AN8746SA

ICs for Compact Disc/CD-ROM Player AN8746SA PWM driver IC for portable CD player s Overview The AN8746SA is a 4-channel actuator/motor drive IC by DMOS direct PWM method for a portable CD player. 11.0±0.3 32 17 Unit: mm s Features RON = 1.8 Ω (typ.) Supply voltage range (Control block: 2.0 V to 3.6 V, power block: 1.2 V to 3.6 V) Current at standby (Control block: 1 µA or less, power block: 1 µA or less) With an output pin of monitoring 1/2 of the power supply voltage 0.65±0.10 1.5±0.2 1 16 6.1±0.3 8.1±0.3 (0.5) 0.2+0.10 –0.05 (0.625) 0.65 0.3 –0.05 Seating plane SSOP032-P-0300 s Applications Portable CD player s Block Diagram PGND4 PGND3 0.1±0.1 +0.10 0.65±0.10 VGO 18 15 N.C. VM4 32 31 30 29 28 27 26 25 24 23 22 21 20 19 Logic circuit Reset TSD Predriver H bridge H bridge Logic circuit Predriver VG limiter VBG Predriver VM1 monitor Logic circuit H bridge H bridge Predriver Logic circuit 10 11 12 13 14 MON Fi1 Ri1 Ro1 PGND1 Fo1 Fo2 PGND2 Ro2 Ri2 Fi2 GND VM1 VC VM2 16 1 2 3 4 5 6 7 8 9 17 VM3 Ro4 Ro3 VGI Fo4 Fo3 Ri4 Ri3 AC Fi4 Fi3 PC 1 AN8746SA s Pin Descriptions Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Symbol VM1 VC MON Fil Ril Rol PGND1 Fo1 Fo2 PGND2 Ro2 Ri2 Fi2 GND N.C. VM2 Description Ch. 1 power supply Control circuit power supply VM1 monitor Ch. 1 forward direction input pin Ch. 1 reverse direction input pin Ch. 1 reverse direction output pin Ch. 1 power ground Ch. 1 ...