DESCRIPTION
The functions built in EUM6883 are linear control drive mode, fan tachometer, lock detection, automatic restart, Hall Bias and thermal shutdown. When output voltage changes from L to H (or H to L), linear control mode gently drives the output stage. This makes EUM6883 suitable for the electronics equipment which required low noise and high reliability. If the motor is stalled by the external force, overdrive current may incur coil overheat or burning. To prevent this, the lock detection circuit shuts off the driver. The automatic restart circuit resumes powering up the driver after a few seconds. Rotation detection open drain output is pulled down when a motor runs. FG is the Fan tachometer output, and HB provides bias supply for a Hall sensor. FEATURES
z z z z z z z z z Linear Control for Single-Phase Full Wave Drive Wide Input Range 1.8V~13.8V Low Saturation Output Voltage 0.5V @250mA FG Tachometer Output Lock Detection, Automatic Restart - RD = L when Rotation; RD = H wh...
Eutech Microelectronics
