Datasheet Summary
Ordering number : EN4946A
Monolithic Digital IC
Actuator Driver for Portable CD Players
Applications
The LB8108M is an actuator driver for use in portable CD players that operate at a power supply voltage of 2.4 (two nicad batteries) or 3.0 V (two dry-cell batteries).
Functions and Features
- Includes four H bridge driver channels to drive the four CD player actuators (focus coil, tracking coil, spindle motor and sled motor). (output dynamic range: maximum of about 2 V)
- Includes a 3.9 V (typical) step-up circuit to supply the DSP, ASP and microprocessor used in the CD player. Also includes another voltage step-up circuit whose voltage can be set with external resistors....