TA8463F

TA8463F TOSHIBA BIPOLAR LINEAR INTEGRATED CIRCUIT SILICON MONOLITHIC TA8463F SINGLE CHIP 3 PHASE MOTOR DRIVER FOR FDD SPINDLE MOTOR. The TA8463F is Single Chip Motor Driver IC for FDD Spindle Motor. FEATURES l 1 Chip motor driver with 3 phase semi−linear driving. l Adjustment free with digital servo system. l 300, 360 rpm are obtained. l Built−in index pulse output current. l Operating supply voltage range : VCC = 4.2~7V l Output current : IO (MAX.) = 0.5 A (AVE.) l Built−in thermal shutdown circuit. l Built−in over current protection circuit. l Built−in stand−by circuit. Weight : 0.61 g (Typ.) 1 2001-06-13 BLOCK DIAGRAM TA8463F 2 2001-06-13 PIN FUNCTION PIN No. SYMBOL FUNCTIONAL DESCRIPTION 29 Ha+ l Hall Amp. + / − Input Terminal. 30 Ha− 1 Hb+ 2 Hb− 3 Hc+ The Hall Input Range is ; VH = 50~300 [mVp−p] CMR = 1.3~(VCC-0.9) [V] 4 Hc− 28 IH l Hall Bias Negative Side Connecting Terminal. Open collector output. 5 FGIN− l FG Amp. Negative Input Terminal. 6 FGIN+ l FG Amp. Positive Input Terminal. 14 FGO l FG Amp. Output Terminal. High Sensitivity of FG Amp. ; VHFG = 2.5 mV 7 A+ l Error Amp. Output Terminal. 8 A− l Error Amp. Input Terminal. External Ports Value (C.R) is determined by matching between Motor and IC. 9 PWM l F / V Converter Output Terminal Reference : No.7 and No.8 TA8463F EQUIVALENT CIRCUIT 3 2001-06-13 PIN No. SYMBOL FUNCTIONAL DESCRIPTION 10 ID+ l Index Positive Input Terminal. 11 ID− l Index Negative Input Terminal. ...