Rohm Co., Ltd.

Tomoya Saito

Masaaki Nakayama

Krishnachandran Krishnan Nair

Mathew George

A multiple-output load driving device includes a plurality of output terminals (OUTto OUT) for outputting an output current to each of a plurality of loads (Zto Z), a control portion () configured to select either a non-DC current mode in which a non-DC current is used as the output current or a DC current mode in which a DC current is used as the output current, and a first terminal (MSET). In a case where a low-level signal is supplied to the first terminal, in the non-DC current mode, the non-DC current is outputted from all of the plurality of output terminals. In a case where a high-level signal is supplied to the first terminal, in the non-DC current mode, the DC current is outputted from a predetermined one (OUT) of the output terminals, while the non-DC current is outputted from the other output terminals (OUTto OUT).

Multiple-output load driving device

Provided is a light-emitting element drive device including a transistor control unit arranged to drive and control a transistor connected to a light-emitting element, an output ground fault detection unit arranged to output an output ground fault detection signal corresponding to the voltage level at a connection node between the light-emitting element and the transistor, a stop control unit arranged to stop driving the transistor when the output ground fault detection signal indicates an output ground fault, and a mask signal generation unit arranged to generate a mask signal that masks the output ground fault detection signal on device startup.

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Kyoto, Japan

Tomoya Saito