AN8787NSB

ICs for Compact Disc/CD-ROM Player AN8787NSB 4-channel linear driver IC for CD/CD-ROM drive s Overview The AN8787NSB is a 4-channel driver IC that has 2-channel of H-bridge method actuator driver with current feedback, one channel of BTL type traverse driver and one channel of tri-state output type loading driver. It is optimum for actuator or motor driver of CD/CD-ROM player. It comes with a surface mount package that excels in heat radiating characteristic. 18.4±0.2 (5.15) (4.8) 28 22 21 15 (1.315) 8.3±0.2 10.93±0.30 Unit: mm 0.30–0.05 +0.10 0° to 10° 1 7 8 14 0.65±0.20 2.7±0.2 s Features Little phase delay due to current feedback method (2-channel for actuator) Channels for loading motor (H-bridge system) are available for three modes of forward rotation, reverse rotation and braking Muting SW with 2 modes: A loading channel is in operation, and the other 3 channels are in muting; Loading is in muting and the other 3 channels are in operation. Standby switch to stop all functions Wide output dynamic range is available regardless of a reference power source on the system. I/O gain setting by an external resistor Thermal shut-down circuit built-in (with hysteresis) (1.2) 0.8 (6.4) 0.35+0.10 –0.05 Seating plane HSOP042-P-0400 s Applications CD/CD-ROM drive DVD/DVD-ROM drive 0.1±0.1 1 AN8787NSB s Block Diagram PVC1 PVC2 PVC5 ICs for Compact Disc/CD-ROM Player PVC3 PVC4 9 D1+ D1− D2− D2+ D3+ D3− D4+ D4− S3 8 21 20 18 17 15 16 7 ...