spindle motor driver.
* 3-phase full-wave 120° duty factor system
* Low power consumption due to a direct PWM system
* D-MOS transistor with low ON resistance (0.6 Ω typ.) on the o.
* Optical disk drive of CD-ROM, DVD-ROM, CD-R, CD-RW etc.
1
AN8472SA
s Block Diagram
VDD BC4 BC3 BC2
ICs for Comp.
Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 Symbol VH H3L H3H H2L H2H H1L H1H EC ECR FG Start VPUMP Description Hall bias pin Hall element-3 negative input pin Hall element-3 positive input pin Hall element-2 negative input pin Hall element-2 positive input .
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