IR-CUT驱动，可代替国内外的AP1511，P2P，不用更改电路，可直接上板用，
D6211 is an IR filter switch driver IC designed for switching IR filter in IR-Cut
Removable (ICR) of IP CAM. With appropriate input controls, D6211 functions as a
one-channel, low saturation, bi-directional H-bridge driver. Built-in protection diode
circuit can minimize the disturbance caused by the feedback current when the ICR is
shut down, or when ESD impulse occurs.
