8.3.2.2 Internal QOD Considerations

Special considerations must be taken when using the internal R_PD by shorting the QOD pin to the VOUT pin. The internal R_PD is a pulldown resistance designed to quickly discharge a load after the switch has been disabled. Care must be used to ensure that excessive current does not flow through R_PD during discharge so that the maximum T_J of 150°C is not exceeded. When using only the internal R_PD to discharge a load, the total capacitive load must not exceed 200 µF. Otherwise, an external resistor, R_EXT, must be used to ensure the amount of current flowing through R_PD is properly limited and the maximum T_J is not exceeded. To ensure the device is not damaged, the remaining charge from C_L must decay naturally through the internal QOD resistance and must not be driven.