V_COM-VEE = 5 V, No Load on V_COM-VEE