Two independent disable inputs are provided to force the H-Bridge outputs to tri-state (high impedance off-state). Two independent inputs provide polarity control of two half-bridge totem-pole outputs. A Status Flag output reports undervoltage, overcurrent, and overtemperature fault conditions. ![]() A load current feedback feature provides a proportional (0.24% of the load current) current output suitable for monitoring by a microcontroller's A/D input. Output loads can be pulse width modulated (PWM-ed) at frequencies up to 20 kHz. Internal peak-current limiting (regulation) is activated at load currents above 6.5 A ± 1.5 A. RMS current capability is subject to the degree of heatsinking provided to the device package. The 33926 is able to control inductive loads with currents up to 5.0 A peak. ![]() The 33926 is a monolithic H-Bridge Power IC designed primarily for automotive electronic throttle control but is applicable to any low-voltage DC servo motor control application within the current and voltage limits stated in this specification.
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