UA9406

UTC UA9406 LINEAR INTEGRATED CIRCUIT 2-PHASE HALF-WAVE MOTOR PREDRIVER DESCRIPTION The UTC UA9406 is a 2-phase, half-wave motor predriver suited for fan motors. FEATURES *Lock detection and rotational speed sensing mechanisms are built in. *Compact 8-pin SOP package reduces the number of external components required. *Automatic restart when the motor lock is undone. *Hall inputs have a hysteresis. SOP-8 BLOCK DIAGRAM Vcc 8 7 6 5 Autornatic reset LOGIC Hall amp REGULATOR Rock Det 1 2 3 4 Hall UTC UNISONIC TECHNOLOGIES CO., LTD. 1 QW-R109-014,A UTC UA9406 PARAMETER LINEAR INTEGRATED CIRCUIT SYMBOL RATINGS 30 550* -30 ~ +75 -55 ~ +125 70 ABSOLUTE MAXIMUM RATINGS UNIT V mW ℃ ℃ mA Applied voltage Vcc Power dissipation Pd Operating Temperature Topr Storage Temperature Tstg Output current Io Max. * Reduced by 5.5mW for each increase in Ta of 1℃ over 25℃ When mounted on a glass epoxy board (50×50×1.6mm) OPERATING POWER SUPPLY VOLTAG (Ta=25℃) PARAMETER Applied voltage SYMBOL Vcc TEST CONDITIONS Operate within the allowable power Dissipation for –30℃