SLIS187 June 2021 TLC6A598
Refer to the PDF data sheet for device specific package drawings
When switching off inductive loads, the potential at pin OUT rises to VDS(CL) potential, because the inductance intends to continue driving the current. The clamping voltage is necessary to prevent destruction of the device, see Figure 8-1 for the clamping circuit principle. Nevertheless, the maximum allowed load inductance is limited.
During demagnetization of inductive loads, energy has to be dissipated in the TLC6A598. This energy can be calculated with following equation:
Following equation simplifiers under the assumption of RL = 0:
The maximum energy, which is converted into heat, is limited by the thermal design of the component.