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TDA5149G Datasheet(PDF) 5 Page - NXP Semiconductors |
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TDA5149G Datasheet(HTML) 5 Page - NXP Semiconductors |
5 / 28 page 1996 May 06 5 Philips Semiconductors Product specification 12 V Voice Coil Motor (VCM) driver and spindle motor pre-driver combination chip TDA5149G PINNING SYMBOL PIN I/O DESCRIPTION CAPY 1 I/O charge pump capacitor MOT0 2 I motor centre tap input H1 3 O driver output to gate of upper power FET 1 MOT1 4 I back EMF comparator input 1 L1 5 O driver output to gate of lower power FET 1 H2 6 O driver output to gate of upper power FET 2 MOT2 7 I back EMF comparator input 2 L2 8 O driver output to gate of lower power FET 2 H3 9 O driver output to gate of upper power FET 3 MOT3 10 I back EMF comparator input 3 L3 11 O driver output to gate of lower power FET 3 IDRIVE 12 I adjustment for output stage drive current SPINSENSEH 13 I positive spindle sense amplifier input SPINSENSEL 14 I negative spindle sense amplifier input SISENS 15 O spindle sense amplifier output AGND 16 − general analog ground; note 1 Iref 17 O reference current generator output SINTIN 18 I negative integrator input ISPIN 19 I positive integrator input, average current adjustment SICOMP 20 O integrator output RPOS 21 I duty cycle modulator input CSS1 22 I/O soft switching capacitor 1 CSS2 23 I/O soft switching capacitor 2 STOSC 24 I/O sawtooth oscillator capacitor SCANOUT 25 O test output PORDELAY 26 I/O power-on reset delay capacitor (active LOW) VDDA1 27 − analog supply voltage 1 (+5 V) POR5ADJ 28 O adjustment of POR threshold (for +5 V) POR12ADJ 29 O adjustment of POR threshold (for +12 V) AMPIN − 30 I negative input of the uncommitted operational amplifier AMPIN+ 31 I positive input of the uncommitted operational amplifier PGND1 32 − power ground 1 for VCM DMOS; note 1 AMPOUT 33 O uncommitted operational amplifier output RESETP 34 O power-on reset digital output with passive pull-up resistor RESETA 35 O power-on reset digital output with active pull-up resistor VCM− 36 O negative output voltage of the VCM power stage TEMPMON 37 O temperature monitor output CLAMP 38 I/O clamp capacitor used for head retraction VDDV 39 − power supply for VCM DMOS driver (+12 V) VCMIN2 40 I switchable VCM control input voltage |
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