The HT7K1411 is a 1-channel H-bridge driver with a maximum motor peak current of 3.2A which is specifically used in a wide range of products such as home appliances, swing head motors, electronic locks / valves, auto-reclose relay, etc.
As these highly functionally integrated devices have the feature of low on-resistance power transistor, their efficiency is much improved resulting in reduced device temperature allowing operation over a larger ambient temperature range.
Two input control pins provide four modes of operation, Forward, Reverse, Brake and Standby / Sleep. The PWM input control frequency can be up to 200kHz making it useful for accurate speed control applications.
A full range of protection features, including OCP, OSP and OTP are also provided to prevent device damage even if the motor stalls or experiences a short circuit in critical operating environments.
As the automatic sleep mode entry mechanism is controlled using the same two input control pins, no additional shutdown signal is required and in addition an ultra-low sleep mode current of only 1μA leads to extended battery lifetimes.