Paralleled operation

L6206Q

18/27

DocID022028 Rev 3

Figure 15. Parallel connection for higher current

To operate the device in parallel and maintain a lower overcurrent threshold, half bridge 1

and the half bridge 2 of bridge A can be connected in parallel and the same is done for

bridge B, as shown in Figure 16. In this configuration, the peak current for each half bridge

is still limited by the bond wires for the supply and sense pins so the dissipation in the device

is reduced, but the peak current rating is not increased.

When connected in this configuration the overcurrent detection circuit, senses the sum of

the current in upper devices connected in parallel. With the enable pins connected in

parallel, an overcurrent turns off both bridges.

Since the circuit senses the total current in the upper devices, the overcurrent threshold is

In this configuration, the resulting bridge has the following characteristics.

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Equivalent device: full bridge

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2.5 A max. RMS load current

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5.6 A max. OCD threshold